| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.iapi.tools.i18n.LocalizedResource |
| 4 | |
| 5 | Copyright 2004 The Apache Software Foundation or its licensors, as applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | You may obtain a copy of the License at |
| 10 | |
| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | |
| 13 | Unless required by applicable law or agreed to in writing, software |
| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | See the License for the specific language governing permissions and |
| 17 | limitations under the License. |
| 18 | |
| 19 | */ |
| 20 | package org.apache.derby.iapi.tools.i18n; |
| 21 | |
| 22 | import java.io.InputStream; |
| 23 | import java.io.OutputStream; |
| 24 | import java.io.UnsupportedEncodingException; |
| 25 | |
| 26 | import java.util.ResourceBundle; |
| 27 | import java.util.Date; |
| 28 | import java.util.Locale; |
| 29 | import java.util.StringTokenizer; |
| 30 | |
| 31 | import java.text.MessageFormat; |
| 32 | import java.text.NumberFormat; |
| 33 | import java.text.DecimalFormat; |
| 34 | import java.text.DateFormat; |
| 35 | import java.text.ParseException; |
| 36 | import java.text.FieldPosition; |
| 37 | |
| 38 | import java.sql.Timestamp; |
| 39 | import java.sql.ResultSet; |
| 40 | import java.sql.ResultSetMetaData; |
| 41 | import java.sql.SQLException; |
| 42 | import java.sql.Types; |
| 43 | |
| 44 | |
| 45 | public final class LocalizedResource implements java.security.PrivilegedAction { |
| 46 | |
| 47 | private static boolean HAVE_BIG_DECIMAL; |
| 48 | |
| 49 | { |
| 50 | boolean haveBigDecimal; |
| 51 | try { |
| 52 | Class.forName("java.math.BigDecimal"); |
| 53 | haveBigDecimal = true; |
| 54 | } catch (Throwable t) { |
| 55 | haveBigDecimal = false; |
| 56 | } |
| 57 | HAVE_BIG_DECIMAL = haveBigDecimal; |
| 58 | } |
| 59 | |
| 60 | private ResourceBundle res; |
| 61 | private Locale locale; |
| 62 | private String encode; |
| 63 | private final static String MESSAGE_FILE = "org.apache.derby.loc.toolsmessages"; |
| 64 | private final static String ENV_CODESET = "derby.ui.codeset"; |
| 65 | private final static String ENV_LOCALE = "derby.ui.locale"; |
| 66 | private String messageFileName; |
| 67 | private String resourceKey; |
| 68 | private LocalizedOutput out; |
| 69 | private LocalizedInput in; |
| 70 | private boolean enableLocalized; |
| 71 | private boolean unicodeEscape; |
| 72 | private static LocalizedResource local; |
| 73 | private int dateSize; |
| 74 | private int timeSize; |
| 75 | private int timestampSize; |
| 76 | private DateFormat formatDate; |
| 77 | private DateFormat formatTime; |
| 78 | private DateFormat formatTimestamp; |
| 79 | private NumberFormat formatNumber; |
| 80 | private DecimalFormat formatDecimal; |
| 81 | public LocalizedResource(){ |
| 82 | init(); |
| 83 | } |
| 84 | public LocalizedResource(String encStr, String locStr, String msgF){ |
| 85 | init(encStr,locStr,msgF); |
| 86 | } |
| 87 | public static LocalizedResource getInstance(){ |
| 88 | if (local == null){ |
| 89 | local = new LocalizedResource(); |
| 90 | } |
| 91 | return local; |
| 92 | } |
| 93 | public void init(){ |
| 94 | init(null,null,null); |
| 95 | } |
| 96 | public void init (String encStr, String locStr, String msgF){ |
| 97 | if (encStr != null){ |
| 98 | encode = encStr; |
| 99 | } |
| 100 | //then get encoding string from environment |
| 101 | if (encode == null) { |
| 102 | String eEncode = getEnvProperty(ENV_CODESET); |
| 103 | if ( eEncode != null ){ |
| 104 | encode = eEncode; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | // If null at this point then the default encoding |
| 109 | // will be always used. |
| 110 | |
| 111 | //get locale string from the caller first |
| 112 | locale = getNewLocale(locStr); |
| 113 | |
| 114 | //if null, get locale again from the environment variable |
| 115 | if (locale==null) { |
| 116 | String s = getEnvProperty(ENV_LOCALE); |
| 117 | locale = getNewLocale(s); |
| 118 | } |
| 119 | //get the default locale if forced |
| 120 | if (locale==null){ |
| 121 | locale = Locale.getDefault(); |
| 122 | } |
| 123 | if (msgF != null) { |
| 124 | messageFileName = msgF; |
| 125 | } |
| 126 | else { |
| 127 | messageFileName = MESSAGE_FILE; |
| 128 | } |
| 129 | //create default in/out |
| 130 | out = getNewOutput(System.out); |
| 131 | in = getNewInput(System.in); |
| 132 | |
| 133 | //for faster code: get the format objs |
| 134 | if (enableLocalized && locale != null){ |
| 135 | formatDecimal = (DecimalFormat)DecimalFormat.getInstance(locale); |
| 136 | formatNumber = NumberFormat.getInstance(locale); |
| 137 | formatDate = DateFormat.getDateInstance(DateFormat.LONG,locale); |
| 138 | formatTime = DateFormat.getTimeInstance(DateFormat.LONG,locale); |
| 139 | formatTimestamp = DateFormat.getDateTimeInstance(DateFormat.LONG, |
| 140 | DateFormat.LONG, locale); |
| 141 | } |
| 142 | else { |
| 143 | formatDecimal = (DecimalFormat)DecimalFormat.getInstance(); |
| 144 | formatNumber = NumberFormat.getInstance(); |
| 145 | formatDate = DateFormat.getDateInstance(DateFormat.LONG); |
| 146 | formatTime = DateFormat.getTimeInstance(DateFormat.LONG); |
| 147 | formatTimestamp = DateFormat.getDateTimeInstance(DateFormat.LONG, |
| 148 | DateFormat.LONG); |
| 149 | } |
| 150 | //initialize display sizes for columns |
| 151 | initMaxSizes2(); |
| 152 | } |
| 153 | //get the message file resource according to the locale |
| 154 | //fall back to English message file if locale message file is not found |
| 155 | private void setResource(){ |
| 156 | if (res != null){ |
| 157 | return; |
| 158 | } |
| 159 | if ( locale == null || locale.toString().equals("none") ){ |
| 160 | res = ResourceBundle.getBundle(MESSAGE_FILE); |
| 161 | } |
| 162 | else |
| 163 | try { |
| 164 | res = ResourceBundle.getBundle(messageFileName,locale); |
| 165 | } |
| 166 | catch(java.util.MissingResourceException e){ |
| 167 | res = ResourceBundle.getBundle(messageFileName,Locale.ENGLISH); |
| 168 | } |
| 169 | } |
| 170 | private void initMaxSizes2(){ |
| 171 | dateSize = 0; |
| 172 | timeSize = 0; |
| 173 | timestampSize = 0; |
| 174 | |
| 175 | int len; |
| 176 | |
| 177 | // check the date & timestamp max length |
| 178 | // 3900/01/28 !! original devloper thought they were getting 2000/01/28 |
| 179 | Date d = new Date(60907276800000L); |
| 180 | Timestamp t = new Timestamp(d.getTime()); |
| 181 | for(int month = 0 ; month <=11 ; month++, d.setTime(d.getTime() + (30L * 24L * 60L * 60L * 1000L))) { |
| 182 | len=getDateAsString(d).length(); |
| 183 | |
| 184 | if(len > dateSize ) { |
| 185 | dateSize=len; |
| 186 | } |
| 187 | |
| 188 | t.setTime(d.getTime() + ((((21L * 60L) + 59L) * 60L) + 59L)); |
| 189 | len=getTimestampAsString(t).length(); |
| 190 | |
| 191 | if(len > timestampSize) { |
| 192 | timestampSize=len; |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | // set the time max length |
| 197 | // minimum of 18 because the old buggy code always used 18 |
| 198 | len = 18; |
| 199 | for (int hour = 0 ; hour < 24; hour++) { |
| 200 | |
| 201 | long secs = (hour * 3600L) + (59 * 60L) + 59L; |
| 202 | |
| 203 | long ms = secs * 1000L; |
| 204 | |
| 205 | Date td = new Date(ms); |
| 206 | |
| 207 | String fd = formatTime.format(td); |
| 208 | |
| 209 | if (fd.length() > len) |
| 210 | len = fd.length(); |
| 211 | } |
| 212 | timeSize=len; |
| 213 | |
| 214 | } |
| 215 | |
| 216 | public LocalizedInput getNewInput(InputStream i) { |
| 217 | try { |
| 218 | if (encode != null) |
| 219 | return new LocalizedInput(i,encode); |
| 220 | } |
| 221 | catch (UnsupportedEncodingException e){ |
| 222 | |
| 223 | } |
| 224 | return new LocalizedInput(i); |
| 225 | } |
| 226 | |
| 227 | public LocalizedInput getNewEncodedInput(InputStream i, String encoding) { |
| 228 | try { |
| 229 | return new LocalizedInput(i,encoding); |
| 230 | } |
| 231 | catch (UnsupportedEncodingException e){ |
| 232 | |
| 233 | } |
| 234 | return new LocalizedInput(i); |
| 235 | } |
| 236 | |
| 237 | public LocalizedOutput getNewOutput(OutputStream o){ |
| 238 | try { |
| 239 | if (encode != null) |
| 240 | return new LocalizedOutput(o,encode); |
| 241 | } |
| 242 | catch(UnsupportedEncodingException e){ |
| 243 | } |
| 244 | return new LocalizedOutput(o); |
| 245 | } |
| 246 | public String getTextMessage(String key ) { |
| 247 | if ( res == null){ |
| 248 | setResource(); |
| 249 | } |
| 250 | String s = key; |
| 251 | try{ |
| 252 | s = res.getString(key); |
| 253 | } catch (Exception e) { |
| 254 | s = key; |
| 255 | } |
| 256 | //System.out.println(local.toString()); |
| 257 | //System.out.println("GetKey:"+key+"="+s); |
| 258 | return s; |
| 259 | } |
| 260 | public String getTextMessage(String key, Object o){ |
| 261 | Object [] att=new Object[] {o}; |
| 262 | return getTextMessage(key,att); |
| 263 | } |
| 264 | public String getTextMessage(String key, Object o1, Object o2){ |
| 265 | Object [] att=new Object[] {o1,o2}; |
| 266 | return getTextMessage(key,att); |
| 267 | } |
| 268 | public String getTextMessage(String key, Object o1, Object o2, Object o3){ |
| 269 | Object [] att=new Object[] {o1,o2,o3}; |
| 270 | return getTextMessage(key,att); |
| 271 | } |
| 272 | public String getTextMessage(String key, Object o1, Object o2, Object o3, Object o4){ |
| 273 | Object [] att=new Object[] {o1,o2,o3,o4}; |
| 274 | return getTextMessage(key,att); |
| 275 | } |
| 276 | private Locale getNewLocale(String locStr){ |
| 277 | String l="", r="", v=""; |
| 278 | StringTokenizer st; |
| 279 | if (locStr==null) { |
| 280 | return null; |
| 281 | } |
| 282 | st=new StringTokenizer(locStr, "_"); |
| 283 | try { |
| 284 | l=st.nextToken(); |
| 285 | if(st.hasMoreTokens()==true) |
| 286 | r=st.nextToken(); |
| 287 | if(st.hasMoreTokens()==true) |
| 288 | v=st.nextToken(); |
| 289 | return new Locale(l,r,v); |
| 290 | } catch (Exception e) { |
| 291 | return null; |
| 292 | } |
| 293 | } |
| 294 | public String getTextMessage(String key, Object [] objectArr) { |
| 295 | if (res == null){ |
| 296 | setResource(); |
| 297 | } |
| 298 | try{ |
| 299 | return MessageFormat.format(res.getString(key), objectArr); |
| 300 | } catch (Exception e) { |
| 301 | String tmpFormat = key; |
| 302 | for (int i=0; i<objectArr.length; i++) |
| 303 | tmpFormat = tmpFormat + ", <{" + (i) + "}>"; |
| 304 | return MessageFormat.format(tmpFormat, objectArr); |
| 305 | } |
| 306 | } |
| 307 | public String getLocalizedString(ResultSet rs, |
| 308 | ResultSetMetaData rsm, |
| 309 | int columnNumber) throws SQLException{ |
| 310 | if (!enableLocalized){ |
| 311 | return rs.getString(columnNumber); |
| 312 | } |
| 313 | int type = rsm.getColumnType(columnNumber); |
| 314 | if ( type == Types.DATE ) { |
| 315 | return getDateAsString(rs.getDate(columnNumber)); |
| 316 | } |
| 317 | else if ( type == Types.INTEGER || type == Types.SMALLINT || |
| 318 | type == Types.BIGINT || type == Types.TINYINT ) { |
| 319 | return getNumberAsString(rs.getLong(columnNumber)); |
| 320 | } |
| 321 | else if (type == Types.REAL || type == Types.FLOAT || |
| 322 | type == Types.DOUBLE ) { |
| 323 | return getNumberAsString(rs.getDouble(columnNumber)); |
| 324 | } |
| 325 | else if (HAVE_BIG_DECIMAL && (type == Types.NUMERIC || type == Types.DECIMAL)) { |
| 326 | return getNumberAsString(rs.getBigDecimal(columnNumber, |
| 327 | rsm.getScale(columnNumber))); |
| 328 | } |
| 329 | else if (type == Types.TIME ) { |
| 330 | return getTimeAsString(rs.getTime(columnNumber)); |
| 331 | } |
| 332 | else if (type == Types.TIMESTAMP ) { |
| 333 | return getTimestampAsString(rs.getTimestamp(columnNumber)); |
| 334 | } |
| 335 | return rs.getString(columnNumber); |
| 336 | } |
| 337 | |
| 338 | public String getDateAsString(Date d){ |
| 339 | if (!enableLocalized){ |
| 340 | return d.toString(); |
| 341 | } |
| 342 | return formatDate.format(d); |
| 343 | } |
| 344 | public String getTimeAsString(Date t){ |
| 345 | if (!enableLocalized){ |
| 346 | return t.toString(); |
| 347 | } |
| 348 | return formatTime.format(t, new StringBuffer(), |
| 349 | new java.text.FieldPosition(0)).toString(); |
| 350 | } |
| 351 | public String getNumberAsString(int o){ |
| 352 | if (enableLocalized){ |
| 353 | return formatNumber.format(o); |
| 354 | } |
| 355 | else { |
| 356 | return String.valueOf(o); |
| 357 | } |
| 358 | } |
| 359 | public String getNumberAsString(long o){ |
| 360 | if (enableLocalized){ |
| 361 | return formatNumber.format(o); |
| 362 | } |
| 363 | else{ |
| 364 | return String.valueOf(o); |
| 365 | } |
| 366 | } |
| 367 | public String getNumberAsString(Object o){ |
| 368 | if (enableLocalized){ |
| 369 | return formatNumber.format(o, new StringBuffer(), |
| 370 | new FieldPosition(0)).toString(); |
| 371 | } |
| 372 | else { |
| 373 | return o.toString(); |
| 374 | } |
| 375 | } |
| 376 | public String getNumberAsString(double o){ |
| 377 | if (!enableLocalized) { |
| 378 | return String.valueOf(o); |
| 379 | } |
| 380 | return formatDecimal.format(o); |
| 381 | } |
| 382 | public String getTimestampAsString(Timestamp t){ |
| 383 | if (!enableLocalized){ |
| 384 | return t.toString(); |
| 385 | } |
| 386 | return formatTime.format(t, new StringBuffer(), |
| 387 | new java.text.FieldPosition(0)).toString(); |
| 388 | } |
| 389 | public int getColumnDisplaySize(ResultSetMetaData rsm, |
| 390 | int columnNumber) throws SQLException{ |
| 391 | if (!enableLocalized){ |
| 392 | return rsm.getColumnDisplaySize(columnNumber); |
| 393 | } |
| 394 | int type = rsm.getColumnType(columnNumber); |
| 395 | if (type == Types.DATE) |
| 396 | return dateSize; |
| 397 | if (type == Types.TIME) |
| 398 | return timeSize; |
| 399 | if (type == Types.TIMESTAMP) |
| 400 | return timestampSize; |
| 401 | return rsm.getColumnDisplaySize(columnNumber); |
| 402 | } |
| 403 | public String getStringFromDate(String dateStr) |
| 404 | throws ParseException{ |
| 405 | if (!enableLocalized){ |
| 406 | return dateStr; |
| 407 | } |
| 408 | Date d = formatDate.parse(dateStr); |
| 409 | return new java.sql.Date(d.getTime()).toString(); |
| 410 | } |
| 411 | public String getStringFromTime(String timeStr) |
| 412 | throws ParseException{ |
| 413 | if (!enableLocalized){ |
| 414 | return timeStr; |
| 415 | } |
| 416 | Date t = formatTime.parse(timeStr); |
| 417 | return new java.sql.Time(t.getTime()).toString(); |
| 418 | } |
| 419 | public String getStringFromValue(String val) |
| 420 | throws ParseException{ |
| 421 | if (!enableLocalized){ |
| 422 | return val; |
| 423 | } |
| 424 | return formatNumber.parse(val).toString(); |
| 425 | } |
| 426 | public String getStringFromTimestamp(String timestampStr) |
| 427 | throws ParseException{ |
| 428 | if (!enableLocalized){ |
| 429 | return timestampStr; |
| 430 | } |
| 431 | Date ts = formatTimestamp.parse(timestampStr); |
| 432 | return new java.sql.Timestamp(ts.getTime()).toString(); |
| 433 | } |
| 434 | public Locale getLocale(){ |
| 435 | return locale; |
| 436 | } |
| 437 | |
| 438 | private final synchronized String getEnvProperty(String key) { |
| 439 | String s; |
| 440 | try |
| 441 | { |
| 442 | resourceKey = key; |
| 443 | s = (String) java.security.AccessController.doPrivileged(this); |
| 444 | } |
| 445 | catch (SecurityException se) { |
| 446 | s = null; |
| 447 | } |
| 448 | //System.out.println("{"+resourceKey+"="+s+"}"); |
| 449 | return s; |
| 450 | } |
| 451 | public final Object run() { |
| 452 | String s = System.getProperty(resourceKey); |
| 453 | return s; |
| 454 | } |
| 455 | public static boolean enableLocalization(boolean mode) { |
| 456 | getInstance().enableLocalized = mode; |
| 457 | //re-initialized locale |
| 458 | getInstance().init(); |
| 459 | return mode; |
| 460 | } |
| 461 | public boolean isLocalized(){ |
| 462 | return getInstance().enableLocalized; |
| 463 | } |
| 464 | public static String getMessage(String key){ |
| 465 | return getInstance().getTextMessage(key); |
| 466 | } |
| 467 | public static String getMessage(String key, Object o1){ |
| 468 | return getInstance().getTextMessage(key,o1); |
| 469 | } |
| 470 | public static String getMessage(String key, Object o1, Object o2){ |
| 471 | return getInstance().getTextMessage(key,o1,o2); |
| 472 | } |
| 473 | public static String getMessage(String key, Object o1, Object o2, Object o3){ |
| 474 | return getInstance().getTextMessage(key,o1,o2,o3); |
| 475 | } |
| 476 | public static String getMessage(String key, Object o1, Object o2, Object o3, Object o4){ |
| 477 | return getInstance().getTextMessage(key,o1,o2,o3,o4); |
| 478 | } |
| 479 | public static LocalizedOutput OutputWriter(){ |
| 480 | return getInstance().out; |
| 481 | } |
| 482 | public static LocalizedInput InputReader(){ |
| 483 | return getInstance().in; |
| 484 | } |
| 485 | public static String getNumber(long o){ |
| 486 | return getInstance().getNumberAsString(o); |
| 487 | } |
| 488 | public static String getNumber(int o){ |
| 489 | return getInstance().getNumberAsString(o); |
| 490 | } |
| 491 | public static void setUnicodeEscape(boolean u){ |
| 492 | getInstance().unicodeEscape = u; |
| 493 | } |
| 494 | public static boolean getUnicodeEscape(){ |
| 495 | return getInstance().unicodeEscape; |
| 496 | } |
| 497 | public String toString(){ |
| 498 | String s = "toString(){\n" + |
| 499 | "locale=" + (locale==null?"null":locale.toString()) + "\n" + |
| 500 | "encode=" + encode + "\n" + |
| 501 | "messageFile=" + messageFileName + "\n" + |
| 502 | "resourceKey=" + resourceKey + "\n" + |
| 503 | "enableLocalized=" + enableLocalized + " \n" + |
| 504 | "unicodeEscape=" + unicodeEscape + "\n" + |
| 505 | "dateSize=" + dateSize + "\n" + |
| 506 | "timeSize=" + timeSize + "\n" + |
| 507 | "timestampSize="+timestampSize+ "\n}"; |
| 508 | return s; |
| 509 | } |
| 510 | } |