| /* |
| * Copyright (c) 2011, 2013, 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. |
| * |
| * 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. |
| */ |
| |
| /** |
| * @test |
| * @bug 6660470 |
| * @summary Tests that sequencer correctly opens/closes (implicitly) devices |
| * @author Alex Menkov |
| */ |
| |
| import java.util.List; |
| import javax.sound.midi.MidiDevice; |
| import javax.sound.midi.MidiDeviceReceiver; |
| import javax.sound.midi.MidiSystem; |
| import javax.sound.midi.MidiUnavailableException; |
| import javax.sound.midi.Receiver; |
| import javax.sound.midi.Sequencer; |
| import javax.sound.midi.Transmitter; |
| |
| public class SequencerImplicitSynthOpen { |
| |
| static int TEST_COUNT = 5; |
| |
| public static void main(String[] args) { |
| try { |
| log("getting sequencer..."); |
| Sequencer sequencer = MidiSystem.getSequencer(); |
| log(" - got " + getDeviceStr(sequencer)); |
| |
| // obtain connected device (usually synthesizer) |
| MidiDevice synth = getConnectedDevice(sequencer); |
| if (synth == null) { |
| log("could not get connected device, returning"); |
| return; |
| } |
| |
| log("connected device: " + getDeviceStr(synth)); |
| |
| int success = 0; |
| for (int i=0; i<TEST_COUNT; i++) { |
| if (test(sequencer)) { |
| success++; |
| } |
| } |
| |
| if (success != TEST_COUNT) { |
| throw new RuntimeException("test FAILS"); |
| } |
| } catch (MidiUnavailableException ex) { |
| // this is not a failure |
| log("Could not get Sequencer"); |
| } |
| log("test PASSED."); |
| } |
| |
| static boolean test(Sequencer sequencer) throws MidiUnavailableException { |
| log(""); |
| log("opening sequencer..."); |
| sequencer.open(); // opens connected synthesizer implicitly |
| MidiDevice synth = getConnectedDevice(sequencer); |
| log(" connected device: " + getDeviceStr(synth)); |
| |
| log("closing sequencer..."); |
| sequencer.close(); // closes the synth implicitly |
| log(" synth is " + getDeviceStr(synth)); |
| MidiDevice synth2 = getConnectedDevice(sequencer); |
| log(" currently connected device: " + getDeviceStr(synth2)); |
| |
| if (synth != null && synth.isOpen()) { |
| log("FAIL."); |
| return false; |
| } |
| log("OK."); |
| return true; |
| } |
| |
| static MidiDevice getConnectedDevice(Sequencer sequencer) { |
| List<Transmitter> trans = sequencer.getTransmitters(); |
| log(" sequencer has " + trans.size() + " opened transmitters:"); |
| for (Transmitter tr: trans) { |
| Receiver r = tr.getReceiver(); |
| log(" " + getClassStr(tr) + " connected to " + getClassStr(r)); |
| if (r instanceof MidiDeviceReceiver) { |
| MidiDeviceReceiver recv = (MidiDeviceReceiver)r; |
| MidiDevice dev = recv.getMidiDevice(); |
| log(" - receiver of " + getClassStr(dev)); |
| return dev; |
| } else { |
| log(" - does NOT implement MidiDeviceReceiver"); |
| } |
| } |
| return null; |
| } |
| |
| static String getClassStr(Object o) { |
| if (o == null) { |
| return "<null>"; |
| } |
| return o.getClass().getName(); |
| } |
| |
| static String getDeviceStr(MidiDevice dev) { |
| if (dev == null) { |
| return "NULL"; |
| } |
| return getClassStr(dev) + ", " + (dev.isOpen() ? "OPENED" : "CLOSED"); |
| } |
| |
| static void log(String s) { |
| System.out.println(s); |
| } |
| |
| } |