Coverage Report

Coverage Report - org.jaudiotagger.tag.id3.ID3v1Iterator

Classes in this File

Line Coverage

Branch Coverage

Complexity

ID3v1Iterator

0/35

0/72

7.333

 /**
  *  @author : Paul Taylor
  *  @author : Eric Farng
  *
  *  Version @version:$Id: ID3v1Iterator.java,v 1.6 2008/01/01 15:14:22 paultaylor Exp $
  *
  *  MusicTag Copyright (C)2003,2004
  *
  *  This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
  *  General Public  License as published by the Free Software Foundation; either version 2.1 of the License,
  *  or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
  *  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  *  See the GNU Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public License along with this library; if not,
  *  you can get a copy from http://www.opensource.org/licenses/lgpl-license.php or write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  *
  * Description:
  *
  */
 package org.jaudiotagger.tag.id3;
 
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 
 
 public class ID3v1Iterator implements Iterator
 {
     /**
      *
      */
     private static final int TITLE = 1;
 
     /**
      *
      */
     private static final int ARTIST = 2;
 
     /**
      *
      */
     private static final int ALBUM = 3;
 
     /**
      *
      */
     private static final int COMMENT = 4;
 
     /**
      *
      */
     private static final int YEAR = 5;
 
     /**
      *
      */
     private static final int GENRE = 6;
 
     /**
      *
      */
     private static final int TRACK = 7;
 
     /**
      *
      */
     private ID3v1Tag id3v1tag;
 
     /**
      *
      */
     private int lastIndex = 0;
 
     /**
      * Creates a new ID3v1Iterator datatype.
      *
      * @param id3v1tag
      */
     public ID3v1Iterator(ID3v1Tag id3v1tag)
     {
         this.id3v1tag = id3v1tag;
     }
 
     /**
      * @return
      */
     public boolean hasNext()
     {
         return hasNext(lastIndex);
     }
 
     /**
      * @return
      */
     public Object next()
     {
         return next(lastIndex);
     }
 
     /**
      *
      */
     public void remove()
     {
         switch (lastIndex)
         {
             case TITLE:
                 id3v1tag.title = "";
 
             case ARTIST:
                 id3v1tag.artist = "";
 
             case ALBUM:
                 id3v1tag.album = "";
 
             case COMMENT:
                 id3v1tag.comment = "";
 
             case YEAR:
                 id3v1tag.year = "";
 
             case GENRE:
                 id3v1tag.genre = (byte) -1;
 
             case TRACK:
 
                 if (id3v1tag instanceof ID3v11Tag)
                 {
                     ((ID3v11Tag) id3v1tag).track = (byte) -1;
                 }
         }
     }
 
     /**
      * @param index
      * @return
      */
     private boolean hasNext(int index)
     {
         switch (index)
         {
             case TITLE:
                 return (id3v1tag.title.length() > 0) || hasNext(index + 1);
 
             case ARTIST:
                 return (id3v1tag.artist.length() > 0) || hasNext(index + 1);
 
             case ALBUM:
                 return (id3v1tag.album.length() > 0) || hasNext(index + 1);
 
             case COMMENT:
                 return (id3v1tag.comment.length() > 0) || hasNext(index + 1);
 
             case YEAR:
                 return (id3v1tag.year.length() > 0) || hasNext(index + 1);
 
             case GENRE:
                 return (id3v1tag.genre >= (byte) 0) || hasNext(index + 1);
 
             case TRACK:
 
                 if (id3v1tag instanceof ID3v11Tag)
                 {
                     return (((ID3v11Tag) id3v1tag).track >= (byte) 0) || hasNext(index + 1);
                 }
 
             default:
                 return false;
         }
     }
 
     /**
      * @param index
      * @return
      * @throws NoSuchElementException
      */
     private Object next(int index)
     {
         switch (lastIndex)
         {
             case 0:
                 return (id3v1tag.title.length() > 0) ? id3v1tag.title : next(index + 1);
 
             case TITLE:
                 return (id3v1tag.artist.length() > 0) ? id3v1tag.artist : next(index + 1);
 
             case ARTIST:
                 return (id3v1tag.album.length() > 0) ? id3v1tag.album : next(index + 1);
 
             case ALBUM:
                 return (id3v1tag.comment.length() > 0) ? id3v1tag.comment : next(index + 1);
 
             case COMMENT:
                 return (id3v1tag.year.length() > 0) ? id3v1tag.year : next(index + 1);
 
             case YEAR:
                 return (id3v1tag.genre >= (byte) 0) ? id3v1tag.genre : next(index + 1);
 
             case GENRE:
                 return (id3v1tag instanceof ID3v11Tag && (((ID3v11Tag) id3v1tag).track >= (byte) 0)) ? ((ID3v11Tag) id3v1tag).track : null;
 
             default:
                 throw new NoSuchElementException("Iteration has no more elements.");
         }
     }
 }

1		/**
2		* @author : Paul Taylor
3		* @author : Eric Farng
4		*
5		* Version @version:$Id: ID3v1Iterator.java,v 1.6 2008/01/01 15:14:22 paultaylor Exp $
6		*
7		* MusicTag Copyright (C)2003,2004
8		*
9		* This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
10		* General Public License as published by the Free Software Foundation; either version 2.1 of the License,
11		* or (at your option) any later version.
12		*
13		* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
14		* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15		* See the GNU Lesser General Public License for more details.
16		*
17		* You should have received a copy of the GNU Lesser General Public License along with this library; if not,
18		* you can get a copy from http://www.opensource.org/licenses/lgpl-license.php or write to the Free Software
19		* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20		*
21		* Description:
22		*
23		*/
24		package org.jaudiotagger.tag.id3;
25
26		import java.util.Iterator;
27		import java.util.NoSuchElementException;
28
29
30		public class ID3v1Iterator implements Iterator
31		{
32		/**
33		*
34		*/
35		private static final int TITLE = 1;
36
37		/**
38		*
39		*/
40		private static final int ARTIST = 2;
41
42		/**
43		*
44		*/
45		private static final int ALBUM = 3;
46
47		/**
48		*
49		*/
50		private static final int COMMENT = 4;
51
52		/**
53		*
54		*/
55		private static final int YEAR = 5;
56
57		/**
58		*
59		*/
60		private static final int GENRE = 6;
61
62		/**
63		*
64		*/
65		private static final int TRACK = 7;
66
67		/**
68		*
69		*/
70		private ID3v1Tag id3v1tag;
71
72		/**
73		*
74		*/
75	0	private int lastIndex = 0;
76
77		/**
78		* Creates a new ID3v1Iterator datatype.
79		*
80		* @param id3v1tag
81		*/
82		public ID3v1Iterator(ID3v1Tag id3v1tag)
83	0	{
84	0	this.id3v1tag = id3v1tag;
85	0	}
86
87		/**
88		* @return
89		*/
90		public boolean hasNext()
91		{
92	0	return hasNext(lastIndex);
93		}
94
95		/**
96		* @return
97		*/
98		public Object next()
99		{
100	0	return next(lastIndex);
101		}
102
103		/**
104		*
105		*/
106		public void remove()
107		{
108	0	switch (lastIndex)
109		{
110		case TITLE:
111	0	id3v1tag.title = "";
112
113		case ARTIST:
114	0	id3v1tag.artist = "";
115
116		case ALBUM:
117	0	id3v1tag.album = "";
118
119		case COMMENT:
120	0	id3v1tag.comment = "";
121
122		case YEAR:
123	0	id3v1tag.year = "";
124
125		case GENRE:
126	0	id3v1tag.genre = (byte) -1;
127
128		case TRACK:
129
130	0	if (id3v1tag instanceof ID3v11Tag)
131		{
132	0	((ID3v11Tag) id3v1tag).track = (byte) -1;
133		}
134		}
135	0	}
136
137		/**
138		* @param index
139		* @return
140		*/
141		private boolean hasNext(int index)
142		{
143	0	switch (index)
144		{
145		case TITLE:
146	0	return (id3v1tag.title.length() > 0) \|\| hasNext(index + 1);
147
148		case ARTIST:
149	0	return (id3v1tag.artist.length() > 0) \|\| hasNext(index + 1);
150
151		case ALBUM:
152	0	return (id3v1tag.album.length() > 0) \|\| hasNext(index + 1);
153
154		case COMMENT:
155	0	return (id3v1tag.comment.length() > 0) \|\| hasNext(index + 1);
156
157		case YEAR:
158	0	return (id3v1tag.year.length() > 0) \|\| hasNext(index + 1);
159
160		case GENRE:
161	0	return (id3v1tag.genre >= (byte) 0) \|\| hasNext(index + 1);
162
163		case TRACK:
164
165	0	if (id3v1tag instanceof ID3v11Tag)
166		{
167	0	return (((ID3v11Tag) id3v1tag).track >= (byte) 0) \|\| hasNext(index + 1);
168		}
169
170		default:
171	0	return false;
172		}
173		}
174
175		/**
176		* @param index
177		* @return
178		* @throws NoSuchElementException
179		*/
180		private Object next(int index)
181		{
182	0	switch (lastIndex)
183		{
184		case 0:
185	0	return (id3v1tag.title.length() > 0) ? id3v1tag.title : next(index + 1);
186
187		case TITLE:
188	0	return (id3v1tag.artist.length() > 0) ? id3v1tag.artist : next(index + 1);
189
190		case ARTIST:
191	0	return (id3v1tag.album.length() > 0) ? id3v1tag.album : next(index + 1);
192
193		case ALBUM:
194	0	return (id3v1tag.comment.length() > 0) ? id3v1tag.comment : next(index + 1);
195
196		case COMMENT:
197	0	return (id3v1tag.year.length() > 0) ? id3v1tag.year : next(index + 1);
198
199		case YEAR:
200	0	return (id3v1tag.genre >= (byte) 0) ? id3v1tag.genre : next(index + 1);
201
202		case GENRE:
203	0	return (id3v1tag instanceof ID3v11Tag && (((ID3v11Tag) id3v1tag).track >= (byte) 0)) ? ((ID3v11Tag) id3v1tag).track : null;
204
205		default:
206	0	throw new NoSuchElementException("Iteration has no more elements.");
207		}
208		}
209		}