/*
* Copyright (c) 2007, 2013, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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.
*
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package com.sun.media.sound;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.Soundbank;
import javax.sound.midi.spi.SoundbankReader;
import sun.reflect.misc.ReflectUtil;
/**
* JarSoundbankReader is used to read soundbank object from jar files.
*
* @author Karl Helgason
*/
public final class JARSoundbankReader extends SoundbankReader {
private static boolean isZIP(URL url) {
boolean ok = false;
try {
InputStream stream = url.openStream();
try {
byte[] buff = new byte[4];
ok = stream.read(buff) == 4;
if (ok) {
ok = (buff[0] == 0x50
&& buff[1] == 0x4b
&& buff[2] == 0x03
&& buff[3] == 0x04);
}
} finally {
stream.close();
}
} catch (IOException e) {
}
return ok;
}
public Soundbank getSoundbank(URL url)
throws InvalidMidiDataException, IOException {
if (!isZIP(url))
return null;
ArrayList<Soundbank> soundbanks = new ArrayList<Soundbank>();
URLClassLoader ucl = URLClassLoader.newInstance(new URL[]{url});
InputStream stream = ucl.getResourceAsStream(
"META-INF/services/javax.sound.midi.Soundbank");
if (stream == null)
return null;
try
{
BufferedReader r = new BufferedReader(new InputStreamReader(stream));
String line = r.readLine();
while (line != null) {
if (!line.startsWith("#")) {
try {
Class<?> c = Class.forName(line.trim(), false, ucl);
if (Soundbank.class.isAssignableFrom(c)) {
Object o = ReflectUtil.newInstance(c);
soundbanks.add((Soundbank) o);
}
} catch (ClassNotFoundException ignored) {
} catch (InstantiationException ignored) {
} catch (IllegalAccessException ignored) {
}
}
line = r.readLine();
}
}
finally
{
stream.close();
}
if (soundbanks.size() == 0)
return null;
if (soundbanks.size() == 1)
return soundbanks.get(0);
SimpleSoundbank sbk = new SimpleSoundbank();
for (Soundbank soundbank : soundbanks)
sbk.addAllInstruments(soundbank);
return sbk;
}
public Soundbank getSoundbank(InputStream stream)
throws InvalidMidiDataException, IOException {
return null;
}
public Soundbank getSoundbank(File file)
throws InvalidMidiDataException, IOException {
return getSoundbank(file.toURI().toURL());
}
}