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1   /* 
2    * Copyright (c) 2007, Fraunhofer-Gesellschaft
3    * All rights reserved.
4    * 
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions are
7    * met:
8    * 
9    * (1) Redistributions of source code must retain the above copyright
10   *     notice, this list of conditions and the disclaimer at the end.
11   *     Redistributions in binary form must reproduce the above copyright
12   *     notice, this list of conditions and the following disclaimer in
13   *     the documentation and/or other materials provided with the
14   *     distribution.
15   * 
16   * (2) Neither the name of Fraunhofer nor the names of its
17   *     contributors may be used to endorse or promote products derived
18   *     from this software without specific prior written permission.
19   * 
20   * DISCLAIMER
21   * 
22   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33   *  
34   */
35  package org.ogf.graap.wsag.client.impl;
36  
37  import javax.security.auth.login.LoginContext;
38  
39  import org.ogf.graap.wsag.api.client.AgreementFactoryRegistryClient;
40  import org.w3.x2005.x08.addressing.EndpointReferenceType;
41  
42  /**
43   * DefaultAgreementFactoryCreator
44   * 
45   * @author Oliver Waeldrich
46   * 
47   */
48  public class DefaultAgreementFactoryRegistryBuilder implements AgreementFactoryRegistryBuilder
49  {
50  
51      private static AgreementFactoryRegistryBuilder instance;
52  
53      /*
54       * TODO: Make the implementation class of the factory builder configurable
55       */
56      private static synchronized AgreementFactoryRegistryBuilder getInstance() throws Exception
57      {
58          if ( instance == null )
59          {
60              Class<?> clazz =
61                  Class.forName( "org.ogf.graap.wsag.client.impl.WSAG4JAgreementFactoryRegistryBuilder" );
62              instance = (AgreementFactoryRegistryBuilder) clazz.newInstance();
63          }
64          return instance;
65      }
66  
67      /**
68       * {@inheritDoc}
69       * 
70       * @see org.ogf.graap.wsag.client.impl.AgreementFactoryRegistryBuilder#newInstance(EndpointReferenceType)
71       */
72      public AgreementFactoryRegistryClient newInstance( EndpointReferenceType epr ) throws Exception
73      {
74          return getInstance().newInstance( epr );
75      }
76  
77      /**
78       * {@inheritDoc}
79       * 
80       * @see org.ogf.graap.wsag.client.impl.AgreementFactoryRegistryBuilder#newInstance(org.w3.x2005.x08.addressing.EndpointReferenceType
81       *      , javax.security.auth.login.LoginContext)
82       */
83      public AgreementFactoryRegistryClient newInstance( EndpointReferenceType epr, LoginContext context )
84          throws Exception
85      {
86          return getInstance().newInstance( epr, context );
87      }
88  }