Examples of javax.sound.midi.SysexMessage

javax.sound.midi.SysexMessage
A SysexMessage object represents a MIDI system exclusive message.
When a system exclusive message is read from a MIDI file, it always has a defined length. Data from a system exclusive message from a MIDI file should be stored in the data array of a SysexMessage as follows: the system exclusive message status byte (0xF0 or 0xF7), all message data bytes, and finally the end-of-exclusive flag (0xF7). The length reported by the SysexMessage object is therefore the length of the system exclusive data plus two: one byte for the status byte and one for the end-of-exclusive flag.
As dictated by the Standard MIDI Files specification, two status byte values are legal for a SysexMessage read from a MIDI file:
- 0xF0: System Exclusive message (same as in MIDI wire protocol)
- 0xF7: Special System Exclusive message
When Java Sound is used to handle system exclusive data that is being received using MIDI wire protocol, it should place the data in one or more SysexMessages. In this case, the length of the system exclusive data is not known in advance; the end of the system exclusive data is marked by an end-of-exclusive flag (0xF7) in the MIDI wire byte stream.
- 0xF0: System Exclusive message (same as in MIDI wire protocol)
- 0xF7: End of Exclusive (EOX)
The first SysexMessage object containing data for a particular system exclusive message should have the status value 0xF0. If this message contains all the system exclusive data for the message, it should end with the status byte 0xF7 (EOX). Otherwise, additional system exclusive data should be sent in one or more SysexMessages with a status value of 0xF7. The SysexMessage containing the last of the data for the system exclusive message should end with the value 0xF7 (EOX) to mark the end of the system exclusive message.
If system exclusive data from SysexMessages objects is being transmitted using MIDI wire protocol, only the initial 0xF0 status byte, the system exclusive data itself, and the final 0xF7 (EOX) byte should be propagated; any 0xF7 status bytes used to indicate that a SysexMessage contains continuing system exclusive data should not be propagated via MIDI wire protocol. @author David Rivas @author Kara Kytle @author Florian Bomers

    /**
     * test method setMessage(int, byte[], int)
     *
     */
    public void test_setMessage2() throws Exception {
        SysexMessage message = new SysexMessage();
        try {
            message.setMessage(34, new byte[] {1, 2}, 2);
            fail("InvalidMidiDataException expected");
        } catch (InvalidMidiDataException e) {}
        
        /*
         * it's all right
         */
        message.setMessage(240, new byte[] {1, 2}, 2);
        message.setMessage(247, new byte[] {34, -42}, 2);
        
        assertEquals(3, message.getLength());
        assertEquals(247, message.getStatus());
        assertEquals(3, message.getMessage().length);
        assertEquals(-9, message.getMessage()[0]);
        assertEquals(34, message.getMessage()[1]);
        assertEquals(-42, message.getMessage()[2]);
        assertEquals(2, message.getData().length);
        assertEquals(34, message.getData()[0]);
        assertEquals(-42, message.getData()[1]);
        
        message.setMessage(240, new byte[] {12, 47, -9}, 1);
        assertEquals(2, message.getLength());
        assertEquals(240, message.getStatus());
        assertEquals(2, message.getMessage().length);
        assertEquals(-16, message.getMessage()[0]);
        assertEquals(12, message.getMessage()[1]);
        assertEquals(1, message.getData().length);
        assertEquals(12, message.getData()[0]);
        
        message.setMessage(240, new byte[] {12, 4, 9}, 0);
        assertEquals(1, message.getLength());
        assertEquals(240, message.getStatus());
        assertEquals(1, message.getMessage().length);
        assertEquals(-16, message.getMessage()[0]);
        assertEquals(0, message.getData().length);
        
        try {
            message.setMessage(247, new byte[] {1, 2, 3}, 4);
            fail("IndexOutOfBoundsException expected");
        } catch (IndexOutOfBoundsException e) {}
        
        try {
            message.setMessage(247, new byte[] {1, 2, 3}, -1);
            fail("IndexOutOfBoundsException expected");
        } catch (IndexOutOfBoundsException e) {}
        
        message.setMessage(247, new byte[0], 0);
        assertEquals(1, message.getLength());
        assertEquals(247, message.getStatus());
        assertEquals(1, message.getMessage().length);
        assertEquals(-9, message.getMessage()[0]);
        assertEquals(0, message.getData().length);
        
        try {
            message.setMessage(247, null, 0);
            fail("NullPointerException expected");
        } catch (NullPointerException e) {}
    }

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    /**
     * Test method clone() of class SysexMessage.
     */
    public void test_clone2() throws Exception {
        SysexMessage message = new SysexMessage();


        message.setMessage(240, new byte[] { 23, 45, -90 }, 2);


        assertTrue(message.clone() != message);
        assertEquals(message.clone().getClass(), message.getClass());
        SysexMessage tmessage;
        tmessage = (SysexMessage) message.clone();
        assertEquals(message.getLength(), tmessage.getLength());
        assertEquals(message.getMessage().length, tmessage.getMessage().length);
        assertEquals(message.getData().length, tmessage.getData().length);
        if (message.getData().length != 0) {
            for (int i = 0; i < message.getData().length; i++) {
                assertEquals(message.getData()[i], tmessage.getData()[i]);
            }
        }
        if (message.getMessage().length != 0) {
            for (int i = 0; i < message.getMessage().length; i++) {
                assertEquals(message.getMessage()[i], tmessage.getMessage()[i]);
            }
        }
    }

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    public void test_clone3() throws Exception {
        byte[] bt = new byte[] {1, 2, 3, 4};
        SysexMessage1 message = new SysexMessage1(bt);
        assertTrue(message.clone() != message);
        
        SysexMessage tmessage;
        tmessage = (SysexMessage) message.clone();
        bt[0] = 34;
        bt[1] = 15;
        bt[2] = 89;
        bt[3] = 1;
        assertEquals(message.getLength(), tmessage.getLength());
        assertEquals(message.getMessage().length, tmessage.getMessage().length);
        assertEquals(message.getData().length, tmessage.getData().length);
        /*
         * 'real' SysexMessage change, but 'clone' not
         */
        //'real'
        assertEquals(15, message.getData()[0]);
        assertEquals(89, message.getData()[1]);
        assertEquals(1, message.getData()[2]);
        assertEquals(34, message.getMessage()[0]);
        assertEquals(15, message.getMessage()[1]);
        assertEquals(89, message.getMessage()[2]);
        assertEquals(1, message.getMessage()[3]);
        //'clone'
        assertEquals(2, tmessage.getData()[0]);
        assertEquals(3, tmessage.getData()[1]);
        assertEquals(4, tmessage.getData()[2]);
        assertEquals(1, tmessage.getMessage()[0]);
        assertEquals(2, tmessage.getMessage()[1]);
        assertEquals(3, tmessage.getMessage()[2]);
        assertEquals(4, tmessage.getMessage()[3]);
    }

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      bytes[i] = getByte(i);
      cksum += bytes[i];
    }
    bytes[116] = (byte) (cksum & 0x7F); // CKSUM
    bytes[117] = (byte) 0xF7; // EOX
    SysexMessage sms = new SysexMessage();
    try {
      sms.setMessage(bytes, bytes.length);
    } catch (InvalidMidiDataException e) {
      return null;
    }
    return sms;
  }

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  }


  public void emitFxChange(Object src, int fx, byte[] ah_al, int value) {
    assertValidFXNumber(fx);
    assertValidMidiValue(value, "sys ex value");
    SysexMessage sms = new SysexMessage();
    byte[] bytes = new byte[14];
    bytes[0] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[1] = RackAttack.WALDORF_MANUFACTURER_BYTE; // Waldorf (IDW)
    bytes[2] = RackAttack.RACK_ATTACK_MODEL_BYTE; // RackAttack (IDM)
    bytes[3] = 0x00; // Default ID (IDD)
    // OS Version 1.05 seems to transmit SNDP twice
    // works only this way (captured from RackAttack output)
    bytes[4] = RackAttack.FX_CHANGE; // CMD (SNDP)
    bytes[5] = RackAttack.EDIT_BUFFER; // CMD (SNDP)
    bytes[6] = (byte) (fx & 0xFF); // SNDN
    bytes[7] = ah_al[0]; // PAH
    bytes[8] = ah_al[1]; // PAL
    bytes[9] = (byte) (value & 0x7F); // SNDV
    bytes[10] = (byte) (bytes[4] + bytes[5] + bytes[6] + bytes[7]
        + bytes[8] + bytes[9] & 0x7F); // CKSUM
    // bytes[10]=(byte)RackAttack.TRUE_CKSUM; //CKSUM
    bytes[11] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX
    // a bit tricky but flushes SysEx-Buffers (in any sort of device)
    bytes[12] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[13] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX


    try {
      sms.setMessage(bytes, bytes.length);
      enqueueEvent(sms);
      JRackAttackFrame.getInstance().internalFxChange(
          new FXParameterEvent(src, fx, ah_al, value));
    } catch (InvalidMidiDataException e) {
      log.error("error", e);

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    }
  }


  public void emitGlobalChange(Object src, byte[] ah_al, int value) {
    assertValidMidiValue(value, "sys ex value");
    SysexMessage sms = new SysexMessage();
    byte[] bytes = new byte[12];
    bytes[0] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[1] = RackAttack.WALDORF_MANUFACTURER_BYTE; // Waldorf (IDW)
    bytes[2] = RackAttack.RACK_ATTACK_MODEL_BYTE; // RackAttack (IDM)
    bytes[3] = 0x00; // Default ID (IDD)
    bytes[4] = RackAttack.GLOBAL_CHANGE; // CMD (GLBP)
    bytes[5] = ah_al[0]; // PAH
    bytes[6] = ah_al[1]; // PAL
    bytes[7] = (byte) (value & 0xFF); // SNDV
    bytes[8] = (byte) (bytes[4] + bytes[5] + bytes[6] + bytes[7] & 0x7F); // CKSUM
    bytes[9] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX
    // a bit tricky but flushes SysEx-Buffers (in any sort of device)
    bytes[10] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[11] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX


    try {
      sms.setMessage(bytes, bytes.length);
      enqueueEvent(sms);
      // JRackAttackFrame.getInstance().internalParamChange(new
      // SoundParameterEvent(src, snd, ah_al, value));
    } catch (InvalidMidiDataException e) {
      log.error("error", e);

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  }


  public void emitProgramChange(Object src, int prg, byte[] ah_al, int value) {
    assertValidProgramNumber(prg);
    assertValidMidiValue(value, "sys ex value");
    SysexMessage sms = new SysexMessage();
    byte[] bytes = new byte[14];
    bytes[0] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[1] = RackAttack.WALDORF_MANUFACTURER_BYTE; // Waldorf (IDW)
    bytes[2] = RackAttack.RACK_ATTACK_MODEL_BYTE; // RackAttack (IDM)
    bytes[3] = 0x00; // Default ID (IDD)
    bytes[4] = RackAttack.PROGRAM_CHANGE; // CMD (SNDP)
    bytes[5] = RackAttack.EDIT_BUFFER; // CMD (SNDP)
    bytes[6] = (byte) (prg & 0xFF); // SNDN
    bytes[7] = ah_al[0]; // PAH
    bytes[8] = ah_al[1]; // PAL
    bytes[9] = (byte) (value & 0xFF); // SNDV
    bytes[10] = (byte) (bytes[4] + bytes[5] + bytes[6] + bytes[7]
        + bytes[8] + bytes[9] & 0x7F); // CKSUM
    // bytes[10]=(byte)RackAttack.TRUE_CKSUM; //CKSUM
    bytes[11] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX
    // a bit tricky but flushes SysEx-Buffers (in any sort of device)
    bytes[12] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[13] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX


    try {
      sms.setMessage(bytes, bytes.length);
      enqueueEvent(sms);
      JRackAttackFrame.getInstance().internalProgramChange(
          new ProgramParameterEvent(src, prg, ah_al, value));
    } catch (InvalidMidiDataException e) {
      log.error("error", e);

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  }


  public void emitPatternChange(Object src, int snd, byte[] ah_al, int value) {
    assertValidPatternNumber(snd);
    assertValidMidiValue(value, "sys ex value");
    SysexMessage sms = new SysexMessage();
    byte[] bytes = new byte[14];
    bytes[0] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[1] = RackAttack.WALDORF_MANUFACTURER_BYTE; // Waldorf (IDW)
    bytes[2] = RackAttack.RACK_ATTACK_MODEL_BYTE; // RackAttack (IDM)
    bytes[3] = 0x00; // Default ID (IDD)
    bytes[4] = RackAttack.PATTERN_CHANGE; // CMD (SNDP)
    bytes[5] = RackAttack.EDIT_BUFFER;
    bytes[6] = (byte) (snd & 0xFF); // SNDN
    bytes[7] = ah_al[0]; // PAH
    bytes[8] = ah_al[1]; // PAL
    bytes[9] = (byte) (value & 0xFF); // SNDV
    bytes[10] = (byte) (bytes[4] + bytes[5] + bytes[6] + bytes[7]
        + bytes[8] + bytes[9] & 0x7F); // CKSUM
    // bytes[10]=(byte)RackAttack.TRUE_CKSUM; //CKSUM
    bytes[11] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX
    // a bit tricky but flushes SysEx-Buffers (in any sort of device)
    bytes[12] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[13] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX


    try {
      sms.setMessage(bytes, bytes.length);
      enqueueEvent(sms);
      JRackAttackFrame.getInstance().internalPatternChange(
          new PatternParameterEvent(src, snd, ah_al, value));
    } catch (InvalidMidiDataException e) {
      log.error("error", e);

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     * log("<<<tracer>>>"); for(StackTraceElement
     * ste:Thread.currentThread().getStackTrace()) { log(ste.toString()); }
     */
    assertValidSoundNumber(snd);
    assertValidMidiValue(value, "sys ex value");
    SysexMessage sms = new SysexMessage();
    byte[] bytes = new byte[14];
    bytes[0] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[1] = RackAttack.WALDORF_MANUFACTURER_BYTE; // Waldorf (IDW)
    bytes[2] = RackAttack.RACK_ATTACK_MODEL_BYTE; // RackAttack (IDM)
    bytes[3] = 0x00; // Default ID (IDD)
    bytes[4] = RackAttack.SOUND_CHANGE; // CMD (SNDP)
    bytes[5] = RackAttack.EDIT_BUFFER; // CMD (SNDP)
    bytes[6] = (byte) (snd & 0xFF); // SNDN
    bytes[7] = ah_al[0]; // PAH
    bytes[8] = ah_al[1]; // PAL
    bytes[9] = (byte) (value & 0xFF); // SNDV
    bytes[10] = (byte) (bytes[4] + bytes[5] + bytes[6] + bytes[7]
        + bytes[8] + bytes[9] & 0x7F); // CKSUM
    // bytes[10]=(byte)RackAttack.TRUE_CKSUM; //CKSUM
    bytes[11] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX
    // a bit tricky but flushes SysEx-Buffers (in any sort of device)
    bytes[12] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[13] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX


    try {
      sms.setMessage(bytes, bytes.length);
      enqueueEvent(sms);
      JRackAttackFrame.getInstance().internalParamChange(
          new SoundParameterEvent(src, snd, ah_al, value));
    } catch (InvalidMidiDataException e) {
      log.error("error", e);

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    }
  }


  public void loadFXParameter(int fx, boolean buffer) {
    assertValidFXNumber(fx);
    SysexMessage sms = new SysexMessage();
    byte[] bytes = null;
    bytes = new byte[11];
    bytes[0] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[1] = RackAttack.WALDORF_MANUFACTURER_BYTE; // Waldorf (IDW)
    bytes[2] = RackAttack.RACK_ATTACK_MODEL_BYTE; // RackAttack (IDM)
    bytes[3] = 0x00; // Default ID (IDD)
    bytes[4] = RackAttack.FX_REQUEST; // CMD (SNDP)
    if (buffer) {
      bytes[5] = RackAttack.EDIT_BUFFER;
    } else {
      bytes[5] = RackAttack.ASSEMBLY_BUFFER;
    }
    bytes[6] = (byte) (fx & 0xFF); // SNDN
    bytes[7] = (byte) (bytes[4] + bytes[5] + bytes[6] & 0x7F); // CKSUM
    bytes[8] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX
    // a bit tricky but flushes SysEx-Buffers (in any sort of device)
    bytes[9] = (byte) SysexMessage.SYSTEM_EXCLUSIVE; // SysEx (SOX)
    bytes[10] = (byte) SysexMessage.SPECIAL_SYSTEM_EXCLUSIVE; // EOX


    try {
      sms.setMessage(bytes, bytes.length);
      enqueueEvent(sms);
    } catch (InvalidMidiDataException e) {
      log.error("error", e);
    } catch (MidiUnavailableException e) {
      log.error("error", e);

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