2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
30 package mircoders.media;
32 import mir.changetracker.ChangeTracker;
33 import mir.changetracker.ChangeType;
34 import mir.entity.Entity;
35 import mir.media.MediaExc;
36 import mir.media.MediaFailure;
37 import mir.media.MediaHandler;
38 import mir.misc.StringUtil;
39 import mircoders.global.MirGlobal;
43 public abstract class AbstractMediaHandler implements MediaHandler {
44 protected InputStream getStorageInputStream(Entity aMedia, Entity aMediaType) throws MediaExc, MediaFailure {
46 return new FileInputStream(getMediaStorageFile(aMedia, aMediaType));
49 throw new MediaFailure(e);
53 protected OutputStream getStorageOutputStream(Entity aMedia, Entity aMediaType) throws MediaExc, MediaFailure {
55 return new FileOutputStream(getMediaStoragePath(aMedia, aMediaType));
58 throw new MediaFailure(e);
62 protected String getRelativeMediaStoragePath(Entity aMedia, Entity aMediaType) {
63 String publishPath = aMedia.getFieldValue("publish_path");
65 if (publishPath==null || publishPath.length()==0) {
66 String extension = aMediaType.getFieldValue("name");
67 String mediaFileName = aMedia.getId() + "." + extension;
68 String date = aMedia.getFieldValue("date");
69 String datePath = StringUtil.webdbDate2path(date);
71 return datePath + "/" + mediaFileName;
77 protected String getMediaStoragePath(Entity aMedia, Entity aMediaType) throws MediaExc, MediaFailure {
78 return getBaseStoragePath() + "/" + getRelativeMediaStoragePath(aMedia, aMediaType);
81 protected final File getMediaStorageFile(Entity aMedia, Entity aMediaType) throws MediaExc, MediaFailure {
82 return new File(getMediaStoragePath(aMedia, aMediaType));
86 * Report filesystem changes to the ChangeTracker.
88 protected void reportChange(String imagePath) {
89 ChangeTracker tracker = MirGlobal.getChangeEngine().getTracker();
90 tracker.addChange(imagePath, ChangeType.MODIFICATION);