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Use standard ArrayList size rather than max number of links for initial span links allocation #6252

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merged 4 commits into from May 7, 2024
Merged

Use standard ArrayList size rather than max number of links for initial span links allocation #6252

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d90174c
Use standard ArrayList size rather than max number of links for initi…
johnbley Feb 26, 2024
23cfdab
Add test specifically exercising links fault-in
johnbley Feb 26, 2024
5c8e116
Merge branch 'main' into smaller_links_allocation
johnbley May 6, 2024
90713a0
Fix compilation issues from merge
johnbley May 6, 2024
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2 changes: 1 addition & 1 deletion sdk/trace/src/main/java/io/opentelemetry/sdk/trace/SdkSpan.java
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Expand Up @@ -462,7 +462,7 @@ public Span addLink(SpanContext spanContext, Attributes attributes) {
return this;
}
if (links == null) {
links = new ArrayList<>(spanLimits.getMaxNumberOfLinks());
links = new ArrayList<>();
}
if (links.size() < spanLimits.getMaxNumberOfLinks()) {
links.add(link);
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30 changes: 30 additions & 0 deletions sdk/trace/src/test/java/io/opentelemetry/sdk/trace/SdkSpanTest.java
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Expand Up @@ -897,6 +897,36 @@ void addLink_InvalidArgs() {
.doesNotThrowAnyException();
}

@Test
void addLink_FaultIn() {
SdkSpan span =
SdkSpan.startSpan(
spanContext,
SPAN_NAME,
instrumentationScopeInfo,
SpanKind.INTERNAL,
Span.getInvalid(),
Context.root(),
SpanLimits.getDefault(),
spanProcessor,
testClock,
resource,
null,
null, // exercises the fault-in path
0,
0);
ExtendedSpan linkedSpan = createTestSpan(SpanKind.INTERNAL);
span.addLink(linkedSpan.getSpanContext());

SpanData spanData = span.toSpanData();
assertThat(spanData.getTotalRecordedLinks()).isEqualTo(1);
assertThat(spanData.getLinks())
.satisfiesExactly(
link -> {
assertThat(link.getSpanContext()).isEqualTo(linkedSpan.getSpanContext());
});
}

@Test
void droppingAttributes() {
int maxNumberOfAttributes = 8;
Expand Down