| /* SysexMessage.java -- System Exclusive MIDI message. |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package javax.sound.midi; |
| |
| /** |
| * A system exclusive MIDI message. |
| * |
| * @author Anthony Green (green@redhat.com) |
| * @since 1.3 |
| * |
| */ |
| public class SysexMessage extends MidiMessage |
| { |
| public static final int SYSTEM_EXCLUSIVE = 0xF0; |
| |
| public static final int SPECIAL_SYSTEM_EXCLUSIVE = 0xF7; |
| |
| /** |
| * Create a default valid system exclusive message. |
| * |
| * The official specs don't specify what message is to be |
| * created. Our implementation creates an empty |
| * system exclusive message. |
| */ |
| public SysexMessage() |
| { |
| super(new byte[2]); |
| data[0] = (byte) SYSTEM_EXCLUSIVE; |
| data[1] = (byte) ShortMessage.END_OF_EXCLUSIVE; |
| } |
| |
| /** |
| * Create a SysexMessage object. |
| * @param data a complete system exclusive message |
| */ |
| protected SysexMessage(byte[] data) |
| { |
| super(data); |
| } |
| |
| /** |
| * Set the sysex message. The first data byte (status) must be |
| * 0xF0 or 0xF7. |
| * |
| * @param data the message data |
| * @param length the length of the message data |
| * @throws InvalidMidiDataException if the status byte is not 0xF0 or 0xF7 |
| */ |
| public void setMessage(byte[] data, int length) |
| throws InvalidMidiDataException |
| { |
| if (data[0] != SYSTEM_EXCLUSIVE |
| && data[0] != SPECIAL_SYSTEM_EXCLUSIVE) |
| throw new InvalidMidiDataException("Sysex message starts with 0x" |
| + Integer.toHexString(data[0]) |
| + " instead of 0xF0 or 0xF7"); |
| super.setMessage(data, length); |
| } |
| |
| /** |
| * Set the sysex message. status must be either 0xF0 or 0xF7. |
| * |
| * @param status the sysex statys byte (0xF0 or 0xF7) |
| * @param data the message data |
| * @param length the length of the message data |
| * @throws InvalidMidiDataException if status is not 0xF0 or 0xF7 |
| */ |
| public void setMessage(int status, byte[] data, int length) |
| throws InvalidMidiDataException |
| { |
| if (status != SYSTEM_EXCLUSIVE |
| && status != SPECIAL_SYSTEM_EXCLUSIVE) |
| throw new InvalidMidiDataException("Sysex message starts with 0x" |
| + Integer.toHexString(status) |
| + " instead of 0xF0 or 0xF7"); |
| this.data = new byte[length+1]; |
| this.data[0] = (byte) status; |
| System.arraycopy(data, 0, this.data, 1, length); |
| this.length = length+1; |
| } |
| |
| /** |
| * Get the data for this message, not including the status byte. |
| * @return the message data, not including the status byte |
| */ |
| public byte[] getData() |
| { |
| byte[] result = new byte[length - 1]; |
| System.arraycopy(data, 1, result, 0, length - 1); |
| return result; |
| } |
| |
| /* Create a deep-copy clone of this object. |
| * @see java.lang.Object#clone() |
| */ |
| public Object clone() |
| { |
| byte message[] = new byte[length]; |
| System.arraycopy(data, 0, message, 0, length); |
| return new SysexMessage(message); |
| } |
| } |
| |