/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.portal.messaging.async;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.messaging.MessageBusUtil;
import com.liferay.portal.kernel.messaging.async.Async;
import com.liferay.portal.kernel.transaction.TransactionCommitCallbackUtil;
import com.liferay.portal.spring.aop.AnnotationChainableMethodAdvice;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.concurrent.Callable;
import org.aopalliance.intercept.MethodInvocation;
/**
* @author Shuyang Zhou
* @author Brian Wing Shun Chan
*/
public class AsyncAdvice extends AnnotationChainableMethodAdvice<Async> {
@Override
public Object before(final MethodInvocation methodInvocation)
throws Throwable {
if (AsyncInvokeThreadLocal.isEnabled()) {
return null;
}
Async async = findAnnotation(methodInvocation);
if (async == _nullAsync) {
return null;
}
Method method = methodInvocation.getMethod();
if (method.getReturnType() != void.class) {
if (_log.isWarnEnabled()) {
_log.warn(
"Async annotation on method " + method.getName() +
" does not return void");
}
return null;
}
String destinationName = null;
if ((_destinationNames != null) && !_destinationNames.isEmpty()) {
Object thisObject = methodInvocation.getThis();
destinationName = _destinationNames.get(thisObject.getClass());
}
if (destinationName == null) {
destinationName = _defaultDestinationName;
}
final String callbackDestinationName = destinationName;
TransactionCommitCallbackUtil.registerCallback(
new Callable<Void>() {
@Override
public Void call() throws Exception {
MessageBusUtil.sendMessage(
callbackDestinationName,
new AsyncProcessCallable(methodInvocation));
return null;
}
});
return nullResult;
}
public String getDefaultDestinationName() {
return _defaultDestinationName;
}
@Override
public Async getNullAnnotation() {
return _nullAsync;
}
public void setDefaultDestinationName(String defaultDestinationName) {
_defaultDestinationName = defaultDestinationName;
}
public void setDestinationNames(Map<Class<?>, String> destinationNames) {
_destinationNames = destinationNames;
}
private static final Log _log = LogFactoryUtil.getLog(AsyncAdvice.class);
private static final Async _nullAsync = new Async() {
@Override
public Class<? extends Annotation> annotationType() {
return Async.class;
}
};
private String _defaultDestinationName;
private Map<Class<?>, String> _destinationNames;
}