/
metadataAggregator.go
71 lines (58 loc) · 1.92 KB
/
metadataAggregator.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016-present Datadog, Inc.
package aggregator
import (
"bytes"
"encoding/json"
"time"
"github.com/DataDog/datadog-agent/test/fakeintake/api"
)
// A MetadataPayload is a struct that represents a metadata payload
type MetadataPayload struct {
Hostname string `json:"hostname"`
Timestamp int64 `json:"timestamp"`
Metadata map[string]interface{} `json:"agent_metadata"`
collectedTime time.Time
}
func (mp *MetadataPayload) name() string {
return mp.Hostname
}
// GetTags return the tags from a payload
func (mp *MetadataPayload) GetTags() []string {
return []string{}
}
// GetCollectedTime return the time when the payload has been collected by the fakeintake server
func (mp *MetadataPayload) GetCollectedTime() time.Time {
return mp.collectedTime
}
// ParseMetadataPayload return the parsed metadata from payload
func ParseMetadataPayload(payload api.Payload) (metadataPayloads []*MetadataPayload, err error) {
if bytes.Equal(payload.Data, []byte("{}")) {
// metadata can submit empty JSON object
return []*MetadataPayload{}, nil
}
enflated, err := enflate(payload.Data, payload.Encoding)
if err != nil {
return nil, err
}
var metadataPayload = &MetadataPayload{
collectedTime: payload.Timestamp,
}
err = json.Unmarshal(enflated, metadataPayload)
if err != nil {
return nil, err
}
return []*MetadataPayload{metadataPayload}, nil
}
// MetadataAggregator is a type that represents a metadata aggregator
type MetadataAggregator struct {
Aggregator[*MetadataPayload]
}
// NewMetadataAggregator returns a new metadata aggregator
func NewMetadataAggregator() MetadataAggregator {
return MetadataAggregator{
Aggregator: newAggregator(ParseMetadataPayload),
}
}