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1   /*
2    *   Copyright 2004 The Apache Software Foundation
3    *
4    *   Licensed under the Apache License, Version 2.0 (the "License");
5    *   you may not use this file except in compliance with the License.
6    *   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,
12   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *   See the License for the specific language governing permissions and
14   *   limitations under the License.
15   *
16   */
17  package org.apache.ldap.server.invocation;
18  
19  
20  import java.util.ArrayList;
21  import java.util.Collections;
22  import java.util.List;
23  
24  import javax.naming.Context;
25  
26  import org.apache.ldap.server.partition.ContextPartitionNexus;
27  
28  
29  /***
30   * Represents a call from JNDI {@link Context} to {@link ContextPartitionNexus}.
31   *
32   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
33   * @version $Rev: 264732 $, $Date: 2005-08-30 04:04:51 -0400 (Tue, 30 Aug 2005) $
34   */
35  public class Invocation
36  {
37      private final Context caller;
38      private final String name;
39      private final List parameters;
40      
41      /***
42       * Creates a new instance that represents an invocation without parameters.
43       * 
44       * @parem caller the JNDI {@link Context} that made this invocation
45       * @param name the name of the called method
46       */
47      public Invocation( Context caller, String name )
48      {
49          this( caller, name, null );
50      }
51  
52      /***
53       * Creates a new instance.
54       * 
55       * @parem caller the JNDI {@link Context} that made this invocation
56       * @param name the name of the called method
57       * @param parameters the array of parameters passed to the called method
58       */
59      public Invocation( Context caller, String name, Object[] parameters )
60      {
61          if( caller == null )
62          {
63              throw new NullPointerException( "caller" );
64          }
65          if( name == null )
66          {
67              throw new NullPointerException( "name" );
68          }
69          
70          if( parameters == null )
71          {
72              parameters = new Object[ 0 ];
73          }
74          
75          this.caller = caller;
76          this.name = name;
77          
78          List paramList = new ArrayList();
79          for( int i = 0; i < parameters.length; i++ )
80          {
81              paramList.add( parameters[ i ] );
82          }
83          
84          this.parameters = Collections.unmodifiableList( paramList );
85      }
86      
87      /***
88       * Returns the JNDI {@link Context} which made this invocation.
89       */
90      public Context getCaller()
91      {
92          return caller;
93      }
94      
95      /***
96       * Returns the name of the called method.
97       */
98      public String getName()
99      {
100         return name;
101     }
102     
103     /***
104      * Returns the list of parameters parameters passed to the called method.
105      */
106     public List getParameters()
107     {
108         return parameters;
109     }
110 }