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feature: support after event processing of method
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112 changes: 112 additions & 0 deletions
112
...ox/src/main/java/com/alibaba/chaosblade/exec/bootstrap/jvmsandbox/AfterEventListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| /* | ||
| * Copyright 1999-2019 Alibaba Group Holding Ltd. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
|
||
| package com.alibaba.chaosblade.exec.bootstrap.jvmsandbox; | ||
|
|
||
| import java.lang.reflect.Method; | ||
| import java.util.Arrays; | ||
|
|
||
| import com.alibaba.chaosblade.exec.common.aop.Plugin; | ||
| import com.alibaba.chaosblade.exec.common.exception.InterruptProcessException; | ||
| import com.alibaba.chaosblade.exec.common.exception.InterruptProcessException.State; | ||
| import com.alibaba.chaosblade.exec.common.util.ReflectUtil; | ||
| import com.alibaba.jvm.sandbox.api.ProcessControlException; | ||
| import com.alibaba.jvm.sandbox.api.event.BeforeEvent; | ||
| import com.alibaba.jvm.sandbox.api.event.Event; | ||
| import com.alibaba.jvm.sandbox.api.event.ReturnEvent; | ||
| import com.alibaba.jvm.sandbox.api.listener.EventListener; | ||
|
|
||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| /** | ||
| * @author Changjun Xiao | ||
| */ | ||
| public class AfterEventListener implements EventListener { | ||
| private static final Logger LOGGER = LoggerFactory.getLogger(AfterEventListener.class); | ||
|
|
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| private Plugin plugin; | ||
| private ThreadLocal<BeforeEventBean> beforeEventCache; | ||
|
|
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| public AfterEventListener(Plugin plugin) { | ||
| this.plugin = plugin; | ||
| this.beforeEventCache = new ThreadLocal<BeforeEventBean>(); | ||
| } | ||
|
|
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| @Override | ||
| public void onEvent(Event event) throws Throwable { | ||
| if (event instanceof BeforeEvent) { | ||
| BeforeEvent beforeEvent = (BeforeEvent)event; | ||
| BeforeEventBean beforeEventBean = new BeforeEventBean( | ||
| beforeEvent.javaClassLoader, | ||
| beforeEvent.target, | ||
| beforeEvent.javaClassName, | ||
| beforeEvent.javaMethodName, | ||
| beforeEvent.javaMethodDesc, | ||
| beforeEvent.argumentArray); | ||
| beforeEventCache.set(beforeEventBean); | ||
| return; | ||
| } | ||
| if (!(event instanceof ReturnEvent)) { | ||
| beforeEventCache.remove(); | ||
| return; | ||
| } | ||
| BeforeEventBean beforeEventBean = beforeEventCache.get(); | ||
| if (beforeEventBean == null) { | ||
| return; | ||
| } | ||
| ReturnEvent returnEvent = (ReturnEvent)event; | ||
| // get the method class | ||
| Class clazz; | ||
| if (beforeEventBean.getObject() == null) { | ||
| clazz = beforeEventBean.getClassLoader().loadClass(beforeEventBean.getClassName()); | ||
| } else { | ||
| clazz = beforeEventBean.getObject().getClass(); | ||
| } | ||
| Method method; | ||
| try { | ||
| method = ReflectUtil.getMethod(clazz, beforeEventBean.getMethodDesc(), beforeEventBean.getMethodName()); | ||
| } catch (NoSuchMethodException e) { | ||
| LOGGER.warn("get method by reflection exception for after event. " | ||
| + "class: {}, method: {}, arguments: {}, desc: {}", | ||
| clazz, beforeEventBean.getMethodName(), Arrays.toString(beforeEventBean.getArgumentArray()), | ||
| beforeEventBean.getMethodDesc(), e); | ||
| beforeEventCache.remove(); | ||
| return; | ||
| } | ||
|
|
||
| try { | ||
| // do enhancer | ||
| plugin.getEnhancer().afterAdvice(plugin.getModelSpec().getTarget(), beforeEventBean.getClassLoader(), | ||
| beforeEventBean.getClassName(), beforeEventBean.getObject(), method, beforeEventBean.getArgumentArray(), | ||
| returnEvent.object); | ||
| } catch (Exception e) { | ||
| // handle return or throw exception | ||
| if (e instanceof InterruptProcessException) { | ||
| InterruptProcessException exception = (InterruptProcessException)e; | ||
| if (exception.getState() == State.RETURN_IMMEDIATELY) { | ||
| ProcessControlException.throwReturnImmediately(exception.getResponse()); | ||
| } else if (exception.getState() == State.THROWS_IMMEDIATELY) { | ||
| ProcessControlException.throwThrowsImmediately((Throwable)exception.getResponse()); | ||
| } | ||
| } else { | ||
| throw e; | ||
| } | ||
| } finally { | ||
| beforeEventCache.remove(); | ||
| } | ||
| } | ||
| } |
64 changes: 64 additions & 0 deletions
64
...ndbox/src/main/java/com/alibaba/chaosblade/exec/bootstrap/jvmsandbox/BeforeEventBean.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| /* | ||
| * Copyright 1999-2019 Alibaba Group Holding Ltd. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
|
||
| package com.alibaba.chaosblade.exec.bootstrap.jvmsandbox; | ||
|
|
||
| /** | ||
| * @author Changjun Xiao | ||
| */ | ||
| public class BeforeEventBean { | ||
|
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| private ClassLoader classLoader; | ||
| private Object object; | ||
| private String className; | ||
| private String methodName; | ||
| private String methodDesc; | ||
| private Object[] argumentArray; | ||
|
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| public BeforeEventBean(ClassLoader classLoader, Object object, String className, String methodName, | ||
| String methodDesc, Object[] argumentArray) { | ||
| this.classLoader = classLoader; | ||
| this.object = object; | ||
| this.className = className; | ||
| this.methodName = methodName; | ||
| this.methodDesc = methodDesc; | ||
| this.argumentArray = argumentArray; | ||
| } | ||
|
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| public ClassLoader getClassLoader() { | ||
| return classLoader; | ||
| } | ||
|
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| public Object getObject() { | ||
| return object; | ||
| } | ||
|
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| public String getClassName() { | ||
| return className; | ||
| } | ||
|
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| public String getMethodName() { | ||
| return methodName; | ||
| } | ||
|
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| public String getMethodDesc() { | ||
| return methodDesc; | ||
| } | ||
|
|
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| public Object[] getArgumentArray() { | ||
| return argumentArray; | ||
| } | ||
| } |
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52 changes: 52 additions & 0 deletions
52
...blade-exec-common/src/main/java/com/alibaba/chaosblade/exec/common/aop/AfterEnhancer.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /* | ||
| * Copyright 1999-2019 Alibaba Group Holding Ltd. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
|
||
| package com.alibaba.chaosblade.exec.common.aop; | ||
|
|
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| import java.lang.reflect.Method; | ||
|
|
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| import com.alibaba.chaosblade.exec.common.center.ManagerFactory; | ||
| import com.alibaba.chaosblade.exec.common.injection.Injector; | ||
|
|
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| /** | ||
| * @author Changjun Xiao | ||
| */ | ||
| public abstract class AfterEnhancer implements Enhancer { | ||
|
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| @Override | ||
| public void beforeAdvice(String targetName, ClassLoader classLoader, String className, Object object, Method method, | ||
| Object[] methodArguments) throws Exception { | ||
| return; | ||
| } | ||
|
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| @Override | ||
| public void afterAdvice(String targetName, ClassLoader classLoader, String className, Object object, | ||
| Method method, Object[] methodArguments, Object returnObject) throws Exception { | ||
| if (!ManagerFactory.getStatusManager().expExists(targetName)) { | ||
| return; | ||
| } | ||
| EnhancerModel model = doAfterAdvice(classLoader, className, object, method, methodArguments, returnObject); | ||
| if (model == null) { | ||
| return; | ||
| } | ||
| model.setTarget(targetName).setMethod(method).setObject(object).setMethodArguments(methodArguments); | ||
| Injector.inject(model); | ||
| } | ||
|
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| public abstract EnhancerModel doAfterAdvice(ClassLoader classLoader, String className, | ||
| Object object, Method method, Object[] methodArguments, | ||
| Object returnObject) throws Exception; | ||
| } |
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