org.jaudiolibs.audioservers.ext.Device Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2020 Neil C Smith.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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package org.jaudiolibs.audioservers.ext;
import java.util.Collections;
/**
* Represents a Device (eg. sound card) made available by the underlying audio
* library.
*
* Devices can also be extended by arbitrary extension Objects.
*
*/
public abstract class Device {
private final String name;
private final int maxInputChannels;
private final int maxOutputChannels;
public Device(
String name,
int maxInputChannels,
int maxOutputChannels) {
if (name == null) {
throw new NullPointerException("Name parameter cannot be null");
}
this.name = name;
if (maxInputChannels < 0 || maxOutputChannels < 0) {
throw new IllegalArgumentException("Channel count cannot be less than zero");
}
this.maxInputChannels = maxInputChannels;
this.maxOutputChannels = maxOutputChannels;
}
/**
* The name of the device. Never null.
*
* @return name
*/
public final String getName() {
return name;
}
/**
* The maximum number of input channels supported by this device.
*
* @return max channels
*/
public final int getMaxInputChannels() {
return maxInputChannels;
}
/**
* The maximum number of output channels supported by this device.
*
* @return max channels
*/
public final int getMaxOutputChannels() {
return maxOutputChannels;
}
/**
* Find and return the first extension Object of the given type.
*
* The default implementation always returns null. Subclasses of this class
* should override this method and the findAll() method as necessary.
*
* @param
* @param type
* @return Object or null
*/
public T find(Class type) {
return null;
}
/**
* Find and return all extension Objects of the given type.
*
* The default implementation always returns an empty Iterable. Subclasses
* of this class should override this method and the find() method as
* necessary.
*
* @param
* @param type
* @return
*/
public Iterable findAll(Class type) {
return Collections.emptyList();
}
@Override
public String toString() {
return name;
}
}