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70 lines
2.4 KiB
Go
70 lines
2.4 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package serializer
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import (
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"bytes"
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"github.com/gogo/protobuf/jsonpb"
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"github.com/gogo/protobuf/proto"
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)
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type (
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// JSONPBEncoder is JSON encoder/decoder for protobuf structs and slices of protobuf structs.
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// This is an wrapper on top of jsonpb.Marshaler which supports not only single object serialization
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// but also slices of concrete objects.
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JSONPBEncoder struct {
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marshaler jsonpb.Marshaler
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unmarshaler jsonpb.Unmarshaler
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}
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)
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// NewJSONPBEncoder creates a new JSONPBEncoder.
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func NewJSONPBEncoder() *JSONPBEncoder {
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return &JSONPBEncoder{
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marshaler: jsonpb.Marshaler{},
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unmarshaler: jsonpb.Unmarshaler{},
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}
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}
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// NewJSONPBIndentEncoder creates a new JSONPBEncoder with indent.
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func NewJSONPBIndentEncoder(indent string) *JSONPBEncoder {
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return &JSONPBEncoder{
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marshaler: jsonpb.Marshaler{Indent: indent},
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unmarshaler: jsonpb.Unmarshaler{},
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}
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}
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// Encode protobuf struct to bytes.
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func (e *JSONPBEncoder) Encode(pb proto.Message) ([]byte, error) {
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var buf bytes.Buffer
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err := e.marshaler.Marshal(&buf, pb)
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return buf.Bytes(), err
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}
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// Decode bytes to protobuf struct.
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func (e *JSONPBEncoder) Decode(data []byte, pb proto.Message) error {
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return e.unmarshaler.Unmarshal(bytes.NewReader(data), pb)
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}
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