/*
* Copyright 2005-2006 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 org.strecks.navigate.factory;
import org.apache.struts.action.ActionForward;
import org.strecks.exceptions.ApplicationConfigurationException;
import org.strecks.navigate.NavigationHandler;
import org.strecks.navigate.NavigationHandlerFactory;
import org.strecks.navigate.handler.ActionForwardNavigationHandler;
import org.strecks.navigate.handler.MappingNavigationHandler;
import org.strecks.navigate.handler.PageNavigationHandler;
import org.strecks.navigate.handler.ViewAdapterNavigationHandler;
import org.strecks.page.Page;
import org.strecks.view.ViewAdapter;
/**
* Implementation of <code>NavigationHandlerFactory</code>
* @author Phil Zoio
*/
public class DefaultNavigationHandlerFactory implements NavigationHandlerFactory
{
/**
* If the return type is an <code>ActionForward</code>, returns
* <code>ActionForwardNavigationHandler</code>, if a <code>String</code>, returns
* <code>MappingNavigationHandler</code>, and if a <code>Page</code>, returns
* <code>PageNavigationHandler</code>
*/
public NavigationHandler getNavigationHandler(String beanClassName, Class returnType)
{
if (ActionForward.class.isAssignableFrom(returnType))
{
return new ActionForwardNavigationHandler();
}
else if (String.class.isAssignableFrom(returnType))
{
return new MappingNavigationHandler();
}
else if (Page.class.isAssignableFrom(returnType))
{
return new PageNavigationHandler();
}
else if (ViewAdapter.class.isAssignableFrom(returnType))
{
return new ViewAdapterNavigationHandler();
}
else
{
throw new ApplicationConfigurationException("Unsupported return type " + returnType.getClass().getName()
+ " for method with @Navigation annotation in class " + beanClassName);
}
}
}