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 Receiver} 32 * to {@code MidiDeviceReceiver}. 33 * 34 * @author Alex Menkov 35 */ 36 public final class MidiDeviceReceiverEnvelope implements MidiDeviceReceiver { 37 38 private final MidiDevice device; 39 private final Receiver receiver; 40 41 /** 42 * Creates a new {@code MidiDeviceReceiverEnvelope} object which 43 * envelops the specified {@code Receiver} 44 * and is owned by the specified {@code MidiDevice}. 45 * 46 * @param device the owner {@code MidiDevice} 47 * @param receiver the {@code Receiver} to be enveloped 48 */ 49 public MidiDeviceReceiverEnvelope(MidiDevice device, Receiver receiver) { 50 if (device == null || receiver == null) { 51 throw new NullPointerException(); 52 } 53 this.device = device; 54 this.receiver = receiver; 55 } 56 57 // Receiver implementation 58 public void close() { 59 receiver.close(); 60 } 61 62 public void send(MidiMessage message, long timeStamp) { 63 receiver.send(message, timeStamp); 64 } 65 66 // MidiDeviceReceiver implementation 67 public MidiDevice getMidiDevice() { 68 return device; 69 } 70 71 /** 72 * Obtains the receiver enveloped 73 * by this {@code MidiDeviceReceiverEnvelope} object. 74 * 75 * @return the enveloped receiver 76 */ 77 public Receiver getReceiver() { 78 return receiver; 79 } 80 }