94 lines
3.2 KiB
Java
94 lines
3.2 KiB
Java
package cn.coyoteam.aweresf.web.servlet;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Properties;
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import javax.servlet.ServletConfig;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import cn.coyoteam.aweresf.consts.XWConst;
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import cn.coyoteam.aweresf.util.StringHelper;
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import cn.coyoteam.aweresf.web.xw.render.XWRenderAsJson;
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import cn.coyoteam.aweresf.web.xw.render.XWRenderIntercept;
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import com.amarsoft.awe.dw.ASObjectModel;
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import com.amarsoft.awe.dw.ASObjectWindow;
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/***
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* DW或OW重新定向渲染处理Servlet
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* @author EX-YANGSONG001
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* @date 2015/5/14
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*/
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public class XWRenderServlet extends HttpServlet {
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private static final long serialVersionUID = 1836559134168560992L;
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private Properties xwInterceptProperties = new Properties();
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public XWRenderServlet() {
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super();
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}
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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ASObjectModel doTemp = (ASObjectModel)request.getAttribute("doTemp");
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ASObjectWindow dwTemp = (ASObjectWindow)request.getAttribute("dwTemp");
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@SuppressWarnings("unchecked")
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XWRenderAsJson<ASObjectModel,ASObjectWindow> owRender = (XWRenderAsJson<ASObjectModel,ASObjectWindow>)request.getAttribute("owRender");
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//对象不存在，则抛出错误
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if(doTemp == null || dwTemp == null) {
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throw new ServletException("owRender not found!");
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}
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//如果相应的URI有拦截器存在，则设置拦截器，以备在数据渲染时调用
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String xwUri = (String)request.getAttribute(XWConst.XWURI);
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XWRenderIntercept xwRenderIntercept = lookupXWRenderIntercept(xwUri);
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if(xwRenderIntercept!=null)owRender.setXwRenderIntercept(xwRenderIntercept);
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//执行渲染
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owRender.initXw(doTemp, dwTemp);
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owRender.render(request, response);
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}
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protected XWRenderIntercept lookupXWRenderIntercept(String xwUri){
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String className = xwInterceptProperties.getProperty(xwUri);
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if(className==null)return null;
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try {
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Object object = Class.forName(className).newInstance();
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if(object instanceof XWRenderIntercept){
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XWRenderIntercept renderIntercept = (XWRenderIntercept)object;
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return renderIntercept;
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}
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} catch (InstantiationException e) {
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throw new RuntimeException(e);
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} catch (IllegalAccessException e) {
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throw new RuntimeException(e);
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} catch (ClassNotFoundException e) {
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throw new RuntimeException(e);
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}
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return null;
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}
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public void init(ServletConfig filterConfig) throws ServletException {
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super.init(filterConfig);
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String interceptConfig = StringHelper.nvl(filterConfig.getInitParameter(XWConst.KEY_XW_INTERCEPT_CONFIG),"");
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interceptConfig = interceptConfig.replaceAll("\\s+", "");
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if(interceptConfig!=null&&interceptConfig.startsWith("classpath:")){
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interceptConfig = interceptConfig.substring(10);
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InputStream in = getClass().getResourceAsStream(interceptConfig);
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try {
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xwInterceptProperties.load(in);
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} catch (IOException e) {
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throw new ServletException(String.format("load %s file error", XWConst.KEY_XW_INTERCEPT_CONFIG));
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}
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}
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}
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}
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