aboutsummaryrefslogtreecommitdiff
path: root/vendor/go.opencensus.io/plugin/ocgrpc/client.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/go.opencensus.io/plugin/ocgrpc/client.go')
-rw-r--r--vendor/go.opencensus.io/plugin/ocgrpc/client.go56
1 files changed, 56 insertions, 0 deletions
diff --git a/vendor/go.opencensus.io/plugin/ocgrpc/client.go b/vendor/go.opencensus.io/plugin/ocgrpc/client.go
new file mode 100644
index 0000000..a6c466a
--- /dev/null
+++ b/vendor/go.opencensus.io/plugin/ocgrpc/client.go
@@ -0,0 +1,56 @@
+// Copyright 2018, OpenCensus 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 ocgrpc
+
+import (
+ "go.opencensus.io/trace"
+ "golang.org/x/net/context"
+
+ "google.golang.org/grpc/stats"
+)
+
+// ClientHandler implements a gRPC stats.Handler for recording OpenCensus stats and
+// traces. Use with gRPC clients only.
+type ClientHandler struct {
+ // StartOptions allows configuring the StartOptions used to create new spans.
+ //
+ // StartOptions.SpanKind will always be set to trace.SpanKindClient
+ // for spans started by this handler.
+ StartOptions trace.StartOptions
+}
+
+// HandleConn exists to satisfy gRPC stats.Handler.
+func (c *ClientHandler) HandleConn(ctx context.Context, cs stats.ConnStats) {
+ // no-op
+}
+
+// TagConn exists to satisfy gRPC stats.Handler.
+func (c *ClientHandler) TagConn(ctx context.Context, cti *stats.ConnTagInfo) context.Context {
+ // no-op
+ return ctx
+}
+
+// HandleRPC implements per-RPC tracing and stats instrumentation.
+func (c *ClientHandler) HandleRPC(ctx context.Context, rs stats.RPCStats) {
+ traceHandleRPC(ctx, rs)
+ statsHandleRPC(ctx, rs)
+}
+
+// TagRPC implements per-RPC context management.
+func (c *ClientHandler) TagRPC(ctx context.Context, rti *stats.RPCTagInfo) context.Context {
+ ctx = c.traceTagRPC(ctx, rti)
+ ctx = c.statsTagRPC(ctx, rti)
+ return ctx
+}