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nodename.go
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nodename.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package modelprocessor
import (
"context"
"github.com/elastic/apm-data/model/modelpb"
)
// SetServiceNodeName is a transform.Processor that sets the service
// node name value for events without one already set.
//
// SetServiceNodeName should be called after SetHostHostname, to
// ensure Name is set.
type SetServiceNodeName struct{}
// ProcessBatch sets a default service.node.name for events without one already set.
func (SetServiceNodeName) ProcessBatch(ctx context.Context, b *modelpb.Batch) error {
for i := range *b {
setServiceNodeName((*b)[i])
}
return nil
}
func setServiceNodeName(event *modelpb.APMEvent) {
if event.GetService().GetNode().GetName() != "" {
// Already set.
return
}
nodeName := event.GetContainer().GetId()
if nodeName == "" {
nodeName = event.GetHost().GetName()
}
if nodeName == "" {
// no op
return
}
if event.Service == nil {
event.Service = modelpb.ServiceFromVTPool()
}
if event.Service.Node == nil {
event.Service.Node = modelpb.ServiceNodeFromVTPool()
}
event.Service.Node.Name = nodeName
}