DateBean


1   /*
2    * DateBean.java
3    *
4    * Created on 30. August 2003, 21:35
5    */
6   
7   package org.contineo.core;
8   
9   import java.util.Date  ;
10  import java.text.SimpleDateFormat  ;
11  import java.text.ParsePosition  ;
12  import org.contineo.core.LocaleBean;
13  
14  /**
15   * This class converts a date into some formats.
16   * @author Michael Scholz
17   * @author Sebastian Stein
18   * @version 1.1
19   */
20  public class DateBean extends Date   {
21      
22      private static final long serialVersionUID = 1L;
23  
24      /**
25       * This method returns the current date in the format yyyymmdd.
26       * @return current date in format yyyyMMdd
27       */
28      public static String   toCompactString() {
29          SimpleDateFormat   targetFormat = new SimpleDateFormat  ();
30          targetFormat.applyPattern("yyyyMMdd");
31          String   result = targetFormat.format(new DateBean());
32  
33          return result;
34      }
35      
36      /**
37       * This method formats a string with format dd.mm.yyyy into format yyyymmdd.
38       * @param date string containing the date to be converted
39       * @param lang from which language it should be converted
40       * @return a string containing the converted date 
41       */
42      public static String   toCompactString(String   date, String   lang) {
43          if (date != null && !date.equals(""))
44              return convertDate(new LocaleBean().getDateFormat(lang), "yyyyMMdd", date);
45          else
46              return "";
47      }
48      
49      /**
50       * This method formats a compact date (yyyyMMdd) to a localised date.
51       * @param date string containing the date to be converted
52       * @param lang to which language it should be converted to
53       * @return a string containing the converted date
54       */
55      public static String   toLocaleString(String   date, String   lang) {     
56          if (date != null && !date.equals(""))
57              return convertDate("yyyyMMdd", new LocaleBean().getDateFormat(lang), date);
58          else
59              return "";
60      }
61      
62      /**
63       * Converts a string containing a date between the given formats.
64       * @param formatIn current format of the string
65       * @param formatOut format the string should be converted to
66       * @param dateIn the string containing a date in the formatIn
67       * @return returns the converted string in the formatOut
68       */
69      public static String   convertDate(String   formatIn, String   formatOut, String   dateIn)
70      {
71          try {
72              return (new SimpleDateFormat  (formatOut)).format((new SimpleDateFormat  (formatIn).parse(dateIn, new ParsePosition  (0))));
73          } catch (Exception   ex) {
74              return null;
75          }
76      }
77  }
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