mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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dfe2b6f143
* draft: otlp exporter trace grpc * address comments and improve usability * change passthrough example to go 1.15 * code cleanups * copy dependencies to `otlptrace` * fix typo on makefile * address comments * update code with latest changes * fix comments Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
106 lines
3.1 KiB
Go
106 lines
3.1 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 otlptracetest
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import (
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"sort"
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collectortracepb "go.opentelemetry.io/proto/otlp/collector/trace/v1"
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commonpb "go.opentelemetry.io/proto/otlp/common/v1"
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resourcepb "go.opentelemetry.io/proto/otlp/resource/v1"
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tracepb "go.opentelemetry.io/proto/otlp/trace/v1"
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)
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// TracesCollector mocks a collector for the end-to-end testing.
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type TracesCollector interface {
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Stop() error
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GetResourceSpans() []*tracepb.ResourceSpans
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}
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// SpansStorage stores the spans. Mock collectors can use it to
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// store spans they have received.
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type SpansStorage struct {
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rsm map[string]*tracepb.ResourceSpans
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spanCount int
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}
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// NewSpansStorage creates a new spans storage.
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func NewSpansStorage() SpansStorage {
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return SpansStorage{
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rsm: make(map[string]*tracepb.ResourceSpans),
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}
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}
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// AddSpans adds spans to the spans storage.
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func (s *SpansStorage) AddSpans(request *collectortracepb.ExportTraceServiceRequest) {
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for _, rs := range request.GetResourceSpans() {
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rstr := resourceString(rs.Resource)
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if existingRs, ok := s.rsm[rstr]; !ok {
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s.rsm[rstr] = rs
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// TODO (rghetia): Add support for library Info.
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if len(rs.InstrumentationLibrarySpans) == 0 {
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rs.InstrumentationLibrarySpans = []*tracepb.InstrumentationLibrarySpans{
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{
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Spans: []*tracepb.Span{},
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},
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}
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}
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s.spanCount += len(rs.InstrumentationLibrarySpans[0].Spans)
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} else {
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if len(rs.InstrumentationLibrarySpans) > 0 {
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newSpans := rs.InstrumentationLibrarySpans[0].GetSpans()
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existingRs.InstrumentationLibrarySpans[0].Spans =
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append(existingRs.InstrumentationLibrarySpans[0].Spans,
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newSpans...)
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s.spanCount += len(newSpans)
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}
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}
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}
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}
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// GetSpans returns the stored spans.
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func (s *SpansStorage) GetSpans() []*tracepb.Span {
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spans := make([]*tracepb.Span, 0, s.spanCount)
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for _, rs := range s.rsm {
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spans = append(spans, rs.InstrumentationLibrarySpans[0].Spans...)
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}
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return spans
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}
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// GetResourceSpans returns the stored resource spans.
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func (s *SpansStorage) GetResourceSpans() []*tracepb.ResourceSpans {
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rss := make([]*tracepb.ResourceSpans, 0, len(s.rsm))
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for _, rs := range s.rsm {
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rss = append(rss, rs)
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}
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return rss
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}
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func resourceString(res *resourcepb.Resource) string {
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sAttrs := sortedAttributes(res.GetAttributes())
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rstr := ""
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for _, attr := range sAttrs {
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rstr = rstr + attr.String()
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}
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return rstr
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}
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func sortedAttributes(attrs []*commonpb.KeyValue) []*commonpb.KeyValue {
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sort.Slice(attrs[:], func(i, j int) bool {
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return attrs[i].Key < attrs[j].Key
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})
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return attrs
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}
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