/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*
* $Header:$
*/
package org.apache.beehive.controls.runtime.bean;
import java.beans.beancontext.BeanContextServices;
import java.beans.beancontext.BeanContextServiceProvider;
import java.util.Iterator;
import java.util.Collections;
import org.apache.beehive.controls.spi.context.ControlBeanContextFactory;
import org.apache.beehive.controls.runtime.webcontext.ControlBeanContextServicesSupport;
/**
* <p>
* This class acts as a ControlBeanContextFactoryProvider that exposes this factory as a contextual service
* from inside of a ControlBeanContext.
* </p>
* <p>
* <b>Note:</b> This class, the service provider, and the contextual service it provides are considerd an implementation
* detail and <b>should not</b> be used from user code.
* </p>
*/
public class WebContextFactoryProvider
implements BeanContextServiceProvider {
private static final WebContextFactoryProvider theProvider = new WebContextFactoryProvider();
private static final WebControlBeanContextFactory theFactory = new WebControlBeanContextFactory();
public static final ControlBeanContext.BeanContextServicesFactory WEB_CONTEXT_BCS_FACTORY =
new WebContextBeanContextServicesFactory();
public static BeanContextServiceProvider getProvider() {
return theProvider;
}
private WebContextFactoryProvider() {
}
public Object getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector) {
return theFactory;
}
public void releaseService(BeanContextServices bcs, Object requestor, Object service) {
}
public Iterator getCurrentServiceSelectors(BeanContextServices bcs, Class serviceClass) {
return Collections.EMPTY_LIST.iterator();
}
/**
* <p>
* {@link ControlBeanContextFactory} implementation that provides a {@link ControlBeanContext} object
* used for web-tier control containment.
* </p>
* <p>
* <b>Note:</b> This factory is considerd an implementation detail and <b>should not</b> be referenced from user code.
* </p>
*/
/*package*/ static class WebControlBeanContextFactory
implements ControlBeanContextFactory {
public org.apache.beehive.controls.api.context.ControlBeanContext instantiate
(org.apache.beehive.controls.api.bean.ControlBean controlBean) {
if(!(controlBean instanceof ControlBean))
throw new IllegalArgumentException("The ControlBean of type \"" +
controlBean.getClass().getName() +
"\" is unsupported. The ControlBean must extend " +
ControlBean.class.getName());
ControlBean runtimeControlBean = (ControlBean)controlBean;
return new ControlBeanContext(runtimeControlBean, WEB_CONTEXT_BCS_FACTORY);
}
}
/*package*/ static class WebContextBeanContextServicesFactory
extends ControlBeanContext.BeanContextServicesFactory {
protected BeanContextServices instantiate(ControlBeanContext controlBeanContext) {
return new ControlBeanContextServicesSupport(controlBeanContext);
/* The java implementation of the BeanContext support classes,
not currently used by Beehive due to performance issues.
return new java.beans.beancontext.BeanContextServicesSupport(controlBeanContext);
*/
}
}
}