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A Struts2 plugin for leveraging conversation scopes in Struts2

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/*******************************************************************************
 * 
 *  Struts2-Conversation-Plugin - An Open Source Conversation- and Flow-Scope Solution for Struts2-based Applications
 *  =================================================================================================================
 * 
 *  Copyright (C) 2012 by Rees Byars
 *  http://code.google.com/p/struts2-conversation/
 * 
 * **********************************************************************************************************************
 * 
 *  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.
 * 
 * **********************************************************************************************************************
 * 
 *  $Id: ConversationEndProcessor.java reesbyars $
 ******************************************************************************/
package com.google.code.rees.scope.conversation.processing;

import java.util.Map.Entry;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.code.rees.scope.conversation.ConversationAdapter;
import com.google.code.rees.scope.conversation.configuration.ConversationClassConfiguration;

/**
 * A {@link ConversationPostProcessor} used to remove a conversation context
 * from the session context after an action has been executed.  Is registered
 * for execution via {@link ConversationAdapter#addPostProcessor(ConversationPostProcessor, ConversationClassConfiguration, String)
 * 
 * @author rees.byars
 * 
 */
public class ConversationEndProcessor implements ConversationPostProcessor {

    private static final long serialVersionUID = 2164492176500215404L;
    private static final Logger LOG = LoggerFactory.getLogger(ConversationEndProcessor.class);

    /**
     * Removes the conversation context from the session context
     */
    @Override
    public void postProcessConversation(ConversationAdapter conversationAdapter, ConversationClassConfiguration conversationConfig, String conversationId) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("In Conversation " + conversationConfig.getConversationName() + ", removing conversation map from session following conversation end.");
        }
        String conversationName = null;
        if (conversationConfig == null) {
            for (Entry nameIdPair : conversationAdapter.getRequestContext().entrySet()) {
                if (nameIdPair.getValue().equals(conversationId)) {
                    conversationName = nameIdPair.getKey();
                    break;
                }
            }
        } else {
            conversationName = conversationConfig.getConversationName();
        }
        conversationAdapter.endConversation(conversationName, conversationId);
    }

}