Java example source code file (GetDevice.java)

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Java - Java tags/keywords

audio, exception, fakeinfo, getdevice, midi, mididevice, object, runtimeexception, softprovider, softsynthesizer, sound

The GetDevice.java Java example source code

/*
 * 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.
 *
 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/* @test
   @summary Test SoftProvider getDevice method */

import javax.sound.midi.MidiDevice;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Patch;
import javax.sound.sampled.*;
import javax.sound.midi.MidiDevice.Info;

import com.sun.media.sound.*;

public class GetDevice {

    private static void assertEquals(Object a, Object b) throws Exception
    {
        if(!a.equals(b))
            throw new RuntimeException("assertEquals fails!");
    }

    private static void assertTrue(boolean value) throws Exception
    {
        if(!value)
            throw new RuntimeException("assertTrue fails!");
    }


    private static class FakeInfo extends Info {
        public FakeInfo() {
            super("a", "b", "c", "d");
        }
    }

    public static void main(String[] args) throws Exception {
        SoftProvider provider = new SoftProvider();
        Info[] infos = provider.getDeviceInfo();
        assertTrue(infos.length > 0);
        for (int i = 0; i < infos.length; i++) {
            assertTrue(infos[i] != null);
            MidiDevice d = provider.getDevice(infos[i]);
            assertTrue(d instanceof SoftSynthesizer);
        }
        assertTrue(provider.getDevice(new FakeInfo()) == null);

    }
}