/*
* 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.turbine.pipeline.valve;
import static com.alibaba.citrus.springext.util.SpringExtUtil.*;
import static com.alibaba.citrus.turbine.TurbineConstant.*;
import static com.alibaba.citrus.turbine.util.TurbineUtil.*;
import static com.alibaba.citrus.util.FileUtil.*;
import static com.alibaba.citrus.util.StringUtil.*;
import javax.servlet.http.HttpServletRequest;
import com.alibaba.citrus.service.mappingrule.MappingRuleService;
import com.alibaba.citrus.service.pipeline.PipelineContext;
import com.alibaba.citrus.service.pipeline.support.AbstractValve;
import com.alibaba.citrus.service.pipeline.support.AbstractValveDefinitionParser;
import com.alibaba.citrus.turbine.TurbineRunDataInternal;
import com.alibaba.citrus.util.ServletUtil;
import com.alibaba.citrus.util.StringUtil;
import com.alibaba.citrus.util.internal.ActionEventUtil;
import com.alibaba.citrus.webx.WebxComponent;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
/**
* 根据URL的内容来设置rundata。根据以下规则：
* <ol>
* <li>取得servletPath + pathInfo - componentPath作为target。</li>
* <li>使用MappingRuleService，将target的后缀转换成统一的内部后缀。例如：将jhtml转换成jsp。</li>
* </ol>
*
* @author Michael Zhou
*/
public class AnalyzeURLValve extends AbstractValve {
private static final String DEFAULT_ACTION_PARAM_NAME = "action";
@Autowired
private HttpServletRequest request;
@Autowired
private MappingRuleService mappingRuleService;
@Autowired
private WebxComponent component;
private String homepage;
private String actionParam;
/** 设置在URL query中代表action的参数名。 */
public void setActionParam(String actionParam) {
this.actionParam = trimToNull(actionParam);
}
public String getHomepage() {
return homepage;
}
public void setHomepage(String homepage) {
this.homepage = normalizeAbsolutePath(homepage);
}
@Override
protected void init() throws Exception {
if (actionParam == null) {
actionParam = DEFAULT_ACTION_PARAM_NAME;
}
if (homepage == null) {
setHomepage("/index");
}
}
public void invoke(PipelineContext pipelineContext) throws Exception {
TurbineRunDataInternal rundata = (TurbineRunDataInternal) getTurbineRunData(request);
String target = null;
// 取得target，并转换成统一的内部后缀名。
String pathInfo = ServletUtil.getResourcePath(rundata.getRequest()).substring(
component.getComponentPath().length());
if ("/".equals(pathInfo)) {
pathInfo = getHomepage();
}
// 注意，必须将pathInfo转换成camelCase。
int lastSlashIndex = pathInfo.lastIndexOf("/");
if (lastSlashIndex >= 0) {
pathInfo = pathInfo.substring(0, lastSlashIndex) + "/"
+ StringUtil.toCamelCase(pathInfo.substring(lastSlashIndex + 1));
} else {
pathInfo = StringUtil.toCamelCase(pathInfo);
}
target = mappingRuleService.getMappedName(EXTENSION_INPUT, pathInfo);
rundata.setTarget(target);
// 取得action
String action = StringUtil.toCamelCase(trimToNull(rundata.getParameters().getString(actionParam)));
action = mappingRuleService.getMappedName(ACTION_MODULE, action);
rundata.setAction(action);
// 取得actionEvent
String actionEvent = ActionEventUtil.getEventName(rundata.getRequest());
rundata.setActionEvent(actionEvent);
pipelineContext.invokeNext();
}
public static class DefinitionParser extends AbstractValveDefinitionParser<AnalyzeURLValve> {
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
attributesToProperties(element, builder, "homepage", "actionParam");
}
}
}