common/asyncworkflow/queue/kafka/decoder.go

// The MIT License (MIT)

// Copyright (c) 2017-2020 Uber Technologies Inc.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package kafka

import (
	"encoding/json"
	"fmt"

	"github.com/uber/cadence/common/asyncworkflow/queue/provider"
	"github.com/uber/cadence/common/types"
)

type (
	decoderImpl struct {
		blob *types.DataBlob
	}
)

func newDecoder(blob *types.DataBlob) provider.Decoder {
	return &decoderImpl{
		blob: blob,
	}
}

func (d *decoderImpl) Decode(out any) error {
	if d.blob.GetEncodingType() != types.EncodingTypeJSON {
		return fmt.Errorf("unsupported encoding type %v", d.blob.GetEncodingType())
	}
	return json.Unmarshal(d.blob.Data, out)
}