/*
* Copyright 2005 Joe Walker
*
* 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.directwebremoting.impl;
import java.util.Collection;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.directwebremoting.Container;
import org.directwebremoting.extend.InitializingBean;
import org.directwebremoting.util.LocalUtil;
/**
* An implementation of some of the simpler methods from {@link Container}
* This class has nothing whatsoever to do with
* {@link org.directwebremoting.extend.ContainerAbstraction}.
* @author Joe Walker [joe at getahead dot ltd dot uk]
*/
public abstract class AbstractContainer implements Container
{
/**
* Used after setup to call {@link InitializingBean#afterContainerSetup(Container)}
* on all the contained beans.
*/
protected void callInitializingBeans()
{
callInitializingBeans(getBeanNames());
}
/**
* Call {@link InitializingBean#afterContainerSetup(Container)} on the named
* beans
* @param beanNames The beans to setup.
*/
protected void callInitializingBeans(Collection<String> beanNames)
{
for (String name : beanNames)
{
Object bean = getBean(name);
if (bean instanceof InitializingBean)
{
InitializingBean startMeUp = (InitializingBean) bean;
startMeUp.afterContainerSetup(this);
}
}
}
/* (non-Javadoc)
* @see org.directwebremoting.Container#getBean(java.lang.Class)
*/
public <T> T getBean(Class<T> type)
{
Object bean = getBean(LocalUtil.originalDwrClassName(type.getName()));
try
{
return type.cast(bean);
}
catch (ClassCastException ex)
{
log.error("ClassCastException: Asked for implementation of " + type.getName() + " but the container has a type " + bean.getClass().getName());
log.error(" - calling toString() on returned bean gives: " + bean);
throw ex;
}
}
/**
* The log stream
*/
private static final Log log = LogFactory.getLog(AbstractContainer.class);
}