/* * Copyright (c) 1999, 2004, 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.sampled;/** * Ports are simple lines for input or output of audio to or from audio devices. * Common examples of ports that act as source lines (mixer inputs) include the microphone, * line input, and CD-ROM drive. Ports that act as target lines (mixer outputs) include the * speaker, headphone, and line output. You can access port using a <code>{@link Port.Info}</code> * object. * * @author Kara Kytle * @since 1.3 */public interface Port extends Line { // INNER CLASSES /** * The <code>Port.Info</code> class extends <code>{@link Line.Info}</code> * with additional information specific to ports, including the port's name * and whether it is a source or a target for its mixer. * By definition, a port acts as either a source or a target to its mixer, * but not both. (Audio input ports are sources; audio output ports are targets.) * <p> * To learn what ports are available, you can retrieve port info objects through the * <code>{@link Mixer#getSourceLineInfo getSourceLineInfo}</code> and * <code>{@link Mixer#getTargetLineInfo getTargetLineInfo}</code> * methods of the <code>Mixer</code> interface. Instances of the * <code>Port.Info</code> class may also be constructed and used to obtain * lines matching the parameters specified in the <code>Port.Info</code> object. * * @author Kara Kytle * @since 1.3 */ public static class Info extends Line.Info { // AUDIO PORT TYPE DEFINES // SOURCE PORTS /** * A type of port that gets audio from a built-in microphone or a microphone jack. */ public static final Info MICROPHONE = new Info(Port.class,"MICROPHONE", true); /** * A type of port that gets audio from a line-level audio input jack. */ public static final Info LINE_IN = new Info(Port.class,"LINE_IN", true); /** * A type of port that gets audio from a CD-ROM drive. */ public static final Info COMPACT_DISC = new Info(Port.class,"COMPACT_DISC", true); // TARGET PORTS /** * A type of port that sends audio to a built-in speaker or a speaker jack. */ public static final Info SPEAKER = new Info(Port.class,"SPEAKER", false); /** * A type of port that sends audio to a headphone jack. */ public static final Info HEADPHONE = new Info(Port.class,"HEADPHONE", false); /** * A type of port that sends audio to a line-level audio output jack. */ public static final Info LINE_OUT = new Info(Port.class,"LINE_OUT", false); // FUTURE DIRECTIONS... // telephone // DAT // DVD // INSTANCE VARIABLES private String name; private boolean isSource; // CONSTRUCTOR /** * Constructs a port's info object from the information given. * This constructor is typically used by an implementation * of Java Sound to describe a supported line. * * @param lineClass the class of the port described by the info object. * @param name the string that names the port * @param isSource <code>true</code> if the port is a source port (such * as a microphone), <code>false</code> if the port is a target port * (such as a speaker). */ public Info(Class<?> lineClass, String name, boolean isSource) { super(lineClass); this.name = name; this.isSource = isSource; } // METHODS /** * Obtains the name of the port. * @return the string that names the port */ public String getName() { return name; } /** * Indicates whether the port is a source or a target for its mixer. * @return <code>true</code> if the port is a source port (such * as a microphone), <code>false</code> if the port is a target port * (such as a speaker). */ public boolean isSource() { return isSource; } /** * Indicates whether this info object specified matches this one. * To match, the match requirements of the superclass must be * met and the types must be equal. * @param info the info object for which the match is queried */ public boolean matches(Line.Info info) { if (! (super.matches(info)) ) { return false; } if (!(name.equals(((Info)info).getName())) ) { return false; } if (! (isSource == ((Info)info).isSource()) ) { return false; } return true; } /** * Finalizes the equals method */ public final boolean equals(Object obj) { return super.equals(obj); } /** * Finalizes the hashCode method */ public final int hashCode() { return super.hashCode(); } /** * Provides a <code>String</code> representation * of the port. * @return a string that describes the port */ public final String toString() { return (name + ((isSource == true) ? " source" : " target") + " port"); } } // class Info}
/*
* Copyright (c) 1999, 2004, 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.sampled;
/**
* Ports are simple lines for input or output of audio to or from audio devices.
* Common examples of ports that act as source lines (mixer inputs) include the microphone,
* line input, and CD-ROM drive. Ports that act as target lines (mixer outputs) include the
* speaker, headphone, and line output. You can access port using a <code>{@link Port.Info}</code>
* object.
*
* @author Kara Kytle
* @since 1.3
*/
public interface Port extends Line {
// INNER CLASSES
/**
* The <code>Port.Info</code> class extends <code>{@link Line.Info}</code>
* with additional information specific to ports, including the port's name
* and whether it is a source or a target for its mixer.
* By definition, a port acts as either a source or a target to its mixer,
* but not both. (Audio input ports are sources; audio output ports are targets.)
* <p>
* To learn what ports are available, you can retrieve port info objects through the
* <code>{@link Mixer#getSourceLineInfo getSourceLineInfo}</code> and
* <code>{@link Mixer#getTargetLineInfo getTargetLineInfo}</code>
* methods of the <code>Mixer</code> interface. Instances of the
* <code>Port.Info</code> class may also be constructed and used to obtain
* lines matching the parameters specified in the <code>Port.Info</code> object.
*
* @author Kara Kytle
* @since 1.3
*/
public static class Info extends Line.Info {
// AUDIO PORT TYPE DEFINES
// SOURCE PORTS
/**
* A type of port that gets audio from a built-in microphone or a microphone jack.
*/
public static final Info MICROPHONE = new Info(Port.class,"MICROPHONE", true);
/**
* A type of port that gets audio from a line-level audio input jack.
*/
public static final Info LINE_IN = new Info(Port.class,"LINE_IN", true);
/**
* A type of port that gets audio from a CD-ROM drive.
*/
public static final Info COMPACT_DISC = new Info(Port.class,"COMPACT_DISC", true);
// TARGET PORTS
/**
* A type of port that sends audio to a built-in speaker or a speaker jack.
*/
public static final Info SPEAKER = new Info(Port.class,"SPEAKER", false);
/**
* A type of port that sends audio to a headphone jack.
*/
public static final Info HEADPHONE = new Info(Port.class,"HEADPHONE", false);
/**
* A type of port that sends audio to a line-level audio output jack.
*/
public static final Info LINE_OUT = new Info(Port.class,"LINE_OUT", false);
// FUTURE DIRECTIONS...
// telephone
// DAT
// DVD
// INSTANCE VARIABLES
private String name;
private boolean isSource;
// CONSTRUCTOR
/**
* Constructs a port's info object from the information given.
* This constructor is typically used by an implementation
* of Java Sound to describe a supported line.
*
* @param lineClass the class of the port described by the info object.
* @param name the string that names the port
* @param isSource <code>true</code> if the port is a source port (such
* as a microphone), <code>false</code> if the port is a target port
* (such as a speaker).
*/
public Info(Class<?> lineClass, String name, boolean isSource) {
super(lineClass);
this.name = name;
this.isSource = isSource;
}
// METHODS
/**
* Obtains the name of the port.
* @return the string that names the port
*/
public String getName() {
return name;
}
/**
* Indicates whether the port is a source or a target for its mixer.
* @return <code>true</code> if the port is a source port (such
* as a microphone), <code>false</code> if the port is a target port
* (such as a speaker).
*/
public boolean isSource() {
return isSource;
}
/**
* Indicates whether this info object specified matches this one.
* To match, the match requirements of the superclass must be
* met and the types must be equal.
* @param info the info object for which the match is queried
*/
public boolean matches(Line.Info info) {
if (! (super.matches(info)) ) {
return false;
}
if (!(name.equals(((Info)info).getName())) ) {
return false;
}
if (! (isSource == ((Info)info).isSource()) ) {
return false;
}
return true;
}
/**
* Finalizes the equals method
*/
public final boolean equals(Object obj) {
return super.equals(obj);
}
/**
* Finalizes the hashCode method
*/
public final int hashCode() {
return super.hashCode();
}
/**
* Provides a <code>String</code> representation
* of the port.
* @return a string that describes the port
*/
public final String toString() {
return (name + ((isSource == true) ? " source" : " target") + " port");
}
} // class Info
}