/* * 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; /** {@collect.stats} * 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 { /** {@collect.stats} * 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; } /** {@collect.stats} * 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(); /** {@collect.stats} * 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); }