Created
November 14, 2023 22:03
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json flattener processor
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| package oteljsonlogflattenerprocessor | |
| import ( | |
| "context" | |
| "encoding/json" | |
| "reflect" | |
| "go.opentelemetry.io/collector/component" | |
| "go.opentelemetry.io/collector/consumer" | |
| "go.opentelemetry.io/collector/pdata/plog" | |
| "go.opentelemetry.io/collector/processor" | |
| "go.uber.org/zap" | |
| ) | |
| var _ processor.Logs = (*jsonlogflattenerProcessor)(nil) | |
| type jsonlogflattenerProcessor struct { | |
| config *Config | |
| next consumer.Logs | |
| logger *zap.Logger | |
| } | |
| func newProcessor(config *Config, next consumer.Logs, logger *zap.Logger) (*jsonlogflattenerProcessor, error) { | |
| return &jsonlogflattenerProcessor{ | |
| config: config, | |
| logger: logger, | |
| next: next, | |
| }, nil | |
| } | |
| func (jlp *jsonlogflattenerProcessor) Capabilities() consumer.Capabilities { | |
| return consumer.Capabilities{MutatesData: true} | |
| } | |
| func (jlp *jsonlogflattenerProcessor) ConsumeLogs(ctx context.Context, ld plog.Logs) error { | |
| if err := jlp.flatten(&ld); err != nil { | |
| jlp.logger.Error(err.Error()) | |
| } | |
| return jlp.next.ConsumeLogs(ctx, ld) | |
| } | |
| func (jlp *jsonlogflattenerProcessor) Start(_ context.Context, host component.Host) error { | |
| return nil | |
| } | |
| func (jlp *jsonlogflattenerProcessor) Shutdown(context.Context) error { | |
| return nil | |
| } | |
| func (jlp *jsonlogflattenerProcessor) flatten(ld *plog.Logs) error { | |
| var rootErr error | |
| for i := 0; i < ld.ResourceLogs().Len(); i++ { | |
| for j := 0; j < ld.ResourceLogs().At(i).ScopeLogs().Len(); j++ { | |
| for k := 0; k < ld.ResourceLogs().At(i).ScopeLogs().At(j).LogRecords().Len(); k++ { | |
| for l, m := range ld.ResourceLogs().At(i).ScopeLogs().At(j).LogRecords().At(k).Attributes().AsRaw() { | |
| if reflect.TypeOf(m).Kind() == reflect.Map || reflect.TypeOf(m).Kind() == reflect.Slice { | |
| payload, err := json.Marshal(m) | |
| if err != nil { | |
| jlp.logger.Error(err.Error()) | |
| rootErr = fmt.Errorf("%w: %w", rootErr, err) | |
| continue | |
| } | |
| ld.ResourceLogs().At(i).ScopeLogs().At(j).LogRecords().At(k).Attributes().PutStr(l, string(payload)) | |
| } | |
| } | |
| } | |
| } | |
| } | |
| return rootErr | |
| } |
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