1 /* 2 * Copyright (c) 2010, 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 package com.sun.media.sound; 26 27 import javax.sound.midi.*; 28 29 30 /** 31 * Helper class which allows to convert {@code Transmitter} 32 * to {@code MidiDeviceTransmitter}. 33 * 34 * @author Alex Menkov 35 */ 36 public final class MidiDeviceTransmitterEnvelope implements MidiDeviceTransmitter { 37 38 private final MidiDevice device; 39 private final Transmitter transmitter; 40 41 /** 42 * Creates a new {@code MidiDeviceTransmitterEnvelope} object which 43 * envelops the specified {@code Transmitter} 44 * and is owned by the specified {@code MidiDevice}. 45 * 46 * @param device the owner {@code MidiDevice} 47 * @param transmitter the {@code Transmitter} to be enveloped 48 */ 49 public MidiDeviceTransmitterEnvelope(MidiDevice device, Transmitter transmitter) { 50 if (device == null || transmitter == null) { 51 throw new NullPointerException(); 52 } 53 this.device = device; 54 this.transmitter = transmitter; 55 } 56 57 // Transmitter implementation 58 public void setReceiver(Receiver receiver) { 59 transmitter.setReceiver(receiver); 60 } 61 62 public Receiver getReceiver() { 63 return transmitter.getReceiver(); 64 } 65 66 public void close() { 67 transmitter.close(); 68 } 69 70 71 // MidiDeviceReceiver implementation 72 public MidiDevice getMidiDevice() { 73 return device; 74 } 75 76 /** 77 * Obtains the transmitter enveloped 78 * by this {@code MidiDeviceTransmitterEnvelope} object. 79 * 80 * @return the enveloped transmitter 81 */ 82 public Transmitter getTransmitter() { 83 return transmitter; 84 } 85 }