Checks if a given receiver is already connected to the Midi device - Java javax.sound.midi

Java examples for javax.sound.midi:MidiDevice

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Description

Checks if a given receiver is already connected to the Midi device

Demo Code

/*//from   w w w  .  ja v a 2 s  .  co  m
 * Copyright (c) 1999 - 2001 by Matthias Pfisterer
 * Copyright (c) 2003 by Florian Bomers
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.MetaMessage;
import javax.sound.midi.MidiDevice;
import javax.sound.midi.MidiMessage;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Receiver;
import javax.sound.midi.ShortMessage;
import javax.sound.midi.SysexMessage;
import javax.sound.midi.Transmitter;
import org.apache.log4j.Logger;

public class Main{
    /**
     * Checks if a given receiver is already connected to the device
     * 
     * @param device
     *            The midi device
     * @param receiver
     *            The receiver
     * @return <TRUE> if receiver is already used by the device, else <FALSE>
     */
    public static boolean isReceiverUsedByDevice(MidiDevice device,
            Receiver receiver) {

        boolean used = false;
        for (Transmitter transmitter : device.getTransmitters()) {

            if (transmitter.getReceiver().getClass()
                    .equals(receiver.getClass())) {
                used = true;
            }
        }

        return used;
    }
}

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