/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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 com.alibaba.citrus.service.requestcontext.impl;
import static com.alibaba.citrus.util.Assert.*;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.alibaba.citrus.service.requestcontext.RequestContext;
import com.alibaba.citrus.service.requestcontext.RequestContextChainingService;
import com.alibaba.citrus.util.ToStringBuilder;
import com.alibaba.citrus.util.ToStringBuilder.MapBuilder;
/**
* 实现了<code>RequestContext</code>接口，包含request、response和servletContext的信息。
*
* @author Michael Zhou
*/
public class SimpleRequestContext extends CommitMonitor implements RequestContext, HeaderCommitter {
private final ServletContext servletContext;
private final HttpServletRequest request;
private final HttpServletResponse response;
/**
* 创建一个新的<code>RequestContext</code>对象。
*
* @param servletContext 当前请求所在的<code>ServletContext</code>
* @param request <code>HttpServletRequest</code>对象
* @param response <code>HttpServletResponse</code>对象
*/
public SimpleRequestContext(ServletContext servletContext, HttpServletRequest request, HttpServletResponse response, RequestContextChainingService service) {
super(service);
this.servletContext = assertNotNull(servletContext, "servletContext");
this.request = assertNotNull(request, "request");
this.response = new CommittingAwareResponse(assertNotNull(response, "response"), this);
}
/**
* 取得被包装的context。
*
* @return 被包装的<code>RequestContext</code>对象
*/
public RequestContext getWrappedRequestContext() {
return null;
}
/**
* 取得servletContext对象。
*
* @return <code>ServletContext</code>对象
*/
public ServletContext getServletContext() {
return servletContext;
}
/**
* 取得request对象。
*
* @return <code>HttpServletRequest</code>对象
*/
public HttpServletRequest getRequest() {
return request;
}
/**
* 取得response对象。
*
* @return <code>HttpServletResponse</code>对象
*/
public HttpServletResponse getResponse() {
return response;
}
/** 开始一个请求。 */
public void prepare() {
}
/** 结束一个请求。 */
public void commit() {
}
/**
* 显示当前<code>RequestContext</code>的内容。
*
* @return 字符串表示
*/
@Override
public String toString() {
MapBuilder mb = new MapBuilder();
mb.append("request", getRequest());
mb.append("response", getResponse());
mb.append("webapp", getServletContext());
return new ToStringBuilder().append(getClass().getSimpleName()).append(mb).toString();
}
}