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// Copyright 2020 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package logcontext
import newrelic "github.com/newrelic/go-agent"
// Keys used for logging context JSON.
const (
KeyFile = "file.name"
KeyLevel = "log.level"
KeyLine = "line.number"
KeyMessage = "message"
KeyMethod = "method.name"
KeyTimestamp = "timestamp"
KeyTraceID = "trace.id"
KeySpanID = "span.id"
KeyEntityName = "entity.name"
KeyEntityType = "entity.type"
KeyEntityGUID = "entity.guid"
KeyHostname = "hostname"
)
func metadataMapField(m map[string]interface{}, key, val string) {
if val != "" {
m[key] = val
}
}
// AddLinkingMetadata adds the LinkingMetadata into a map. Only non-empty
// string fields are included in the map. The specific key names facilitate
// agent logs in context. These keys are: "trace.id", "span.id",
// "entity.name", "entity.type", "entity.guid", and "hostname".
func AddLinkingMetadata(m map[string]interface{}, md newrelic.LinkingMetadata) {
metadataMapField(m, KeyTraceID, md.TraceID)
metadataMapField(m, KeySpanID, md.SpanID)
metadataMapField(m, KeyEntityName, md.EntityName)
metadataMapField(m, KeyEntityType, md.EntityType)
metadataMapField(m, KeyEntityGUID, md.EntityGUID)
metadataMapField(m, KeyHostname, md.Hostname)
}
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