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logs.go
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logs.go
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// Copyright The OpenTelemetry Authors
//
// Licensed 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:https://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 common // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/transformprocessor/internal/common"
import (
"context"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/pdata/plog"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl/contexts/ottllog"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl/contexts/ottlresource"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl/contexts/ottlscope"
)
var _ consumer.Logs = &logStatements{}
type logStatements []*ottl.Statement[ottllog.TransformContext]
func (l logStatements) Capabilities() consumer.Capabilities {
return consumer.Capabilities{
MutatesData: true,
}
}
func (l logStatements) ConsumeLogs(ctx context.Context, ld plog.Logs) error {
for i := 0; i < ld.ResourceLogs().Len(); i++ {
rlogs := ld.ResourceLogs().At(i)
for j := 0; j < rlogs.ScopeLogs().Len(); j++ {
slogs := rlogs.ScopeLogs().At(j)
logs := slogs.LogRecords()
for k := 0; k < logs.Len(); k++ {
tCtx := ottllog.NewTransformContext(logs.At(k), slogs.Scope(), rlogs.Resource())
for _, statement := range l {
_, _, err := statement.Execute(ctx, tCtx)
if err != nil {
return err
}
}
}
}
}
return nil
}
type LogParserCollection struct {
parserCollection
logParser ottl.Parser[ottllog.TransformContext]
}
type LogParserCollectionOption func(*LogParserCollection) error
func WithLogParser(functions map[string]interface{}) LogParserCollectionOption {
return func(lp *LogParserCollection) error {
lp.logParser = ottllog.NewParser(functions, lp.settings)
return nil
}
}
func NewLogParserCollection(settings component.TelemetrySettings, options ...LogParserCollectionOption) (*LogParserCollection, error) {
lpc := &LogParserCollection{
parserCollection: parserCollection{
settings: settings,
resourceParser: ottlresource.NewParser(ResourceFunctions(), settings),
scopeParser: ottlscope.NewParser(ScopeFunctions(), settings),
},
}
for _, op := range options {
err := op(lpc)
if err != nil {
return nil, err
}
}
return lpc, nil
}
func (pc LogParserCollection) ParseContextStatements(contextStatements ContextStatements) (consumer.Logs, error) {
switch contextStatements.Context {
case Log:
lStatements, err := pc.logParser.ParseStatements(contextStatements.Statements)
if err != nil {
return nil, err
}
return logStatements(lStatements), nil
default:
statements, err := pc.parseCommonContextStatements(contextStatements)
if err != nil {
return nil, err
}
return statements, nil
}
}