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1   /**
2    * This file Copyright (c) 2010-2011 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.module.blossom.multipart;
35  
36  import java.io.File;
37  import java.io.IOException;
38  import java.io.InputStream;
39  import java.io.Serializable;
40  
41  import org.apache.commons.io.FileUtils;
42  import org.apache.commons.io.IOUtils;
43  import org.springframework.web.multipart.MultipartFile;
44  
45  import info.magnolia.cms.beans.runtime.Document;
46  
47  /**
48   * Implementation of MultipartFile that acts as an adapter onto Magnolias Document class.
49   *
50   * @see org.springframework.web.multipart.MultipartFile
51   * @see info.magnolia.cms.beans.runtime.Document
52   * @since 1.1.1
53   */
54  public class BlossomMultipartFile implements MultipartFile, Serializable {
55  
56      private Document document;
57  
58      public BlossomMultipartFile(Document document) {
59          this.document = document;
60      }
61  
62      @Override
63      public byte[] getBytes() throws IOException {
64          return IOUtils.toByteArray(document.getStream());
65      }
66  
67      @Override
68      public String getContentType() {
69          return document.getType();
70      }
71  
72      @Override
73      public InputStream getInputStream() throws IOException {
74          return document.getStream();
75      }
76  
77      @Override
78      public String getName() {
79          return document.getAtomName();
80      }
81  
82      @Override
83      public String getOriginalFilename() {
84          return document.getFileNameWithExtension();
85      }
86  
87      @Override
88      public long getSize() {
89          return document.getLength();
90      }
91  
92      @Override
93      public boolean isEmpty() {
94          return document.getLength() <= 0;
95      }
96  
97      @Override
98      public void transferTo(File destination) throws IOException, IllegalStateException {
99  
100         // Delete the destination file if it already exists.
101         if (destination.exists() && !destination.delete()) {
102             throw new IOException("Destination file [" + destination.getAbsolutePath() + "] already exists and could not be deleted");
103         }
104 
105         // The Magnolia multipart filter already wrote the file to disk, so we only need to copy to the new destination.
106         FileUtils.copyFile(document.getFile(), destination);
107     }
108 }