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jax-rs: replace common singleton with factory (#5961)

This commit is contained in:
Lauri Tulmin 2022-05-03 05:12:29 +03:00 committed by GitHub
parent d5b935a92c
commit 4bd8956dd3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
19 changed files with 180 additions and 94 deletions
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2
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-annotations/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/ContainerRequestFilterInstrumentation.java
View File

@ -53,7 +53,7 @@ public class ContainerRequestFilterInstrumentation implements TypeInstrumentatio
public static void setFilterClass(
@Advice.This ContainerRequestFilter filter,
@Advice.Argument(0) ContainerRequestContext context) {
context.setProperty(JaxrsSingletons.ABORT_FILTER_CLASS, filter.getClass());
context.setProperty(JaxrsConstants.ABORT_FILTER_CLASS, filter.getClass());
}
}
}

6
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-annotations/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/DefaultRequestContextInstrumentation.java
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@ -5,7 +5,7 @@
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsAnnotationsSingletons.instrumenter;
import io.opentelemetry.context.Context;
import io.opentelemetry.context.Scope;
@ -41,12 +41,12 @@ public class DefaultRequestContextInstrumentation extends AbstractRequestContext
@Local("otelHandlerData") HandlerData handlerData,
@Local("otelContext") Context context,
@Local("otelScope") Scope scope) {
if (requestContext.getProperty(JaxrsSingletons.ABORT_HANDLED) != null) {
if (requestContext.getProperty(JaxrsConstants.ABORT_HANDLED) != null) {
return;
}
Class<?> filterClass =
(Class<?>) requestContext.getProperty(JaxrsSingletons.ABORT_FILTER_CLASS);
(Class<?>) requestContext.getProperty(JaxrsConstants.ABORT_FILTER_CLASS);
Method method = null;
try {
method = filterClass.getMethod("filter", ContainerRequestContext.class);

5
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-annotations/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JaxrsAnnotationsInstrumentation.java
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@ -8,7 +8,7 @@ package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasClassesNamed;
import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasSuperMethod;
import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasSuperType;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsAnnotationsSingletons.instrumenter;
import static net.bytebuddy.matcher.ElementMatchers.declaresMethod;
import static net.bytebuddy.matcher.ElementMatchers.isAnnotatedWith;
import static net.bytebuddy.matcher.ElementMatchers.isMethod;
@ -156,7 +156,8 @@ public class JaxrsAnnotationsInstrumentation implements TypeInstrumentation {
if (asyncReturnValue != null) {
// span finished by CompletionStageFinishCallback
asyncReturnValue =
asyncReturnValue.handle(new CompletionStageFinishCallback<>(context, handlerData));
asyncReturnValue.handle(
new CompletionStageFinishCallback<>(instrumenter(), context, handlerData));
}
if ((asyncResponse == null || !asyncResponse.isSuspended()) && asyncReturnValue == null) {
instrumenter().end(context, handlerData, null, null);

20
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-annotations/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JaxrsAnnotationsSingletons.java Normal file
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@ -0,0 +1,20 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
public final class JaxrsAnnotationsSingletons {
private static final Instrumenter<HandlerData, Void> INSTANCE =
JaxrsInstrumenterFactory.createInstrumenter("io.opentelemetry.jaxrs-annotations-2.0");
public static Instrumenter<HandlerData, Void> instrumenter() {
return INSTANCE;
}
private JaxrsAnnotationsSingletons() {}
}

2
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-annotations/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JaxrsAsyncResponseInstrumentation.java
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@ -7,7 +7,7 @@ package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasClassesNamed;
import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.implementsInterface;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsAnnotationsSingletons.instrumenter;
import static net.bytebuddy.matcher.ElementMatchers.isPublic;
import static net.bytebuddy.matcher.ElementMatchers.named;
import static net.bytebuddy.matcher.ElementMatchers.takesArgument;

10
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/CompletionStageFinishCallback.java
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@ -5,23 +5,25 @@
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import io.opentelemetry.context.Context;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
import java.util.function.BiFunction;
public class CompletionStageFinishCallback<T> implements BiFunction<T, Throwable, T> {
private final Instrumenter<HandlerData, Void> instrumenter;
private final Context context;
private final HandlerData handlerData;
public CompletionStageFinishCallback(Context context, HandlerData handlerData) {
public CompletionStageFinishCallback(
Instrumenter<HandlerData, Void> instrumenter, Context context, HandlerData handlerData) {
this.instrumenter = instrumenter;
this.context = context;
this.handlerData = handlerData;
}
@Override
public T apply(T result, Throwable throwable) {
instrumenter().end(context, handlerData, null, throwable);
instrumenter.end(context, handlerData, null, throwable);
return result;
}
}

15
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JaxrsConstants.java Normal file
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@ -0,0 +1,15 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
final class JaxrsConstants {
public static final String ABORT_FILTER_CLASS =
"io.opentelemetry.javaagent.instrumentation.jaxrs2.filter.abort.class";
public static final String ABORT_HANDLED =
"io.opentelemetry.javaagent.instrumentation.jaxrs2.filter.abort.handled";
private JaxrsConstants() {}
}

29
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JaxrsInstrumenterFactory.java Normal file
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@ -0,0 +1,29 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import io.opentelemetry.api.GlobalOpenTelemetry;
import io.opentelemetry.instrumentation.api.config.ExperimentalConfig;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
import io.opentelemetry.instrumentation.api.instrumenter.code.CodeAttributesExtractor;
import io.opentelemetry.instrumentation.api.instrumenter.code.CodeSpanNameExtractor;
final class JaxrsInstrumenterFactory {
public static Instrumenter<HandlerData, Void> createInstrumenter(String instrumentationName) {
JaxrsCodeAttributesGetter codeAttributesGetter = new JaxrsCodeAttributesGetter();
return Instrumenter.<HandlerData, Void>builder(
GlobalOpenTelemetry.get(),
instrumentationName,
CodeSpanNameExtractor.create(codeAttributesGetter))
.addAttributesExtractor(CodeAttributesExtractor.create(codeAttributesGetter))
.setEnabled(ExperimentalConfig.get().controllerTelemetryEnabled())
.newInstrumenter();
}
private JaxrsInstrumenterFactory() {}
}

43
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JaxrsSingletons.java
View File

@ -1,43 +0,0 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import io.opentelemetry.api.GlobalOpenTelemetry;
import io.opentelemetry.instrumentation.api.config.ExperimentalConfig;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
import io.opentelemetry.instrumentation.api.instrumenter.code.CodeAttributesExtractor;
import io.opentelemetry.instrumentation.api.instrumenter.code.CodeSpanNameExtractor;
public final class JaxrsSingletons {
public static final String ABORT_FILTER_CLASS =
"io.opentelemetry.javaagent.instrumentation.jaxrs2.filter.abort.class";
public static final String ABORT_HANDLED =
"io.opentelemetry.javaagent.instrumentation.jaxrs2.filter.abort.handled";
private static final String INSTRUMENTATION_NAME = "io.opentelemetry.jaxrs-2.0-common";
private static final Instrumenter<HandlerData, Void> INSTRUMENTER;
static {
JaxrsCodeAttributesGetter codeAttributesGetter = new JaxrsCodeAttributesGetter();
INSTRUMENTER =
Instrumenter.<HandlerData, Void>builder(
GlobalOpenTelemetry.get(),
INSTRUMENTATION_NAME,
CodeSpanNameExtractor.create(codeAttributesGetter))
.addAttributesExtractor(CodeAttributesExtractor.create(codeAttributesGetter))
.setEnabled(ExperimentalConfig.get().controllerTelemetryEnabled())
.newInstrumenter();
}
public static Instrumenter<HandlerData, Void> instrumenter() {
return INSTRUMENTER;
}
private JaxrsSingletons() {}
}

13
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-common/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/RequestContextHelper.java
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@ -5,10 +5,9 @@
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import io.opentelemetry.api.trace.Span;
import io.opentelemetry.context.Context;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
import io.opentelemetry.instrumentation.api.instrumenter.LocalRootSpan;
import io.opentelemetry.instrumentation.api.instrumenter.http.HttpRouteHolder;
import io.opentelemetry.instrumentation.api.instrumenter.http.HttpRouteSource;
@ -17,13 +16,15 @@ import javax.ws.rs.container.ContainerRequestContext;
public final class RequestContextHelper {
public static Context createOrUpdateAbortSpan(
ContainerRequestContext requestContext, HandlerData handlerData) {
Instrumenter<HandlerData, Void> instrumenter,
ContainerRequestContext requestContext,
HandlerData handlerData) {
if (handlerData == null) {
return null;
}
requestContext.setProperty(JaxrsSingletons.ABORT_HANDLED, true);
requestContext.setProperty(JaxrsConstants.ABORT_HANDLED, true);
Context parentContext = Java8BytecodeBridge.currentContext();
Span serverSpan = LocalRootSpan.fromContextOrNull(parentContext);
Span currentSpan = Java8BytecodeBridge.spanFromContext(parentContext);
@ -40,11 +41,11 @@ public final class RequestContextHelper {
return null;
}
if (!instrumenter().shouldStart(parentContext, handlerData)) {
if (!instrumenter.shouldStart(parentContext, handlerData)) {
return null;
}
return instrumenter().start(parentContext, handlerData);
return instrumenter.start(parentContext, handlerData);
}
private RequestContextHelper() {}

6
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-cxf-3.2/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/CxfRequestContextInstrumentation.java
View File

@ -5,7 +5,7 @@
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.CxfSingletons.instrumenter;
import static net.bytebuddy.matcher.ElementMatchers.isMethod;
import static net.bytebuddy.matcher.ElementMatchers.named;
import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
@ -63,7 +63,7 @@ public class CxfRequestContextInstrumentation implements TypeInstrumentation {
@Local("otelContext") Context context,
@Local("otelScope") Scope scope) {
if (requestContext.getProperty(JaxrsSingletons.ABORT_HANDLED) != null
if (requestContext.getProperty(JaxrsConstants.ABORT_HANDLED) != null
|| !(requestContext instanceof ContainerRequestContext)) {
return;
}
@ -83,7 +83,7 @@ public class CxfRequestContextInstrumentation implements TypeInstrumentation {
handlerData = new HandlerData(resourceClass, method);
context =
RequestContextHelper.createOrUpdateAbortSpan(
(ContainerRequestContext) requestContext, handlerData);
instrumenter(), (ContainerRequestContext) requestContext, handlerData);
if (context != null) {
scope = context.makeCurrent();
}

20
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-cxf-3.2/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/CxfSingletons.java Normal file
View File

@ -0,0 +1,20 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
public final class CxfSingletons {
private static final Instrumenter<HandlerData, Void> INSTANCE =
JaxrsInstrumenterFactory.createInstrumenter("io.opentelemetry.cxf-jaxrs-3.2");
public static Instrumenter<HandlerData, Void> instrumenter() {
return INSTANCE;
}
private CxfSingletons() {}
}

7
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-jersey-2.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JerseyRequestContextInstrumentation.java
View File

@ -5,7 +5,7 @@
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JerseySingletons.instrumenter;
import io.opentelemetry.context.Context;
import io.opentelemetry.context.Scope;
@ -42,7 +42,7 @@ public class JerseyRequestContextInstrumentation extends AbstractRequestContextI
@Local("otelScope") Scope scope) {
UriInfo uriInfo = requestContext.getUriInfo();
if (requestContext.getProperty(JaxrsSingletons.ABORT_HANDLED) != null
if (requestContext.getProperty(JaxrsConstants.ABORT_HANDLED) != null
|| !(uriInfo instanceof ResourceInfo)) {
return;
}
@ -56,7 +56,8 @@ public class JerseyRequestContextInstrumentation extends AbstractRequestContextI
}
handlerData = new HandlerData(resourceClass, method);
context = RequestContextHelper.createOrUpdateAbortSpan(requestContext, handlerData);
context =
RequestContextHelper.createOrUpdateAbortSpan(instrumenter(), requestContext, handlerData);
if (context != null) {
scope = context.makeCurrent();
}

20
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-jersey-2.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/JerseySingletons.java Normal file
View File

@ -0,0 +1,20 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
public final class JerseySingletons {
private static final Instrumenter<HandlerData, Void> INSTANCE =
JaxrsInstrumenterFactory.createInstrumenter("io.opentelemetry.jersey-2.0");
public static Instrumenter<HandlerData, Void> instrumenter() {
return INSTANCE;
}
private JerseySingletons() {}
}

7
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-resteasy-3.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/Resteasy30RequestContextInstrumentation.java
View File

@ -5,7 +5,7 @@
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.Resteasy30Singletons.instrumenter;
import io.opentelemetry.context.Context;
import io.opentelemetry.context.Scope;
@ -41,7 +41,7 @@ public class Resteasy30RequestContextInstrumentation extends AbstractRequestCont
@Local("otelHandlerData") HandlerData handlerData,
@Local("otelContext") Context context,
@Local("otelScope") Scope scope) {
if (requestContext.getProperty(JaxrsSingletons.ABORT_HANDLED) != null
if (requestContext.getProperty(JaxrsConstants.ABORT_HANDLED) != null
|| !(requestContext instanceof PostMatchContainerRequestContext)) {
return;
}
@ -52,7 +52,8 @@ public class Resteasy30RequestContextInstrumentation extends AbstractRequestCont
Class<?> resourceClass = resourceMethodInvoker.getResourceClass();
handlerData = new HandlerData(resourceClass, method);
context = RequestContextHelper.createOrUpdateAbortSpan(requestContext, handlerData);
context =
RequestContextHelper.createOrUpdateAbortSpan(instrumenter(), requestContext, handlerData);
if (context != null) {
scope = context.makeCurrent();
}

20
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-resteasy-3.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/Resteasy30Singletons.java Normal file
View File

@ -0,0 +1,20 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
public final class Resteasy30Singletons {
private static final Instrumenter<HandlerData, Void> INSTANCE =
JaxrsInstrumenterFactory.createInstrumenter("io.opentelemetry.resteasy-3.0");
public static Instrumenter<HandlerData, Void> instrumenter() {
return INSTANCE;
}
private Resteasy30Singletons() {}
}

7
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-resteasy-3.1/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/Resteasy31RequestContextInstrumentation.java
View File

@ -5,7 +5,7 @@
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.JaxrsSingletons.instrumenter;
import static io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0.Resteasy31Singletons.instrumenter;
import io.opentelemetry.context.Context;
import io.opentelemetry.context.Scope;
@ -41,7 +41,7 @@ public class Resteasy31RequestContextInstrumentation extends AbstractRequestCont
@Local("otelHandlerData") HandlerData handlerData,
@Local("otelContext") Context context,
@Local("otelScope") Scope scope) {
if (requestContext.getProperty(JaxrsSingletons.ABORT_HANDLED) != null
if (requestContext.getProperty(JaxrsConstants.ABORT_HANDLED) != null
|| !(requestContext instanceof PostMatchContainerRequestContext)) {
return;
}
@ -52,7 +52,8 @@ public class Resteasy31RequestContextInstrumentation extends AbstractRequestCont
Class<?> resourceClass = resourceMethodInvoker.getResourceClass();
handlerData = new HandlerData(resourceClass, method);
context = RequestContextHelper.createOrUpdateAbortSpan(requestContext, handlerData);
context =
RequestContextHelper.createOrUpdateAbortSpan(instrumenter(), requestContext, handlerData);
if (context != null) {
scope = context.makeCurrent();
}

20
instrumentation/jaxrs/jaxrs-2.0/jaxrs-2.0-resteasy-3.1/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxrs/v2_0/Resteasy31Singletons.java Normal file
View File

@ -0,0 +1,20 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxrs.v2_0;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
public final class Resteasy31Singletons {
private static final Instrumenter<HandlerData, Void> INSTANCE =
JaxrsInstrumenterFactory.createInstrumenter("io.opentelemetry.resteasy-3.1");
public static Instrumenter<HandlerData, Void> instrumenter() {
return INSTANCE;
}
private Resteasy31Singletons() {}
}

22
instrumentation/jaxws/jaxws-2.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/jaxws/v2_0/WebServiceProviderSingletons.java
View File

@ -1,22 +0,0 @@
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
package io.opentelemetry.javaagent.instrumentation.jaxws.v2_0;
import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
import io.opentelemetry.javaagent.instrumentation.jaxws.common.JaxWsInstrumenterFactory;
import io.opentelemetry.javaagent.instrumentation.jaxws.common.JaxWsRequest;
public final class WebServiceProviderSingletons {
private static final Instrumenter<JaxWsRequest, Void> INSTANCE =
JaxWsInstrumenterFactory.createInstrumenter("io.opentelemetry.jaxws-2.0");
public static Instrumenter<JaxWsRequest, Void> instrumenter() {
return INSTANCE;
}
private WebServiceProviderSingletons() {}
}