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1
20 package org.enhydra.barracuda.contrib.dbroggisch.display.filters;
21
22 import java.util.*;
23 import java.text.DateFormat  ;
24 import java.text.SimpleDateFormat ;
25 import org.enhydra.barracuda.contrib.dbroggisch.display.filters.dtd.*;
26 import java.lang.reflect.Field ;
27 import org.apache.log4j.*;
28
29 public class DateFilter implements Filter {
30 private static Logger logger = Logger.getLogger(DateFilter.class.getName());
31
32 private String formatString;
33 private DateFormat dateFormat;
34
35 private Locale loc;
36
37
38 public DateFilter(String formatString, Locale loc) {
39 if(loc == null) {
40 loc = Locale.getDefault();
41 } else {
42 this.loc = loc;
43 }
44 this.formatString = formatString;
45 }
46
47 public DateFilter(String formatString) {
48 this(formatString, null);
49 }
50
51 public DateFilter() {
52 this(null);
53 }
54
55
56 public Object filter(Object obj, FilterContext context)
57 throws FilterException
58 {
59 if(obj == null) {
60 return null;
61 }
62 if(obj instanceof java.util.Date ) {
63 if(dateFormat == null) {
64 dateFormat = new SimpleDateFormat (formatString, loc);
65 }
66 return dateFormat.format((java.util.Date )obj);
67 } else {
68 throw new FilterException("Not a java.util.Date");
69 }
70 }
71
72
73 public Filter configure(Object obj)
74 throws FilterException
75 {
76 org.enhydra.barracuda.contrib.dbroggisch.display.filters.dtd.Date xmlObj = (org.enhydra.barracuda.contrib.dbroggisch.display.filters.dtd.Date)obj;
77 this.formatString = xmlObj.getValue();
78 String locale = xmlObj.getLocale();
79 if(locale != null && !locale.trim().equals("")) {
80 try {
81 Field f = java.util.Locale .class.getDeclaredField(locale);
82 Locale loc = (Locale)f.get(null);
83 String [] ar = new String [2];
84 if(logger.isDebugEnabled()) {
85 logger.debug("Setting locale " + locale);
86 }
87 this.loc = loc;
88 }
89 catch(NoSuchFieldException ex) {
90 logger.error(ex.getMessage());
91 ex.printStackTrace();
92 throw new FilterException("Error configuring DateFilter");
93 }
94 catch(IllegalAccessException ex) {
95 logger.error(ex.getMessage());
96 ex.printStackTrace();
97 throw new FilterException("Error configuring DateFilter");
98 }
99 }
100 return this;
101
102 }
103
104 }
105 |
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