Java example source code file (GetReceiver2.java)

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Java - Java tags/keywords

audio, audiosynthesizer, dummysourcedataline, exception, getreceiver2, midi, runtimeexception, shortmessage, softsynthesizer, sound

The GetReceiver2.java Java example source code

/*
 * Copyright (c) 2008, 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 SoftSynthesizer getReceiver method */

import javax.sound.midi.Receiver;
import javax.sound.midi.ShortMessage;

import com.sun.media.sound.AudioSynthesizer;
import com.sun.media.sound.SoftSynthesizer;

public class GetReceiver2 {

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

    public static void main(String[] args) throws Exception {
        AudioSynthesizer synth = new SoftSynthesizer();
        Receiver recv = synth.getReceiver();
        assertTrue(recv != null);
        ShortMessage sm = new ShortMessage();
        sm.setMessage(ShortMessage.NOTE_OFF, 0, 64, 64);
        synth.open(new DummySourceDataLine(), null);
        recv.send(sm, -1);
        synth.close();
        try
        {
            recv.send(sm, -1);
            throw new RuntimeException("Exception not thrown!");
        }
        catch(Exception e)
        {
            // Just checking if exception is thrown
        }
    }
}