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1   /*
2    * Copyright (c) 2002-2020, City of Paris
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
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.plugins.document.web;
35  
36  import fr.paris.lutece.plugins.document.business.DocumentHome;
37  import fr.paris.lutece.plugins.document.business.DocumentResource;
38  import fr.paris.lutece.plugins.document.utils.IntegerUtils;
39  
40  import javax.servlet.http.HttpServletRequest;
41  
42  
43  /**
44   * JSP Bean for document file resource management
45   */
46  public class ResourceJspBean
47  {
48      //////////////////////////////////////////////////////////////////////////////
49      // Constants
50  
51      // Parameters
52      private static final String PARAMETER_DOCUMENT_ID = "id_document";
53      private static final String PARAMETER_ATTRIBUTE_ID = "id_attribute";
54      private DocumentResource _resource;
55  
56      /**
57       * Load a file resource corresponding to a file attribute of a document
58       * @param request The HTTP request
59       */
60      public void loadResource( HttpServletRequest request )
61      {
62          String strDocumentId = request.getParameter( PARAMETER_DOCUMENT_ID );
63          int nDocumentId = IntegerUtils.convert( strDocumentId );
64  
65          String strAttributeId = request.getParameter( PARAMETER_ATTRIBUTE_ID );
66          int nAttributeId = IntegerUtils.convert( strAttributeId );
67  
68          _resource = DocumentHome.getValidatedResource( nDocumentId, nAttributeId );
69      }
70  
71      /**
72       * Returns the content of the file resource
73       * @return The content of the file resource
74       */
75      public byte[] getContent(  )
76      {
77          return _resource.getContent(  );
78      }
79  
80      /**
81       * Returns the content type of the file resource
82       * @return The content type of the file resource
83       */
84      public String getContentType(  )
85      {
86          return _resource.getContentType(  );
87      }
88  }