BaseIoServiceConfig


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20  package org.apache.mina.common.support;
21  
22  import java.lang.reflect.Method  ;
23  
24  import org.apache.mina.common.DefaultIoFilterChainBuilder;
25  import org.apache.mina.common.ExecutorThreadModel;
26  import org.apache.mina.common.IoFilterChainBuilder;
27  import org.apache.mina.common.IoServiceConfig;
28  import org.apache.mina.common.ThreadModel;
29  
30  /**
31   * A base implementation of {@link IoServiceConfig}.
32   *
33   * @author The Apache Directory Project (mina-dev@directory.apache.org)
34   * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (금, 13  7월 2007) $
35   */
36  public abstract class BaseIoServiceConfig implements IoServiceConfig, Cloneable   {
37      /**
38       * Current filter chain builder.
39       */
40      private IoFilterChainBuilder filterChainBuilder = new DefaultIoFilterChainBuilder();
41  
42      /**
43       * The default thread model.
44       */
45      private final ThreadModel defaultThreadModel = ExecutorThreadModel
46              .getInstance("AnonymousIoService");
47  
48      /**
49       * Current thread model.
50       */
51      private ThreadModel threadModel = defaultThreadModel;
52  
53      public BaseIoServiceConfig() {
54          super();
55      }
56  
57      public IoFilterChainBuilder getFilterChainBuilder() {
58          return filterChainBuilder;
59      }
60  
61      public void setFilterChainBuilder(IoFilterChainBuilder builder) {
62          if (builder == null) {
63              builder = new DefaultIoFilterChainBuilder();
64          }
65          filterChainBuilder = builder;
66      }
67  
68      public DefaultIoFilterChainBuilder getFilterChain() {
69          if (filterChainBuilder instanceof DefaultIoFilterChainBuilder) {
70              return (DefaultIoFilterChainBuilder) filterChainBuilder;
71          } else {
72              throw new IllegalStateException  (
73                      "Current filter chain builder is not a DefaultIoFilterChainBuilder.");
74          }
75      }
76  
77      public ThreadModel getThreadModel() {
78          return threadModel;
79      }
80  
81      public void setThreadModel(ThreadModel threadModel) {
82          if (threadModel == null) {
83              // We reuse the previous default model to prevent too much
84              // daemon threads are created.
85              threadModel = defaultThreadModel;
86          }
87          this.threadModel = threadModel;
88      }
89  
90      @Override  
91      public Object   clone() {
92          BaseIoServiceConfig ret;
93          try {
94              ret = (BaseIoServiceConfig) super.clone();
95          } catch (CloneNotSupportedException   e) {
96              throw (InternalError  ) new InternalError  ().initCause(e);
97          }
98  
99          // Try to clone the chain builder.
100         try {
101             Method   cloneMethod = this.filterChainBuilder.getClass().getMethod(
102                     "clone");
103             if (cloneMethod.isAccessible()) {
104                 ret.filterChainBuilder = (IoFilterChainBuilder) cloneMethod
105                         .invoke(this.filterChainBuilder);
106             }
107         } catch (Exception   e) {
108             // uncloneable
109         }
110 
111         return ret;
112     }
113 }
114
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