com.google.code.rees.scope.spring.SpringConversationAdapter.java Source code

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Here is the source code for com.google.code.rees.scope.spring.SpringConversationAdapter.java

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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: SpringConversationAdapter.java reesbyars $
 ******************************************************************************/
package com.google.code.rees.scope.spring;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.method.HandlerMethod;

import com.google.code.rees.scope.conversation.ConversationAdapter;
import com.google.code.rees.scope.conversation.context.ConversationContext;
import com.google.code.rees.scope.conversation.context.ConversationContextManager;
import com.google.code.rees.scope.util.RequestContextUtil;
import com.google.code.rees.scope.util.SessionContextUtil;

/**
 * An implementation of the {@link ConversationAdapter} for use with Spring MVC.
 * 
 * @author rees.byars
 * 
 */
public class SpringConversationAdapter extends ConversationAdapter {

    private static final long serialVersionUID = 5664922664767226366L;

    protected ConversationContextManager conversationContextManager;
    protected Map<String, Object> sessionContext;
    protected Map<String, String> requestContext;
    protected Object action;
    protected String actionId;
    protected HttpServletRequest request;

    public SpringConversationAdapter(HttpServletRequest request, HandlerMethod handler,
            ConversationContextManager conversationContextManager) {
        this.sessionContext = SessionContextUtil.getSessionContext(request);
        this.requestContext = RequestContextUtil.getRequestContext(request);
        this.action = handler.getBean();
        this.actionId = handler.getMethod().getName();
        this.conversationContextManager = conversationContextManager;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object getAction() {
        return this.action;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String getActionId() {
        return this.actionId;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Map<String, String> getRequestContext() {

        HttpServletRequest currentRequest = ((ServletRequestAttributes) RequestContextHolder
                .currentRequestAttributes()).getRequest();

        if (!currentRequest.equals(this.request)) {
            this.request = currentRequest;
            requestContext = RequestContextUtil.getRequestContext(currentRequest);
        }

        return this.requestContext;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ConversationContext beginConversation(String conversationName, long maxIdleTimeMillis) {
        return this.conversationContextManager.createContext(conversationName, maxIdleTimeMillis);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ConversationContext getConversationContext(String conversationName, String conversationId) {
        return this.conversationContextManager.getContext(conversationName, conversationId);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ConversationContext endConversation(String conversationName, String conversationId) {
        return this.conversationContextManager.remove(conversationName, conversationId);
    }

}