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src/java.desktop/share/classes/javax/sound/sampled/spi/MixerProvider.java

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   1 /*
   2  * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javax.sound.sampled.spi;
  27 
  28 import java.util.Arrays;
  29 
  30 import javax.sound.sampled.Mixer;
  31 
  32 /**
  33  * A provider or factory for a particular mixer type. This mechanism allows the
  34  * implementation to determine how resources are managed in creation /
  35  * management of a mixer.
  36  *
  37  * @author Kara Kytle
  38  * @since 1.3
  39  */
  40 public abstract class MixerProvider {





  41 
  42     /**
  43      * Indicates whether the mixer provider supports the mixer represented by
  44      * the specified mixer info object.
  45      * <p>
  46      * The full set of mixer info objects that represent the mixers supported by
  47      * this {@code MixerProvider} may be obtained through the
  48      * {@code getMixerInfo} method.
  49      *
  50      * @param  info an info object that describes the mixer for which support is
  51      *         queried
  52      * @return {@code true} if the specified mixer is supported, otherwise
  53      *         {@code false}
  54      * @throws NullPointerException if {@code info} is {@code null}
  55      * @see #getMixerInfo()
  56      */
  57     public boolean isMixerSupported(final Mixer.Info info) {
  58         return Arrays.stream(getMixerInfo()).anyMatch(info::equals);
  59     }
  60 


   1 /*
   2  * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javax.sound.sampled.spi;
  27 
  28 import java.util.Arrays;
  29 
  30 import javax.sound.sampled.Mixer;
  31 
  32 /**
  33  * A provider or factory for a particular mixer type. This mechanism allows the
  34  * implementation to determine how resources are managed in creation /
  35  * management of a mixer.
  36  *
  37  * @author Kara Kytle
  38  * @since 1.3
  39  */
  40 public abstract class MixerProvider {
  41 
  42     /**
  43      * Constructs a {@code MixerProvider}.
  44      */
  45     protected MixerProvider() {}
  46 
  47     /**
  48      * Indicates whether the mixer provider supports the mixer represented by
  49      * the specified mixer info object.
  50      * <p>
  51      * The full set of mixer info objects that represent the mixers supported by
  52      * this {@code MixerProvider} may be obtained through the
  53      * {@code getMixerInfo} method.
  54      *
  55      * @param  info an info object that describes the mixer for which support is
  56      *         queried
  57      * @return {@code true} if the specified mixer is supported, otherwise
  58      *         {@code false}
  59      * @throws NullPointerException if {@code info} is {@code null}
  60      * @see #getMixerInfo()
  61      */
  62     public boolean isMixerSupported(final Mixer.Info info) {
  63         return Arrays.stream(getMixerInfo()).anyMatch(info::equals);
  64     }
  65 


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