1 /**
2 * This file Copyright (c) 2010 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 info.magnolia.cms.beans.runtime.Document;
37 import org.apache.commons.io.FileUtils;
38 import org.apache.commons.io.IOUtils;
39 import org.springframework.web.multipart.MultipartFile;
40
41 import java.io.File;
42 import java.io.IOException;
43 import java.io.InputStream;
44 import java.io.Serializable;
45
46 /**
47 * Implementation of MultipartFile that acts as an adapter onto Magnolias Document class.
48 *
49 * @see org.springframework.web.multipart.MultipartFile
50 * @see info.magnolia.cms.beans.runtime.Document
51 */
52 public class BlossomMultipartFile implements MultipartFile, Serializable {
53
54 private Document document;
55
56 public BlossomMultipartFile(Document document) {
57 this.document = document;
58 }
59
60 public byte[] getBytes() throws IOException {
61 return IOUtils.toByteArray(document.getStream());
62 }
63
64 public String getContentType() {
65 return document.getType();
66 }
67
68 public InputStream getInputStream() throws IOException {
69 return document.getStream();
70 }
71
72 public String getName() {
73 return document.getAtomName();
74 }
75
76 public String getOriginalFilename() {
77 return document.getFileNameWithExtension();
78 }
79
80 public long getSize() {
81 return document.getLength();
82 }
83
84 public boolean isEmpty() {
85 return document.getLength() <= 0;
86 }
87
88 public void transferTo(File destination) throws IOException, IllegalStateException {
89
90 // Delete the destination file if it already exists.
91 if (destination.exists() && !destination.delete()) {
92 throw new IOException("Destination file [" + destination.getAbsolutePath() + "] already exists and could not be deleted");
93 }
94
95 // The Magnolia multipart filter already wrote the file to disk, so we only need to copy to the new destination.
96 FileUtils.copyFile(document.getFile(), destination);
97 }
98 }