/*
* Copyright 2008 the original author or authors.
*
* 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 de.hybris.yfaces.util.myfaces;
import javax.el.ELResolver;
import javax.faces.application.Application;
import javax.faces.application.ApplicationFactory;
import org.apache.myfaces.application.ApplicationImpl;
import de.hybris.yfaces.YFacesELContextListener;
import de.hybris.yfaces.YFacesELResolver;
import de.hybris.yfaces.YFacesException;
/**
* A custom {@link ApplicationFactory} implementation which creates a {@link YFacesApplication}.<br/>
* <br/>
* Note:<br/>
* JSF provides no way to configure a custom {@link Application} class but a
* {@link ApplicationFactory} instead. <br/>
*
* @author Denny.Strietzbaum
*
*/
public class YFacesApplicationFactory extends ApplicationFactory {
/**
* Own {@link Application} implementation which uses an {@link YFacesELResolver} instead of the
* JSF created {@link ELResolver}.<br/>
* <br/>
* For easier handling this implementation depends on the myfaces implementation<br/>
* Whenever an independent solution is needed the source {@link Application} instance must be
* wrapped. <br/>
*
* @author Denny.Strietzbaum
*/
public static class YFacesApplication extends ApplicationImpl {
private ELResolver resolver = null;
/**
* Constructor. Adds an {@link YFacesELContextListener}.
*/
public YFacesApplication() {
this.addELContextListener(new YFacesELContextListener());
}
/*
* (non-Javadoc)
*
* @see org.apache.myfaces.application.ApplicationImpl#getELResolver()
*/
@Override
public ELResolver getELResolver() {
if (this.resolver == null) {
this.resolver = new YFacesELResolver(super.getELResolver());
}
return this.resolver;
}
}
/**
* Constructor.<br/>
* <br/>
* Following is taken out from the myfaces ApplicationFactoryImpl javadoc:<br/>
* <br/>
* Application is thread-safe (see Application javadoc)
* "Application represents a per-web-application singleton object..." FactoryFinder has a
* ClassLoader-Factory Map. Since each webapp has it's own ClassLoader, each webapp will have
* it's own private factory instances.
*/
public YFacesApplicationFactory() {
this.application = new YFacesApplication();
}
private Application application = null;
/*
* (non-Javadoc)
*
* @see javax.faces.application.ApplicationFactory#getApplication()
*/
@Override
public Application getApplication() {
return this.application;
}
/*
* (non-Javadoc)
*
* @see javax.faces.application.ApplicationFactory#setApplication(javax.faces
* .application.Application)
*/
@Override
public void setApplication(Application application) {
throw new YFacesException("Can't set another instance of " + Application.class.getName());
}
}