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Java > Open Source Codes > org > displaytag > sample > RandomSampleUtil


1 /**
2  * Licensed under the Artistic License; you may not use this file
3  * except in compliance with the License.
4  * You may obtain a copy of the License at
5  *
6  * http://displaytag.sourceforge.net/license.html
7  *
8  * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
9  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
10  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
11  */
12 package org.displaytag.sample;
13
14 import java.util.Calendar JavaDoc;
15 import java.util.Date JavaDoc;
16 import java.util.Random JavaDoc;
17
18
19 /**
20  * Utility class used to get random word and sentences used in examples.
21  * @author Fabrizio Giustina
22  * @version $Revision$ ($Author$)
23  */
24 public final class RandomSampleUtil
25 {
26
27     /**
28      * list of words.
29      */
30     private static String JavaDoc[] words = new String JavaDoc[]{"Lorem", //$NON-NLS-1$
31 "ipsum", //$NON-NLS-1$
32 "dolor", //$NON-NLS-1$
33 "sit", //$NON-NLS-1$
34 "amet", //$NON-NLS-1$
35 "consetetur", //$NON-NLS-1$
36 "sadipscing", //$NON-NLS-1$
37 "elitr", //$NON-NLS-1$
38 "sed", //$NON-NLS-1$
39 "diam", //$NON-NLS-1$
40 "nonumy", //$NON-NLS-1$
41 "eirmod", //$NON-NLS-1$
42 "tempor", //$NON-NLS-1$
43 "invidunt", //$NON-NLS-1$
44 "ut", //$NON-NLS-1$
45 "labore", //$NON-NLS-1$
46 "et", //$NON-NLS-1$
47 "dolore", //$NON-NLS-1$
48 "magna", //$NON-NLS-1$
49 "aliquyam", //$NON-NLS-1$
50 "erat", //$NON-NLS-1$
51 "sed", //$NON-NLS-1$
52 "diam", //$NON-NLS-1$
53 "voluptua", //$NON-NLS-1$
54 "At", //$NON-NLS-1$
55 "vero", //$NON-NLS-1$
56 "eos", //$NON-NLS-1$
57 "et", //$NON-NLS-1$
58 "accusam", //$NON-NLS-1$
59 "et", //$NON-NLS-1$
60 "justo", //$NON-NLS-1$
61 "duo", //$NON-NLS-1$
62 "dolores", //$NON-NLS-1$
63 "et", //$NON-NLS-1$
64 "ea", //$NON-NLS-1$
65 "rebum", //$NON-NLS-1$
66 "Stet", //$NON-NLS-1$
67 "clita", //$NON-NLS-1$
68 "kasd", //$NON-NLS-1$
69 "gubergren", //$NON-NLS-1$
70 "no", //$NON-NLS-1$
71 "sea", //$NON-NLS-1$
72 "takimata", //$NON-NLS-1$
73 "sanctus", //$NON-NLS-1$
74 "est"}; //$NON-NLS-1$
75
76     /**
77      * random number producer.
78      */
79     private static Random JavaDoc random = new Random JavaDoc();
80
81     /**
82      * utility class, don't instantiate.
83      */
84     private RandomSampleUtil()
85     {
86         super();
87     }
88
89     /**
90      * returns a random word.
91      * @return random word
92      */
93     public static String JavaDoc getRandomWord()
94     {
95         return words[random.nextInt(words.length)];
96     }
97
98     /**
99      * returns a random sentence.
100      * @param wordNumber number of word in the sentence
101      * @return random sentence made of <code>wordNumber</code> words
102      */
103     public static String JavaDoc getRandomSentence(int wordNumber)
104     {
105         StringBuffer JavaDoc buffer = new StringBuffer JavaDoc(wordNumber * 12);
106
107         int j = 0;
108         while (j < wordNumber)
109         {
110             buffer.append(getRandomWord());
111             buffer.append(" "); //$NON-NLS-1$
112 j++;
113         }
114         return buffer.toString();
115     }
116
117     /**
118      * returns a random email.
119      * @return random email
120      */
121     public static String JavaDoc getRandomEmail()
122     {
123         return getRandomWord() + "@" + getRandomWord() + ".com"; //$NON-NLS-1$ //$NON-NLS-2$
124 }
125
126     /**
127      * returns a random date.
128      * @return random date
129      */
130     public static Date JavaDoc getRandomDate()
131     {
132
133         Calendar JavaDoc calendar = Calendar.getInstance();
134         calendar.add(Calendar.DATE, 365 - random.nextInt(730));
135         return calendar.getTime();
136     }
137 }
138
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