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Diffstat (limited to 'vendor/github.com/golang/protobuf/ptypes/any.go')
| -rw-r--r-- | vendor/github.com/golang/protobuf/ptypes/any.go | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/vendor/github.com/golang/protobuf/ptypes/any.go b/vendor/github.com/golang/protobuf/ptypes/any.go deleted file mode 100644 index 70276e8..0000000 --- a/vendor/github.com/golang/protobuf/ptypes/any.go +++ /dev/null @@ -1,141 +0,0 @@ -// Go support for Protocol Buffers - Google's data interchange format -// -// Copyright 2016 The Go Authors. All rights reserved. -// https://github.com/golang/protobuf -// -// 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 Google Inc. 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 -// OWNER 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 ptypes - -// This file implements functions to marshal proto.Message to/from -// google.protobuf.Any message. - -import ( - "fmt" - "reflect" - "strings" - - "github.com/golang/protobuf/proto" - "github.com/golang/protobuf/ptypes/any" -) - -const googleApis = "type.googleapis.com/" - -// AnyMessageName returns the name of the message contained in a google.protobuf.Any message. -// -// Note that regular type assertions should be done using the Is -// function. AnyMessageName is provided for less common use cases like filtering a -// sequence of Any messages based on a set of allowed message type names. -func AnyMessageName(any *any.Any) (string, error) { - if any == nil { - return "", fmt.Errorf("message is nil") - } - slash := strings.LastIndex(any.TypeUrl, "/") - if slash < 0 { - return "", fmt.Errorf("message type url %q is invalid", any.TypeUrl) - } - return any.TypeUrl[slash+1:], nil -} - -// MarshalAny takes the protocol buffer and encodes it into google.protobuf.Any. -func MarshalAny(pb proto.Message) (*any.Any, error) { - value, err := proto.Marshal(pb) - if err != nil { - return nil, err - } - return &any.Any{TypeUrl: googleApis + proto.MessageName(pb), Value: value}, nil -} - -// DynamicAny is a value that can be passed to UnmarshalAny to automatically -// allocate a proto.Message for the type specified in a google.protobuf.Any -// message. The allocated message is stored in the embedded proto.Message. -// -// Example: -// -// var x ptypes.DynamicAny -// if err := ptypes.UnmarshalAny(a, &x); err != nil { ... } -// fmt.Printf("unmarshaled message: %v", x.Message) -type DynamicAny struct { - proto.Message -} - -// Empty returns a new proto.Message of the type specified in a -// google.protobuf.Any message. It returns an error if corresponding message -// type isn't linked in. -func Empty(any *any.Any) (proto.Message, error) { - aname, err := AnyMessageName(any) - if err != nil { - return nil, err - } - - t := proto.MessageType(aname) - if t == nil { - return nil, fmt.Errorf("any: message type %q isn't linked in", aname) - } - return reflect.New(t.Elem()).Interface().(proto.Message), nil -} - -// UnmarshalAny parses the protocol buffer representation in a google.protobuf.Any -// message and places the decoded result in pb. It returns an error if type of -// contents of Any message does not match type of pb message. -// -// pb can be a proto.Message, or a *DynamicAny. -func UnmarshalAny(any *any.Any, pb proto.Message) error { - if d, ok := pb.(*DynamicAny); ok { - if d.Message == nil { - var err error - d.Message, err = Empty(any) - if err != nil { - return err - } - } - return UnmarshalAny(any, d.Message) - } - - aname, err := AnyMessageName(any) - if err != nil { - return err - } - - mname := proto.MessageName(pb) - if aname != mname { - return fmt.Errorf("mismatched message type: got %q want %q", aname, mname) - } - return proto.Unmarshal(any.Value, pb) -} - -// Is returns true if any value contains a given message type. -func Is(any *any.Any, pb proto.Message) bool { - // The following is equivalent to AnyMessageName(any) == proto.MessageName(pb), - // but it avoids scanning TypeUrl for the slash. - if any == nil { - return false - } - name := proto.MessageName(pb) - prefix := len(any.TypeUrl) - len(name) - return prefix >= 1 && any.TypeUrl[prefix-1] == '/' && any.TypeUrl[prefix:] == name -} |