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19 package org.eclipse.jetty.embedded;
20
21 import java.io.File;
22 import java.io.IOException;
23 import java.util.Map;
24
25 import javax.servlet.ServletException;
26 import javax.servlet.http.HttpServletRequest;
27 import javax.servlet.http.HttpServletResponse;
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29 import org.eclipse.jetty.server.Handler;
30 import org.eclipse.jetty.server.NCSARequestLog;
31 import org.eclipse.jetty.server.Request;
32 import org.eclipse.jetty.server.Server;
33 import org.eclipse.jetty.server.handler.AbstractHandler;
34 import org.eclipse.jetty.server.handler.DefaultHandler;
35 import org.eclipse.jetty.server.handler.HandlerCollection;
36 import org.eclipse.jetty.server.handler.HandlerList;
37 import org.eclipse.jetty.server.handler.HandlerWrapper;
38 import org.eclipse.jetty.server.handler.RequestLogHandler;
39 import org.eclipse.jetty.util.ajax.JSON;
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69 public class ManyHandlers
70 {
71 public static void main(String[] args) throws Exception
72 {
73 Server server = new Server(8080);
74
75
76 Handler param = new ParamHandler();
77 HandlerWrapper wrapper = new HandlerWrapper()
78 {
79 @Override
80 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException,
81 ServletException
82 {
83 request.setAttribute("welcome","Hello");
84 super.handle(target,baseRequest,request,response);
85 }
86 };
87 Handler hello = new HelloHandler();
88 Handler dft = new DefaultHandler();
89 RequestLogHandler log = new RequestLogHandler();
90
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92 log.setRequestLog(new NCSARequestLog(File.createTempFile("demo","log").getAbsolutePath()));
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95 HandlerCollection handlers = new HandlerCollection();
96 HandlerList list = new HandlerList();
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99 wrapper.setHandler(hello);
100 list.setHandlers(new Handler[]
101 { param, wrapper, dft });
102 handlers.setHandlers(new Handler[]
103 { list, log });
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105 server.setHandler(handlers);
106
107 server.start();
108 server.join();
109 }
110
111 public static class ParamHandler extends AbstractHandler
112 {
113 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
114 {
115 Map params = request.getParameterMap();
116 if (params.size() > 0)
117 {
118 response.setContentType("text/plain");
119 response.getWriter().println(JSON.toString(params));
120 ((Request)request).setHandled(true);
121 }
122 }
123 }
124 }