content: /*
   * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code 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
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  package lib.com.sun.media.sound;
  
  import lib.sound.midi.MidiDevice;
  import lib.sound.midi.MidiDeviceTransmitter;
  import lib.sound.midi.Receiver;
  import lib.sound.midi.Transmitter;
  
  
  /**
   * Helper class which allows to convert {@code Transmitter}
   * to {@code MidiDeviceTransmitter}.
   *
   * @author Alex Menkov
   */
  public class MidiDeviceTransmitterEnvelope implements MidiDeviceTransmitter {
  
      private final MidiDevice device;
      private final Transmitter transmitter;
  
      /**
       * Creates a new {@code MidiDeviceTransmitterEnvelope} object which
       * envelops the specified {@code Transmitter}
       * and is owned by the specified {@code MidiDevice}.
       *
       * @param device      the owner {@code MidiDevice}
       * @param transmitter the {@code Transmitter} to be enveloped
       */
      public MidiDeviceTransmitterEnvelope(MidiDevice device, Transmitter transmitter) {
          if (device == null || transmitter == null) {
              throw new NullPointerException();
          }
          this.device = device;
          this.transmitter = transmitter;
      }
  
      public Receiver getReceiver() {
          return transmitter.getReceiver();
      }
  
      // Transmitter implementation
      public void setReceiver(Receiver receiver) {
          transmitter.setReceiver(receiver);
      }
  
      public void close() {
          transmitter.close();
      }
  
  
      // MidiDeviceReceiver implementation
      public MidiDevice getMidiDevice() {
          return device;
      }
  
      /**
       * Obtains the transmitter enveloped
       * by this {@code MidiDeviceTransmitterEnvelope} object.
       *
       * @return the enveloped transmitter
       */
      public Transmitter getTransmitter() {
          return transmitter;
      }
  }