BaseIoService


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20  package org.apache.mina.common.support;
21  
22  import java.net.SocketAddress  ;
23  import java.util.Set  ;
24  
25  import org.apache.mina.common.DefaultIoFilterChainBuilder;
26  import org.apache.mina.common.IoFilterChainBuilder;
27  import org.apache.mina.common.IoService;
28  import org.apache.mina.common.IoServiceListener;
29  import org.apache.mina.common.IoSession;
30  
31  /**
32   * Base implementation of {@link IoService}s.
33   *
34   * @author The Apache Directory Project (mina-dev@directory.apache.org)
35   * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (금, 13  7월 2007) $
36   */
37  public abstract class BaseIoService implements IoService {
38      /**
39       * Current filter chain builder.
40       */
41      private IoFilterChainBuilder filterChainBuilder = new DefaultIoFilterChainBuilder();
42  
43      /**
44       * Maintains the {@link IoServiceListener}s of this service.
45       */
46      private final IoServiceListenerSupport listeners;
47  
48      protected BaseIoService() {
49          this.listeners = new IoServiceListenerSupport();
50      }
51  
52      public IoFilterChainBuilder getFilterChainBuilder() {
53          return filterChainBuilder;
54      }
55  
56      public void setFilterChainBuilder(IoFilterChainBuilder builder) {
57          if (builder == null) {
58              builder = new DefaultIoFilterChainBuilder();
59          }
60          filterChainBuilder = builder;
61      }
62  
63      public DefaultIoFilterChainBuilder getFilterChain() {
64          if (filterChainBuilder instanceof DefaultIoFilterChainBuilder) {
65              return (DefaultIoFilterChainBuilder) filterChainBuilder;
66          } else {
67              throw new IllegalStateException  (
68                      "Current filter chain builder is not a DefaultIoFilterChainBuilder.");
69          }
70      }
71  
72      public void addListener(IoServiceListener listener) {
73          getListeners().add(listener);
74      }
75  
76      public void removeListener(IoServiceListener listener) {
77          getListeners().remove(listener);
78      }
79  
80      public Set  <SocketAddress  > getManagedServiceAddresses() {
81          return getListeners().getManagedServiceAddresses();
82      }
83  
84      public Set  <IoSession> getManagedSessions(SocketAddress   serviceAddress) {
85          return getListeners().getManagedSessions(serviceAddress);
86      }
87  
88      public boolean isManaged(SocketAddress   serviceAddress) {
89          return getListeners().isManaged(serviceAddress);
90      }
91  
92      protected IoServiceListenerSupport getListeners() {
93          return listeners;
94      }
95  }
96
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