2 * Copyright (C) 2001, 2002 The Mir-coders group
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4 * This file is part of Mir.
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6 * Mir is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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11 * Mir is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with Mir; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 * In addition, as a special exception, The Mir-coders gives permission to link
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21 * the code of this program with any library licensed under the Apache Software License,
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22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
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23 * (or with modified versions of the above that use the same license as the above),
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24 * and distribute linked combinations including the two. You must obey the
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25 * GNU General Public License in all respects for all of the code used other than
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26 * the above mentioned libraries. If you modify this file, you may extend this
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27 * exception to your version of the file, but you are not obligated to do so.
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28 * If you do not wish to do so, delete this exception statement from your version.
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30 package mircoders.media;
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32 import mir.entity.Entity;
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33 import mir.storage.Database;
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34 import java.util.Map;
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35 import java.util.HashMap;
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36 import mircoders.global.*;
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37 import mircoders.storage.*;
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39 import mircoders.localizer.MirLocalizerExc;
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42 * helper class to resolve media handlers using reflection
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49 public final class MediaHelper {
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50 private static Map nameToMediaHandler = new HashMap();
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51 private static String defaultMediaHandler = null;
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53 public static void addHandler(String aName, MediaHandler aHandler) {
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54 synchronized (nameToMediaHandler) {
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55 nameToMediaHandler.put(aName, aHandler);
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59 public static MediaHandler getHandler(Entity aMediaType) throws MediaExc, MediaFailure {
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60 String handlerName = aMediaType.getValue("classname");
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63 return MirGlobal.localizer().media().getHandler(handlerName);
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65 catch (MirLocalizerExc e) {
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66 throw new MediaFailure(e);
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70 public static Database getStorage(Entity mediaType, String aTable) throws MediaExc, MediaFailure {
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71 if (aTable.equals("Images"))
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72 return DatabaseImages.getInstance();
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73 else if (aTable.equals("Audio"))
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74 return DatabaseAudio.getInstance();
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75 if (aTable.equals("Video"))
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76 return DatabaseVideo.getInstance();
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77 if (aTable.equals("Other"))
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78 return DatabaseOther.getInstance();
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80 throw new MediaExc("Unknown storage specification: " + aTable);
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