79 lines
2.9 KiB
Java
79 lines
2.9 KiB
Java
/*
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* Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package javax.sound.midi.spi;
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import javax.sound.midi.MidiDevice;
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/**
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* A {@code MidiDeviceProvider} is a factory or provider for a particular type
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* of MIDI device. This mechanism allows the implementation to determine how
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* resources are managed in the creation and management of a device.
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*
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* @author Kara Kytle
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*/
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public abstract class MidiDeviceProvider {
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/**
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* Indicates whether the device provider supports the device represented by
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* the specified device info object.
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*
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* @param info an info object that describes the device for which support
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* is queried
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* @return {@code true} if the specified device is supported, otherwise
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* {@code false}
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*/
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public boolean isDeviceSupported(MidiDevice.Info info) {
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MidiDevice.Info infos[] = getDeviceInfo();
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for(int i=0; i<infos.length; i++) {
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if( info.equals( infos[i] ) ) {
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return true;
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}
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}
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return false;
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}
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/**
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* Obtains the set of info objects representing the device or devices
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* provided by this {@code MidiDeviceProvider}.
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*
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* @return set of device info objects
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*/
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public abstract MidiDevice.Info[] getDeviceInfo();
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/**
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* Obtains an instance of the device represented by the info object.
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*
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* @param info an info object that describes the desired device
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* @return device instance
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* @throws IllegalArgumentException if the info object specified does not
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* match the info object for a device supported by this
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* {@code MidiDeviceProvider}
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*/
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public abstract MidiDevice getDevice(MidiDevice.Info info);
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}
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