| /* |
| * Copyright (c) 1999, 2003, 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 javax.sound.midi.spi; |
| |
| import javax.sound.midi.MidiDevice; |
| import javax.sound.midi.MidiUnavailableException; |
| |
| /** |
| * A <code>MidiDeviceProvider</code> is a factory or provider for a particular |
| * type of MIDI device. |
| * This mechanism allows the implementation to determine |
| * how resources are managed in the creation and management of |
| * a device. |
| * |
| * @author Kara Kytle |
| */ |
| public abstract class MidiDeviceProvider { |
| |
| |
| /** |
| * Indicates whether the device provider supports the device represented by |
| * the specified device info object. |
| * @param info an info object that describes the device for which support is queried |
| * @return <code>true</code> if the specified device is supported, |
| * otherwise <code>false</code> |
| */ |
| public boolean isDeviceSupported(MidiDevice.Info info) { |
| |
| MidiDevice.Info infos[] = getDeviceInfo(); |
| |
| for(int i=0; i<infos.length; i++) { |
| if( info.equals( infos[i] ) ) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| /** |
| * Obtains the set of info objects representing the device |
| * or devices provided by this <code>MidiDeviceProvider</code>. |
| * @return set of device info objects |
| */ |
| public abstract MidiDevice.Info[] getDeviceInfo(); |
| |
| |
| /** |
| * Obtains an instance of the device represented by the info object. |
| * @param info an info object that describes the desired device |
| * @return device instance |
| * @throws IllegalArgumentException if the info object specified does not |
| * match the info object for a device supported by this <code>MidiDeviceProvider</code>. |
| */ |
| public abstract MidiDevice getDevice(MidiDevice.Info info); |
| } |