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Migrate dd-trace-core groovy files to java part 13 #12253

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Migrate dd-trace-core groovy files to java part 13 #12253

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37bcdd1
Migrate dd-trace-core groovy files to java part 13
jpbempel Jun 11, 2026
d0990c3
address codex comments
jpbempel Aug 21, 2026
6d857f0
fix FootprintForkedTest
jpbempel Aug 21, 2026
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4 changes: 4 additions & 0 deletions dd-trace-core/src/main/java/datadog/trace/common/metrics/Aggregator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,10 @@ void resetCoreHandlers(HealthMetrics healthMetrics, CardinalityLimitReporter rep
aggregates.resetCoreHandlers(healthMetrics, reporter);
}

AggregateTable aggregates() {
return aggregates;
}

@Override
public void run() {
Thread currentThread = Thread.currentThread();
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10 changes: 10 additions & 0 deletions dd-trace-core/src/main/java/datadog/trace/common/metrics/ClientStatsAggregator.java
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Expand Up @@ -21,6 +21,7 @@
import datadog.communication.ddagent.SharedCommunicationObjects;
import datadog.trace.api.Config;
import datadog.trace.api.WellKnownTags;
import datadog.trace.api.internal.VisibleForTesting;
import datadog.trace.bootstrap.instrumentation.api.InstrumentationTags;
import datadog.trace.common.metrics.SignalItem.ReportSignal;
import datadog.trace.common.writer.ddagent.DDAgentApi;
Expand Down Expand Up @@ -309,6 +310,10 @@ TimeUnit reportingIntervalTimeUnit() {
return reportingIntervalTimeUnit;
}

Aggregator aggregator() {
return aggregator;
}

@Override
public void start() {
sink.register(this);
Expand Down Expand Up @@ -738,4 +743,9 @@ public void run(ClientStatsAggregator target) {
target.report();
}
}

@VisibleForTesting
boolean isEmpty() {
return inbox.isEmpty();
}
}
11 changes: 11 additions & 0 deletions dd-trace-core/src/main/java/datadog/trace/common/sampling/RateByServiceTraceSampler.java
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Expand Up @@ -2,6 +2,7 @@

import datadog.trace.api.cache.DDCache;
import datadog.trace.api.cache.DDCaches;
import datadog.trace.api.internal.VisibleForTesting;
import datadog.trace.api.sampling.PrioritySampling;
import datadog.trace.api.sampling.SamplingMechanism;
import datadog.trace.api.time.SystemTimeSource;
Expand Down Expand Up @@ -77,6 +78,16 @@ private <T extends CoreSpan<T>> String getSpanEnv(final T span) {
return span.getTag("env", "");
}

@VisibleForTesting
double sampleRateFor(String env, String service) {
return serviceRates.getSampler(env, service).getSampleRate();
}

@VisibleForTesting
double fallbackSampleRate() {
return serviceRates.getFallbackSampler().getSampleRate();
}

static boolean shouldCap(double oldRate, double newRate) {
return oldRate != 0 && newRate > oldRate * MAX_RATE_INCREASE_FACTOR;
}
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