/*
* 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.webx.impl;
import javax.servlet.http.HttpServletRequest;
import com.alibaba.citrus.service.requestcontext.RequestContext;
import com.alibaba.citrus.util.ServletUtil;
import com.alibaba.citrus.webx.WebxComponent;
import com.alibaba.citrus.webx.support.AbstractWebxRootController;
import com.alibaba.citrus.webx.util.WebxUtil;
/**
* 对<code>WebxRootController</code>的默认实现。
*
* @author Michael Zhou
*/
public class WebxRootControllerImpl extends AbstractWebxRootController {
@Override
protected boolean handleRequest(RequestContext requestContext) throws Exception {
HttpServletRequest request = requestContext.getRequest();
// Servlet mapping有两种匹配方式：前缀匹配和后缀匹配。
// 对于前缀匹配，例如：/servlet/aaa/bbb，servlet path为/servlet，path info为/aaa/bbb
// 对于前缀匹配，当mapping pattern为/*时，/aaa/bbb，servlet path为""，path info为/aaa/bbb
// 对于后缀匹配，例如：/aaa/bbb.html，servlet path为/aaa/bbb.html，path info为null
//
// 对于前缀匹配，取其pathInfo；对于后缀匹配，取其servletPath。
String path = ServletUtil.getResourcePath(request);
// 再根据path查找component
WebxComponent component = getComponents().findMatchedComponent(path);
boolean served = false;
if (component != null) {
try {
WebxUtil.setCurrentComponent(request, component);
served = component.getWebxController().service(requestContext);
} finally {
WebxUtil.setCurrentComponent(request, null);
}
}
return served;
}
}