1/*
2 * libjingle
3 * Copyright 2013, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28package org.webrtc;
29
30import java.util.LinkedList;
31import java.util.List;
32
33/**
34 * Description of media constraints for {@code MediaStream} and
35 * {@code PeerConnection}.
36 */
37public class MediaConstraints {
38  /** Simple String key/value pair. */
39  public static class KeyValuePair {
40    private final String key;
41    private final String value;
42
43    public KeyValuePair(String key, String value) {
44      this.key = key;
45      this.value = value;
46    }
47
48    public String getKey() {
49      return key;
50    }
51
52    public String getValue() {
53      return value;
54    }
55
56    public String toString() {
57      return key + ": " + value;
58    }
59  }
60
61
62  public final List<KeyValuePair> mandatory;
63  public final List<KeyValuePair> optional;
64
65  public MediaConstraints() {
66    mandatory = new LinkedList<KeyValuePair>();
67    optional = new LinkedList<KeyValuePair>();
68  }
69
70  private static String stringifyKeyValuePairList(List<KeyValuePair> list) {
71    StringBuilder builder = new StringBuilder("[");
72    for (KeyValuePair pair : list) {
73      if (builder.length() > 1) {
74        builder.append(", ");
75      }
76      builder.append(pair.toString());
77    }
78    return builder.append("]").toString();
79  }
80
81  public String toString() {
82    return "mandatory: " + stringifyKeyValuePairList(mandatory) +
83        ", optional: " + stringifyKeyValuePairList(optional);
84  }
85}
86