1. /*

  2.  * @(#)MixerProvider.java	1.18 03/12/19

  3.  *

  4.  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package javax.sound.sampled.spi;		  	 

  9. 

  10. import javax.sound.sampled.Mixer;

  11. 

  12. /**

  13.  * A provider or factory for a particular mixer type.

  14.  * This mechanism allows the implementation to determine

  15.  * how resources are managed in creation / management of

  16.  * a mixer.

  17.  *

  18.  * @version 1.18 03/12/19

  19.  * @author Kara Kytle

  20.  * @since 1.3

  21.  */

  22. public abstract class MixerProvider {

  23. 

  24. 

  25.     /**

  26.      * Indicates whether the mixer provider supports the mixer represented by

  27.      * the specified mixer info object.

  28.      * @param info an info object that describes the mixer for which support is queried

  29.      * @return <code>true</code> if the specified mixer is supported, 

  30.      * otherwise <code>false</code>

  31.      */

  32.     public boolean isMixerSupported(Mixer.Info info) {

  33. 

  34. 	Mixer.Info infos[] = getMixerInfo();

  35. 		

  36. 	for(int i=0; i<infos.length; i++){

  37. 	    if( info.equals( infos[i] ) ) {

  38. 		return true;

  39. 	    }

  40. 	}

  41. 	return false;

  42.     }

  43. 

  44. 

  45.     /**

  46.      * Obtains the set of info objects representing the mixer

  47.      * or mixers provided by this MixerProvider.

  48.      * @return set of mixer info objects

  49.      */

  50.     public abstract Mixer.Info[] getMixerInfo();

  51. 

  52. 

  53.     /**

  54.      * Obtains an instance of the mixer represented by the info object.

  55.      * @param info an info object that describes the desired mixer

  56.      * @return mixer instance

  57.      * @throws IllegalArgumentException if the info object specified does not

  58.      * match the info object for a mixer supported by this MixerProvider.

  59.      */

  60.     public abstract Mixer getMixer(Mixer.Info info);

  61. }