diff options
Diffstat (limited to 'vendor/github.com/prometheus/common')
21 files changed, 0 insertions, 3797 deletions
diff --git a/vendor/github.com/prometheus/common/LICENSE b/vendor/github.com/prometheus/common/LICENSE deleted file mode 100644 index 261eeb9..0000000 --- a/vendor/github.com/prometheus/common/LICENSE +++ /dev/null @@ -1,201 +0,0 @@ - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. 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For the purposes - of this License, Derivative Works shall not include works that remain - separable from, or merely link (or bind by name) to the interfaces of, - the Work and Derivative Works thereof. - - "Contribution" shall mean any work of authorship, including - the original version of the Work and any modifications or additions - to that Work or Derivative Works thereof, that is intentionally - submitted to Licensor for inclusion in the Work by the copyright owner - or by an individual or Legal Entity authorized to submit on behalf of - the copyright owner. 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If You - institute patent litigation against any entity (including a - cross-claim or counterclaim in a lawsuit) alleging that the Work - or a Contribution incorporated within the Work constitutes direct - or contributory patent infringement, then any patent licenses - granted to You under this License for that Work shall terminate - as of the date such litigation is filed. - - 4. Redistribution. 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The contents - of the NOTICE file are for informational purposes only and - do not modify the License. You may add Your own attribution - notices within Derivative Works that You distribute, alongside - or as an addendum to the NOTICE text from the Work, provided - that such additional attribution notices cannot be construed - as modifying the License. - - You may add Your own copyright statement to Your modifications and - may provide additional or different license terms and conditions - for use, reproduction, or distribution of Your modifications, or - for any such Derivative Works as a whole, provided Your use, - reproduction, and distribution of the Work otherwise complies with - the conditions stated in this License. - - 5. Submission of Contributions. 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However, in accepting such obligations, You may act only - on Your own behalf and on Your sole responsibility, not on behalf - of any other Contributor, and only if You agree to indemnify, - defend, and hold each Contributor harmless for any liability - incurred by, or claims asserted against, such Contributor by reason - of your accepting any such warranty or additional liability. - - END OF TERMS AND CONDITIONS - - APPENDIX: How to apply the Apache License to your work. - - To apply the Apache License to your work, attach the following - boilerplate notice, with the fields enclosed by brackets "[]" - replaced with your own identifying information. (Don't include - the brackets!) The text should be enclosed in the appropriate - comment syntax for the file format. We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. diff --git a/vendor/github.com/prometheus/common/NOTICE b/vendor/github.com/prometheus/common/NOTICE deleted file mode 100644 index 636a2c1..0000000 --- a/vendor/github.com/prometheus/common/NOTICE +++ /dev/null @@ -1,5 +0,0 @@ -Common libraries shared by Prometheus Go components. -Copyright 2015 The Prometheus Authors - -This product includes software developed at -SoundCloud Ltd. (http://soundcloud.com/). diff --git a/vendor/github.com/prometheus/common/expfmt/decode.go b/vendor/github.com/prometheus/common/expfmt/decode.go deleted file mode 100644 index c092723..0000000 --- a/vendor/github.com/prometheus/common/expfmt/decode.go +++ /dev/null @@ -1,429 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package expfmt - -import ( - "fmt" - "io" - "math" - "mime" - "net/http" - - dto "github.com/prometheus/client_model/go" - - "github.com/matttproud/golang_protobuf_extensions/pbutil" - "github.com/prometheus/common/model" -) - -// Decoder types decode an input stream into metric families. -type Decoder interface { - Decode(*dto.MetricFamily) error -} - -// DecodeOptions contains options used by the Decoder and in sample extraction. -type DecodeOptions struct { - // Timestamp is added to each value from the stream that has no explicit timestamp set. - Timestamp model.Time -} - -// ResponseFormat extracts the correct format from a HTTP response header. -// If no matching format can be found FormatUnknown is returned. -func ResponseFormat(h http.Header) Format { - ct := h.Get(hdrContentType) - - mediatype, params, err := mime.ParseMediaType(ct) - if err != nil { - return FmtUnknown - } - - const textType = "text/plain" - - switch mediatype { - case ProtoType: - if p, ok := params["proto"]; ok && p != ProtoProtocol { - return FmtUnknown - } - if e, ok := params["encoding"]; ok && e != "delimited" { - return FmtUnknown - } - return FmtProtoDelim - - case textType: - if v, ok := params["version"]; ok && v != TextVersion { - return FmtUnknown - } - return FmtText - } - - return FmtUnknown -} - -// NewDecoder returns a new decoder based on the given input format. -// If the input format does not imply otherwise, a text format decoder is returned. -func NewDecoder(r io.Reader, format Format) Decoder { - switch format { - case FmtProtoDelim: - return &protoDecoder{r: r} - } - return &textDecoder{r: r} -} - -// protoDecoder implements the Decoder interface for protocol buffers. -type protoDecoder struct { - r io.Reader -} - -// Decode implements the Decoder interface. -func (d *protoDecoder) Decode(v *dto.MetricFamily) error { - _, err := pbutil.ReadDelimited(d.r, v) - if err != nil { - return err - } - if !model.IsValidMetricName(model.LabelValue(v.GetName())) { - return fmt.Errorf("invalid metric name %q", v.GetName()) - } - for _, m := range v.GetMetric() { - if m == nil { - continue - } - for _, l := range m.GetLabel() { - if l == nil { - continue - } - if !model.LabelValue(l.GetValue()).IsValid() { - return fmt.Errorf("invalid label value %q", l.GetValue()) - } - if !model.LabelName(l.GetName()).IsValid() { - return fmt.Errorf("invalid label name %q", l.GetName()) - } - } - } - return nil -} - -// textDecoder implements the Decoder interface for the text protocol. -type textDecoder struct { - r io.Reader - p TextParser - fams []*dto.MetricFamily -} - -// Decode implements the Decoder interface. -func (d *textDecoder) Decode(v *dto.MetricFamily) error { - // TODO(fabxc): Wrap this as a line reader to make streaming safer. - if len(d.fams) == 0 { - // No cached metric families, read everything and parse metrics. - fams, err := d.p.TextToMetricFamilies(d.r) - if err != nil { - return err - } - if len(fams) == 0 { - return io.EOF - } - d.fams = make([]*dto.MetricFamily, 0, len(fams)) - for _, f := range fams { - d.fams = append(d.fams, f) - } - } - - *v = *d.fams[0] - d.fams = d.fams[1:] - - return nil -} - -// SampleDecoder wraps a Decoder to extract samples from the metric families -// decoded by the wrapped Decoder. -type SampleDecoder struct { - Dec Decoder - Opts *DecodeOptions - - f dto.MetricFamily -} - -// Decode calls the Decode method of the wrapped Decoder and then extracts the -// samples from the decoded MetricFamily into the provided model.Vector. -func (sd *SampleDecoder) Decode(s *model.Vector) error { - err := sd.Dec.Decode(&sd.f) - if err != nil { - return err - } - *s, err = extractSamples(&sd.f, sd.Opts) - return err -} - -// ExtractSamples builds a slice of samples from the provided metric -// families. If an error occurrs during sample extraction, it continues to -// extract from the remaining metric families. The returned error is the last -// error that has occurred. -func ExtractSamples(o *DecodeOptions, fams ...*dto.MetricFamily) (model.Vector, error) { - var ( - all model.Vector - lastErr error - ) - for _, f := range fams { - some, err := extractSamples(f, o) - if err != nil { - lastErr = err - continue - } - all = append(all, some...) - } - return all, lastErr -} - -func extractSamples(f *dto.MetricFamily, o *DecodeOptions) (model.Vector, error) { - switch f.GetType() { - case dto.MetricType_COUNTER: - return extractCounter(o, f), nil - case dto.MetricType_GAUGE: - return extractGauge(o, f), nil - case dto.MetricType_SUMMARY: - return extractSummary(o, f), nil - case dto.MetricType_UNTYPED: - return extractUntyped(o, f), nil - case dto.MetricType_HISTOGRAM: - return extractHistogram(o, f), nil - } - return nil, fmt.Errorf("expfmt.extractSamples: unknown metric family type %v", f.GetType()) -} - -func extractCounter(o *DecodeOptions, f *dto.MetricFamily) model.Vector { - samples := make(model.Vector, 0, len(f.Metric)) - - for _, m := range f.Metric { - if m.Counter == nil { - continue - } - - lset := make(model.LabelSet, len(m.Label)+1) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.MetricNameLabel] = model.LabelValue(f.GetName()) - - smpl := &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(m.Counter.GetValue()), - } - - if m.TimestampMs != nil { - smpl.Timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000) - } else { - smpl.Timestamp = o.Timestamp - } - - samples = append(samples, smpl) - } - - return samples -} - -func extractGauge(o *DecodeOptions, f *dto.MetricFamily) model.Vector { - samples := make(model.Vector, 0, len(f.Metric)) - - for _, m := range f.Metric { - if m.Gauge == nil { - continue - } - - lset := make(model.LabelSet, len(m.Label)+1) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.MetricNameLabel] = model.LabelValue(f.GetName()) - - smpl := &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(m.Gauge.GetValue()), - } - - if m.TimestampMs != nil { - smpl.Timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000) - } else { - smpl.Timestamp = o.Timestamp - } - - samples = append(samples, smpl) - } - - return samples -} - -func extractUntyped(o *DecodeOptions, f *dto.MetricFamily) model.Vector { - samples := make(model.Vector, 0, len(f.Metric)) - - for _, m := range f.Metric { - if m.Untyped == nil { - continue - } - - lset := make(model.LabelSet, len(m.Label)+1) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.MetricNameLabel] = model.LabelValue(f.GetName()) - - smpl := &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(m.Untyped.GetValue()), - } - - if m.TimestampMs != nil { - smpl.Timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000) - } else { - smpl.Timestamp = o.Timestamp - } - - samples = append(samples, smpl) - } - - return samples -} - -func extractSummary(o *DecodeOptions, f *dto.MetricFamily) model.Vector { - samples := make(model.Vector, 0, len(f.Metric)) - - for _, m := range f.Metric { - if m.Summary == nil { - continue - } - - timestamp := o.Timestamp - if m.TimestampMs != nil { - timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000) - } - - for _, q := range m.Summary.Quantile { - lset := make(model.LabelSet, len(m.Label)+2) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - // BUG(matt): Update other names to "quantile". - lset[model.LabelName(model.QuantileLabel)] = model.LabelValue(fmt.Sprint(q.GetQuantile())) - lset[model.MetricNameLabel] = model.LabelValue(f.GetName()) - - samples = append(samples, &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(q.GetValue()), - Timestamp: timestamp, - }) - } - - lset := make(model.LabelSet, len(m.Label)+1) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_sum") - - samples = append(samples, &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(m.Summary.GetSampleSum()), - Timestamp: timestamp, - }) - - lset = make(model.LabelSet, len(m.Label)+1) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_count") - - samples = append(samples, &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(m.Summary.GetSampleCount()), - Timestamp: timestamp, - }) - } - - return samples -} - -func extractHistogram(o *DecodeOptions, f *dto.MetricFamily) model.Vector { - samples := make(model.Vector, 0, len(f.Metric)) - - for _, m := range f.Metric { - if m.Histogram == nil { - continue - } - - timestamp := o.Timestamp - if m.TimestampMs != nil { - timestamp = model.TimeFromUnixNano(*m.TimestampMs * 1000000) - } - - infSeen := false - - for _, q := range m.Histogram.Bucket { - lset := make(model.LabelSet, len(m.Label)+2) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.LabelName(model.BucketLabel)] = model.LabelValue(fmt.Sprint(q.GetUpperBound())) - lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_bucket") - - if math.IsInf(q.GetUpperBound(), +1) { - infSeen = true - } - - samples = append(samples, &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(q.GetCumulativeCount()), - Timestamp: timestamp, - }) - } - - lset := make(model.LabelSet, len(m.Label)+1) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_sum") - - samples = append(samples, &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(m.Histogram.GetSampleSum()), - Timestamp: timestamp, - }) - - lset = make(model.LabelSet, len(m.Label)+1) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_count") - - count := &model.Sample{ - Metric: model.Metric(lset), - Value: model.SampleValue(m.Histogram.GetSampleCount()), - Timestamp: timestamp, - } - samples = append(samples, count) - - if !infSeen { - // Append an infinity bucket sample. - lset := make(model.LabelSet, len(m.Label)+2) - for _, p := range m.Label { - lset[model.LabelName(p.GetName())] = model.LabelValue(p.GetValue()) - } - lset[model.LabelName(model.BucketLabel)] = model.LabelValue("+Inf") - lset[model.MetricNameLabel] = model.LabelValue(f.GetName() + "_bucket") - - samples = append(samples, &model.Sample{ - Metric: model.Metric(lset), - Value: count.Value, - Timestamp: timestamp, - }) - } - } - - return samples -} diff --git a/vendor/github.com/prometheus/common/expfmt/encode.go b/vendor/github.com/prometheus/common/expfmt/encode.go deleted file mode 100644 index 11839ed..0000000 --- a/vendor/github.com/prometheus/common/expfmt/encode.go +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package expfmt - -import ( - "fmt" - "io" - "net/http" - - "github.com/golang/protobuf/proto" - "github.com/matttproud/golang_protobuf_extensions/pbutil" - "github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg" - - dto "github.com/prometheus/client_model/go" -) - -// Encoder types encode metric families into an underlying wire protocol. -type Encoder interface { - Encode(*dto.MetricFamily) error -} - -type encoder func(*dto.MetricFamily) error - -func (e encoder) Encode(v *dto.MetricFamily) error { - return e(v) -} - -// Negotiate returns the Content-Type based on the given Accept header. -// If no appropriate accepted type is found, FmtText is returned. -func Negotiate(h http.Header) Format { - for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) { - // Check for protocol buffer - if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol { - switch ac.Params["encoding"] { - case "delimited": - return FmtProtoDelim - case "text": - return FmtProtoText - case "compact-text": - return FmtProtoCompact - } - } - // Check for text format. - ver := ac.Params["version"] - if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") { - return FmtText - } - } - return FmtText -} - -// NewEncoder returns a new encoder based on content type negotiation. -func NewEncoder(w io.Writer, format Format) Encoder { - switch format { - case FmtProtoDelim: - return encoder(func(v *dto.MetricFamily) error { - _, err := pbutil.WriteDelimited(w, v) - return err - }) - case FmtProtoCompact: - return encoder(func(v *dto.MetricFamily) error { - _, err := fmt.Fprintln(w, v.String()) - return err - }) - case FmtProtoText: - return encoder(func(v *dto.MetricFamily) error { - _, err := fmt.Fprintln(w, proto.MarshalTextString(v)) - return err - }) - case FmtText: - return encoder(func(v *dto.MetricFamily) error { - _, err := MetricFamilyToText(w, v) - return err - }) - } - panic("expfmt.NewEncoder: unknown format") -} diff --git a/vendor/github.com/prometheus/common/expfmt/expfmt.go b/vendor/github.com/prometheus/common/expfmt/expfmt.go deleted file mode 100644 index c71bcb9..0000000 --- a/vendor/github.com/prometheus/common/expfmt/expfmt.go +++ /dev/null @@ -1,38 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package expfmt contains tools for reading and writing Prometheus metrics. -package expfmt - -// Format specifies the HTTP content type of the different wire protocols. -type Format string - -// Constants to assemble the Content-Type values for the different wire protocols. -const ( - TextVersion = "0.0.4" - ProtoType = `application/vnd.google.protobuf` - ProtoProtocol = `io.prometheus.client.MetricFamily` - ProtoFmt = ProtoType + "; proto=" + ProtoProtocol + ";" - - // The Content-Type values for the different wire protocols. - FmtUnknown Format = `<unknown>` - FmtText Format = `text/plain; version=` + TextVersion + `; charset=utf-8` - FmtProtoDelim Format = ProtoFmt + ` encoding=delimited` - FmtProtoText Format = ProtoFmt + ` encoding=text` - FmtProtoCompact Format = ProtoFmt + ` encoding=compact-text` -) - -const ( - hdrContentType = "Content-Type" - hdrAccept = "Accept" -) diff --git a/vendor/github.com/prometheus/common/expfmt/fuzz.go b/vendor/github.com/prometheus/common/expfmt/fuzz.go deleted file mode 100644 index dc2eede..0000000 --- a/vendor/github.com/prometheus/common/expfmt/fuzz.go +++ /dev/null @@ -1,36 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Build only when actually fuzzing -// +build gofuzz - -package expfmt - -import "bytes" - -// Fuzz text metric parser with with github.com/dvyukov/go-fuzz: -// -// go-fuzz-build github.com/prometheus/common/expfmt -// go-fuzz -bin expfmt-fuzz.zip -workdir fuzz -// -// Further input samples should go in the folder fuzz/corpus. -func Fuzz(in []byte) int { - parser := TextParser{} - _, err := parser.TextToMetricFamilies(bytes.NewReader(in)) - - if err != nil { - return 0 - } - - return 1 -} diff --git a/vendor/github.com/prometheus/common/expfmt/text_create.go b/vendor/github.com/prometheus/common/expfmt/text_create.go deleted file mode 100644 index f11321c..0000000 --- a/vendor/github.com/prometheus/common/expfmt/text_create.go +++ /dev/null @@ -1,303 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package expfmt - -import ( - "fmt" - "io" - "math" - "strings" - - dto "github.com/prometheus/client_model/go" - "github.com/prometheus/common/model" -) - -// MetricFamilyToText converts a MetricFamily proto message into text format and -// writes the resulting lines to 'out'. It returns the number of bytes written -// and any error encountered. The output will have the same order as the input, -// no further sorting is performed. Furthermore, this function assumes the input -// is already sanitized and does not perform any sanity checks. If the input -// contains duplicate metrics or invalid metric or label names, the conversion -// will result in invalid text format output. -// -// This method fulfills the type 'prometheus.encoder'. -func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) { - var written int - - // Fail-fast checks. - if len(in.Metric) == 0 { - return written, fmt.Errorf("MetricFamily has no metrics: %s", in) - } - name := in.GetName() - if name == "" { - return written, fmt.Errorf("MetricFamily has no name: %s", in) - } - - // Comments, first HELP, then TYPE. - if in.Help != nil { - n, err := fmt.Fprintf( - out, "# HELP %s %s\n", - name, escapeString(*in.Help, false), - ) - written += n - if err != nil { - return written, err - } - } - metricType := in.GetType() - n, err := fmt.Fprintf( - out, "# TYPE %s %s\n", - name, strings.ToLower(metricType.String()), - ) - written += n - if err != nil { - return written, err - } - - // Finally the samples, one line for each. - for _, metric := range in.Metric { - switch metricType { - case dto.MetricType_COUNTER: - if metric.Counter == nil { - return written, fmt.Errorf( - "expected counter in metric %s %s", name, metric, - ) - } - n, err = writeSample( - name, metric, "", "", - metric.Counter.GetValue(), - out, - ) - case dto.MetricType_GAUGE: - if metric.Gauge == nil { - return written, fmt.Errorf( - "expected gauge in metric %s %s", name, metric, - ) - } - n, err = writeSample( - name, metric, "", "", - metric.Gauge.GetValue(), - out, - ) - case dto.MetricType_UNTYPED: - if metric.Untyped == nil { - return written, fmt.Errorf( - "expected untyped in metric %s %s", name, metric, - ) - } - n, err = writeSample( - name, metric, "", "", - metric.Untyped.GetValue(), - out, - ) - case dto.MetricType_SUMMARY: - if metric.Summary == nil { - return written, fmt.Errorf( - "expected summary in metric %s %s", name, metric, - ) - } - for _, q := range metric.Summary.Quantile { - n, err = writeSample( - name, metric, - model.QuantileLabel, fmt.Sprint(q.GetQuantile()), - q.GetValue(), - out, - ) - written += n - if err != nil { - return written, err - } - } - n, err = writeSample( - name+"_sum", metric, "", "", - metric.Summary.GetSampleSum(), - out, - ) - if err != nil { - return written, err - } - written += n - n, err = writeSample( - name+"_count", metric, "", "", - float64(metric.Summary.GetSampleCount()), - out, - ) - case dto.MetricType_HISTOGRAM: - if metric.Histogram == nil { - return written, fmt.Errorf( - "expected histogram in metric %s %s", name, metric, - ) - } - infSeen := false - for _, q := range metric.Histogram.Bucket { - n, err = writeSample( - name+"_bucket", metric, - model.BucketLabel, fmt.Sprint(q.GetUpperBound()), - float64(q.GetCumulativeCount()), - out, - ) - written += n - if err != nil { - return written, err - } - if math.IsInf(q.GetUpperBound(), +1) { - infSeen = true - } - } - if !infSeen { - n, err = writeSample( - name+"_bucket", metric, - model.BucketLabel, "+Inf", - float64(metric.Histogram.GetSampleCount()), - out, - ) - if err != nil { - return written, err - } - written += n - } - n, err = writeSample( - name+"_sum", metric, "", "", - metric.Histogram.GetSampleSum(), - out, - ) - if err != nil { - return written, err - } - written += n - n, err = writeSample( - name+"_count", metric, "", "", - float64(metric.Histogram.GetSampleCount()), - out, - ) - default: - return written, fmt.Errorf( - "unexpected type in metric %s %s", name, metric, - ) - } - written += n - if err != nil { - return written, err - } - } - return written, nil -} - -// writeSample writes a single sample in text format to out, given the metric -// name, the metric proto message itself, optionally an additional label name -// and value (use empty strings if not required), and the value. The function -// returns the number of bytes written and any error encountered. -func writeSample( - name string, - metric *dto.Metric, - additionalLabelName, additionalLabelValue string, - value float64, - out io.Writer, -) (int, error) { - var written int - n, err := fmt.Fprint(out, name) - written += n - if err != nil { - return written, err - } - n, err = labelPairsToText( - metric.Label, - additionalLabelName, additionalLabelValue, - out, - ) - written += n - if err != nil { - return written, err - } - n, err = fmt.Fprintf(out, " %v", value) - written += n - if err != nil { - return written, err - } - if metric.TimestampMs != nil { - n, err = fmt.Fprintf(out, " %v", *metric.TimestampMs) - written += n - if err != nil { - return written, err - } - } - n, err = out.Write([]byte{'\n'}) - written += n - if err != nil { - return written, err - } - return written, nil -} - -// labelPairsToText converts a slice of LabelPair proto messages plus the -// explicitly given additional label pair into text formatted as required by the -// text format and writes it to 'out'. An empty slice in combination with an -// empty string 'additionalLabelName' results in nothing being -// written. Otherwise, the label pairs are written, escaped as required by the -// text format, and enclosed in '{...}'. The function returns the number of -// bytes written and any error encountered. -func labelPairsToText( - in []*dto.LabelPair, - additionalLabelName, additionalLabelValue string, - out io.Writer, -) (int, error) { - if len(in) == 0 && additionalLabelName == "" { - return 0, nil - } - var written int - separator := '{' - for _, lp := range in { - n, err := fmt.Fprintf( - out, `%c%s="%s"`, - separator, lp.GetName(), escapeString(lp.GetValue(), true), - ) - written += n - if err != nil { - return written, err - } - separator = ',' - } - if additionalLabelName != "" { - n, err := fmt.Fprintf( - out, `%c%s="%s"`, - separator, additionalLabelName, - escapeString(additionalLabelValue, true), - ) - written += n - if err != nil { - return written, err - } - } - n, err := out.Write([]byte{'}'}) - written += n - if err != nil { - return written, err - } - return written, nil -} - -var ( - escape = strings.NewReplacer("\\", `\\`, "\n", `\n`) - escapeWithDoubleQuote = strings.NewReplacer("\\", `\\`, "\n", `\n`, "\"", `\"`) -) - -// escapeString replaces '\' by '\\', new line character by '\n', and - if -// includeDoubleQuote is true - '"' by '\"'. -func escapeString(v string, includeDoubleQuote bool) string { - if includeDoubleQuote { - return escapeWithDoubleQuote.Replace(v) - } - - return escape.Replace(v) -} diff --git a/vendor/github.com/prometheus/common/expfmt/text_parse.go b/vendor/github.com/prometheus/common/expfmt/text_parse.go deleted file mode 100644 index ec3d86b..0000000 --- a/vendor/github.com/prometheus/common/expfmt/text_parse.go +++ /dev/null @@ -1,757 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package expfmt - -import ( - "bufio" - "bytes" - "fmt" - "io" - "math" - "strconv" - "strings" - - dto "github.com/prometheus/client_model/go" - - "github.com/golang/protobuf/proto" - "github.com/prometheus/common/model" -) - -// A stateFn is a function that represents a state in a state machine. By -// executing it, the state is progressed to the next state. The stateFn returns -// another stateFn, which represents the new state. The end state is represented -// by nil. -type stateFn func() stateFn - -// ParseError signals errors while parsing the simple and flat text-based -// exchange format. -type ParseError struct { - Line int - Msg string -} - -// Error implements the error interface. -func (e ParseError) Error() string { - return fmt.Sprintf("text format parsing error in line %d: %s", e.Line, e.Msg) -} - -// TextParser is used to parse the simple and flat text-based exchange format. Its -// zero value is ready to use. -type TextParser struct { - metricFamiliesByName map[string]*dto.MetricFamily - buf *bufio.Reader // Where the parsed input is read through. - err error // Most recent error. - lineCount int // Tracks the line count for error messages. - currentByte byte // The most recent byte read. - currentToken bytes.Buffer // Re-used each time a token has to be gathered from multiple bytes. - currentMF *dto.MetricFamily - currentMetric *dto.Metric - currentLabelPair *dto.LabelPair - - // The remaining member variables are only used for summaries/histograms. - currentLabels map[string]string // All labels including '__name__' but excluding 'quantile'/'le' - // Summary specific. - summaries map[uint64]*dto.Metric // Key is created with LabelsToSignature. - currentQuantile float64 - // Histogram specific. - histograms map[uint64]*dto.Metric // Key is created with LabelsToSignature. - currentBucket float64 - // These tell us if the currently processed line ends on '_count' or - // '_sum' respectively and belong to a summary/histogram, representing the sample - // count and sum of that summary/histogram. - currentIsSummaryCount, currentIsSummarySum bool - currentIsHistogramCount, currentIsHistogramSum bool -} - -// TextToMetricFamilies reads 'in' as the simple and flat text-based exchange -// format and creates MetricFamily proto messages. It returns the MetricFamily -// proto messages in a map where the metric names are the keys, along with any -// error encountered. -// -// If the input contains duplicate metrics (i.e. lines with the same metric name -// and exactly the same label set), the resulting MetricFamily will contain -// duplicate Metric proto messages. Similar is true for duplicate label -// names. Checks for duplicates have to be performed separately, if required. -// Also note that neither the metrics within each MetricFamily are sorted nor -// the label pairs within each Metric. Sorting is not required for the most -// frequent use of this method, which is sample ingestion in the Prometheus -// server. However, for presentation purposes, you might want to sort the -// metrics, and in some cases, you must sort the labels, e.g. for consumption by -// the metric family injection hook of the Prometheus registry. -// -// Summaries and histograms are rather special beasts. You would probably not -// use them in the simple text format anyway. This method can deal with -// summaries and histograms if they are presented in exactly the way the -// text.Create function creates them. -// -// This method must not be called concurrently. If you want to parse different -// input concurrently, instantiate a separate Parser for each goroutine. -func (p *TextParser) TextToMetricFamilies(in io.Reader) (map[string]*dto.MetricFamily, error) { - p.reset(in) - for nextState := p.startOfLine; nextState != nil; nextState = nextState() { - // Magic happens here... - } - // Get rid of empty metric families. - for k, mf := range p.metricFamiliesByName { - if len(mf.GetMetric()) == 0 { - delete(p.metricFamiliesByName, k) - } - } - // If p.err is io.EOF now, we have run into a premature end of the input - // stream. Turn this error into something nicer and more - // meaningful. (io.EOF is often used as a signal for the legitimate end - // of an input stream.) - if p.err == io.EOF { - p.parseError("unexpected end of input stream") - } - return p.metricFamiliesByName, p.err -} - -func (p *TextParser) reset(in io.Reader) { - p.metricFamiliesByName = map[string]*dto.MetricFamily{} - if p.buf == nil { - p.buf = bufio.NewReader(in) - } else { - p.buf.Reset(in) - } - p.err = nil - p.lineCount = 0 - if p.summaries == nil || len(p.summaries) > 0 { - p.summaries = map[uint64]*dto.Metric{} - } - if p.histograms == nil || len(p.histograms) > 0 { - p.histograms = map[uint64]*dto.Metric{} - } - p.currentQuantile = math.NaN() - p.currentBucket = math.NaN() -} - -// startOfLine represents the state where the next byte read from p.buf is the -// start of a line (or whitespace leading up to it). -func (p *TextParser) startOfLine() stateFn { - p.lineCount++ - if p.skipBlankTab(); p.err != nil { - // End of input reached. This is the only case where - // that is not an error but a signal that we are done. - p.err = nil - return nil - } - switch p.currentByte { - case '#': - return p.startComment - case '\n': - return p.startOfLine // Empty line, start the next one. - } - return p.readingMetricName -} - -// startComment represents the state where the next byte read from p.buf is the -// start of a comment (or whitespace leading up to it). -func (p *TextParser) startComment() stateFn { - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentByte == '\n' { - return p.startOfLine - } - if p.readTokenUntilWhitespace(); p.err != nil { - return nil // Unexpected end of input. - } - // If we have hit the end of line already, there is nothing left - // to do. This is not considered a syntax error. - if p.currentByte == '\n' { - return p.startOfLine - } - keyword := p.currentToken.String() - if keyword != "HELP" && keyword != "TYPE" { - // Generic comment, ignore by fast forwarding to end of line. - for p.currentByte != '\n' { - if p.currentByte, p.err = p.buf.ReadByte(); p.err != nil { - return nil // Unexpected end of input. - } - } - return p.startOfLine - } - // There is something. Next has to be a metric name. - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.readTokenAsMetricName(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentByte == '\n' { - // At the end of the line already. - // Again, this is not considered a syntax error. - return p.startOfLine - } - if !isBlankOrTab(p.currentByte) { - p.parseError("invalid metric name in comment") - return nil - } - p.setOrCreateCurrentMF() - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentByte == '\n' { - // At the end of the line already. - // Again, this is not considered a syntax error. - return p.startOfLine - } - switch keyword { - case "HELP": - return p.readingHelp - case "TYPE": - return p.readingType - } - panic(fmt.Sprintf("code error: unexpected keyword %q", keyword)) -} - -// readingMetricName represents the state where the last byte read (now in -// p.currentByte) is the first byte of a metric name. -func (p *TextParser) readingMetricName() stateFn { - if p.readTokenAsMetricName(); p.err != nil { - return nil - } - if p.currentToken.Len() == 0 { - p.parseError("invalid metric name") - return nil - } - p.setOrCreateCurrentMF() - // Now is the time to fix the type if it hasn't happened yet. - if p.currentMF.Type == nil { - p.currentMF.Type = dto.MetricType_UNTYPED.Enum() - } - p.currentMetric = &dto.Metric{} - // Do not append the newly created currentMetric to - // currentMF.Metric right now. First wait if this is a summary, - // and the metric exists already, which we can only know after - // having read all the labels. - if p.skipBlankTabIfCurrentBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - return p.readingLabels -} - -// readingLabels represents the state where the last byte read (now in -// p.currentByte) is either the first byte of the label set (i.e. a '{'), or the -// first byte of the value (otherwise). -func (p *TextParser) readingLabels() stateFn { - // Summaries/histograms are special. We have to reset the - // currentLabels map, currentQuantile and currentBucket before starting to - // read labels. - if p.currentMF.GetType() == dto.MetricType_SUMMARY || p.currentMF.GetType() == dto.MetricType_HISTOGRAM { - p.currentLabels = map[string]string{} - p.currentLabels[string(model.MetricNameLabel)] = p.currentMF.GetName() - p.currentQuantile = math.NaN() - p.currentBucket = math.NaN() - } - if p.currentByte != '{' { - return p.readingValue - } - return p.startLabelName -} - -// startLabelName represents the state where the next byte read from p.buf is -// the start of a label name (or whitespace leading up to it). -func (p *TextParser) startLabelName() stateFn { - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentByte == '}' { - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - return p.readingValue - } - if p.readTokenAsLabelName(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentToken.Len() == 0 { - p.parseError(fmt.Sprintf("invalid label name for metric %q", p.currentMF.GetName())) - return nil - } - p.currentLabelPair = &dto.LabelPair{Name: proto.String(p.currentToken.String())} - if p.currentLabelPair.GetName() == string(model.MetricNameLabel) { - p.parseError(fmt.Sprintf("label name %q is reserved", model.MetricNameLabel)) - return nil - } - // Special summary/histogram treatment. Don't add 'quantile' and 'le' - // labels to 'real' labels. - if !(p.currentMF.GetType() == dto.MetricType_SUMMARY && p.currentLabelPair.GetName() == model.QuantileLabel) && - !(p.currentMF.GetType() == dto.MetricType_HISTOGRAM && p.currentLabelPair.GetName() == model.BucketLabel) { - p.currentMetric.Label = append(p.currentMetric.Label, p.currentLabelPair) - } - if p.skipBlankTabIfCurrentBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentByte != '=' { - p.parseError(fmt.Sprintf("expected '=' after label name, found %q", p.currentByte)) - return nil - } - return p.startLabelValue -} - -// startLabelValue represents the state where the next byte read from p.buf is -// the start of a (quoted) label value (or whitespace leading up to it). -func (p *TextParser) startLabelValue() stateFn { - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentByte != '"' { - p.parseError(fmt.Sprintf("expected '\"' at start of label value, found %q", p.currentByte)) - return nil - } - if p.readTokenAsLabelValue(); p.err != nil { - return nil - } - if !model.LabelValue(p.currentToken.String()).IsValid() { - p.parseError(fmt.Sprintf("invalid label value %q", p.currentToken.String())) - return nil - } - p.currentLabelPair.Value = proto.String(p.currentToken.String()) - // Special treatment of summaries: - // - Quantile labels are special, will result in dto.Quantile later. - // - Other labels have to be added to currentLabels for signature calculation. - if p.currentMF.GetType() == dto.MetricType_SUMMARY { - if p.currentLabelPair.GetName() == model.QuantileLabel { - if p.currentQuantile, p.err = strconv.ParseFloat(p.currentLabelPair.GetValue(), 64); p.err != nil { - // Create a more helpful error message. - p.parseError(fmt.Sprintf("expected float as value for 'quantile' label, got %q", p.currentLabelPair.GetValue())) - return nil - } - } else { - p.currentLabels[p.currentLabelPair.GetName()] = p.currentLabelPair.GetValue() - } - } - // Similar special treatment of histograms. - if p.currentMF.GetType() == dto.MetricType_HISTOGRAM { - if p.currentLabelPair.GetName() == model.BucketLabel { - if p.currentBucket, p.err = strconv.ParseFloat(p.currentLabelPair.GetValue(), 64); p.err != nil { - // Create a more helpful error message. - p.parseError(fmt.Sprintf("expected float as value for 'le' label, got %q", p.currentLabelPair.GetValue())) - return nil - } - } else { - p.currentLabels[p.currentLabelPair.GetName()] = p.currentLabelPair.GetValue() - } - } - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - switch p.currentByte { - case ',': - return p.startLabelName - - case '}': - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - return p.readingValue - default: - p.parseError(fmt.Sprintf("unexpected end of label value %q", p.currentLabelPair.GetValue())) - return nil - } -} - -// readingValue represents the state where the last byte read (now in -// p.currentByte) is the first byte of the sample value (i.e. a float). -func (p *TextParser) readingValue() stateFn { - // When we are here, we have read all the labels, so for the - // special case of a summary/histogram, we can finally find out - // if the metric already exists. - if p.currentMF.GetType() == dto.MetricType_SUMMARY { - signature := model.LabelsToSignature(p.currentLabels) - if summary := p.summaries[signature]; summary != nil { - p.currentMetric = summary - } else { - p.summaries[signature] = p.currentMetric - p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric) - } - } else if p.currentMF.GetType() == dto.MetricType_HISTOGRAM { - signature := model.LabelsToSignature(p.currentLabels) - if histogram := p.histograms[signature]; histogram != nil { - p.currentMetric = histogram - } else { - p.histograms[signature] = p.currentMetric - p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric) - } - } else { - p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric) - } - if p.readTokenUntilWhitespace(); p.err != nil { - return nil // Unexpected end of input. - } - value, err := strconv.ParseFloat(p.currentToken.String(), 64) - if err != nil { - // Create a more helpful error message. - p.parseError(fmt.Sprintf("expected float as value, got %q", p.currentToken.String())) - return nil - } - switch p.currentMF.GetType() { - case dto.MetricType_COUNTER: - p.currentMetric.Counter = &dto.Counter{Value: proto.Float64(value)} - case dto.MetricType_GAUGE: - p.currentMetric.Gauge = &dto.Gauge{Value: proto.Float64(value)} - case dto.MetricType_UNTYPED: - p.currentMetric.Untyped = &dto.Untyped{Value: proto.Float64(value)} - case dto.MetricType_SUMMARY: - // *sigh* - if p.currentMetric.Summary == nil { - p.currentMetric.Summary = &dto.Summary{} - } - switch { - case p.currentIsSummaryCount: - p.currentMetric.Summary.SampleCount = proto.Uint64(uint64(value)) - case p.currentIsSummarySum: - p.currentMetric.Summary.SampleSum = proto.Float64(value) - case !math.IsNaN(p.currentQuantile): - p.currentMetric.Summary.Quantile = append( - p.currentMetric.Summary.Quantile, - &dto.Quantile{ - Quantile: proto.Float64(p.currentQuantile), - Value: proto.Float64(value), - }, - ) - } - case dto.MetricType_HISTOGRAM: - // *sigh* - if p.currentMetric.Histogram == nil { - p.currentMetric.Histogram = &dto.Histogram{} - } - switch { - case p.currentIsHistogramCount: - p.currentMetric.Histogram.SampleCount = proto.Uint64(uint64(value)) - case p.currentIsHistogramSum: - p.currentMetric.Histogram.SampleSum = proto.Float64(value) - case !math.IsNaN(p.currentBucket): - p.currentMetric.Histogram.Bucket = append( - p.currentMetric.Histogram.Bucket, - &dto.Bucket{ - UpperBound: proto.Float64(p.currentBucket), - CumulativeCount: proto.Uint64(uint64(value)), - }, - ) - } - default: - p.err = fmt.Errorf("unexpected type for metric name %q", p.currentMF.GetName()) - } - if p.currentByte == '\n' { - return p.startOfLine - } - return p.startTimestamp -} - -// startTimestamp represents the state where the next byte read from p.buf is -// the start of the timestamp (or whitespace leading up to it). -func (p *TextParser) startTimestamp() stateFn { - if p.skipBlankTab(); p.err != nil { - return nil // Unexpected end of input. - } - if p.readTokenUntilWhitespace(); p.err != nil { - return nil // Unexpected end of input. - } - timestamp, err := strconv.ParseInt(p.currentToken.String(), 10, 64) - if err != nil { - // Create a more helpful error message. - p.parseError(fmt.Sprintf("expected integer as timestamp, got %q", p.currentToken.String())) - return nil - } - p.currentMetric.TimestampMs = proto.Int64(timestamp) - if p.readTokenUntilNewline(false); p.err != nil { - return nil // Unexpected end of input. - } - if p.currentToken.Len() > 0 { - p.parseError(fmt.Sprintf("spurious string after timestamp: %q", p.currentToken.String())) - return nil - } - return p.startOfLine -} - -// readingHelp represents the state where the last byte read (now in -// p.currentByte) is the first byte of the docstring after 'HELP'. -func (p *TextParser) readingHelp() stateFn { - if p.currentMF.Help != nil { - p.parseError(fmt.Sprintf("second HELP line for metric name %q", p.currentMF.GetName())) - return nil - } - // Rest of line is the docstring. - if p.readTokenUntilNewline(true); p.err != nil { - return nil // Unexpected end of input. - } - p.currentMF.Help = proto.String(p.currentToken.String()) - return p.startOfLine -} - -// readingType represents the state where the last byte read (now in -// p.currentByte) is the first byte of the type hint after 'HELP'. -func (p *TextParser) readingType() stateFn { - if p.currentMF.Type != nil { - p.parseError(fmt.Sprintf("second TYPE line for metric name %q, or TYPE reported after samples", p.currentMF.GetName())) - return nil - } - // Rest of line is the type. - if p.readTokenUntilNewline(false); p.err != nil { - return nil // Unexpected end of input. - } - metricType, ok := dto.MetricType_value[strings.ToUpper(p.currentToken.String())] - if !ok { - p.parseError(fmt.Sprintf("unknown metric type %q", p.currentToken.String())) - return nil - } - p.currentMF.Type = dto.MetricType(metricType).Enum() - return p.startOfLine -} - -// parseError sets p.err to a ParseError at the current line with the given -// message. -func (p *TextParser) parseError(msg string) { - p.err = ParseError{ - Line: p.lineCount, - Msg: msg, - } -} - -// skipBlankTab reads (and discards) bytes from p.buf until it encounters a byte -// that is neither ' ' nor '\t'. That byte is left in p.currentByte. -func (p *TextParser) skipBlankTab() { - for { - if p.currentByte, p.err = p.buf.ReadByte(); p.err != nil || !isBlankOrTab(p.currentByte) { - return - } - } -} - -// skipBlankTabIfCurrentBlankTab works exactly as skipBlankTab but doesn't do -// anything if p.currentByte is neither ' ' nor '\t'. -func (p *TextParser) skipBlankTabIfCurrentBlankTab() { - if isBlankOrTab(p.currentByte) { - p.skipBlankTab() - } -} - -// readTokenUntilWhitespace copies bytes from p.buf into p.currentToken. The -// first byte considered is the byte already read (now in p.currentByte). The -// first whitespace byte encountered is still copied into p.currentByte, but not -// into p.currentToken. -func (p *TextParser) readTokenUntilWhitespace() { - p.currentToken.Reset() - for p.err == nil && !isBlankOrTab(p.currentByte) && p.currentByte != '\n' { - p.currentToken.WriteByte(p.currentByte) - p.currentByte, p.err = p.buf.ReadByte() - } -} - -// readTokenUntilNewline copies bytes from p.buf into p.currentToken. The first -// byte considered is the byte already read (now in p.currentByte). The first -// newline byte encountered is still copied into p.currentByte, but not into -// p.currentToken. If recognizeEscapeSequence is true, two escape sequences are -// recognized: '\\' translates into '\', and '\n' into a line-feed character. -// All other escape sequences are invalid and cause an error. -func (p *TextParser) readTokenUntilNewline(recognizeEscapeSequence bool) { - p.currentToken.Reset() - escaped := false - for p.err == nil { - if recognizeEscapeSequence && escaped { - switch p.currentByte { - case '\\': - p.currentToken.WriteByte(p.currentByte) - case 'n': - p.currentToken.WriteByte('\n') - default: - p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte)) - return - } - escaped = false - } else { - switch p.currentByte { - case '\n': - return - case '\\': - escaped = true - default: - p.currentToken.WriteByte(p.currentByte) - } - } - p.currentByte, p.err = p.buf.ReadByte() - } -} - -// readTokenAsMetricName copies a metric name from p.buf into p.currentToken. -// The first byte considered is the byte already read (now in p.currentByte). -// The first byte not part of a metric name is still copied into p.currentByte, -// but not into p.currentToken. -func (p *TextParser) readTokenAsMetricName() { - p.currentToken.Reset() - if !isValidMetricNameStart(p.currentByte) { - return - } - for { - p.currentToken.WriteByte(p.currentByte) - p.currentByte, p.err = p.buf.ReadByte() - if p.err != nil || !isValidMetricNameContinuation(p.currentByte) { - return - } - } -} - -// readTokenAsLabelName copies a label name from p.buf into p.currentToken. -// The first byte considered is the byte already read (now in p.currentByte). -// The first byte not part of a label name is still copied into p.currentByte, -// but not into p.currentToken. -func (p *TextParser) readTokenAsLabelName() { - p.currentToken.Reset() - if !isValidLabelNameStart(p.currentByte) { - return - } - for { - p.currentToken.WriteByte(p.currentByte) - p.currentByte, p.err = p.buf.ReadByte() - if p.err != nil || !isValidLabelNameContinuation(p.currentByte) { - return - } - } -} - -// readTokenAsLabelValue copies a label value from p.buf into p.currentToken. -// In contrast to the other 'readTokenAs...' functions, which start with the -// last read byte in p.currentByte, this method ignores p.currentByte and starts -// with reading a new byte from p.buf. The first byte not part of a label value -// is still copied into p.currentByte, but not into p.currentToken. -func (p *TextParser) readTokenAsLabelValue() { - p.currentToken.Reset() - escaped := false - for { - if p.currentByte, p.err = p.buf.ReadByte(); p.err != nil { - return - } - if escaped { - switch p.currentByte { - case '"', '\\': - p.currentToken.WriteByte(p.currentByte) - case 'n': - p.currentToken.WriteByte('\n') - default: - p.parseError(fmt.Sprintf("invalid escape sequence '\\%c'", p.currentByte)) - return - } - escaped = false - continue - } - switch p.currentByte { - case '"': - return - case '\n': - p.parseError(fmt.Sprintf("label value %q contains unescaped new-line", p.currentToken.String())) - return - case '\\': - escaped = true - default: - p.currentToken.WriteByte(p.currentByte) - } - } -} - -func (p *TextParser) setOrCreateCurrentMF() { - p.currentIsSummaryCount = false - p.currentIsSummarySum = false - p.currentIsHistogramCount = false - p.currentIsHistogramSum = false - name := p.currentToken.String() - if p.currentMF = p.metricFamiliesByName[name]; p.currentMF != nil { - return - } - // Try out if this is a _sum or _count for a summary/histogram. - summaryName := summaryMetricName(name) - if p.currentMF = p.metricFamiliesByName[summaryName]; p.currentMF != nil { - if p.currentMF.GetType() == dto.MetricType_SUMMARY { - if isCount(name) { - p.currentIsSummaryCount = true - } - if isSum(name) { - p.currentIsSummarySum = true - } - return - } - } - histogramName := histogramMetricName(name) - if p.currentMF = p.metricFamiliesByName[histogramName]; p.currentMF != nil { - if p.currentMF.GetType() == dto.MetricType_HISTOGRAM { - if isCount(name) { - p.currentIsHistogramCount = true - } - if isSum(name) { - p.currentIsHistogramSum = true - } - return - } - } - p.currentMF = &dto.MetricFamily{Name: proto.String(name)} - p.metricFamiliesByName[name] = p.currentMF -} - -func isValidLabelNameStart(b byte) bool { - return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' -} - -func isValidLabelNameContinuation(b byte) bool { - return isValidLabelNameStart(b) || (b >= '0' && b <= '9') -} - -func isValidMetricNameStart(b byte) bool { - return isValidLabelNameStart(b) || b == ':' -} - -func isValidMetricNameContinuation(b byte) bool { - return isValidLabelNameContinuation(b) || b == ':' -} - -func isBlankOrTab(b byte) bool { - return b == ' ' || b == '\t' -} - -func isCount(name string) bool { - return len(name) > 6 && name[len(name)-6:] == "_count" -} - -func isSum(name string) bool { - return len(name) > 4 && name[len(name)-4:] == "_sum" -} - -func isBucket(name string) bool { - return len(name) > 7 && name[len(name)-7:] == "_bucket" -} - -func summaryMetricName(name string) string { - switch { - case isCount(name): - return name[:len(name)-6] - case isSum(name): - return name[:len(name)-4] - default: - return name - } -} - -func histogramMetricName(name string) string { - switch { - case isCount(name): - return name[:len(name)-6] - case isSum(name): - return name[:len(name)-4] - case isBucket(name): - return name[:len(name)-7] - default: - return name - } -} diff --git a/vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/README.txt b/vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/README.txt deleted file mode 100644 index 7723656..0000000 --- a/vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/README.txt +++ /dev/null @@ -1,67 +0,0 @@ -PACKAGE - -package goautoneg -import "bitbucket.org/ww/goautoneg" - -HTTP Content-Type Autonegotiation. - -The functions in this package implement the behaviour specified in -http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html - -Copyright (c) 2011, Open Knowledge Foundation Ltd. -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - - Neither the name of the Open Knowledge Foundation Ltd. nor the - names of its contributors may be used to endorse or promote - products derived from this software without specific prior written - permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - -FUNCTIONS - -func Negotiate(header string, alternatives []string) (content_type string) -Negotiate the most appropriate content_type given the accept header -and a list of alternatives. - -func ParseAccept(header string) (accept []Accept) -Parse an Accept Header string returning a sorted list -of clauses - - -TYPES - -type Accept struct { - Type, SubType string - Q float32 - Params map[string]string -} -Structure to represent a clause in an HTTP Accept Header - - -SUBDIRECTORIES - - .hg diff --git a/vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/autoneg.go b/vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/autoneg.go deleted file mode 100644 index 648b38c..0000000 --- a/vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/autoneg.go +++ /dev/null @@ -1,162 +0,0 @@ -/* -HTTP Content-Type Autonegotiation. - -The functions in this package implement the behaviour specified in -http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html - -Copyright (c) 2011, Open Knowledge Foundation Ltd. -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - - Neither the name of the Open Knowledge Foundation Ltd. nor the - names of its contributors may be used to endorse or promote - products derived from this software without specific prior written - permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - -*/ -package goautoneg - -import ( - "sort" - "strconv" - "strings" -) - -// Structure to represent a clause in an HTTP Accept Header -type Accept struct { - Type, SubType string - Q float64 - Params map[string]string -} - -// For internal use, so that we can use the sort interface -type accept_slice []Accept - -func (accept accept_slice) Len() int { - slice := []Accept(accept) - return len(slice) -} - -func (accept accept_slice) Less(i, j int) bool { - slice := []Accept(accept) - ai, aj := slice[i], slice[j] - if ai.Q > aj.Q { - return true - } - if ai.Type != "*" && aj.Type == "*" { - return true - } - if ai.SubType != "*" && aj.SubType == "*" { - return true - } - return false -} - -func (accept accept_slice) Swap(i, j int) { - slice := []Accept(accept) - slice[i], slice[j] = slice[j], slice[i] -} - -// Parse an Accept Header string returning a sorted list -// of clauses -func ParseAccept(header string) (accept []Accept) { - parts := strings.Split(header, ",") - accept = make([]Accept, 0, len(parts)) - for _, part := range parts { - part := strings.Trim(part, " ") - - a := Accept{} - a.Params = make(map[string]string) - a.Q = 1.0 - - mrp := strings.Split(part, ";") - - media_range := mrp[0] - sp := strings.Split(media_range, "/") - a.Type = strings.Trim(sp[0], " ") - - switch { - case len(sp) == 1 && a.Type == "*": - a.SubType = "*" - case len(sp) == 2: - a.SubType = strings.Trim(sp[1], " ") - default: - continue - } - - if len(mrp) == 1 { - accept = append(accept, a) - continue - } - - for _, param := range mrp[1:] { - sp := strings.SplitN(param, "=", 2) - if len(sp) != 2 { - continue - } - token := strings.Trim(sp[0], " ") - if token == "q" { - a.Q, _ = strconv.ParseFloat(sp[1], 32) - } else { - a.Params[token] = strings.Trim(sp[1], " ") - } - } - - accept = append(accept, a) - } - - slice := accept_slice(accept) - sort.Sort(slice) - - return -} - -// Negotiate the most appropriate content_type given the accept header -// and a list of alternatives. -func Negotiate(header string, alternatives []string) (content_type string) { - asp := make([][]string, 0, len(alternatives)) - for _, ctype := range alternatives { - asp = append(asp, strings.SplitN(ctype, "/", 2)) - } - for _, clause := range ParseAccept(header) { - for i, ctsp := range asp { - if clause.Type == ctsp[0] && clause.SubType == ctsp[1] { - content_type = alternatives[i] - return - } - if clause.Type == ctsp[0] && clause.SubType == "*" { - content_type = alternatives[i] - return - } - if clause.Type == "*" && clause.SubType == "*" { - content_type = alternatives[i] - return - } - } - } - return -} diff --git a/vendor/github.com/prometheus/common/model/alert.go b/vendor/github.com/prometheus/common/model/alert.go deleted file mode 100644 index 35e739c..0000000 --- a/vendor/github.com/prometheus/common/model/alert.go +++ /dev/null @@ -1,136 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "fmt" - "time" -) - -type AlertStatus string - -const ( - AlertFiring AlertStatus = "firing" - AlertResolved AlertStatus = "resolved" -) - -// Alert is a generic representation of an alert in the Prometheus eco-system. -type Alert struct { - // Label value pairs for purpose of aggregation, matching, and disposition - // dispatching. This must minimally include an "alertname" label. - Labels LabelSet `json:"labels"` - - // Extra key/value information which does not define alert identity. - Annotations LabelSet `json:"annotations"` - - // The known time range for this alert. Both ends are optional. - StartsAt time.Time `json:"startsAt,omitempty"` - EndsAt time.Time `json:"endsAt,omitempty"` - GeneratorURL string `json:"generatorURL"` -} - -// Name returns the name of the alert. It is equivalent to the "alertname" label. -func (a *Alert) Name() string { - return string(a.Labels[AlertNameLabel]) -} - -// Fingerprint returns a unique hash for the alert. It is equivalent to -// the fingerprint of the alert's label set. -func (a *Alert) Fingerprint() Fingerprint { - return a.Labels.Fingerprint() -} - -func (a *Alert) String() string { - s := fmt.Sprintf("%s[%s]", a.Name(), a.Fingerprint().String()[:7]) - if a.Resolved() { - return s + "[resolved]" - } - return s + "[active]" -} - -// Resolved returns true iff the activity interval ended in the past. -func (a *Alert) Resolved() bool { - return a.ResolvedAt(time.Now()) -} - -// ResolvedAt returns true off the activity interval ended before -// the given timestamp. -func (a *Alert) ResolvedAt(ts time.Time) bool { - if a.EndsAt.IsZero() { - return false - } - return !a.EndsAt.After(ts) -} - -// Status returns the status of the alert. -func (a *Alert) Status() AlertStatus { - if a.Resolved() { - return AlertResolved - } - return AlertFiring -} - -// Validate checks whether the alert data is inconsistent. -func (a *Alert) Validate() error { - if a.StartsAt.IsZero() { - return fmt.Errorf("start time missing") - } - if !a.EndsAt.IsZero() && a.EndsAt.Before(a.StartsAt) { - return fmt.Errorf("start time must be before end time") - } - if err := a.Labels.Validate(); err != nil { - return fmt.Errorf("invalid label set: %s", err) - } - if len(a.Labels) == 0 { - return fmt.Errorf("at least one label pair required") - } - if err := a.Annotations.Validate(); err != nil { - return fmt.Errorf("invalid annotations: %s", err) - } - return nil -} - -// Alert is a list of alerts that can be sorted in chronological order. -type Alerts []*Alert - -func (as Alerts) Len() int { return len(as) } -func (as Alerts) Swap(i, j int) { as[i], as[j] = as[j], as[i] } - -func (as Alerts) Less(i, j int) bool { - if as[i].StartsAt.Before(as[j].StartsAt) { - return true - } - if as[i].EndsAt.Before(as[j].EndsAt) { - return true - } - return as[i].Fingerprint() < as[j].Fingerprint() -} - -// HasFiring returns true iff one of the alerts is not resolved. -func (as Alerts) HasFiring() bool { - for _, a := range as { - if !a.Resolved() { - return true - } - } - return false -} - -// Status returns StatusFiring iff at least one of the alerts is firing. -func (as Alerts) Status() AlertStatus { - if as.HasFiring() { - return AlertFiring - } - return AlertResolved -} diff --git a/vendor/github.com/prometheus/common/model/fingerprinting.go b/vendor/github.com/prometheus/common/model/fingerprinting.go deleted file mode 100644 index fc4de41..0000000 --- a/vendor/github.com/prometheus/common/model/fingerprinting.go +++ /dev/null @@ -1,105 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "fmt" - "strconv" -) - -// Fingerprint provides a hash-capable representation of a Metric. -// For our purposes, FNV-1A 64-bit is used. -type Fingerprint uint64 - -// FingerprintFromString transforms a string representation into a Fingerprint. -func FingerprintFromString(s string) (Fingerprint, error) { - num, err := strconv.ParseUint(s, 16, 64) - return Fingerprint(num), err -} - -// ParseFingerprint parses the input string into a fingerprint. -func ParseFingerprint(s string) (Fingerprint, error) { - num, err := strconv.ParseUint(s, 16, 64) - if err != nil { - return 0, err - } - return Fingerprint(num), nil -} - -func (f Fingerprint) String() string { - return fmt.Sprintf("%016x", uint64(f)) -} - -// Fingerprints represents a collection of Fingerprint subject to a given -// natural sorting scheme. It implements sort.Interface. -type Fingerprints []Fingerprint - -// Len implements sort.Interface. -func (f Fingerprints) Len() int { - return len(f) -} - -// Less implements sort.Interface. -func (f Fingerprints) Less(i, j int) bool { - return f[i] < f[j] -} - -// Swap implements sort.Interface. -func (f Fingerprints) Swap(i, j int) { - f[i], f[j] = f[j], f[i] -} - -// FingerprintSet is a set of Fingerprints. -type FingerprintSet map[Fingerprint]struct{} - -// Equal returns true if both sets contain the same elements (and not more). -func (s FingerprintSet) Equal(o FingerprintSet) bool { - if len(s) != len(o) { - return false - } - - for k := range s { - if _, ok := o[k]; !ok { - return false - } - } - - return true -} - -// Intersection returns the elements contained in both sets. -func (s FingerprintSet) Intersection(o FingerprintSet) FingerprintSet { - myLength, otherLength := len(s), len(o) - if myLength == 0 || otherLength == 0 { - return FingerprintSet{} - } - - subSet := s - superSet := o - - if otherLength < myLength { - subSet = o - superSet = s - } - - out := FingerprintSet{} - - for k := range subSet { - if _, ok := superSet[k]; ok { - out[k] = struct{}{} - } - } - - return out -} diff --git a/vendor/github.com/prometheus/common/model/fnv.go b/vendor/github.com/prometheus/common/model/fnv.go deleted file mode 100644 index 038fc1c..0000000 --- a/vendor/github.com/prometheus/common/model/fnv.go +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -// Inline and byte-free variant of hash/fnv's fnv64a. - -const ( - offset64 = 14695981039346656037 - prime64 = 1099511628211 -) - -// hashNew initializies a new fnv64a hash value. -func hashNew() uint64 { - return offset64 -} - -// hashAdd adds a string to a fnv64a hash value, returning the updated hash. -func hashAdd(h uint64, s string) uint64 { - for i := 0; i < len(s); i++ { - h ^= uint64(s[i]) - h *= prime64 - } - return h -} - -// hashAddByte adds a byte to a fnv64a hash value, returning the updated hash. -func hashAddByte(h uint64, b byte) uint64 { - h ^= uint64(b) - h *= prime64 - return h -} diff --git a/vendor/github.com/prometheus/common/model/labels.go b/vendor/github.com/prometheus/common/model/labels.go deleted file mode 100644 index 41051a0..0000000 --- a/vendor/github.com/prometheus/common/model/labels.go +++ /dev/null @@ -1,210 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "encoding/json" - "fmt" - "regexp" - "strings" - "unicode/utf8" -) - -const ( - // AlertNameLabel is the name of the label containing the an alert's name. - AlertNameLabel = "alertname" - - // ExportedLabelPrefix is the prefix to prepend to the label names present in - // exported metrics if a label of the same name is added by the server. - ExportedLabelPrefix = "exported_" - - // MetricNameLabel is the label name indicating the metric name of a - // timeseries. - MetricNameLabel = "__name__" - - // SchemeLabel is the name of the label that holds the scheme on which to - // scrape a target. - SchemeLabel = "__scheme__" - - // AddressLabel is the name of the label that holds the address of - // a scrape target. - AddressLabel = "__address__" - - // MetricsPathLabel is the name of the label that holds the path on which to - // scrape a target. - MetricsPathLabel = "__metrics_path__" - - // ReservedLabelPrefix is a prefix which is not legal in user-supplied - // label names. - ReservedLabelPrefix = "__" - - // MetaLabelPrefix is a prefix for labels that provide meta information. - // Labels with this prefix are used for intermediate label processing and - // will not be attached to time series. - MetaLabelPrefix = "__meta_" - - // TmpLabelPrefix is a prefix for temporary labels as part of relabelling. - // Labels with this prefix are used for intermediate label processing and - // will not be attached to time series. This is reserved for use in - // Prometheus configuration files by users. - TmpLabelPrefix = "__tmp_" - - // ParamLabelPrefix is a prefix for labels that provide URL parameters - // used to scrape a target. - ParamLabelPrefix = "__param_" - - // JobLabel is the label name indicating the job from which a timeseries - // was scraped. - JobLabel = "job" - - // InstanceLabel is the label name used for the instance label. - InstanceLabel = "instance" - - // BucketLabel is used for the label that defines the upper bound of a - // bucket of a histogram ("le" -> "less or equal"). - BucketLabel = "le" - - // QuantileLabel is used for the label that defines the quantile in a - // summary. - QuantileLabel = "quantile" -) - -// LabelNameRE is a regular expression matching valid label names. Note that the -// IsValid method of LabelName performs the same check but faster than a match -// with this regular expression. -var LabelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$") - -// A LabelName is a key for a LabelSet or Metric. It has a value associated -// therewith. -type LabelName string - -// IsValid is true iff the label name matches the pattern of LabelNameRE. This -// method, however, does not use LabelNameRE for the check but a much faster -// hardcoded implementation. -func (ln LabelName) IsValid() bool { - if len(ln) == 0 { - return false - } - for i, b := range ln { - if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) { - return false - } - } - return true -} - -// UnmarshalYAML implements the yaml.Unmarshaler interface. -func (ln *LabelName) UnmarshalYAML(unmarshal func(interface{}) error) error { - var s string - if err := unmarshal(&s); err != nil { - return err - } - if !LabelName(s).IsValid() { - return fmt.Errorf("%q is not a valid label name", s) - } - *ln = LabelName(s) - return nil -} - -// UnmarshalJSON implements the json.Unmarshaler interface. -func (ln *LabelName) UnmarshalJSON(b []byte) error { - var s string - if err := json.Unmarshal(b, &s); err != nil { - return err - } - if !LabelName(s).IsValid() { - return fmt.Errorf("%q is not a valid label name", s) - } - *ln = LabelName(s) - return nil -} - -// LabelNames is a sortable LabelName slice. In implements sort.Interface. -type LabelNames []LabelName - -func (l LabelNames) Len() int { - return len(l) -} - -func (l LabelNames) Less(i, j int) bool { - return l[i] < l[j] -} - -func (l LabelNames) Swap(i, j int) { - l[i], l[j] = l[j], l[i] -} - -func (l LabelNames) String() string { - labelStrings := make([]string, 0, len(l)) - for _, label := range l { - labelStrings = append(labelStrings, string(label)) - } - return strings.Join(labelStrings, ", ") -} - -// A LabelValue is an associated value for a LabelName. -type LabelValue string - -// IsValid returns true iff the string is a valid UTF8. -func (lv LabelValue) IsValid() bool { - return utf8.ValidString(string(lv)) -} - -// LabelValues is a sortable LabelValue slice. It implements sort.Interface. -type LabelValues []LabelValue - -func (l LabelValues) Len() int { - return len(l) -} - -func (l LabelValues) Less(i, j int) bool { - return string(l[i]) < string(l[j]) -} - -func (l LabelValues) Swap(i, j int) { - l[i], l[j] = l[j], l[i] -} - -// LabelPair pairs a name with a value. -type LabelPair struct { - Name LabelName - Value LabelValue -} - -// LabelPairs is a sortable slice of LabelPair pointers. It implements -// sort.Interface. -type LabelPairs []*LabelPair - -func (l LabelPairs) Len() int { - return len(l) -} - -func (l LabelPairs) Less(i, j int) bool { - switch { - case l[i].Name > l[j].Name: - return false - case l[i].Name < l[j].Name: - return true - case l[i].Value > l[j].Value: - return false - case l[i].Value < l[j].Value: - return true - default: - return false - } -} - -func (l LabelPairs) Swap(i, j int) { - l[i], l[j] = l[j], l[i] -} diff --git a/vendor/github.com/prometheus/common/model/labelset.go b/vendor/github.com/prometheus/common/model/labelset.go deleted file mode 100644 index 6eda08a..0000000 --- a/vendor/github.com/prometheus/common/model/labelset.go +++ /dev/null @@ -1,169 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "encoding/json" - "fmt" - "sort" - "strings" -) - -// A LabelSet is a collection of LabelName and LabelValue pairs. The LabelSet -// may be fully-qualified down to the point where it may resolve to a single -// Metric in the data store or not. All operations that occur within the realm -// of a LabelSet can emit a vector of Metric entities to which the LabelSet may -// match. -type LabelSet map[LabelName]LabelValue - -// Validate checks whether all names and values in the label set -// are valid. -func (ls LabelSet) Validate() error { - for ln, lv := range ls { - if !ln.IsValid() { - return fmt.Errorf("invalid name %q", ln) - } - if !lv.IsValid() { - return fmt.Errorf("invalid value %q", lv) - } - } - return nil -} - -// Equal returns true iff both label sets have exactly the same key/value pairs. -func (ls LabelSet) Equal(o LabelSet) bool { - if len(ls) != len(o) { - return false - } - for ln, lv := range ls { - olv, ok := o[ln] - if !ok { - return false - } - if olv != lv { - return false - } - } - return true -} - -// Before compares the metrics, using the following criteria: -// -// If m has fewer labels than o, it is before o. If it has more, it is not. -// -// If the number of labels is the same, the superset of all label names is -// sorted alphanumerically. The first differing label pair found in that order -// determines the outcome: If the label does not exist at all in m, then m is -// before o, and vice versa. Otherwise the label value is compared -// alphanumerically. -// -// If m and o are equal, the method returns false. -func (ls LabelSet) Before(o LabelSet) bool { - if len(ls) < len(o) { - return true - } - if len(ls) > len(o) { - return false - } - - lns := make(LabelNames, 0, len(ls)+len(o)) - for ln := range ls { - lns = append(lns, ln) - } - for ln := range o { - lns = append(lns, ln) - } - // It's probably not worth it to de-dup lns. - sort.Sort(lns) - for _, ln := range lns { - mlv, ok := ls[ln] - if !ok { - return true - } - olv, ok := o[ln] - if !ok { - return false - } - if mlv < olv { - return true - } - if mlv > olv { - return false - } - } - return false -} - -// Clone returns a copy of the label set. -func (ls LabelSet) Clone() LabelSet { - lsn := make(LabelSet, len(ls)) - for ln, lv := range ls { - lsn[ln] = lv - } - return lsn -} - -// Merge is a helper function to non-destructively merge two label sets. -func (l LabelSet) Merge(other LabelSet) LabelSet { - result := make(LabelSet, len(l)) - - for k, v := range l { - result[k] = v - } - - for k, v := range other { - result[k] = v - } - - return result -} - -func (l LabelSet) String() string { - lstrs := make([]string, 0, len(l)) - for l, v := range l { - lstrs = append(lstrs, fmt.Sprintf("%s=%q", l, v)) - } - - sort.Strings(lstrs) - return fmt.Sprintf("{%s}", strings.Join(lstrs, ", ")) -} - -// Fingerprint returns the LabelSet's fingerprint. -func (ls LabelSet) Fingerprint() Fingerprint { - return labelSetToFingerprint(ls) -} - -// FastFingerprint returns the LabelSet's Fingerprint calculated by a faster hashing -// algorithm, which is, however, more susceptible to hash collisions. -func (ls LabelSet) FastFingerprint() Fingerprint { - return labelSetToFastFingerprint(ls) -} - -// UnmarshalJSON implements the json.Unmarshaler interface. -func (l *LabelSet) UnmarshalJSON(b []byte) error { - var m map[LabelName]LabelValue - if err := json.Unmarshal(b, &m); err != nil { - return err - } - // encoding/json only unmarshals maps of the form map[string]T. It treats - // LabelName as a string and does not call its UnmarshalJSON method. - // Thus, we have to replicate the behavior here. - for ln := range m { - if !ln.IsValid() { - return fmt.Errorf("%q is not a valid label name", ln) - } - } - *l = LabelSet(m) - return nil -} diff --git a/vendor/github.com/prometheus/common/model/metric.go b/vendor/github.com/prometheus/common/model/metric.go deleted file mode 100644 index f725090..0000000 --- a/vendor/github.com/prometheus/common/model/metric.go +++ /dev/null @@ -1,103 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "fmt" - "regexp" - "sort" - "strings" -) - -var ( - separator = []byte{0} - // MetricNameRE is a regular expression matching valid metric - // names. Note that the IsValidMetricName function performs the same - // check but faster than a match with this regular expression. - MetricNameRE = regexp.MustCompile(`^[a-zA-Z_:][a-zA-Z0-9_:]*$`) -) - -// A Metric is similar to a LabelSet, but the key difference is that a Metric is -// a singleton and refers to one and only one stream of samples. -type Metric LabelSet - -// Equal compares the metrics. -func (m Metric) Equal(o Metric) bool { - return LabelSet(m).Equal(LabelSet(o)) -} - -// Before compares the metrics' underlying label sets. -func (m Metric) Before(o Metric) bool { - return LabelSet(m).Before(LabelSet(o)) -} - -// Clone returns a copy of the Metric. -func (m Metric) Clone() Metric { - clone := make(Metric, len(m)) - for k, v := range m { - clone[k] = v - } - return clone -} - -func (m Metric) String() string { - metricName, hasName := m[MetricNameLabel] - numLabels := len(m) - 1 - if !hasName { - numLabels = len(m) - } - labelStrings := make([]string, 0, numLabels) - for label, value := range m { - if label != MetricNameLabel { - labelStrings = append(labelStrings, fmt.Sprintf("%s=%q", label, value)) - } - } - - switch numLabels { - case 0: - if hasName { - return string(metricName) - } - return "{}" - default: - sort.Strings(labelStrings) - return fmt.Sprintf("%s{%s}", metricName, strings.Join(labelStrings, ", ")) - } -} - -// Fingerprint returns a Metric's Fingerprint. -func (m Metric) Fingerprint() Fingerprint { - return LabelSet(m).Fingerprint() -} - -// FastFingerprint returns a Metric's Fingerprint calculated by a faster hashing -// algorithm, which is, however, more susceptible to hash collisions. -func (m Metric) FastFingerprint() Fingerprint { - return LabelSet(m).FastFingerprint() -} - -// IsValidMetricName returns true iff name matches the pattern of MetricNameRE. -// This function, however, does not use MetricNameRE for the check but a much -// faster hardcoded implementation. -func IsValidMetricName(n LabelValue) bool { - if len(n) == 0 { - return false - } - for i, b := range n { - if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || b == ':' || (b >= '0' && b <= '9' && i > 0)) { - return false - } - } - return true -} diff --git a/vendor/github.com/prometheus/common/model/model.go b/vendor/github.com/prometheus/common/model/model.go deleted file mode 100644 index a7b9691..0000000 --- a/vendor/github.com/prometheus/common/model/model.go +++ /dev/null @@ -1,16 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package model contains common data structures that are shared across -// Prometheus components and libraries. -package model diff --git a/vendor/github.com/prometheus/common/model/signature.go b/vendor/github.com/prometheus/common/model/signature.go deleted file mode 100644 index 8762b13..0000000 --- a/vendor/github.com/prometheus/common/model/signature.go +++ /dev/null @@ -1,144 +0,0 @@ -// Copyright 2014 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "sort" -) - -// SeparatorByte is a byte that cannot occur in valid UTF-8 sequences and is -// used to separate label names, label values, and other strings from each other -// when calculating their combined hash value (aka signature aka fingerprint). -const SeparatorByte byte = 255 - -var ( - // cache the signature of an empty label set. - emptyLabelSignature = hashNew() -) - -// LabelsToSignature returns a quasi-unique signature (i.e., fingerprint) for a -// given label set. (Collisions are possible but unlikely if the number of label -// sets the function is applied to is small.) -func LabelsToSignature(labels map[string]string) uint64 { - if len(labels) == 0 { - return emptyLabelSignature - } - - labelNames := make([]string, 0, len(labels)) - for labelName := range labels { - labelNames = append(labelNames, labelName) - } - sort.Strings(labelNames) - - sum := hashNew() - for _, labelName := range labelNames { - sum = hashAdd(sum, labelName) - sum = hashAddByte(sum, SeparatorByte) - sum = hashAdd(sum, labels[labelName]) - sum = hashAddByte(sum, SeparatorByte) - } - return sum -} - -// labelSetToFingerprint works exactly as LabelsToSignature but takes a LabelSet as -// parameter (rather than a label map) and returns a Fingerprint. -func labelSetToFingerprint(ls LabelSet) Fingerprint { - if len(ls) == 0 { - return Fingerprint(emptyLabelSignature) - } - - labelNames := make(LabelNames, 0, len(ls)) - for labelName := range ls { - labelNames = append(labelNames, labelName) - } - sort.Sort(labelNames) - - sum := hashNew() - for _, labelName := range labelNames { - sum = hashAdd(sum, string(labelName)) - sum = hashAddByte(sum, SeparatorByte) - sum = hashAdd(sum, string(ls[labelName])) - sum = hashAddByte(sum, SeparatorByte) - } - return Fingerprint(sum) -} - -// labelSetToFastFingerprint works similar to labelSetToFingerprint but uses a -// faster and less allocation-heavy hash function, which is more susceptible to -// create hash collisions. Therefore, collision detection should be applied. -func labelSetToFastFingerprint(ls LabelSet) Fingerprint { - if len(ls) == 0 { - return Fingerprint(emptyLabelSignature) - } - - var result uint64 - for labelName, labelValue := range ls { - sum := hashNew() - sum = hashAdd(sum, string(labelName)) - sum = hashAddByte(sum, SeparatorByte) - sum = hashAdd(sum, string(labelValue)) - result ^= sum - } - return Fingerprint(result) -} - -// SignatureForLabels works like LabelsToSignature but takes a Metric as -// parameter (rather than a label map) and only includes the labels with the -// specified LabelNames into the signature calculation. The labels passed in -// will be sorted by this function. -func SignatureForLabels(m Metric, labels ...LabelName) uint64 { - if len(labels) == 0 { - return emptyLabelSignature - } - - sort.Sort(LabelNames(labels)) - - sum := hashNew() - for _, label := range labels { - sum = hashAdd(sum, string(label)) - sum = hashAddByte(sum, SeparatorByte) - sum = hashAdd(sum, string(m[label])) - sum = hashAddByte(sum, SeparatorByte) - } - return sum -} - -// SignatureWithoutLabels works like LabelsToSignature but takes a Metric as -// parameter (rather than a label map) and excludes the labels with any of the -// specified LabelNames from the signature calculation. -func SignatureWithoutLabels(m Metric, labels map[LabelName]struct{}) uint64 { - if len(m) == 0 { - return emptyLabelSignature - } - - labelNames := make(LabelNames, 0, len(m)) - for labelName := range m { - if _, exclude := labels[labelName]; !exclude { - labelNames = append(labelNames, labelName) - } - } - if len(labelNames) == 0 { - return emptyLabelSignature - } - sort.Sort(labelNames) - - sum := hashNew() - for _, labelName := range labelNames { - sum = hashAdd(sum, string(labelName)) - sum = hashAddByte(sum, SeparatorByte) - sum = hashAdd(sum, string(m[labelName])) - sum = hashAddByte(sum, SeparatorByte) - } - return sum -} diff --git a/vendor/github.com/prometheus/common/model/silence.go b/vendor/github.com/prometheus/common/model/silence.go deleted file mode 100644 index bb99889..0000000 --- a/vendor/github.com/prometheus/common/model/silence.go +++ /dev/null @@ -1,106 +0,0 @@ -// Copyright 2015 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "encoding/json" - "fmt" - "regexp" - "time" -) - -// Matcher describes a matches the value of a given label. -type Matcher struct { - Name LabelName `json:"name"` - Value string `json:"value"` - IsRegex bool `json:"isRegex"` -} - -func (m *Matcher) UnmarshalJSON(b []byte) error { - type plain Matcher - if err := json.Unmarshal(b, (*plain)(m)); err != nil { - return err - } - - if len(m.Name) == 0 { - return fmt.Errorf("label name in matcher must not be empty") - } - if m.IsRegex { - if _, err := regexp.Compile(m.Value); err != nil { - return err - } - } - return nil -} - -// Validate returns true iff all fields of the matcher have valid values. -func (m *Matcher) Validate() error { - if !m.Name.IsValid() { - return fmt.Errorf("invalid name %q", m.Name) - } - if m.IsRegex { - if _, err := regexp.Compile(m.Value); err != nil { - return fmt.Errorf("invalid regular expression %q", m.Value) - } - } else if !LabelValue(m.Value).IsValid() || len(m.Value) == 0 { - return fmt.Errorf("invalid value %q", m.Value) - } - return nil -} - -// Silence defines the representation of a silence definition in the Prometheus -// eco-system. -type Silence struct { - ID uint64 `json:"id,omitempty"` - - Matchers []*Matcher `json:"matchers"` - - StartsAt time.Time `json:"startsAt"` - EndsAt time.Time `json:"endsAt"` - - CreatedAt time.Time `json:"createdAt,omitempty"` - CreatedBy string `json:"createdBy"` - Comment string `json:"comment,omitempty"` -} - -// Validate returns true iff all fields of the silence have valid values. -func (s *Silence) Validate() error { - if len(s.Matchers) == 0 { - return fmt.Errorf("at least one matcher required") - } - for _, m := range s.Matchers { - if err := m.Validate(); err != nil { - return fmt.Errorf("invalid matcher: %s", err) - } - } - if s.StartsAt.IsZero() { - return fmt.Errorf("start time missing") - } - if s.EndsAt.IsZero() { - return fmt.Errorf("end time missing") - } - if s.EndsAt.Before(s.StartsAt) { - return fmt.Errorf("start time must be before end time") - } - if s.CreatedBy == "" { - return fmt.Errorf("creator information missing") - } - if s.Comment == "" { - return fmt.Errorf("comment missing") - } - if s.CreatedAt.IsZero() { - return fmt.Errorf("creation timestamp missing") - } - return nil -} diff --git a/vendor/github.com/prometheus/common/model/time.go b/vendor/github.com/prometheus/common/model/time.go deleted file mode 100644 index 74ed5a9..0000000 --- a/vendor/github.com/prometheus/common/model/time.go +++ /dev/null @@ -1,264 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "fmt" - "math" - "regexp" - "strconv" - "strings" - "time" -) - -const ( - // MinimumTick is the minimum supported time resolution. This has to be - // at least time.Second in order for the code below to work. - minimumTick = time.Millisecond - // second is the Time duration equivalent to one second. - second = int64(time.Second / minimumTick) - // The number of nanoseconds per minimum tick. - nanosPerTick = int64(minimumTick / time.Nanosecond) - - // Earliest is the earliest Time representable. Handy for - // initializing a high watermark. - Earliest = Time(math.MinInt64) - // Latest is the latest Time representable. Handy for initializing - // a low watermark. - Latest = Time(math.MaxInt64) -) - -// Time is the number of milliseconds since the epoch -// (1970-01-01 00:00 UTC) excluding leap seconds. -type Time int64 - -// Interval describes and interval between two timestamps. -type Interval struct { - Start, End Time -} - -// Now returns the current time as a Time. -func Now() Time { - return TimeFromUnixNano(time.Now().UnixNano()) -} - -// TimeFromUnix returns the Time equivalent to the Unix Time t -// provided in seconds. -func TimeFromUnix(t int64) Time { - return Time(t * second) -} - -// TimeFromUnixNano returns the Time equivalent to the Unix Time -// t provided in nanoseconds. -func TimeFromUnixNano(t int64) Time { - return Time(t / nanosPerTick) -} - -// Equal reports whether two Times represent the same instant. -func (t Time) Equal(o Time) bool { - return t == o -} - -// Before reports whether the Time t is before o. -func (t Time) Before(o Time) bool { - return t < o -} - -// After reports whether the Time t is after o. -func (t Time) After(o Time) bool { - return t > o -} - -// Add returns the Time t + d. -func (t Time) Add(d time.Duration) Time { - return t + Time(d/minimumTick) -} - -// Sub returns the Duration t - o. -func (t Time) Sub(o Time) time.Duration { - return time.Duration(t-o) * minimumTick -} - -// Time returns the time.Time representation of t. -func (t Time) Time() time.Time { - return time.Unix(int64(t)/second, (int64(t)%second)*nanosPerTick) -} - -// Unix returns t as a Unix time, the number of seconds elapsed -// since January 1, 1970 UTC. -func (t Time) Unix() int64 { - return int64(t) / second -} - -// UnixNano returns t as a Unix time, the number of nanoseconds elapsed -// since January 1, 1970 UTC. -func (t Time) UnixNano() int64 { - return int64(t) * nanosPerTick -} - -// The number of digits after the dot. -var dotPrecision = int(math.Log10(float64(second))) - -// String returns a string representation of the Time. -func (t Time) String() string { - return strconv.FormatFloat(float64(t)/float64(second), 'f', -1, 64) -} - -// MarshalJSON implements the json.Marshaler interface. -func (t Time) MarshalJSON() ([]byte, error) { - return []byte(t.String()), nil -} - -// UnmarshalJSON implements the json.Unmarshaler interface. -func (t *Time) UnmarshalJSON(b []byte) error { - p := strings.Split(string(b), ".") - switch len(p) { - case 1: - v, err := strconv.ParseInt(string(p[0]), 10, 64) - if err != nil { - return err - } - *t = Time(v * second) - - case 2: - v, err := strconv.ParseInt(string(p[0]), 10, 64) - if err != nil { - return err - } - v *= second - - prec := dotPrecision - len(p[1]) - if prec < 0 { - p[1] = p[1][:dotPrecision] - } else if prec > 0 { - p[1] = p[1] + strings.Repeat("0", prec) - } - - va, err := strconv.ParseInt(p[1], 10, 32) - if err != nil { - return err - } - - *t = Time(v + va) - - default: - return fmt.Errorf("invalid time %q", string(b)) - } - return nil -} - -// Duration wraps time.Duration. It is used to parse the custom duration format -// from YAML. -// This type should not propagate beyond the scope of input/output processing. -type Duration time.Duration - -// Set implements pflag/flag.Value -func (d *Duration) Set(s string) error { - var err error - *d, err = ParseDuration(s) - return err -} - -// Type implements pflag.Value -func (d *Duration) Type() string { - return "duration" -} - -var durationRE = regexp.MustCompile("^([0-9]+)(y|w|d|h|m|s|ms)$") - -// ParseDuration parses a string into a time.Duration, assuming that a year -// always has 365d, a week always has 7d, and a day always has 24h. -func ParseDuration(durationStr string) (Duration, error) { - matches := durationRE.FindStringSubmatch(durationStr) - if len(matches) != 3 { - return 0, fmt.Errorf("not a valid duration string: %q", durationStr) - } - var ( - n, _ = strconv.Atoi(matches[1]) - dur = time.Duration(n) * time.Millisecond - ) - switch unit := matches[2]; unit { - case "y": - dur *= 1000 * 60 * 60 * 24 * 365 - case "w": - dur *= 1000 * 60 * 60 * 24 * 7 - case "d": - dur *= 1000 * 60 * 60 * 24 - case "h": - dur *= 1000 * 60 * 60 - case "m": - dur *= 1000 * 60 - case "s": - dur *= 1000 - case "ms": - // Value already correct - default: - return 0, fmt.Errorf("invalid time unit in duration string: %q", unit) - } - return Duration(dur), nil -} - -func (d Duration) String() string { - var ( - ms = int64(time.Duration(d) / time.Millisecond) - unit = "ms" - ) - if ms == 0 { - return "0s" - } - factors := map[string]int64{ - "y": 1000 * 60 * 60 * 24 * 365, - "w": 1000 * 60 * 60 * 24 * 7, - "d": 1000 * 60 * 60 * 24, - "h": 1000 * 60 * 60, - "m": 1000 * 60, - "s": 1000, - "ms": 1, - } - - switch int64(0) { - case ms % factors["y"]: - unit = "y" - case ms % factors["w"]: - unit = "w" - case ms % factors["d"]: - unit = "d" - case ms % factors["h"]: - unit = "h" - case ms % factors["m"]: - unit = "m" - case ms % factors["s"]: - unit = "s" - } - return fmt.Sprintf("%v%v", ms/factors[unit], unit) -} - -// MarshalYAML implements the yaml.Marshaler interface. -func (d Duration) MarshalYAML() (interface{}, error) { - return d.String(), nil -} - -// UnmarshalYAML implements the yaml.Unmarshaler interface. -func (d *Duration) UnmarshalYAML(unmarshal func(interface{}) error) error { - var s string - if err := unmarshal(&s); err != nil { - return err - } - dur, err := ParseDuration(s) - if err != nil { - return err - } - *d = dur - return nil -} diff --git a/vendor/github.com/prometheus/common/model/value.go b/vendor/github.com/prometheus/common/model/value.go deleted file mode 100644 index c9d8fb1..0000000 --- a/vendor/github.com/prometheus/common/model/value.go +++ /dev/null @@ -1,416 +0,0 @@ -// Copyright 2013 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package model - -import ( - "encoding/json" - "fmt" - "math" - "sort" - "strconv" - "strings" -) - -var ( - // ZeroSamplePair is the pseudo zero-value of SamplePair used to signal a - // non-existing sample pair. It is a SamplePair with timestamp Earliest and - // value 0.0. Note that the natural zero value of SamplePair has a timestamp - // of 0, which is possible to appear in a real SamplePair and thus not - // suitable to signal a non-existing SamplePair. - ZeroSamplePair = SamplePair{Timestamp: Earliest} - - // ZeroSample is the pseudo zero-value of Sample used to signal a - // non-existing sample. It is a Sample with timestamp Earliest, value 0.0, - // and metric nil. Note that the natural zero value of Sample has a timestamp - // of 0, which is possible to appear in a real Sample and thus not suitable - // to signal a non-existing Sample. - ZeroSample = Sample{Timestamp: Earliest} -) - -// A SampleValue is a representation of a value for a given sample at a given -// time. -type SampleValue float64 - -// MarshalJSON implements json.Marshaler. -func (v SampleValue) MarshalJSON() ([]byte, error) { - return json.Marshal(v.String()) -} - -// UnmarshalJSON implements json.Unmarshaler. -func (v *SampleValue) UnmarshalJSON(b []byte) error { - if len(b) < 2 || b[0] != '"' || b[len(b)-1] != '"' { - return fmt.Errorf("sample value must be a quoted string") - } - f, err := strconv.ParseFloat(string(b[1:len(b)-1]), 64) - if err != nil { - return err - } - *v = SampleValue(f) - return nil -} - -// Equal returns true if the value of v and o is equal or if both are NaN. Note -// that v==o is false if both are NaN. If you want the conventional float -// behavior, use == to compare two SampleValues. -func (v SampleValue) Equal(o SampleValue) bool { - if v == o { - return true - } - return math.IsNaN(float64(v)) && math.IsNaN(float64(o)) -} - -func (v SampleValue) String() string { - return strconv.FormatFloat(float64(v), 'f', -1, 64) -} - -// SamplePair pairs a SampleValue with a Timestamp. -type SamplePair struct { - Timestamp Time - Value SampleValue -} - -// MarshalJSON implements json.Marshaler. -func (s SamplePair) MarshalJSON() ([]byte, error) { - t, err := json.Marshal(s.Timestamp) - if err != nil { - return nil, err - } - v, err := json.Marshal(s.Value) - if err != nil { - return nil, err - } - return []byte(fmt.Sprintf("[%s,%s]", t, v)), nil -} - -// UnmarshalJSON implements json.Unmarshaler. -func (s *SamplePair) UnmarshalJSON(b []byte) error { - v := [...]json.Unmarshaler{&s.Timestamp, &s.Value} - return json.Unmarshal(b, &v) -} - -// Equal returns true if this SamplePair and o have equal Values and equal -// Timestamps. The semantics of Value equality is defined by SampleValue.Equal. -func (s *SamplePair) Equal(o *SamplePair) bool { - return s == o || (s.Value.Equal(o.Value) && s.Timestamp.Equal(o.Timestamp)) -} - -func (s SamplePair) String() string { - return fmt.Sprintf("%s @[%s]", s.Value, s.Timestamp) -} - -// Sample is a sample pair associated with a metric. -type Sample struct { - Metric Metric `json:"metric"` - Value SampleValue `json:"value"` - Timestamp Time `json:"timestamp"` -} - -// Equal compares first the metrics, then the timestamp, then the value. The -// semantics of value equality is defined by SampleValue.Equal. -func (s *Sample) Equal(o *Sample) bool { - if s == o { - return true - } - - if !s.Metric.Equal(o.Metric) { - return false - } - if !s.Timestamp.Equal(o.Timestamp) { - return false - } - - return s.Value.Equal(o.Value) -} - -func (s Sample) String() string { - return fmt.Sprintf("%s => %s", s.Metric, SamplePair{ - Timestamp: s.Timestamp, - Value: s.Value, - }) -} - -// MarshalJSON implements json.Marshaler. -func (s Sample) MarshalJSON() ([]byte, error) { - v := struct { - Metric Metric `json:"metric"` - Value SamplePair `json:"value"` - }{ - Metric: s.Metric, - Value: SamplePair{ - Timestamp: s.Timestamp, - Value: s.Value, - }, - } - - return json.Marshal(&v) -} - -// UnmarshalJSON implements json.Unmarshaler. -func (s *Sample) UnmarshalJSON(b []byte) error { - v := struct { - Metric Metric `json:"metric"` - Value SamplePair `json:"value"` - }{ - Metric: s.Metric, - Value: SamplePair{ - Timestamp: s.Timestamp, - Value: s.Value, - }, - } - - if err := json.Unmarshal(b, &v); err != nil { - return err - } - - s.Metric = v.Metric - s.Timestamp = v.Value.Timestamp - s.Value = v.Value.Value - - return nil -} - -// Samples is a sortable Sample slice. It implements sort.Interface. -type Samples []*Sample - -func (s Samples) Len() int { - return len(s) -} - -// Less compares first the metrics, then the timestamp. -func (s Samples) Less(i, j int) bool { - switch { - case s[i].Metric.Before(s[j].Metric): - return true - case s[j].Metric.Before(s[i].Metric): - return false - case s[i].Timestamp.Before(s[j].Timestamp): - return true - default: - return false - } -} - -func (s Samples) Swap(i, j int) { - s[i], s[j] = s[j], s[i] -} - -// Equal compares two sets of samples and returns true if they are equal. -func (s Samples) Equal(o Samples) bool { - if len(s) != len(o) { - return false - } - - for i, sample := range s { - if !sample.Equal(o[i]) { - return false - } - } - return true -} - -// SampleStream is a stream of Values belonging to an attached COWMetric. -type SampleStream struct { - Metric Metric `json:"metric"` - Values []SamplePair `json:"values"` -} - -func (ss SampleStream) String() string { - vals := make([]string, len(ss.Values)) - for i, v := range ss.Values { - vals[i] = v.String() - } - return fmt.Sprintf("%s =>\n%s", ss.Metric, strings.Join(vals, "\n")) -} - -// Value is a generic interface for values resulting from a query evaluation. -type Value interface { - Type() ValueType - String() string -} - -func (Matrix) Type() ValueType { return ValMatrix } -func (Vector) Type() ValueType { return ValVector } -func (*Scalar) Type() ValueType { return ValScalar } -func (*String) Type() ValueType { return ValString } - -type ValueType int - -const ( - ValNone ValueType = iota - ValScalar - ValVector - ValMatrix - ValString -) - -// MarshalJSON implements json.Marshaler. -func (et ValueType) MarshalJSON() ([]byte, error) { - return json.Marshal(et.String()) -} - -func (et *ValueType) UnmarshalJSON(b []byte) error { - var s string - if err := json.Unmarshal(b, &s); err != nil { - return err - } - switch s { - case "<ValNone>": - *et = ValNone - case "scalar": - *et = ValScalar - case "vector": - *et = ValVector - case "matrix": - *et = ValMatrix - case "string": - *et = ValString - default: - return fmt.Errorf("unknown value type %q", s) - } - return nil -} - -func (e ValueType) String() string { - switch e { - case ValNone: - return "<ValNone>" - case ValScalar: - return "scalar" - case ValVector: - return "vector" - case ValMatrix: - return "matrix" - case ValString: - return "string" - } - panic("ValueType.String: unhandled value type") -} - -// Scalar is a scalar value evaluated at the set timestamp. -type Scalar struct { - Value SampleValue `json:"value"` - Timestamp Time `json:"timestamp"` -} - -func (s Scalar) String() string { - return fmt.Sprintf("scalar: %v @[%v]", s.Value, s.Timestamp) -} - -// MarshalJSON implements json.Marshaler. -func (s Scalar) MarshalJSON() ([]byte, error) { - v := strconv.FormatFloat(float64(s.Value), 'f', -1, 64) - return json.Marshal([...]interface{}{s.Timestamp, string(v)}) -} - -// UnmarshalJSON implements json.Unmarshaler. -func (s *Scalar) UnmarshalJSON(b []byte) error { - var f string - v := [...]interface{}{&s.Timestamp, &f} - - if err := json.Unmarshal(b, &v); err != nil { - return err - } - - value, err := strconv.ParseFloat(f, 64) - if err != nil { - return fmt.Errorf("error parsing sample value: %s", err) - } - s.Value = SampleValue(value) - return nil -} - -// String is a string value evaluated at the set timestamp. -type String struct { - Value string `json:"value"` - Timestamp Time `json:"timestamp"` -} - -func (s *String) String() string { - return s.Value -} - -// MarshalJSON implements json.Marshaler. -func (s String) MarshalJSON() ([]byte, error) { - return json.Marshal([]interface{}{s.Timestamp, s.Value}) -} - -// UnmarshalJSON implements json.Unmarshaler. -func (s *String) UnmarshalJSON(b []byte) error { - v := [...]interface{}{&s.Timestamp, &s.Value} - return json.Unmarshal(b, &v) -} - -// Vector is basically only an alias for Samples, but the -// contract is that in a Vector, all Samples have the same timestamp. -type Vector []*Sample - -func (vec Vector) String() string { - entries := make([]string, len(vec)) - for i, s := range vec { - entries[i] = s.String() - } - return strings.Join(entries, "\n") -} - -func (vec Vector) Len() int { return len(vec) } -func (vec Vector) Swap(i, j int) { vec[i], vec[j] = vec[j], vec[i] } - -// Less compares first the metrics, then the timestamp. -func (vec Vector) Less(i, j int) bool { - switch { - case vec[i].Metric.Before(vec[j].Metric): - return true - case vec[j].Metric.Before(vec[i].Metric): - return false - case vec[i].Timestamp.Before(vec[j].Timestamp): - return true - default: - return false - } -} - -// Equal compares two sets of samples and returns true if they are equal. -func (vec Vector) Equal(o Vector) bool { - if len(vec) != len(o) { - return false - } - - for i, sample := range vec { - if !sample.Equal(o[i]) { - return false - } - } - return true -} - -// Matrix is a list of time series. -type Matrix []*SampleStream - -func (m Matrix) Len() int { return len(m) } -func (m Matrix) Less(i, j int) bool { return m[i].Metric.Before(m[j].Metric) } -func (m Matrix) Swap(i, j int) { m[i], m[j] = m[j], m[i] } - -func (mat Matrix) String() string { - matCp := make(Matrix, len(mat)) - copy(matCp, mat) - sort.Sort(matCp) - - strs := make([]string, len(matCp)) - - for i, ss := range matCp { - strs[i] = ss.String() - } - - return strings.Join(strs, "\n") -} |