85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package batchprocessor // import "go.opentelemetry.io/collector/processor/batchprocessor"
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import (
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"go.opentelemetry.io/collector/pdata/ptrace"
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)
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// splitTraces removes spans from the input trace and returns a new trace of the specified size.
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func splitTraces(size int, src ptrace.Traces) ptrace.Traces {
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if src.SpanCount() <= size {
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return src
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}
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totalCopiedSpans := 0
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dest := ptrace.NewTraces()
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src.ResourceSpans().RemoveIf(func(srcRs ptrace.ResourceSpans) bool {
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// If we are done skip everything else.
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if totalCopiedSpans == size {
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return false
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}
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// If it fully fits
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srcRsSC := resourceSC(srcRs)
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if (totalCopiedSpans + srcRsSC) <= size {
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totalCopiedSpans += srcRsSC
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srcRs.MoveTo(dest.ResourceSpans().AppendEmpty())
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return true
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}
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destRs := dest.ResourceSpans().AppendEmpty()
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srcRs.Resource().CopyTo(destRs.Resource())
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srcRs.ScopeSpans().RemoveIf(func(srcIls ptrace.ScopeSpans) bool {
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// If we are done skip everything else.
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if totalCopiedSpans == size {
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return false
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}
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// If possible to move all metrics do that.
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srcIlsSC := srcIls.Spans().Len()
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if size-totalCopiedSpans >= srcIlsSC {
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totalCopiedSpans += srcIlsSC
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srcIls.MoveTo(destRs.ScopeSpans().AppendEmpty())
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return true
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}
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destIls := destRs.ScopeSpans().AppendEmpty()
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srcIls.Scope().CopyTo(destIls.Scope())
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srcIls.Spans().RemoveIf(func(srcSpan ptrace.Span) bool {
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// If we are done skip everything else.
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if totalCopiedSpans == size {
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return false
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}
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srcSpan.MoveTo(destIls.Spans().AppendEmpty())
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totalCopiedSpans++
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return true
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})
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return false
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})
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return srcRs.ScopeSpans().Len() == 0
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})
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return dest
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}
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// resourceSC calculates the total number of spans in the ptrace.ResourceSpans.
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func resourceSC(rs ptrace.ResourceSpans) (count int) {
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for k := 0; k < rs.ScopeSpans().Len(); k++ {
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count += rs.ScopeSpans().At(k).Spans().Len()
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}
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return
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}
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