1 /*

     2  * Copyright (c) 1999, 2013, 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 sun.audio;

    27 

    28 /**

    29  * Create a continuous audio stream. This wraps a stream

    30  * around an AudioData object, the stream is restarted

    31  * at the beginning everytime the end is reached, thus

    32  * creating continuous sound.<p>

    33  * For example:

    34  * <pre>

    35  *   AudioData data = AudioData.getAudioData(url);

    36  *   ContinuousAudioDataStream audiostream = new ContinuousAudioDataStream(data);

    37  *   AudioPlayer.player.start(audiostream);

    38  * </pre>

    39  *

    40  * @see AudioPlayer

    41  * @see AudioData

    42  * @author Arthur van Hoff

    43  */

    44 

    45 public final class ContinuousAudioDataStream extends AudioDataStream {

    46 

    47 

    48     /**

    49          * Create a continuous stream of audio.

    50          */

    51         public ContinuousAudioDataStream(AudioData data) {

    52 

    53             super(data);

    54         }

    55 

    56 

    57         public int read() {

    58 

    59             int i = super.read();

    60 

    61             if (i == -1) {

    62                 reset();

    63                 i = super.read();

    64             }

    65 

    66             return i;

    67         }

    68 

    69 

    70         public int read(byte ab[], int i1, int j) {

    71 

    72             int k;

    73 

    74             for (k = 0; k < j; ) {

    75                 int i2 = super.read(ab, i1 + k, j - k);

    76                 if (i2 >= 0) k += i2;

    77                 else reset();

    78             }

    79 

    80             return k;

    81         }

    82     }