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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.io;
20  
21  import java.io.IOException;
22  import java.net.InetSocketAddress;
23  import java.nio.ByteBuffer;
24  import java.util.concurrent.TimeoutException;
25  
26  import org.eclipse.jetty.util.Callback;
27  import org.eclipse.jetty.util.log.Log;
28  import org.eclipse.jetty.util.log.Logger;
29  import org.eclipse.jetty.util.thread.Scheduler;
30  
31  public abstract class AbstractEndPoint extends IdleTimeout implements EndPoint
32  {
33      private static final Logger LOG = Log.getLogger(AbstractEndPoint.class);
34      private final long _created=System.currentTimeMillis();
35      private final InetSocketAddress _local;
36      private final InetSocketAddress _remote;
37      private volatile Connection _connection;
38  
39      private final FillInterest _fillInterest = new FillInterest()
40      {
41          @Override
42          protected boolean needsFill() throws IOException
43          {
44              return AbstractEndPoint.this.needsFill();
45          }
46      };
47      private final WriteFlusher _writeFlusher = new WriteFlusher(this)
48      {
49          @Override
50          protected void onIncompleteFlushed()
51          {
52              AbstractEndPoint.this.onIncompleteFlush();
53          }
54      };
55  
56      protected AbstractEndPoint(Scheduler scheduler,InetSocketAddress local,InetSocketAddress remote)
57      {
58          super(scheduler);
59          _local=local;
60          _remote=remote;
61      }
62  
63      @Override
64      public long getCreatedTimeStamp()
65      {
66          return _created;
67      }
68  
69      @Override
70      public InetSocketAddress getLocalAddress()
71      {
72          return _local;
73      }
74  
75      @Override
76      public InetSocketAddress getRemoteAddress()
77      {
78          return _remote;
79      }
80      
81      @Override
82      public Connection getConnection()
83      {
84          return _connection;
85      }
86  
87      @Override
88      public void setConnection(Connection connection)
89      {
90          _connection = connection;
91      }
92  
93      @Override
94      public void onOpen()
95      {
96          LOG.debug("onOpen {}",this);
97          super.onOpen();
98      }
99  
100     @Override
101     public void onClose()
102     {
103         LOG.debug("onClose {}",this);
104         _writeFlusher.onClose();
105         _fillInterest.onClose();
106     }
107     
108     @Override
109     public void close()
110     {
111         super.close();
112     }
113 
114     @Override
115     public void fillInterested(Callback callback) throws IllegalStateException
116     {
117         notIdle();
118         _fillInterest.register(callback);
119     }
120 
121     @Override
122     public void write(Callback callback, ByteBuffer... buffers) throws IllegalStateException
123     {
124         _writeFlusher.write(callback, buffers);
125     }
126 
127     protected abstract void onIncompleteFlush();
128 
129     protected abstract boolean needsFill() throws IOException;
130 
131     protected FillInterest getFillInterest()
132     {
133         return _fillInterest;
134     }
135 
136     protected WriteFlusher getWriteFlusher()
137     {
138         return _writeFlusher;
139     }
140 
141     @Override
142     protected void onIdleExpired(TimeoutException timeout)
143     {
144         if (isOutputShutdown() || _fillInterest.isInterested() || _writeFlusher.isInProgress())
145         {
146             boolean output_shutdown=isOutputShutdown();
147             _fillInterest.onFail(timeout);
148             _writeFlusher.onFail(timeout);
149             if (output_shutdown)
150                 close();
151         }
152     }
153 
154     @Override
155     public String toString()
156     {
157         return String.format("%s@%x{%s<r-l>%s,o=%b,is=%b,os=%b,fi=%s,wf=%s,it=%d}{%s}",
158                 getClass().getSimpleName(),
159                 hashCode(),
160                 getRemoteAddress(),
161                 getLocalAddress(),
162                 isOpen(),
163                 isInputShutdown(),
164                 isOutputShutdown(),
165                 _fillInterest,
166                 _writeFlusher,
167                 getIdleTimeout(),
168                 getConnection());
169     }
170 }