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aggregated_decoder.go
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aggregated_decoder.go
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// Copyright (c) 2018 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 protobuf
import (
"github.com/m3db/m3/src/metrics/generated/proto/metricpb"
"github.com/m3db/m3/src/metrics/policy"
)
// AggregatedDecoder is a decoder for decoding aggregated metrics.
type AggregatedDecoder struct {
pool AggregatedDecoderPool
pb metricpb.AggregatedMetric
}
// NewAggregatedDecoder creates an aggregated decoder.
func NewAggregatedDecoder(p AggregatedDecoderPool) *AggregatedDecoder {
return &AggregatedDecoder{
pool: p,
}
}
// Decode decodes the aggregated metric from the given bytes.
func (d *AggregatedDecoder) Decode(b []byte) error {
return d.pb.Unmarshal(b)
}
// ID returns the decoded id.
func (d AggregatedDecoder) ID() []byte {
return d.pb.Metric.TimedMetric.Id
}
// TimeNanos returns the decoded timestamp.
func (d AggregatedDecoder) TimeNanos() int64 {
return d.pb.Metric.TimedMetric.TimeNanos
}
// Value returns the decoded value.
func (d AggregatedDecoder) Value() float64 {
return d.pb.Metric.TimedMetric.Value
}
// StoragePolicy returns the decoded storage policy.
func (d AggregatedDecoder) StoragePolicy() (policy.StoragePolicy, error) {
return policy.NewStoragePolicyFromProto(&d.pb.Metric.StoragePolicy)
}
// EncodeNanos returns the decoded encodeNanos.
func (d AggregatedDecoder) EncodeNanos() int64 {
return d.pb.EncodeNanos
}
// Close closes the decoder.
func (d *AggregatedDecoder) Close() {
resetAggregatedMetricProto(&d.pb)
if d.pool != nil {
d.pool.Put(d)
}
}