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14 package org.eclipse.jetty.embedded;
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16 import java.io.File;
17 import java.io.IOException;
18 import java.util.Map;
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20 import javax.servlet.ServletException;
21 import javax.servlet.http.HttpServletRequest;
22 import javax.servlet.http.HttpServletResponse;
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24 import org.eclipse.jetty.server.Handler;
25 import org.eclipse.jetty.server.NCSARequestLog;
26 import org.eclipse.jetty.server.Request;
27 import org.eclipse.jetty.server.Server;
28 import org.eclipse.jetty.server.handler.AbstractHandler;
29 import org.eclipse.jetty.server.handler.DefaultHandler;
30 import org.eclipse.jetty.server.handler.HandlerCollection;
31 import org.eclipse.jetty.server.handler.HandlerList;
32 import org.eclipse.jetty.server.handler.HandlerWrapper;
33 import org.eclipse.jetty.server.handler.RequestLogHandler;
34 import org.eclipse.jetty.util.ajax.JSON;
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64 public class ManyHandlers
65 {
66 public static void main(String[] args) throws Exception
67 {
68 Server server = new Server(8080);
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71 Handler param = new ParamHandler();
72 HandlerWrapper wrapper = new HandlerWrapper()
73 {
74 @Override
75 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException,
76 ServletException
77 {
78 request.setAttribute("welcome","Hello");
79 super.handle(target,baseRequest,request,response);
80 }
81 };
82 Handler hello = new HelloHandler();
83 Handler dft = new DefaultHandler();
84 RequestLogHandler log = new RequestLogHandler();
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87 log.setRequestLog(new NCSARequestLog(File.createTempFile("demo","log").getAbsolutePath()));
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90 HandlerCollection handlers = new HandlerCollection();
91 HandlerList list = new HandlerList();
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94 wrapper.setHandler(hello);
95 list.setHandlers(new Handler[]
96 { param, wrapper, dft });
97 handlers.setHandlers(new Handler[]
98 { list, log });
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100 server.setHandler(handlers);
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102 server.start();
103 server.join();
104 }
105
106 public static class ParamHandler extends AbstractHandler
107 {
108 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
109 {
110 Map params = request.getParameterMap();
111 if (params.size() > 0)
112 {
113 response.setContentType("text/plain");
114 response.getWriter().println(JSON.toString(params));
115 ((Request)request).setHandled(true);
116 }
117 }
118 }
119 }