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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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43
44
45
46 public AbstractHandler()
47 {
48 }
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52
53
54 @Override
55 protected void doStart() throws Exception
56 {
57 if (LOG.isDebugEnabled())
58 LOG.debug("starting {}",this);
59 if (_server==null)
60 LOG.warn("No Server set for {}",this);
61 super.doStart();
62 }
63
64
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66
67
68 @Override
69 protected void doStop() throws Exception
70 {
71 if (LOG.isDebugEnabled())
72 LOG.debug("stopping {}",this);
73 super.doStop();
74 }
75
76
77 @Override
78 public void setServer(Server server)
79 {
80 if (_server==server)
81 return;
82 if (isStarted())
83 throw new IllegalStateException(STARTED);
84 _server=server;
85 }
86
87
88 @Override
89 public Server getServer()
90 {
91 return _server;
92 }
93
94
95 @Override
96 public void destroy()
97 {
98 if (!isStopped())
99 throw new IllegalStateException("!STOPPED");
100 super.destroy();
101 }
102
103
104 @Override
105 public void dumpThis(Appendable out) throws IOException
106 {
107 out.append(toString()).append(" - ").append(getState()).append('\n');
108 }
109
110 }