RemoteObject


1   /**
2    *
3    *  Copyright 2004-2005 The Apache Software Foundation
4    *
5    *  Licensed under the Apache License, Version 2.0 (the "License");
6    *  you may not use this file except in compliance with the License.
7    *  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *
15   *  See the License for the specific language governing permissions and
16   *  limitations under the License.
17   */
18  package org.apache.geronimo.interop.rmi.iiop;
19  
20  import java.util.HashMap  ;
21  
22  public abstract class RemoteObject {
23  
24      protected HashMap     methods = new HashMap  (10);
25  
26      public RemoteObject( ) {
27          registerMethods();
28      }
29  
30      protected void registerMethods() {
31          registerMethod("_is_a", -1);
32      }
33  
34      protected void registerMethod( String   methodName, int id )
35      {
36          methods.put( methodName, new Integer  (id) );
37      }
38  
39      protected Integer   getMethodId( String   methodName )
40      {
41          return (Integer  )methods.get( methodName );
42      }
43  
44      public void invoke(int id, byte[] objectKey, Object   instance, ObjectInputStream input, ObjectOutputStream output) {
45          switch (id) {
46              case -1:
47                  {
48                      output.writeBoolean(_is_a(objectKey));
49                      break;
50                  }
51          }
52      }
53  
54      public boolean _is_a(byte[] objectKey) {
55          String   ids[] = getIds();
56          boolean isa = false;
57  
58          String   id = new String  (objectKey);
59  
60          if (ids != null && ids.length > 0) {
61              int i;
62              for (i = 0; i < ids.length && !isa; i++) {
63                  isa = ids[i].equals(id);
64  
65              }
66          }
67  
68          return isa;
69      }
70  
71      public abstract String  [] getIds();
72  }
73
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