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/*
* 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
* @key sound
* @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);
}
}
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