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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *  
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *  
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License. 
18   *  
19   */
20  package org.apache.mina.transport.socket.nio;
21  
22  import org.apache.mina.common.ExpiringSessionRecycler;
23  import org.apache.mina.common.IoAcceptorConfig;
24  import org.apache.mina.common.IoSessionConfig;
25  import org.apache.mina.common.IoSessionRecycler;
26  import org.apache.mina.common.RuntimeIOException;
27  import org.apache.mina.common.support.BaseIoAcceptorConfig;
28  import org.apache.mina.transport.socket.nio.support.DatagramSessionConfigImpl;
29  
30  /**
31   * An {@link IoAcceptorConfig} for {@link DatagramAcceptor}.
32   *
33   * @author The Apache Directory Project (mina-dev@directory.apache.org)
34   * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
35   */
36  public class DatagramAcceptorConfig extends BaseIoAcceptorConfig implements
37          DatagramServiceConfig {
38      private static final IoSessionRecycler DEFAULT_RECYCLER = new ExpiringSessionRecycler();
39  
40      /**
41       * Current session recycler
42       */
43      private IoSessionRecycler sessionRecycler = DEFAULT_RECYCLER;
44  
45      private DatagramSessionConfig sessionConfig = new DatagramSessionConfigImpl();
46  
47      /**
48       * Creates a new instance.
49       * 
50       * @throws RuntimeIOException if failed to get the default configuration
51       */
52      public DatagramAcceptorConfig() {
53          super();
54          sessionConfig.setReuseAddress(true);
55      }
56  
57      public IoSessionConfig getSessionConfig() {
58          return sessionConfig;
59      }
60  
61      public IoSessionRecycler getSessionRecycler() {
62          return sessionRecycler;
63      }
64  
65      // FIXME There can be a problem if a user changes the recycler after the service is activated.
66      public void setSessionRecycler(IoSessionRecycler sessionRecycler) {
67          if (sessionRecycler == null) {
68              sessionRecycler = DEFAULT_RECYCLER;
69          }
70          this.sessionRecycler = sessionRecycler;
71      }
72  
73      public Object clone() {
74          DatagramAcceptorConfig ret = (DatagramAcceptorConfig) super.clone();
75          ret.sessionConfig = (DatagramSessionConfig) this.sessionConfig.clone();
76          return ret;
77      }
78  }