1 /* 2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.media.sound; 27 28 import javax.sound.midi.InvalidMidiDataException; 29 import javax.sound.midi.SysexMessage; 30 31 /** 32 * optimized FastSysexMessage that doesn't copy the array upon instantiation. 33 * 34 * @author Florian Bomers 35 */ 36 final class FastSysexMessage extends SysexMessage { 37 38 FastSysexMessage(byte[] data) throws InvalidMidiDataException { 39 super(data); 40 if (data.length==0 || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7))) { 41 super.setMessage(data, data.length); // will throw Exception 42 } 43 } 44 45 /** 46 * The returned array may be larger than this message is. 47 * Use getLength() to get the real length of the message. 48 */ 49 byte[] getReadOnlyMessage() { 50 return data; 51 } 52 53 // overwrite this method so that the original data array, 54 // which is shared among all transmitters, cannot be modified 55 @Override 56 public void setMessage(byte[] data, int length) throws InvalidMidiDataException { 57 if ((data.length == 0) || (((data[0] & 0xFF) != 0xF0) && ((data[0] & 0xFF) != 0xF7))) { 58 super.setMessage(data, data.length); // will throw Exception 59 } 60 this.length = length; 61 this.data = new byte[this.length]; 62 System.arraycopy(data, 0, this.data, 0, length); 63 } 64 65 } // class FastSysexMessage