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TracingUtils.java
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TracingUtils.java
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package io.sentry.util;
import io.sentry.Baggage;
import io.sentry.BaggageHeader;
import io.sentry.IHub;
import io.sentry.IScope;
import io.sentry.ISpan;
import io.sentry.PropagationContext;
import io.sentry.SentryOptions;
import io.sentry.SentryTraceHeader;
import java.util.List;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
public final class TracingUtils {
public static void startNewTrace(final @NotNull IHub hub) {
hub.configureScope(
scope -> {
scope.withPropagationContext(
propagationContext -> {
scope.setPropagationContext(new PropagationContext());
});
});
}
public static @Nullable TracingHeaders traceIfAllowed(
final @NotNull IHub hub,
final @NotNull String requestUrl,
@Nullable List<String> thirdPartyBaggageHeaders,
final @Nullable ISpan span) {
final @NotNull SentryOptions sentryOptions = hub.getOptions();
if (sentryOptions.isTraceSampling() && shouldAttachTracingHeaders(requestUrl, sentryOptions)) {
return trace(hub, thirdPartyBaggageHeaders, span);
}
return null;
}
public static @Nullable TracingHeaders trace(
final @NotNull IHub hub,
@Nullable List<String> thirdPartyBaggageHeaders,
final @Nullable ISpan span) {
final @NotNull SentryOptions sentryOptions = hub.getOptions();
if (span != null && !span.isNoOp()) {
return new TracingHeaders(
span.toSentryTrace(), span.toBaggageHeader(thirdPartyBaggageHeaders));
} else {
final @NotNull PropagationContextHolder returnValue = new PropagationContextHolder();
hub.configureScope(
(scope) -> {
returnValue.propagationContext = maybeUpdateBaggage(scope, sentryOptions);
});
if (returnValue.propagationContext != null) {
final @NotNull PropagationContext propagationContext = returnValue.propagationContext;
final @Nullable Baggage baggage = propagationContext.getBaggage();
@Nullable BaggageHeader baggageHeader = null;
if (baggage != null) {
baggageHeader =
BaggageHeader.fromBaggageAndOutgoingHeader(baggage, thirdPartyBaggageHeaders);
}
return new TracingHeaders(
new SentryTraceHeader(
propagationContext.getTraceId(), propagationContext.getSpanId(), null),
baggageHeader);
}
return null;
}
}
public static @NotNull PropagationContext maybeUpdateBaggage(
final @NotNull IScope scope, final @NotNull SentryOptions sentryOptions) {
return scope.withPropagationContext(
propagationContext -> {
@Nullable Baggage baggage = propagationContext.getBaggage();
if (baggage == null) {
baggage = new Baggage(sentryOptions.getLogger());
propagationContext.setBaggage(baggage);
}
if (baggage.isMutable()) {
baggage.setValuesFromScope(scope, sentryOptions);
baggage.freeze();
}
});
}
private static boolean shouldAttachTracingHeaders(
final @NotNull String requestUrl, final @NotNull SentryOptions sentryOptions) {
return PropagationTargetsUtils.contain(sentryOptions.getTracePropagationTargets(), requestUrl);
}
private static final class PropagationContextHolder {
private @Nullable PropagationContext propagationContext = null;
}
public static final class TracingHeaders {
private final @NotNull SentryTraceHeader sentryTraceHeader;
private final @Nullable BaggageHeader baggageHeader;
public TracingHeaders(
final @NotNull SentryTraceHeader sentryTraceHeader,
final @Nullable BaggageHeader baggageHeader) {
this.sentryTraceHeader = sentryTraceHeader;
this.baggageHeader = baggageHeader;
}
public @NotNull SentryTraceHeader getSentryTraceHeader() {
return sentryTraceHeader;
}
public @Nullable BaggageHeader getBaggageHeader() {
return baggageHeader;
}
}
}