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14 package org.eclipse.jetty.server.handler;
15
16 import java.io.IOException;
17
18 import javax.servlet.ServletException;
19 import javax.servlet.http.HttpServletRequest;
20 import javax.servlet.http.HttpServletResponse;
21
22 import org.eclipse.jetty.server.Handler;
23 import org.eclipse.jetty.server.HandlerContainer;
24 import org.eclipse.jetty.server.Request;
25 import org.eclipse.jetty.server.Server;
26 import org.eclipse.jetty.util.component.LifeCycle;
27
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31
32
33 public class HandlerWrapper extends AbstractHandlerContainer
34 {
35 protected Handler _handler;
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37
38
39
40
41 public HandlerWrapper()
42 {
43 }
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45
46
47
48
49 public Handler getHandler()
50 {
51 return _handler;
52 }
53
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56
57
58 public Handler[] getHandlers()
59 {
60 return new Handler[] {_handler};
61 }
62
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65
66
67 public void setHandler(Handler handler)
68 {
69 if (isStarted())
70 throw new IllegalStateException(STARTED);
71
72 Handler old_handler = _handler;
73
74 if (getServer()!=null)
75 getServer().getContainer().update(this, old_handler, handler, "handler");
76
77 if (handler!=null)
78 {
79 handler.setServer(getServer());
80 }
81
82 _handler = handler;
83 }
84
85
86
87
88
89 protected void doStart() throws Exception
90 {
91 if (_handler!=null)
92 _handler.start();
93 super.doStart();
94 }
95
96
97
98
99
100 protected void doStop() throws Exception
101 {
102 super.doStop();
103 if (_handler!=null)
104 _handler.stop();
105 }
106
107
108 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
109 {
110 if (_handler!=null && isStarted())
111 {
112 _handler.handle(target,baseRequest, request, response);
113 }
114 }
115
116
117
118 @Override
119 public void setServer(Server server)
120 {
121 Server old_server=getServer();
122 if (server==old_server)
123 return;
124
125 if (isStarted())
126 throw new IllegalStateException(STARTED);
127
128 super.setServer(server);
129
130 Handler h=getHandler();
131 if (h!=null)
132 h.setServer(server);
133
134 if (server!=null && server!=old_server)
135 server.getContainer().update(this, null,_handler, "handler");
136 }
137
138
139
140 @Override
141 protected Object expandChildren(Object list, Class byClass)
142 {
143 return expandHandler(_handler,list,byClass);
144 }
145
146
147 }