/*
* Copyright 2004, 2005, 2006 Odysseus Software GmbH
*
* 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.odysseus.calyxo.struts.misc;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.ActionMessages;
import de.odysseus.calyxo.base.ModuleContext;
import de.odysseus.calyxo.base.access.DynamicMapAccessor;
/**
* author Christoph Beck
*/
public class MessagesAccessor extends DynamicMapAccessor {
private ModuleContext module;
/**
*
*/
public MessagesAccessor(ModuleContext module) {
super();
this.module = module;
}
/* (non-Javadoc)
* @see de.odysseus.calyxo.base.access.DynamicMapAccessor#get(javax.servlet.http.HttpServletRequest, java.lang.Object)
*/
protected Object get(HttpServletRequest request, Object key) {
String attr = key.toString();
ActionMessages messages = (ActionMessages)request.getAttribute(attr);
if (messages == null) {
HttpSession session = request.getSession(false);
if (session != null) {
messages = (ActionMessages)session.getAttribute(attr);
}
if (messages == null) {
messages = (ActionMessages)module.getServletContext().getAttribute(attr);
}
}
return messages == null || messages.size() == 0 ? null : messages.get();
}
}