1 /*
2 * Licensed to The Apereo Foundation under one or more contributor license
3 * agreements. See the NOTICE file distributed with this work for additional
4 * information regarding copyright ownership.
5 *
6 *
7 * The Apereo Foundation licenses this file to you under the Educational
8 * Community License, Version 2.0 (the "License"); you may not use this file
9 * except in compliance with the License. You may obtain a copy of the License
10 * at:
11 *
12 * http://opensource.org/licenses/ecl2.txt
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
16 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
17 * License for the specific language governing permissions and limitations under
18 * the License.
19 *
20 */
21
22
23 package org.opencastproject.metadata.mpeg7;
24
25 import org.w3c.dom.Document;
26 import org.w3c.dom.Element;
27 import org.w3c.dom.Node;
28
29 /**
30 * TODO: Comment me!
31 */
32 public class MediaTimeImpl implements MediaTime {
33
34 /** The media time point */
35 protected MediaTimePoint mediaTimePoint = null;
36
37 /** The media duration */
38 protected MediaDuration mediaDuration = null;
39
40 /**
41 * Creates a media time object representing the given timepoint and duration.
42 *
43 * @param timePoint
44 * the time point
45 * @param duration
46 * the duration
47 */
48 public MediaTimeImpl(MediaTimePoint timePoint, MediaDuration duration) {
49 mediaTimePoint = timePoint;
50 mediaDuration = duration;
51 }
52
53 /**
54 * Creates a media time object from the given long values for timepoint and duration.
55 *
56 * @param time
57 * the time in milliseconds
58 * @param duration
59 * the duration in milliseconds
60 */
61 public MediaTimeImpl(long time, long duration) {
62 mediaTimePoint = new MediaTimePointImpl(time);
63 mediaDuration = new MediaDurationImpl(duration);
64 }
65
66 /**
67 * Creates a media time object from the given string representations for timepoint and duration.
68 *
69 * @param time
70 * the timepoint string representation
71 * @param duration
72 * the duration string representation
73 */
74 MediaTimeImpl(String time, String duration) {
75 mediaTimePoint = MediaTimePointImpl.parseTimePoint(time);
76 mediaDuration = MediaDurationImpl.parseDuration(duration);
77 }
78
79 /**
80 * @see org.opencastproject.metadata.mpeg7.MediaTime#getMediaDuration()
81 */
82 public MediaDuration getMediaDuration() {
83 return mediaDuration;
84 }
85
86 /**
87 * @see org.opencastproject.metadata.mpeg7.MediaTime#getMediaTimePoint()
88 */
89 public MediaTimePoint getMediaTimePoint() {
90 return mediaTimePoint;
91 }
92
93 /**
94 * Parses a media time and duration.
95 *
96 * @param time
97 * @param duration
98 * @return the
99 */
100 public static MediaTime parse(String time, String duration) {
101 MediaTime mediaTime = new MediaTimeImpl(time, duration);
102 return mediaTime;
103 }
104
105 /**
106 * @see org.opencastproject.mediapackage.XmlElement#toXml(org.w3c.dom.Document)
107 */
108 public Node toXml(Document document) {
109 Element node = document.createElement("MediaTime");
110 if (mediaTimePoint != null)
111 node.appendChild(mediaTimePoint.toXml(document));
112 if (mediaDuration != null)
113 node.appendChild(mediaDuration.toXml(document));
114 return node;
115 }
116
117 }