001
014
015 package com.liferay.portal.messaging.async;
016
017 import com.liferay.portal.kernel.log.Log;
018 import com.liferay.portal.kernel.log.LogFactoryUtil;
019 import com.liferay.portal.kernel.messaging.MessageBusUtil;
020 import com.liferay.portal.kernel.messaging.async.Async;
021 import com.liferay.portal.spring.aop.AnnotationChainableMethodAdvice;
022
023 import java.lang.annotation.Annotation;
024 import java.lang.reflect.Method;
025
026 import java.util.Map;
027
028 import org.aopalliance.intercept.MethodInvocation;
029
030
034 public class AsyncAdvice extends AnnotationChainableMethodAdvice<Async> {
035
036 @Override
037 public Object before(final MethodInvocation methodInvocation)
038 throws Throwable {
039
040 Async async = findAnnotation(methodInvocation);
041
042 if (async == _nullAsync) {
043 return null;
044 }
045
046 Method method = methodInvocation.getMethod();
047
048 if (method.getReturnType() != void.class) {
049 if (_log.isWarnEnabled()) {
050 _log.warn(
051 "Async annotation on method " + method.getName() +
052 " does not return void");
053 }
054
055 return null;
056 }
057
058 String destinationName = null;
059
060 if ((_destinationNames != null) && !_destinationNames.isEmpty()) {
061 Object thisObject = methodInvocation.getThis();
062
063 destinationName = _destinationNames.get(thisObject.getClass());
064 }
065
066 if (destinationName == null) {
067 destinationName = _defaultDestinationName;
068 }
069
070 MessageBusUtil.sendMessage(
071 destinationName,
072 new Runnable() {
073
074 @Override
075 public void run() {
076 try {
077 nextMethodInterceptor.invoke(methodInvocation);
078 }
079 catch (Throwable t) {
080 throw new RuntimeException(t);
081 }
082 }
083
084 @Override
085 public String toString() {
086 return methodInvocation.toString();
087 }
088
089 });
090
091 return nullResult;
092 }
093
094 public String getDefaultDestinationName() {
095 return _defaultDestinationName;
096 }
097
098 @Override
099 public Async getNullAnnotation() {
100 return _nullAsync;
101 }
102
103 public void setDefaultDestinationName(String defaultDestinationName) {
104 _defaultDestinationName = defaultDestinationName;
105 }
106
107 public void setDestinationNames(Map<Class<?>, String> destinationNames) {
108 _destinationNames = destinationNames;
109 }
110
111 private static Log _log = LogFactoryUtil.getLog(AsyncAdvice.class);
112
113 private static Async _nullAsync =
114 new Async() {
115
116 @Override
117 public Class<? extends Annotation> annotationType() {
118 return Async.class;
119 }
120
121 };
122
123 private String _defaultDestinationName;
124 private Map<Class<?>, String> _destinationNames;
125
126 }