View Javadoc

1   /*
2    * Copyright 2009 Red Hat, Inc.
3    *
4    * Red Hat licenses this file to you under the Apache License, version 2.0
5    * (the "License"); you may not use this file except in compliance with the
6    * License.  You may obtain a copy of the License at:
7    *
8    *    http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package org.jboss.netty.channel.socket;
17  
18  import java.net.ServerSocket;
19  import java.net.SocketException;
20  
21  import org.jboss.netty.channel.ChannelException;
22  import org.jboss.netty.channel.DefaultServerChannelConfig;
23  import org.jboss.netty.util.internal.ConversionUtil;
24  
25  /**
26   * The default {@link ServerSocketChannelConfig} implementation.
27   *
28   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
29   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
30   *
31   * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
32   */
33  public class DefaultServerSocketChannelConfig extends DefaultServerChannelConfig
34                                                implements ServerSocketChannelConfig {
35  
36      private final ServerSocket socket;
37      private volatile int backlog;
38  
39      /**
40       * Creates a new instance.
41       */
42      public DefaultServerSocketChannelConfig(ServerSocket socket) {
43          if (socket == null) {
44              throw new NullPointerException("socket");
45          }
46          this.socket = socket;
47      }
48  
49      @Override
50      public boolean setOption(String key, Object value) {
51          if (super.setOption(key, value)) {
52              return true;
53          }
54  
55          if (key.equals("receiveBufferSize")) {
56              setReceiveBufferSize(ConversionUtil.toInt(value));
57          } else if (key.equals("reuseAddress")) {
58              setReuseAddress(ConversionUtil.toBoolean(value));
59          } else if (key.equals("backlog")) {
60              setBacklog(ConversionUtil.toInt(value));
61          } else {
62              return false;
63          }
64          return true;
65      }
66  
67      public boolean isReuseAddress() {
68          try {
69              return socket.getReuseAddress();
70          } catch (SocketException e) {
71              throw new ChannelException(e);
72          }
73      }
74  
75      public void setReuseAddress(boolean reuseAddress) {
76          try {
77              socket.setReuseAddress(reuseAddress);
78          } catch (SocketException e) {
79              throw new ChannelException(e);
80          }
81      }
82  
83      public int getReceiveBufferSize() {
84          try {
85              return socket.getReceiveBufferSize();
86          } catch (SocketException e) {
87              throw new ChannelException(e);
88          }
89      }
90  
91      public void setReceiveBufferSize(int receiveBufferSize) {
92          try {
93              socket.setReceiveBufferSize(receiveBufferSize);
94          } catch (SocketException e) {
95              throw new ChannelException(e);
96          }
97      }
98  
99      public void setPerformancePreferences(int connectionTime, int latency, int bandwidth) {
100         socket.setPerformancePreferences(connectionTime, latency, bandwidth);
101     }
102 
103     public int getBacklog() {
104         return backlog;
105     }
106 
107     public void setBacklog(int backlog) {
108         if (backlog < 0) {
109             throw new IllegalArgumentException("backlog: " + backlog);
110         }
111         this.backlog = backlog;
112     }
113 }