JRJdk14ImageReader


1   /*
2    * ============================================================================
3    * GNU Lesser General Public License
4    * ============================================================================
5    *
6    * JasperReports - Free Java report-generating library.
7    * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8    * 
9    * This library is free software; you can redistribute it and/or
10   * modify it under the terms of the GNU Lesser General Public
11   * License as published by the Free Software Foundation; either
12   * version 2.1 of the License, or (at your option) any later version.
13   * 
14   * This library is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17   * Lesser General Public License for more details.
18   * 
19   * You should have received a copy of the GNU Lesser General Public
20   * License along with this library; if not, write to the Free Software
21   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
22   * 
23   * JasperSoft Corporation
24   * 303 Second Street, Suite 450 North
25   * San Francisco, CA 94107
26   * http://www.jaspersoft.com
27   */
28  package net.sf.jasperreports.engine.util;
29  
30  import java.awt.Image  ;
31  import java.io.ByteArrayInputStream  ;
32  import java.io.IOException  ;
33  import java.io.InputStream  ;
34  
35  import javax.imageio.ImageIO  ;
36  
37  import net.sf.jasperreports.engine.JRException;
38  
39  
40  /**
41   * @author Teodor Danciu (teodord@users.sourceforge.net)
42   * @version $Id: JRImageLoader.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
43   */
44  public class JRJdk14ImageReader implements JRImageReader
45  {
46  
47  
48      /**
49       *
50       */
51      public Image   readImage(byte[] bytes) throws JRException
52      {
53          InputStream   bais = new ByteArrayInputStream  (bytes);
54  
55          Image   image = null;
56          try
57          {
58              image = ImageIO.read(bais);
59          }
60          catch (IOException   e)
61          {
62              throw new JRException(e);
63          }
64          finally
65          {
66              try
67              {
68                  bais.close();
69              }
70              catch (IOException   e)
71              {
72              }
73          }
74  
75          if (image == null)
76          {
77              throw new JRException("Image read failed.");
78          }
79  
80          return image;
81      }
82  
83  
84  }
85
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