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[exporterhelper] Add default batching for OTLP data type
Make the exporter batching capability to be available for the regular exporter helper without using custom requests.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| package exporterhelper | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
|
|
||
| "go.opentelemetry.io/collector/exporter/exporterbatcher" | ||
| "go.opentelemetry.io/collector/pdata/plog" | ||
| ) | ||
|
|
||
| // mergeLogs merges two logs requests into one. | ||
| func mergeLogs(_ context.Context, r1 Request, r2 Request) (Request, error) { | ||
| lr1, ok1 := r1.(*logsRequest) | ||
| lr2, ok2 := r2.(*logsRequest) | ||
| if !ok1 || !ok2 { | ||
| return nil, errors.New("invalid input type") | ||
| } | ||
| lr2.ld.ResourceLogs().MoveAndAppendTo(lr1.ld.ResourceLogs()) | ||
| return lr1, nil | ||
| } | ||
|
|
||
| // mergeSplitLogs splits and/or merges the logs into multiple requests based on the MaxSizeConfig. | ||
| func mergeSplitLogs(_ context.Context, cfg exporterbatcher.MaxSizeConfig, r1 Request, r2 Request) ([]Request, error) { | ||
| var ( | ||
| res []Request | ||
| destReq *logsRequest | ||
| capacityLeft = cfg.MaxSizeItems | ||
| ) | ||
| for _, req := range []Request{r1, r2} { | ||
| if req == nil { | ||
| continue | ||
| } | ||
| srcReq, ok := req.(*logsRequest) | ||
| if !ok { | ||
| return nil, errors.New("invalid input type") | ||
| } | ||
| if srcReq.ld.LogRecordCount() <= capacityLeft { | ||
| if destReq == nil { | ||
| destReq = srcReq | ||
| } else { | ||
| srcReq.ld.ResourceLogs().MoveAndAppendTo(destReq.ld.ResourceLogs()) | ||
| } | ||
| capacityLeft = cfg.MaxSizeItems - destReq.ld.LogRecordCount() | ||
| continue | ||
| } | ||
|
|
||
| for { | ||
| extractedLogs := extractLogs(srcReq.ld, capacityLeft) | ||
| if extractedLogs.LogRecordCount() == 0 { | ||
| break | ||
| } | ||
| capacityLeft -= extractedLogs.LogRecordCount() | ||
| if destReq == nil { | ||
| destReq = &logsRequest{ld: extractedLogs, pusher: srcReq.pusher} | ||
| } else { | ||
| extractedLogs.ResourceLogs().MoveAndAppendTo(destReq.ld.ResourceLogs()) | ||
| } | ||
| if capacityLeft == 0 { | ||
| res = append(res, destReq) | ||
| destReq = nil | ||
| capacityLeft = cfg.MaxSizeItems | ||
| } | ||
| } | ||
| } | ||
|
|
||
| if destReq != nil { | ||
| res = append(res, destReq) | ||
| } | ||
| return res, nil | ||
| } | ||
|
|
||
| // extractLogs extracts logs from the input logs and returns a new logs with the specified number of log records. | ||
| func extractLogs(srcLogs plog.Logs, count int) plog.Logs { | ||
| destLogs := plog.NewLogs() | ||
| srcLogs.ResourceLogs().RemoveIf(func(srcRL plog.ResourceLogs) bool { | ||
| if resourceLogsCount(srcRL) <= count { | ||
| count -= resourceLogsCount(srcRL) | ||
| srcRL.MoveTo(destLogs.ResourceLogs().AppendEmpty()) | ||
| return true | ||
| } | ||
| extractedRL := extractResourceLogs(srcRL, count) | ||
| if resourceLogsCount(extractedRL) > 0 { | ||
| extractedRL.MoveTo(destLogs.ResourceLogs().AppendEmpty()) | ||
| } | ||
| return resourceLogsCount(srcRL) == 0 | ||
| }) | ||
| return destLogs | ||
| } | ||
|
|
||
| // extractResourceLogs extracts resource logs and returns a new resource logs with the specified number of log records. | ||
| func extractResourceLogs(srcRL plog.ResourceLogs, count int) plog.ResourceLogs { | ||
| destRL := plog.NewResourceLogs() | ||
| srcRL.Resource().CopyTo(destRL.Resource()) | ||
| destRL.SetSchemaUrl(srcRL.SchemaUrl()) | ||
| srcRL.ScopeLogs().RemoveIf(func(srcSL plog.ScopeLogs) bool { | ||
| if srcSL.LogRecords().Len() <= count { | ||
| count -= srcSL.LogRecords().Len() | ||
| srcSL.MoveTo(destRL.ScopeLogs().AppendEmpty()) | ||
| return true | ||
| } | ||
| extractedSL := extractScopeLogs(srcSL, count) | ||
| if extractedSL.LogRecords().Len() > 0 { | ||
| extractedSL.MoveTo(destRL.ScopeLogs().AppendEmpty()) | ||
| } | ||
| return srcSL.LogRecords().Len() == 0 | ||
| }) | ||
| return destRL | ||
| } | ||
|
|
||
| // extractScopeLogs extracts scope logs and returns a new scope logs with the specified number of log records. | ||
| func extractScopeLogs(srcSL plog.ScopeLogs, count int) plog.ScopeLogs { | ||
| destSL := plog.NewScopeLogs() | ||
| destSL.SetSchemaUrl(srcSL.SchemaUrl()) | ||
| srcSL.LogRecords().RemoveIf(func(srcLR plog.LogRecord) bool { | ||
| if count > 0 { | ||
| srcLR.MoveTo(destSL.LogRecords().AppendEmpty()) | ||
| count-- | ||
| return true | ||
| } | ||
| return false | ||
| }) | ||
| return destSL | ||
| } | ||
|
|
||
| // resourceLogsCount calculates the total number of log records in the plog.ResourceLogs. | ||
| func resourceLogsCount(rl plog.ResourceLogs) int { | ||
| count := 0 | ||
| for k := 0; k < rl.ScopeLogs().Len(); k++ { | ||
| count += rl.ScopeLogs().At(k).LogRecords().Len() | ||
| } | ||
| return count | ||
| } |
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