org.springframework.scheduling.support.MethodInvokingRunnable Maven / Gradle / Ivy
/*
* Copyright 2002-2006 the original author or authors.
*
* 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 org.springframework.scheduling.support;
import java.lang.reflect.InvocationTargetException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.support.ArgumentConvertingMethodInvoker;
import org.springframework.util.ClassUtils;
/**
* Adapter that implements the Runnable interface as a configurable
* method invocation based on Spring's MethodInvoker.
*
* Derives from ArgumentConvertingMethodInvoker, inheriting common
* configuration properties from MethodInvoker.
*
*
Useful to generically encapsulate a method invocation as timer task for
* java.util.Timer, in combination with a DelegatingTimerTask adapter.
* Can also be used with JDK 1.5's java.util.concurrent.Executor
* abstraction, which works with plain Runnables.
*
*
Extended by Spring's MethodInvokingTimerTaskFactoryBean adapter
* for java.util.TimerTask. Note that you can populate a
* ScheduledTimerTask object with a plain MethodInvokingRunnable instance
* as well, which will automatically get wrapped with a DelegatingTimerTask.
*
* @author Juergen Hoeller
* @since 1.2.4
* @see org.springframework.util.MethodInvoker
* @see org.springframework.beans.support.ArgumentConvertingMethodInvoker
* @see org.springframework.scheduling.timer.DelegatingTimerTask
* @see org.springframework.scheduling.timer.ScheduledTimerTask#setRunnable
* @see org.springframework.scheduling.timer.MethodInvokingTimerTaskFactoryBean
* @see java.util.Timer
* @see java.util.concurrent.Executor#execute(Runnable)
*/
public class MethodInvokingRunnable extends ArgumentConvertingMethodInvoker
implements Runnable, BeanClassLoaderAware, InitializingBean {
protected final Log logger = LogFactory.getLog(getClass());
private ClassLoader beanClassLoader = ClassUtils.getDefaultClassLoader();
public void setBeanClassLoader(ClassLoader classLoader) {
this.beanClassLoader = classLoader;
}
protected Class resolveClassName(String className) throws ClassNotFoundException {
return ClassUtils.forName(className, this.beanClassLoader);
}
public void afterPropertiesSet() throws ClassNotFoundException, NoSuchMethodException {
prepare();
}
public void run() {
try {
invoke();
}
catch (InvocationTargetException ex) {
logger.error(getInvocationFailureMessage(), ex);
// Do not throw exception, else the main loop of the Timer will stop!
}
catch (Throwable ex) {
logger.error(getInvocationFailureMessage(), ex);
// Do not throw exception, else the main loop of the Timer will stop!
}
}
protected String getInvocationFailureMessage() {
return "Invocation of method '" + getTargetMethod() +
"' on target object [" + getTargetObject() + "] failed";
}
}