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1   //----------------------------------------------------------------------
2   // 
3   // PerfectJPattern: "Design patterns are good but components are better!" 
4   // ImageProxy.java Copyright (c) 2009 Giovanni Azua Garcia
5   // bravegag@hotmail.com
6   //  
7   // This program is free software; you can redistribute it and/or
8   // modify it under the terms of the GNU General Public License
9   // as published by the Free Software Foundation; either version 3
10  // of the License, or (at your option) any later version.
11  //
12  // This program is distributed in the hope that it will be useful,
13  // but WITHOUT ANY WARRANTY; without even the implied warranty of
14  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  // GNU General Public License for more details.
16  //
17  // You should have received a copy of the GNU General Public License
18  // along with this program; if not, see <http://www.gnu.org/licenses/>.
19  //
20  //----------------------------------------------------------------------
21  package org.perfectjpattern.core.structural.proxy;
22  
23  import java.lang.reflect.*;
24  
25  import org.slf4j.*;
26  
27  /**
28   * Proxy that control access to Image instances
29   *
30   * @author <a href="mailto:bravegag@hotmail.com">Giovanni Azua</a>
31   * @version $Revision: 1.0 $Date: Apr 5, 2008 11:57:56 PM $
32   */
33  public 
34  class ImageProxy
35  extends AbstractProxy<IGraphic>
36  {
37      //------------------------------------------------------------------------
38      // public
39      //------------------------------------------------------------------------
40      public 
41      ImageProxy(IGraphic aComponent)
42      {
43          super(IGraphic.class, aComponent);
44      }
45  
46      //------------------------------------------------------------------------
47      @Override
48      protected Object 
49      invokeUnderlying(Method aMethod, Object[] anArguments)
50      throws Throwable
51      {
52          if (!theLoaded)
53          {
54              theLogger.debug("Proxy is now loading the Image ...");
55              
56              theLoaded = true;
57          }
58          
59          return super.invokeUnderlying(aMethod, anArguments);
60      }           
61      
62      //------------------------------------------------------------------------
63      // protected
64      //------------------------------------------------------------------------
65      protected static void
66      setLogger(Logger aLogger)
67      {
68          theLogger = aLogger;
69      }
70  
71      //------------------------------------------------------------------------
72      // members
73      //------------------------------------------------------------------------
74      private boolean theLoaded;
75  
76      /**
77       * Provides logging facilities for this class instance 
78       */
79      private static Logger theLogger = LoggerFactory.getLogger(Image.class);
80  }