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19 package org.eclipse.jetty.server.handler;
20
21
22 import java.io.IOException;
23
24 import org.eclipse.jetty.server.Handler;
25 import org.eclipse.jetty.server.Server;
26 import org.eclipse.jetty.util.annotation.ManagedObject;
27 import org.eclipse.jetty.util.component.ContainerLifeCycle;
28 import org.eclipse.jetty.util.log.Log;
29 import org.eclipse.jetty.util.log.Logger;
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35 @ManagedObject("Jetty Handler")
36 public abstract class AbstractHandler extends ContainerLifeCycle implements Handler
37 {
38 private static final Logger LOG = Log.getLogger(AbstractHandler.class);
39
40 private Server _server;
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44
45
46 public AbstractHandler()
47 {
48 }
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52
53
54 @Override
55 protected void doStart() throws Exception
56 {
57 LOG.debug("starting {}",this);
58 if (_server==null)
59 LOG.warn("No Server set for {}",this);
60 super.doStart();
61 }
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65
66
67 @Override
68 protected void doStop() throws Exception
69 {
70 LOG.debug("stopping {}",this);
71 super.doStop();
72 }
73
74
75 @Override
76 public void setServer(Server server)
77 {
78 if (_server==server)
79 return;
80 if (isStarted())
81 throw new IllegalStateException(STARTED);
82 _server=server;
83 }
84
85
86 @Override
87 public Server getServer()
88 {
89 return _server;
90 }
91
92
93 @Override
94 public void destroy()
95 {
96 if (!isStopped())
97 throw new IllegalStateException("!STOPPED");
98 super.destroy();
99 }
100
101
102 @Override
103 public void dumpThis(Appendable out) throws IOException
104 {
105 out.append(toString()).append(" - ").append(getState()).append('\n');
106 }
107
108 }