RepositoryFile


1   /*
2    * RepositoryFolder.java
3    *
4    * All rights reserved.
5    * Copyright (C) 2005 JasperSoft Corporation
6    *
7    * JasperSoft Corporation
8    * 303 Second Street, Suite 450 North
9    * San Francisco, CA 94107
10   * http://www.jaspersoft.com
11   *
12   *
13   * Created on April 1, 2006, 3:46 PM
14   *
15   */
16  
17  package com.jaspersoft.jasperserver.irplugin;
18  
19  import com.jaspersoft.jasperserver.api.metadata.xml.domain.impl.ResourceDescriptor;
20  import java.io.File  ;
21  
22  
23  /**
24   *
25   * @author gtoffoli
26   */
27  public class RepositoryFile extends RepositoryFolder {
28  
29      private String   localFileName = null;
30      
31      
32      /** Creates a new instance of RepositoryFolder */
33      public RepositoryFile(JServer server, ResourceDescriptor descriptor) {
34          super( server, descriptor);
35      }
36  
37      public String   toString()
38      {
39          if (getDescriptor() != null)
40          {
41              return ""+getDescriptor().getLabel();
42          }   
43          return "???";
44      }
45      
46      /**
47       * This method return the file rapresented by this resource file.
48       * The file is cached in a temporary directory for subsequent calls to this method.
49       * Please note: the file is never removed... a delete of this file should be done
50       * on plugin startup....
51       * The method returns the cached file name.
52       *
53       */
54      public String   getFile() throws Exception  
55      {
56          if (localFileName == null)
57          {
58              String   localFile = IRPlugin.getMainInstance().createTmpFileName("img",null);
59              try {
60                  //System.out.println("File saved here: " + localFile);
61                  getServer().getWSClient().get(getDescriptor(), new File  (localFile));
62              } catch (Exception   ex)
63              {
64                  ex.printStackTrace();
65              }
66              
67              this.localFileName = localFile;
68          }
69          return localFileName;
70      }
71      
72      /**
73       * If localFileName exists, remove it and set localFileName to NULL.
74       */
75      public void resetFileCache()
76      {
77          if (localFileName != null)
78          {
79              File   f = new File  (localFileName);
80              if (f.exists())
81              {
82                  f.delete();
83              }
84          }
85          
86          localFileName = null;
87      }
88  
89  }
90
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