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[Feature] Support Tracing for GlobalFilter and GatewayFilter in Gatew…
…ay (#736)
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94 changes: 94 additions & 0 deletions
94
.../org/apache/skywalking/apm/plugin/spring/cloud/gateway/v20x/GatewayFilterInterceptor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| package org.apache.skywalking.apm.plugin.spring.cloud.gateway.v20x; | ||
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| import org.apache.skywalking.apm.agent.core.context.ContextManager; | ||
| import org.apache.skywalking.apm.agent.core.context.ContextSnapshot; | ||
| import org.apache.skywalking.apm.agent.core.context.trace.AbstractSpan; | ||
| import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance; | ||
| import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceMethodsAroundInterceptor; | ||
| import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult; | ||
| import org.springframework.web.server.ServerWebExchange; | ||
| import org.springframework.web.server.ServerWebExchangeDecorator; | ||
| import org.springframework.web.server.adapter.DefaultServerWebExchange; | ||
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| import java.lang.reflect.Method; | ||
| import java.util.concurrent.atomic.AtomicInteger; | ||
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| import static org.apache.skywalking.apm.network.trace.component.ComponentsDefine.SPRING_CLOUD_GATEWAY; | ||
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| public class GatewayFilterInterceptor implements InstanceMethodsAroundInterceptor { | ||
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| private static final ThreadLocal<AtomicInteger> STACK_DEEP = ThreadLocal.withInitial(() -> new AtomicInteger(0)); | ||
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| @Override | ||
| public void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, | ||
| MethodInterceptResult result) throws Throwable { | ||
| if (isEntry()) { | ||
| ServerWebExchange exchange = (ServerWebExchange) allArguments[0]; | ||
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| EnhancedInstance enhancedInstance = getInstance(exchange); | ||
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| AbstractSpan span = ContextManager.createLocalSpan("SpringCloudGateway/GatewayFilter"); | ||
| if (enhancedInstance != null && enhancedInstance.getSkyWalkingDynamicField() != null) { | ||
| ContextManager.continued((ContextSnapshot) enhancedInstance.getSkyWalkingDynamicField()); | ||
| } | ||
| span.setComponent(SPRING_CLOUD_GATEWAY); | ||
| } | ||
| } | ||
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| public static EnhancedInstance getInstance(Object o) { | ||
| EnhancedInstance instance = null; | ||
| if (o instanceof DefaultServerWebExchange) { | ||
| instance = (EnhancedInstance) o; | ||
| } else if (o instanceof ServerWebExchangeDecorator) { | ||
| ServerWebExchange delegate = ((ServerWebExchangeDecorator) o).getDelegate(); | ||
| return getInstance(delegate); | ||
| } | ||
| return instance; | ||
| } | ||
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| @Override | ||
| public Object afterMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, | ||
| Object ret) throws Throwable { | ||
| if (isExit()) { | ||
| if (ContextManager.isActive()) { | ||
| ContextManager.stopSpan(); | ||
| } | ||
| } | ||
| return ret; | ||
| } | ||
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| @Override | ||
| public void handleMethodException(EnhancedInstance objInst, Method method, Object[] allArguments, | ||
| Class<?>[] argumentsTypes, Throwable t) { | ||
| ContextManager.activeSpan().log(t); | ||
| } | ||
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| private boolean isEntry() { | ||
| return STACK_DEEP.get().getAndIncrement() == 0; | ||
| } | ||
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| private boolean isExit() { | ||
| boolean isExit = STACK_DEEP.get().decrementAndGet() == 0; | ||
| if (isExit) { | ||
| STACK_DEEP.remove(); | ||
| } | ||
| return isExit; | ||
| } | ||
| } |
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64 changes: 64 additions & 0 deletions
64
.../skywalking/apm/plugin/spring/cloud/gateway/v20x/define/GatewayFilterInstrumentation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package org.apache.skywalking.apm.plugin.spring.cloud.gateway.v20x.define; | ||
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| import net.bytebuddy.description.method.MethodDescription; | ||
| import net.bytebuddy.matcher.ElementMatcher; | ||
| import org.apache.skywalking.apm.agent.core.plugin.interceptor.ConstructorInterceptPoint; | ||
| import org.apache.skywalking.apm.agent.core.plugin.interceptor.InstanceMethodsInterceptPoint; | ||
| import org.apache.skywalking.apm.agent.core.plugin.match.ClassMatch; | ||
| import org.apache.skywalking.apm.agent.core.plugin.match.HierarchyMatch; | ||
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| import static net.bytebuddy.matcher.ElementMatchers.named; | ||
| import static org.apache.skywalking.apm.agent.core.plugin.bytebuddy.ArgumentTypeNameMatch.takesArgumentWithType; | ||
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| public class GatewayFilterInstrumentation extends AbstractGateway200EnhancePluginDefine { | ||
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| @Override | ||
| protected ClassMatch enhanceClass() { | ||
| return HierarchyMatch.byHierarchyMatch(Constants.INTERCEPT_CLASS_GATEWAY_FILTER); | ||
| } | ||
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| @Override | ||
| public ConstructorInterceptPoint[] getConstructorsInterceptPoints() { | ||
| return new ConstructorInterceptPoint[0]; | ||
| } | ||
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| @Override | ||
| public InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() { | ||
| return new InstanceMethodsInterceptPoint[] { | ||
| new InstanceMethodsInterceptPoint() { | ||
| @Override | ||
| public ElementMatcher<MethodDescription> getMethodsMatcher() { | ||
| return named("filter").and( | ||
| takesArgumentWithType(0, "org.springframework.web.server.ServerWebExchange")); | ||
| } | ||
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| @Override | ||
| public String getMethodsInterceptor() { | ||
| return Constants.GATEWAY_FILTER_INTERCEPTOR; | ||
| } | ||
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| @Override | ||
| public boolean isOverrideArgs() { | ||
| return true; | ||
| } | ||
| } | ||
| }; | ||
| } | ||
| } |
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