/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.ejb.inject;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.Set;
import javax.ejb.Timer;
import javax.enterprise.context.Dependent;
import javax.enterprise.inject.spi.AnnotatedMethod;
import javax.enterprise.inject.spi.AnnotatedType;
import com.caucho.config.ConfigException;
import com.caucho.config.inject.ManagedBeanImpl;
import com.caucho.config.inject.ScheduleBean;
import com.caucho.config.timer.ScheduleIntrospector;
import com.caucho.config.timer.TimeoutCaller;
import com.caucho.config.timer.TimerTask;
import com.caucho.ejb.gen.SessionGenerator;
import com.caucho.ejb.session.StatelessContext;
import com.caucho.ejb.session.StatelessManager;
import com.caucho.inject.Module;
import com.caucho.util.L10N;
/**
* Internal implementation for a Bean
*/
@Module
public class StatelessBeanImpl<X,T>
extends SessionBeanImpl<X,T>
implements ScheduleBean
{
private static final L10N L = new L10N(StatelessBeanImpl.class);
private LinkedHashSet<Annotation> _qualifiers
= new LinkedHashSet<Annotation>();
private final StatelessManager<X> _manager;
public StatelessBeanImpl(StatelessManager<X> manager,
ManagedBeanImpl<X> bean,
Class<T> api,
Set<Type> types,
StatelessContext<X,T> context,
AnnotatedType<X> extAnnType)
{
super(context, bean, types, extAnnType);
_manager = manager;
_qualifiers.addAll(bean.getQualifiers());
Class<?> scopeType = bean.getScope();
if (scopeType != null
&& ! scopeType.equals(Dependent.class)) {
throw new ConfigException(L.l("@{0} is an invalid scope for @Stateless session bean {1} because stateless session beans need @Dependent scope",
scopeType.getName(), getBeanClass().getName()));
}
getBean().setPassivating(true);
}
@Override
public Set<Annotation> getQualifiers()
{
return _qualifiers;
}
@Override
public void scheduleTimers(Object value)
{
ScheduleIntrospector introspector = new StatelessScheduleIntrospector();
TimeoutCaller timeoutCaller = new StatelessTimeoutCaller(value);
ArrayList<TimerTask> taskList
= introspector.introspect(timeoutCaller, getBean().getAnnotatedType());
if (taskList != null) {
for (TimerTask task : taskList) {
task.start();
}
}
}
private class StatelessScheduleIntrospector extends ScheduleIntrospector
{
@Override
protected Method getScheduledMethod(AnnotatedMethod<?> method)
{
Method javaMethod = method.getJavaMember();
String methodName = javaMethod.getName();
if (! SessionGenerator.isBusinessMethod(javaMethod))
methodName = "__caucho_schedule_" + javaMethod.getName();
Class<?> proxyClass = _manager.getProxyImplClass();
try {
Method scheduleMethod
= proxyClass.getMethod(methodName, javaMethod.getParameterTypes());
return scheduleMethod;
} catch (Exception e) {
throw new ConfigException(L.l("Cannot find method {0} on generated class {1}.",
methodName, proxyClass.getName()),
e);
}
}
}
private class StatelessTimeoutCaller implements TimeoutCaller {
private final Object _bean;
/**
* @param bean
*/
public StatelessTimeoutCaller(Object bean)
{
_bean = bean;
}
public void timeout(Method method, Timer timer)
throws InvocationTargetException, IllegalAccessException
{
method.invoke(_bean, timer);
}
public void timeout(Method method)
throws InvocationTargetException, IllegalAccessException
{
method.invoke(_bean);
}
}
}