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1
28 package net.sf.jasperreports.engine.util;
29
30 import java.text.DateFormat  ;
31 import java.text.DecimalFormat ;
32 import java.text.NumberFormat ;
33 import java.text.SimpleDateFormat ;
34 import java.util.Locale ;
35 import java.util.TimeZone ;
36
37 import net.sf.jasperreports.engine.JRRuntimeException;
38
39
40
44 public class DefaultFormatFactory implements FormatFactory
45 {
46
47
51 public static final String STANDARD_DATE_FORMAT_DEFAULT = "default";
52
53
57 public static final String STANDARD_DATE_FORMAT_SHORT = "short";
58
59
63 public static final String STANDARD_DATE_FORMAT_MEDIUM = "medium";
64
65
69 public static final String STANDARD_DATE_FORMAT_LONG = "long";
70
71
75 public static final String STANDARD_DATE_FORMAT_FULL = "full";
76
77
80 public static final String STANDARD_DATE_FORMAT_HIDE = "hide";
81
82
85 public static final String STANDARD_DATE_FORMAT_SEPARATOR = ",";
86
87
88 public DateFormat createDateFormat(String pattern, Locale locale, TimeZone tz)
89 {
90 int[] dateStyle = null;
91 int[] timeStyle = null;
92 if (pattern != null && pattern.trim().length() > 0)
93 {
94 int sepIdx = pattern.indexOf(STANDARD_DATE_FORMAT_SEPARATOR);
95 String dateTok = sepIdx < 0 ? pattern : pattern.substring(0, sepIdx);
96 dateStyle = getDateStyle(dateTok);
97 if (dateStyle != null)
98 {
99 if (sepIdx >= 0)
100 {
101 String timeTok = pattern.substring(sepIdx + STANDARD_DATE_FORMAT_SEPARATOR.length());
102 timeStyle = getDateStyle(timeTok);
103 }
104 else
105 {
106 timeStyle = dateStyle;
107 }
108 }
109 }
110
111 DateFormat format;
112 if (dateStyle != null && timeStyle != null)
113 {
114 format = getDateFormat(dateStyle, timeStyle, locale);
115 }
116 else
117 {
118 if (locale == null)
119 {
120 format = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
121 }
122 else
123 {
124 format = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, locale);
125 }
126 if (
127 pattern != null && pattern.trim().length() > 0
128 && format instanceof SimpleDateFormat
129 )
130 {
131 ((SimpleDateFormat ) format).applyPattern(pattern);
132 }
133 }
134
135 format.setTimeZone(tz);
136
137 return format;
138 }
139
140
141 protected static int[] getDateStyle(String pattern)
142 {
143 if (pattern.equalsIgnoreCase(STANDARD_DATE_FORMAT_DEFAULT))
144 {
145 return new int[]{DateFormat.DEFAULT};
146 }
147 else if (pattern.equalsIgnoreCase(STANDARD_DATE_FORMAT_SHORT))
148 {
149 return new int[]{DateFormat.SHORT};
150 }
151 else if (pattern.equalsIgnoreCase(STANDARD_DATE_FORMAT_MEDIUM))
152 {
153 return new int[]{DateFormat.MEDIUM};
154 }
155 else if (pattern.equalsIgnoreCase(STANDARD_DATE_FORMAT_LONG))
156 {
157 return new int[]{DateFormat.LONG};
158 }
159 else if (pattern.equalsIgnoreCase(STANDARD_DATE_FORMAT_FULL))
160 {
161 return new int[]{DateFormat.FULL};
162 }
163 else if (pattern.equalsIgnoreCase(STANDARD_DATE_FORMAT_HIDE))
164 {
165 return new int[0];
166 }
167 else
168 {
169 return null;
170 }
171 }
172
173
174 protected static DateFormat getDateFormat(int[] dateStyle, int[] timeStyle, Locale locale)
175 {
176 if (dateStyle.length == 0)
177 {
178 if (timeStyle.length == 0)
179 {
180 return new SimpleDateFormat ("");
181 }
182
183 return locale == null ?
184 DateFormat.getTimeInstance(timeStyle[0]) :
185 DateFormat.getTimeInstance(timeStyle[0], locale);
186 }
187
188 if (timeStyle.length == 0)
189 {
190 return locale == null ?
191 DateFormat.getDateInstance(dateStyle[0]) :
192 DateFormat.getDateInstance(dateStyle[0], locale);
193 }
194
195 return locale == null ?
196 DateFormat.getDateTimeInstance(dateStyle[0], timeStyle[0]) :
197 DateFormat.getDateTimeInstance(dateStyle[0], timeStyle[0], locale);
198 }
199
200
201 public NumberFormat createNumberFormat(String pattern, Locale locale)
202 {
203 NumberFormat format = null;
204 if (pattern != null && pattern.trim().length() > 0)
205 {
206 if (locale == null)
207 {
208 format = NumberFormat.getNumberInstance();
209 }
210 else
211 {
212 format = NumberFormat.getNumberInstance(locale);
213 }
214
215 if (format instanceof DecimalFormat )
216 {
217 ((DecimalFormat ) format).applyPattern(pattern);
218 }
219 }
220 return format;
221 }
222
223
224 public static FormatFactory createFormatFactory(String formatFactoryClassName)
225 {
226 FormatFactory formatFactory = null;
227
228 if (formatFactoryClassName != null)
229 {
230 try
231 {
232 Class formatFactoryClass = JRClassLoader.loadClassForName(formatFactoryClassName);
233 formatFactory = (FormatFactory) formatFactoryClass.newInstance();
234 }
235 catch (ClassNotFoundException e)
236 {
237 throw new JRRuntimeException("Error loading format factory class : " + formatFactoryClassName, e);
238 }
239 catch (Exception e)
240 {
241 throw new JRRuntimeException("Error creating format factory instance : " + formatFactoryClassName, e);
242 }
243 }
244 else
245 {
246 formatFactory = new DefaultFormatFactory();
247 }
248
249 return formatFactory;
250 }
251
252
253 }
254 |
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