/*
  * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */

package com.sun.media.sound;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.Soundbank;
import javax.sound.midi.spi.SoundbankReader;

/**
 * This class is used to connect the DLSSoundBank class
 * to the SoundbankReader SPI interface.
 *
 * @author Karl Helgason
 */
public class DLSSoundbankReader extends SoundbankReader {

    public Soundbank getSoundbank(URL url)
            throws InvalidMidiDataException, IOException {
        try {
            return new DLSSoundbank(url);
        } catch (RIFFInvalidFormatException e) {
            return null;
        }
    }

    public Soundbank getSoundbank(InputStream stream)
            throws InvalidMidiDataException, IOException {
        try {
            stream.mark(512);
            return new DLSSoundbank(stream);
        } catch (RIFFInvalidFormatException e) {
            stream.reset();
            return null;
        }
    }

    public Soundbank getSoundbank(File file)
            throws InvalidMidiDataException, IOException {
        if (!file.getPath().toLowerCase().endsWith(".dls"))
            return null;
        try {
            return new DLSSoundbank(file);
        } catch (RIFFInvalidFormatException e) {
            return null;
        }
    }
}