1 /*
2 * Copyright (c) 1999, 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
71 }
72
73 MidiDevice createDevice(AbstractMidiDeviceProvider.Info info) {
74 if (enabled && (info instanceof MidiInDeviceInfo)) {
75 return new MidiInDevice(info);
76 }
77 return null;
78 }
79
80 int getNumDevices() {
81 if (!enabled) {
82 if (Printer.debug)Printer.debug("MidiInDevice not enabled, returning 0 devices");
83 return 0;
84 }
85 int numDevices = nGetNumDevices();
86 if (Printer.debug)Printer.debug("MidiInDeviceProvider.getNumDevices(): devices: " + numDevices);
87 return numDevices;
88 }
89
90 MidiDevice[] getDeviceCache() { return devices; }
91 void setDeviceCache(MidiDevice[] devices) { this.devices = devices; }
92 Info[] getInfoCache() { return infos; }
93 void setInfoCache(Info[] infos) { this.infos = infos; }
94
95
96 // INNER CLASSES
97
98 /**
99 * Info class for MidiInDevices. Adds the
100 * provider's Class to keep the provider class from being
101 * unloaded. Otherwise, at least on JDK1.1.7 and 1.1.8,
102 * the provider class can be unloaded. Then, then the provider
103 * is next invoked, the static block is executed again and a new
104 * instance of the device object is created. Even though the
105 * previous instance may still exist and be open / in use / etc.,
106 * the new instance will not reflect that state...
107 */
108 static final class MidiInDeviceInfo extends AbstractMidiDeviceProvider.Info {
109 private final Class providerClass;
110
111 private MidiInDeviceInfo(int index, Class providerClass) {
112 super(nGetName(index), nGetVendor(index), nGetDescription(index), nGetVersion(index), index);
113 this.providerClass = providerClass;
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1 /*
2 * Copyright (c) 1999, 2014, 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
71 }
72
73 MidiDevice createDevice(AbstractMidiDeviceProvider.Info info) {
74 if (enabled && (info instanceof MidiInDeviceInfo)) {
75 return new MidiInDevice(info);
76 }
77 return null;
78 }
79
80 int getNumDevices() {
81 if (!enabled) {
82 if (Printer.debug)Printer.debug("MidiInDevice not enabled, returning 0 devices");
83 return 0;
84 }
85 int numDevices = nGetNumDevices();
86 if (Printer.debug)Printer.debug("MidiInDeviceProvider.getNumDevices(): devices: " + numDevices);
87 return numDevices;
88 }
89
90 MidiDevice[] getDeviceCache() { return devices; }
91 void setDeviceCache(MidiDevice[] devices) { MidiInDeviceProvider.devices = devices; }
92 Info[] getInfoCache() { return infos; }
93 void setInfoCache(Info[] infos) { MidiInDeviceProvider.infos = infos; }
94
95
96 // INNER CLASSES
97
98 /**
99 * Info class for MidiInDevices. Adds the
100 * provider's Class to keep the provider class from being
101 * unloaded. Otherwise, at least on JDK1.1.7 and 1.1.8,
102 * the provider class can be unloaded. Then, then the provider
103 * is next invoked, the static block is executed again and a new
104 * instance of the device object is created. Even though the
105 * previous instance may still exist and be open / in use / etc.,
106 * the new instance will not reflect that state...
107 */
108 static final class MidiInDeviceInfo extends AbstractMidiDeviceProvider.Info {
109 private final Class providerClass;
110
111 private MidiInDeviceInfo(int index, Class providerClass) {
112 super(nGetName(index), nGetVendor(index), nGetDescription(index), nGetVersion(index), index);
113 this.providerClass = providerClass;
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