rev 57600 : 8236980: toString() cleanup in JavaSound
Reviewed-by: XXX

   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;
  27 
  28 import java.util.StringJoiner;
  29 
  30 /**
  31  * A {@code CompoundControl}, such as a graphic equalizer, provides control over
  32  * two or more related properties, each of which is itself represented as a
  33  * {@code Control}.
  34  *
  35  * @author Kara Kytle
  36  * @since 1.3
  37  */
  38 public abstract class CompoundControl extends Control {
  39 
  40     /**
  41      * The set of member controls.
  42      */
  43     private final Control[] controls;
  44 
  45     /**
  46      * Constructs a new compound control object with the given parameters.
  47      *
  48      * @param  type the type of control represented this compound control object
  49      * @param  memberControls the set of member controls
  50      */
  51     protected CompoundControl(Type type, Control[] memberControls) {
  52         super(type);
  53         this.controls = memberControls;
  54     }
  55 
  56     /**
  57      * Returns the set of member controls that comprise the compound control.
  58      *
  59      * @return the set of member controls
  60      */
  61     public Control[] getMemberControls() {
  62         return controls.clone();
  63     }
  64 
  65     /**
  66      * Returns a string representation of the compound control.
  67      *
  68      * @return a string representation of the compound control
  69      */
  70     @Override
  71     public String toString() {
  72         StringJoiner controls = new StringJoiner(", ", "[", "]");
  73         for (Control control : getMemberControls()) {
  74             controls.add(control.getType().toString());





  75         }
  76         return String.format("%s containing %s controls", super.toString(),
  77                              controls);


  78     }
  79 
  80     /**
  81      * An instance of the {@code CompoundControl.Type} inner class identifies
  82      * one kind of compound control.
  83      *
  84      * @author Kara Kytle
  85      * @since 1.3
  86      */
  87     public static class Type extends Control.Type {
  88 
  89         /**
  90          * Constructs a new compound control type.
  91          *
  92          * @param  name the name of the new compound control type
  93          */
  94         protected Type(final String name) {
  95             super(name);
  96         }
  97     }
  98 }
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