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Use config properties for spring starter (http server) (#11667)
Co-authored-by: Lauri Tulmin <[email protected]> Co-authored-by: Trask Stalnaker <[email protected]>
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.../instrumentation/api/incubator/builder/internal/DefaultHttpServerInstrumenterBuilder.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,219 @@ | ||
| /* | ||
| * Copyright The OpenTelemetry Authors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package io.opentelemetry.instrumentation.api.incubator.builder.internal; | ||
|
|
||
| import com.google.errorprone.annotations.CanIgnoreReturnValue; | ||
| import io.opentelemetry.api.OpenTelemetry; | ||
| import io.opentelemetry.context.propagation.TextMapGetter; | ||
| import io.opentelemetry.instrumentation.api.incubator.config.internal.CommonConfig; | ||
| import io.opentelemetry.instrumentation.api.incubator.semconv.http.HttpExperimentalAttributesExtractor; | ||
| import io.opentelemetry.instrumentation.api.incubator.semconv.http.HttpServerExperimentalMetrics; | ||
| import io.opentelemetry.instrumentation.api.instrumenter.AttributesExtractor; | ||
| import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter; | ||
| import io.opentelemetry.instrumentation.api.instrumenter.InstrumenterBuilder; | ||
| import io.opentelemetry.instrumentation.api.instrumenter.SpanKindExtractor; | ||
| import io.opentelemetry.instrumentation.api.instrumenter.SpanNameExtractor; | ||
| import io.opentelemetry.instrumentation.api.instrumenter.SpanStatusExtractor; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpServerAttributesExtractor; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpServerAttributesExtractorBuilder; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpServerAttributesGetter; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpServerMetrics; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpServerRoute; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpServerRouteBuilder; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpSpanNameExtractor; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpSpanNameExtractorBuilder; | ||
| import io.opentelemetry.instrumentation.api.semconv.http.HttpSpanStatusExtractor; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
| import java.util.function.Consumer; | ||
| import java.util.function.Function; | ||
| import java.util.function.Supplier; | ||
| import javax.annotation.Nullable; | ||
|
|
||
| /** | ||
| * This class is internal and is hence not for public use. Its APIs are unstable and can change at | ||
| * any time. | ||
| */ | ||
| public final class DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> { | ||
|
|
||
| private final String instrumentationName; | ||
| private final OpenTelemetry openTelemetry; | ||
|
|
||
| private final List<AttributesExtractor<? super REQUEST, ? super RESPONSE>> additionalExtractors = | ||
| new ArrayList<>(); | ||
| private Function< | ||
| SpanStatusExtractor<? super REQUEST, ? super RESPONSE>, | ||
| ? extends SpanStatusExtractor<? super REQUEST, ? super RESPONSE>> | ||
| statusExtractorTransformer = Function.identity(); | ||
| private final HttpServerAttributesExtractorBuilder<REQUEST, RESPONSE> | ||
| httpAttributesExtractorBuilder; | ||
| private final HttpSpanNameExtractorBuilder<REQUEST> httpSpanNameExtractorBuilder; | ||
|
|
||
| @Nullable private TextMapGetter<REQUEST> headerGetter; | ||
| private Function<SpanNameExtractor<REQUEST>, ? extends SpanNameExtractor<? super REQUEST>> | ||
| spanNameExtractorTransformer = Function.identity(); | ||
| private final HttpServerRouteBuilder<REQUEST> httpServerRouteBuilder; | ||
| private final HttpServerAttributesGetter<REQUEST, RESPONSE> attributesGetter; | ||
| private boolean emitExperimentalHttpServerMetrics = false; | ||
|
|
||
| public DefaultHttpServerInstrumenterBuilder( | ||
| String instrumentationName, | ||
| OpenTelemetry openTelemetry, | ||
| HttpServerAttributesGetter<REQUEST, RESPONSE> attributesGetter) { | ||
| this.instrumentationName = instrumentationName; | ||
| this.openTelemetry = openTelemetry; | ||
| httpAttributesExtractorBuilder = HttpServerAttributesExtractor.builder(attributesGetter); | ||
| httpSpanNameExtractorBuilder = HttpSpanNameExtractor.builder(attributesGetter); | ||
| httpServerRouteBuilder = HttpServerRoute.builder(attributesGetter); | ||
| this.attributesGetter = attributesGetter; | ||
| } | ||
|
|
||
| /** | ||
| * Adds an additional {@link AttributesExtractor} to invoke to set attributes to instrumented | ||
| * items. | ||
| */ | ||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> addAttributesExtractor( | ||
| AttributesExtractor<? super REQUEST, ? super RESPONSE> attributesExtractor) { | ||
| additionalExtractors.add(attributesExtractor); | ||
| return this; | ||
| } | ||
|
|
||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> setStatusExtractor( | ||
| Function< | ||
| SpanStatusExtractor<? super REQUEST, ? super RESPONSE>, | ||
| ? extends SpanStatusExtractor<? super REQUEST, ? super RESPONSE>> | ||
| statusExtractor) { | ||
| this.statusExtractorTransformer = statusExtractor; | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Configures the HTTP request headers that will be captured as span attributes. | ||
| * | ||
| * @param requestHeaders A list of HTTP header names. | ||
| */ | ||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> setCapturedRequestHeaders( | ||
| List<String> requestHeaders) { | ||
| httpAttributesExtractorBuilder.setCapturedRequestHeaders(requestHeaders); | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Configures the HTTP response headers that will be captured as span attributes. | ||
| * | ||
| * @param responseHeaders A list of HTTP header names. | ||
| */ | ||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> setCapturedResponseHeaders( | ||
| List<String> responseHeaders) { | ||
| httpAttributesExtractorBuilder.setCapturedResponseHeaders(responseHeaders); | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Configures the instrumentation to recognize an alternative set of HTTP request methods. | ||
| * | ||
| * <p>By default, this instrumentation defines "known" methods as the ones listed in <a | ||
| * href="https://www.rfc-editor.org/rfc/rfc9110.html#name-methods">RFC9110</a> and the PATCH | ||
| * method defined in <a href="https://www.rfc-editor.org/rfc/rfc5789.html">RFC5789</a>. | ||
| * | ||
| * <p>Note: calling this method <b>overrides</b> the default known method sets completely; it does | ||
| * not supplement it. | ||
| * | ||
| * @param knownMethods A set of recognized HTTP request methods. | ||
| * @see HttpServerAttributesExtractorBuilder#setKnownMethods(Set) | ||
| */ | ||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> setKnownMethods( | ||
| Set<String> knownMethods) { | ||
| httpAttributesExtractorBuilder.setKnownMethods(knownMethods); | ||
| httpSpanNameExtractorBuilder.setKnownMethods(knownMethods); | ||
| httpServerRouteBuilder.setKnownMethods(knownMethods); | ||
| return this; | ||
| } | ||
|
|
||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> setHeaderGetter( | ||
| @Nullable TextMapGetter<REQUEST> headerGetter) { | ||
| this.headerGetter = headerGetter; | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Configures the instrumentation to emit experimental HTTP server metrics. | ||
| * | ||
| * @param emitExperimentalHttpServerMetrics {@code true} if the experimental HTTP server metrics | ||
| * are to be emitted. | ||
| */ | ||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> | ||
| setEmitExperimentalHttpServerMetrics(boolean emitExperimentalHttpServerMetrics) { | ||
| this.emitExperimentalHttpServerMetrics = emitExperimentalHttpServerMetrics; | ||
| return this; | ||
| } | ||
|
|
||
| /** Sets custom {@link SpanNameExtractor} via transform function. */ | ||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> setSpanNameExtractor( | ||
| Function<SpanNameExtractor<REQUEST>, ? extends SpanNameExtractor<? super REQUEST>> | ||
| spanNameExtractorTransformer) { | ||
| this.spanNameExtractorTransformer = spanNameExtractorTransformer; | ||
| return this; | ||
| } | ||
|
|
||
| public Instrumenter<REQUEST, RESPONSE> build() { | ||
| InstrumenterBuilder<REQUEST, RESPONSE> builder = builder(); | ||
|
|
||
| if (headerGetter != null) { | ||
| return builder.buildServerInstrumenter(headerGetter); | ||
| } | ||
| return builder.buildInstrumenter(SpanKindExtractor.alwaysServer()); | ||
| } | ||
|
|
||
| private InstrumenterBuilder<REQUEST, RESPONSE> builder() { | ||
| SpanNameExtractor<? super REQUEST> spanNameExtractor = | ||
| spanNameExtractorTransformer.apply(httpSpanNameExtractorBuilder.build()); | ||
|
|
||
| InstrumenterBuilder<REQUEST, RESPONSE> builder = | ||
| Instrumenter.<REQUEST, RESPONSE>builder( | ||
| openTelemetry, instrumentationName, spanNameExtractor) | ||
| .setSpanStatusExtractor( | ||
| statusExtractorTransformer.apply(HttpSpanStatusExtractor.create(attributesGetter))) | ||
| .addAttributesExtractor(httpAttributesExtractorBuilder.build()) | ||
| .addAttributesExtractors(additionalExtractors) | ||
| .addContextCustomizer(httpServerRouteBuilder.build()) | ||
| .addOperationMetrics(HttpServerMetrics.get()); | ||
| if (emitExperimentalHttpServerMetrics) { | ||
| builder | ||
| .addAttributesExtractor(HttpExperimentalAttributesExtractor.create(attributesGetter)) | ||
| .addOperationMetrics(HttpServerExperimentalMetrics.get()); | ||
| } | ||
|
|
||
| return builder; | ||
| } | ||
|
|
||
| @CanIgnoreReturnValue | ||
| public DefaultHttpServerInstrumenterBuilder<REQUEST, RESPONSE> configure(CommonConfig config) { | ||
| set(config::getKnownHttpRequestMethods, this::setKnownMethods); | ||
| set(config::getServerRequestHeaders, this::setCapturedRequestHeaders); | ||
| set(config::getServerResponseHeaders, this::setCapturedResponseHeaders); | ||
| set( | ||
| config::shouldEmitExperimentalHttpServerTelemetry, | ||
| this::setEmitExperimentalHttpServerMetrics); | ||
| return this; | ||
| } | ||
|
|
||
| private static <T> void set(Supplier<T> supplier, Consumer<T> consumer) { | ||
| T t = supplier.get(); | ||
| if (t != null) { | ||
| consumer.accept(t); | ||
| } | ||
| } | ||
| } |
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