1 /* 2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.util; 27 28 import java.io.BufferedInputStream; 29 import java.io.DataInputStream; 30 import java.io.File; 31 import java.io.FileInputStream; 32 import java.io.FileReader; 33 import java.io.IOException; 34 import java.io.Serializable; 35 import java.security.AccessController; 36 import java.security.PrivilegedAction; 37 import java.util.logging.Level; 38 import java.util.regex.Pattern; 39 import java.util.regex.Matcher; 40 import java.util.spi.CurrencyNameProvider; 41 import java.util.spi.LocaleServiceProvider; 42 import sun.util.LocaleServiceProviderPool; 43 import sun.util.logging.PlatformLogger; 44 import sun.util.resources.LocaleData; 45 import sun.util.resources.OpenListResourceBundle; 46 47 48 /** 49 * Represents a currency. Currencies are identified by their ISO 4217 currency 50 * codes. Visit the <a href="http://www.iso.org/iso/en/prods-services/popstds/currencycodes.html"> 51 * ISO web site</a> for more information, including a table of 52 * currency codes. 53 * <p> 54 * The class is designed so that there's never more than one 55 * <code>Currency</code> instance for any given currency. Therefore, there's 56 * no public constructor. You obtain a <code>Currency</code> instance using 57 * the <code>getInstance</code> methods. 58 * <p> 59 * Users can supersede the Java runtime currency data by creating a properties 60 * file named <code><JAVA_HOME>/lib/currency.properties</code>. The contents 61 * of the properties file are key/value pairs of the ISO 3166 country codes 62 * and the ISO 4217 currency data respectively. The value part consists of 63 * three ISO 4217 values of a currency, i.e., an alphabetic code, a numeric 64 * code, and a minor unit. Those three ISO 4217 values are separated by commas. 65 * The lines which start with '#'s are considered comment lines. For example, 66 * <p> 67 * <code> 68 * #Sample currency properties<br> 69 * JP=JPZ,999,0 70 * </code> 71 * <p> 72 * will supersede the currency data for Japan. 73 * 74 * @since 1.4 75 */ 76 public final class Currency implements Serializable { 77 78 private static final long serialVersionUID = -158308464356906721L; 79 80 /** 81 * ISO 4217 currency code for this currency. 82 * 83 * @serial 84 */ 85 private final String currencyCode; 86 87 /** 88 * Default fraction digits for this currency. 89 * Set from currency data tables. 90 */ 91 transient private final int defaultFractionDigits; 92 93 /** 94 * ISO 4217 numeric code for this currency. 95 * Set from currency data tables. 96 */ 97 transient private final int numericCode; 98 99 100 // class data: instance map 101 102 private static HashMap<String, Currency> instances = new HashMap<String, Currency>(7); 103 private static HashSet<Currency> available; 104 105 106 // Class data: currency data obtained from currency.data file. 107 // Purpose: 108 // - determine valid country codes 109 // - determine valid currency codes 110 // - map country codes to currency codes 111 // - obtain default fraction digits for currency codes 112 // 113 // sc = special case; dfd = default fraction digits 114 // Simple countries are those where the country code is a prefix of the 115 // currency code, and there are no known plans to change the currency. 116 // 117 // table formats: 118 // - mainTable: 119 // - maps country code to 32-bit int 120 // - 26*26 entries, corresponding to [A-Z]*[A-Z] 121 // - \u007F -> not valid country 122 // - bits 18-31: unused 123 // - bits 8-17: numeric code (0 to 1023) 124 // - bit 7: 1 - special case, bits 0-4 indicate which one 125 // 0 - simple country, bits 0-4 indicate final char of currency code 126 // - bits 5-6: fraction digits for simple countries, 0 for special cases 127 // - bits 0-4: final char for currency code for simple country, or ID of special case 128 // - special case IDs: 129 // - 0: country has no currency 130 // - other: index into sc* arrays + 1 131 // - scCutOverTimes: cut-over time in millis as returned by 132 // System.currentTimeMillis for special case countries that are changing 133 // currencies; Long.MAX_VALUE for countries that are not changing currencies 134 // - scOldCurrencies: old currencies for special case countries 135 // - scNewCurrencies: new currencies for special case countries that are 136 // changing currencies; null for others 137 // - scOldCurrenciesDFD: default fraction digits for old currencies 138 // - scNewCurrenciesDFD: default fraction digits for new currencies, 0 for 139 // countries that are not changing currencies 140 // - otherCurrencies: concatenation of all currency codes that are not the 141 // main currency of a simple country, separated by "-" 142 // - otherCurrenciesDFD: decimal format digits for currencies in otherCurrencies, same order 143 144 static int formatVersion; 145 static int dataVersion; 146 static int[] mainTable; 147 static long[] scCutOverTimes; 148 static String[] scOldCurrencies; 149 static String[] scNewCurrencies; 150 static int[] scOldCurrenciesDFD; 151 static int[] scNewCurrenciesDFD; 152 static int[] scOldCurrenciesNumericCode; 153 static int[] scNewCurrenciesNumericCode; 154 static String otherCurrencies; 155 static int[] otherCurrenciesDFD; 156 static int[] otherCurrenciesNumericCode; 157 158 // handy constants - must match definitions in GenerateCurrencyData 159 // magic number 160 private static final int MAGIC_NUMBER = 0x43757244; 161 // number of characters from A to Z 162 private static final int A_TO_Z = ('Z' - 'A') + 1; 163 // entry for invalid country codes 164 private static final int INVALID_COUNTRY_ENTRY = 0x007F; 165 // entry for countries without currency 166 private static final int COUNTRY_WITHOUT_CURRENCY_ENTRY = 0x0080; 167 // mask for simple case country entries 168 private static final int SIMPLE_CASE_COUNTRY_MASK = 0x0000; 169 // mask for simple case country entry final character 170 private static final int SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK = 0x001F; 171 // mask for simple case country entry default currency digits 172 private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK = 0x0060; 173 // shift count for simple case country entry default currency digits 174 private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT = 5; 175 // mask for special case country entries 176 private static final int SPECIAL_CASE_COUNTRY_MASK = 0x0080; 177 // mask for special case country index 178 private static final int SPECIAL_CASE_COUNTRY_INDEX_MASK = 0x001F; 179 // delta from entry index component in main table to index into special case tables 180 private static final int SPECIAL_CASE_COUNTRY_INDEX_DELTA = 1; 181 // mask for distinguishing simple and special case countries 182 private static final int COUNTRY_TYPE_MASK = SIMPLE_CASE_COUNTRY_MASK | SPECIAL_CASE_COUNTRY_MASK; 183 // mask for the numeric code of the currency 184 private static final int NUMERIC_CODE_MASK = 0x0003FF00; 185 // shift count for the numeric code of the currency 186 private static final int NUMERIC_CODE_SHIFT = 8; 187 188 // Currency data format version 189 private static final int VALID_FORMAT_VERSION = 1; 190 191 static { 192 AccessController.doPrivileged(new PrivilegedAction() { 193 public Object run() { 194 String homeDir = System.getProperty("java.home"); 195 try { 196 String dataFile = homeDir + File.separator + 197 "lib" + File.separator + "currency.data"; 198 DataInputStream dis = new DataInputStream( 199 new BufferedInputStream( 200 new FileInputStream(dataFile))); 201 if (dis.readInt() != MAGIC_NUMBER) { 202 throw new InternalError("Currency data is possibly corrupted"); 203 } 204 formatVersion = dis.readInt(); 205 if (formatVersion != VALID_FORMAT_VERSION) { 206 throw new InternalError("Currency data format is incorrect"); 207 } 208 dataVersion = dis.readInt(); 209 mainTable = readIntArray(dis, A_TO_Z * A_TO_Z); 210 int scCount = dis.readInt(); 211 scCutOverTimes = readLongArray(dis, scCount); 212 scOldCurrencies = readStringArray(dis, scCount); 213 scNewCurrencies = readStringArray(dis, scCount); 214 scOldCurrenciesDFD = readIntArray(dis, scCount); 215 scNewCurrenciesDFD = readIntArray(dis, scCount); 216 scOldCurrenciesNumericCode = readIntArray(dis, scCount); 217 scNewCurrenciesNumericCode = readIntArray(dis, scCount); 218 int ocCount = dis.readInt(); 219 otherCurrencies = dis.readUTF(); 220 otherCurrenciesDFD = readIntArray(dis, ocCount); 221 otherCurrenciesNumericCode = readIntArray(dis, ocCount); 222 dis.close(); 223 } catch (IOException e) { 224 InternalError ie = new InternalError(); 225 ie.initCause(e); 226 throw ie; 227 } 228 229 // look for the properties file for overrides 230 try { 231 File propFile = new File(homeDir + File.separator + 232 "lib" + File.separator + 233 "currency.properties"); 234 if (propFile.exists()) { 235 Properties props = new Properties(); 236 try (FileReader fr = new FileReader(propFile)) { 237 props.load(fr); 238 } 239 Set<String> keys = props.stringPropertyNames(); 240 Pattern propertiesPattern = 241 Pattern.compile("([A-Z]{3})\\s*,\\s*(\\d{3})\\s*,\\s*([0-3])"); 242 for (String key : keys) { 243 replaceCurrencyData(propertiesPattern, 244 key.toUpperCase(Locale.ROOT), 245 props.getProperty(key).toUpperCase(Locale.ROOT)); 246 } 247 } 248 } catch (IOException e) { 249 info("currency.properties is ignored because of an IOException", e); 250 } 251 return null; 252 } 253 }); 254 } 255 256 /** 257 * Constants for retrieving localized names from the name providers. 258 */ 259 private static final int SYMBOL = 0; 260 private static final int DISPLAYNAME = 1; 261 262 263 /** 264 * Constructs a <code>Currency</code> instance. The constructor is private 265 * so that we can insure that there's never more than one instance for a 266 * given currency. 267 */ 268 private Currency(String currencyCode, int defaultFractionDigits, int numericCode) { 269 this.currencyCode = currencyCode; 270 this.defaultFractionDigits = defaultFractionDigits; 271 this.numericCode = numericCode; 272 } 273 274 /** 275 * Returns the <code>Currency</code> instance for the given currency code. 276 * 277 * @param currencyCode the ISO 4217 code of the currency 278 * @return the <code>Currency</code> instance for the given currency code 279 * @exception NullPointerException if <code>currencyCode</code> is null 280 * @exception IllegalArgumentException if <code>currencyCode</code> is not 281 * a supported ISO 4217 code. 282 */ 283 public static Currency getInstance(String currencyCode) { 284 return getInstance(currencyCode, Integer.MIN_VALUE, 0); 285 } 286 287 private static Currency getInstance(String currencyCode, int defaultFractionDigits, 288 int numericCode) { 289 synchronized (instances) { 290 // Try to look up the currency code in the instances table. 291 // This does the null pointer check as a side effect. 292 // Also, if there already is an entry, the currencyCode must be valid. 293 Currency instance = instances.get(currencyCode); 294 if (instance != null) { 295 return instance; 296 } 297 298 if (defaultFractionDigits == Integer.MIN_VALUE) { 299 // Currency code not internally generated, need to verify first 300 // A currency code must have 3 characters and exist in the main table 301 // or in the list of other currencies. 302 if (currencyCode.length() != 3) { 303 throw new IllegalArgumentException(); 304 } 305 char char1 = currencyCode.charAt(0); 306 char char2 = currencyCode.charAt(1); 307 int tableEntry = getMainTableEntry(char1, char2); 308 if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK 309 && tableEntry != INVALID_COUNTRY_ENTRY 310 && currencyCode.charAt(2) - 'A' == (tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK)) { 311 defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT; 312 numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT; 313 } else { 314 // Check for '-' separately so we don't get false hits in the table. 315 if (currencyCode.charAt(2) == '-') { 316 throw new IllegalArgumentException(); 317 } 318 int index = otherCurrencies.indexOf(currencyCode); 319 if (index == -1) { 320 throw new IllegalArgumentException(); 321 } 322 defaultFractionDigits = otherCurrenciesDFD[index / 4]; 323 numericCode = otherCurrenciesNumericCode[index / 4]; 324 } 325 } 326 327 instance = new Currency(currencyCode, defaultFractionDigits, numericCode); 328 instances.put(currencyCode, instance); 329 return instance; 330 } 331 } 332 333 /** 334 * Returns the <code>Currency</code> instance for the country of the 335 * given locale. The language and variant components of the locale 336 * are ignored. The result may vary over time, as countries change their 337 * currencies. For example, for the original member countries of the 338 * European Monetary Union, the method returns the old national currencies 339 * until December 31, 2001, and the Euro from January 1, 2002, local time 340 * of the respective countries. 341 * <p> 342 * The method returns <code>null</code> for territories that don't 343 * have a currency, such as Antarctica. 344 * 345 * @param locale the locale for whose country a <code>Currency</code> 346 * instance is needed 347 * @return the <code>Currency</code> instance for the country of the given 348 * locale, or null 349 * @exception NullPointerException if <code>locale</code> or its country 350 * code is null 351 * @exception IllegalArgumentException if the country of the given locale 352 * is not a supported ISO 3166 country code. 353 */ 354 public static Currency getInstance(Locale locale) { 355 String country = locale.getCountry(); 356 if (country == null) { 357 throw new NullPointerException(); 358 } 359 360 if (country.length() != 2) { 361 throw new IllegalArgumentException(); 362 } 363 364 char char1 = country.charAt(0); 365 char char2 = country.charAt(1); 366 int tableEntry = getMainTableEntry(char1, char2); 367 if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK 368 && tableEntry != INVALID_COUNTRY_ENTRY) { 369 char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A'); 370 int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT; 371 int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT; 372 StringBuffer sb = new StringBuffer(country); 373 sb.append(finalChar); 374 return getInstance(sb.toString(), defaultFractionDigits, numericCode); 375 } else { 376 // special cases 377 if (tableEntry == INVALID_COUNTRY_ENTRY) { 378 throw new IllegalArgumentException(); 379 } 380 if (tableEntry == COUNTRY_WITHOUT_CURRENCY_ENTRY) { 381 return null; 382 } else { 383 int index = (tableEntry & SPECIAL_CASE_COUNTRY_INDEX_MASK) - SPECIAL_CASE_COUNTRY_INDEX_DELTA; 384 if (scCutOverTimes[index] == Long.MAX_VALUE || System.currentTimeMillis() < scCutOverTimes[index]) { 385 return getInstance(scOldCurrencies[index], scOldCurrenciesDFD[index], 386 scOldCurrenciesNumericCode[index]); 387 } else { 388 return getInstance(scNewCurrencies[index], scNewCurrenciesDFD[index], 389 scNewCurrenciesNumericCode[index]); 390 } 391 } 392 } 393 } 394 395 /** 396 * Gets the set of available currencies. The returned set of currencies 397 * contains all of the available currencies, which may include currencies 398 * that represent obsolete ISO 4217 codes. The set can be modified 399 * without affecting the available currencies in the runtime. 400 * 401 * @return the set of available currencies. If there is no currency 402 * available in the runtime, the returned set is empty. 403 * @since 1.7 404 */ 405 public static Set<Currency> getAvailableCurrencies() { 406 synchronized(Currency.class) { 407 if (available == null) { 408 available = new HashSet<Currency>(256); 409 410 // Add simple currencies first 411 for (char c1 = 'A'; c1 <= 'Z'; c1 ++) { 412 for (char c2 = 'A'; c2 <= 'Z'; c2 ++) { 413 int tableEntry = getMainTableEntry(c1, c2); 414 if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK 415 && tableEntry != INVALID_COUNTRY_ENTRY) { 416 char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A'); 417 int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT; 418 int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT; 419 StringBuilder sb = new StringBuilder(); 420 sb.append(c1); 421 sb.append(c2); 422 sb.append(finalChar); 423 available.add(getInstance(sb.toString(), defaultFractionDigits, numericCode)); 424 } 425 } 426 } 427 428 // Now add other currencies 429 StringTokenizer st = new StringTokenizer(otherCurrencies, "-"); 430 while (st.hasMoreElements()) { 431 available.add(getInstance((String)st.nextElement())); 432 } 433 } 434 } 435 436 return (Set<Currency>) available.clone(); 437 } 438 439 /** 440 * Gets the ISO 4217 currency code of this currency. 441 * 442 * @return the ISO 4217 currency code of this currency. 443 */ 444 public String getCurrencyCode() { 445 return currencyCode; 446 } 447 448 /** 449 * Gets the symbol of this currency for the default locale. 450 * For example, for the US Dollar, the symbol is "$" if the default 451 * locale is the US, while for other locales it may be "US$". If no 452 * symbol can be determined, the ISO 4217 currency code is returned. 453 * 454 * @return the symbol of this currency for the default locale 455 */ 456 public String getSymbol() { 457 return getSymbol(Locale.getDefault(Locale.Category.DISPLAY)); 458 } 459 460 /** 461 * Gets the symbol of this currency for the specified locale. 462 * For example, for the US Dollar, the symbol is "$" if the specified 463 * locale is the US, while for other locales it may be "US$". If no 464 * symbol can be determined, the ISO 4217 currency code is returned. 465 * 466 * @param locale the locale for which a display name for this currency is 467 * needed 468 * @return the symbol of this currency for the specified locale 469 * @exception NullPointerException if <code>locale</code> is null 470 */ 471 public String getSymbol(Locale locale) { 472 try { 473 // Check whether a provider can provide an implementation that's closer 474 // to the requested locale than what the Java runtime itself can provide. 475 LocaleServiceProviderPool pool = 476 LocaleServiceProviderPool.getPool(CurrencyNameProvider.class); 477 478 if (pool.hasProviders()) { 479 // Assuming that all the country locales include necessary currency 480 // symbols in the Java runtime's resources, so there is no need to 481 // examine whether Java runtime's currency resource bundle is missing 482 // names. Therefore, no resource bundle is provided for calling this 483 // method. 484 String symbol = pool.getLocalizedObject( 485 CurrencyNameGetter.INSTANCE, 486 locale, (OpenListResourceBundle)null, 487 currencyCode, SYMBOL); 488 if (symbol != null) { 489 return symbol; 490 } 491 } 492 493 ResourceBundle bundle = LocaleData.getCurrencyNames(locale); 494 return bundle.getString(currencyCode); 495 } catch (MissingResourceException e) { 496 // use currency code as symbol of last resort 497 return currencyCode; 498 } 499 } 500 501 /** 502 * Gets the default number of fraction digits used with this currency. 503 * For example, the default number of fraction digits for the Euro is 2, 504 * while for the Japanese Yen it's 0. 505 * In the case of pseudo-currencies, such as IMF Special Drawing Rights, 506 * -1 is returned. 507 * 508 * @return the default number of fraction digits used with this currency 509 */ 510 public int getDefaultFractionDigits() { 511 return defaultFractionDigits; 512 } 513 514 /** 515 * Returns the ISO 4217 numeric code of this currency. 516 * 517 * @return the ISO 4217 numeric code of this currency 518 * @since 1.7 519 */ 520 public int getNumericCode() { 521 return numericCode; 522 } 523 524 /** 525 * Gets the name that is suitable for displaying this currency for 526 * the default locale. If there is no suitable display name found 527 * for the default locale, the ISO 4217 currency code is returned. 528 * 529 * @return the display name of this currency for the default locale 530 * @since 1.7 531 */ 532 public String getDisplayName() { 533 return getDisplayName(Locale.getDefault(Locale.Category.DISPLAY)); 534 } 535 536 /** 537 * Gets the name that is suitable for displaying this currency for 538 * the specified locale. If there is no suitable display name found 539 * for the specified locale, the ISO 4217 currency code is returned. 540 * 541 * @param locale the locale for which a display name for this currency is 542 * needed 543 * @return the display name of this currency for the specified locale 544 * @exception NullPointerException if <code>locale</code> is null 545 * @since 1.7 546 */ 547 public String getDisplayName(Locale locale) { 548 try { 549 OpenListResourceBundle bundle = LocaleData.getCurrencyNames(locale); 550 String result = null; 551 String bundleKey = currencyCode.toLowerCase(Locale.ROOT); 552 553 // Check whether a provider can provide an implementation that's closer 554 // to the requested locale than what the Java runtime itself can provide. 555 LocaleServiceProviderPool pool = 556 LocaleServiceProviderPool.getPool(CurrencyNameProvider.class); 557 if (pool.hasProviders()) { 558 result = pool.getLocalizedObject( 559 CurrencyNameGetter.INSTANCE, 560 locale, bundleKey, bundle, currencyCode, DISPLAYNAME); 561 } 562 563 if (result == null) { 564 result = bundle.getString(bundleKey); 565 } 566 567 if (result != null) { 568 return result; 569 } 570 } catch (MissingResourceException e) { 571 // fall through 572 } 573 574 // use currency code as symbol of last resort 575 return currencyCode; 576 } 577 578 /** 579 * Returns the ISO 4217 currency code of this currency. 580 * 581 * @return the ISO 4217 currency code of this currency 582 */ 583 public String toString() { 584 return currencyCode; 585 } 586 587 /** 588 * Resolves instances being deserialized to a single instance per currency. 589 */ 590 private Object readResolve() { 591 return getInstance(currencyCode); 592 } 593 594 /** 595 * Gets the main table entry for the country whose country code consists 596 * of char1 and char2. 597 */ 598 private static int getMainTableEntry(char char1, char char2) { 599 if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') { 600 throw new IllegalArgumentException(); 601 } 602 return mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')]; 603 } 604 605 /** 606 * Sets the main table entry for the country whose country code consists 607 * of char1 and char2. 608 */ 609 private static void setMainTableEntry(char char1, char char2, int entry) { 610 if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') { 611 throw new IllegalArgumentException(); 612 } 613 mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')] = entry; 614 } 615 616 /** 617 * Obtains a localized currency names from a CurrencyNameProvider 618 * implementation. 619 */ 620 private static class CurrencyNameGetter 621 implements LocaleServiceProviderPool.LocalizedObjectGetter<CurrencyNameProvider, 622 String> { 623 private static final CurrencyNameGetter INSTANCE = new CurrencyNameGetter(); 624 625 public String getObject(CurrencyNameProvider currencyNameProvider, 626 Locale locale, 627 String key, 628 Object... params) { 629 assert params.length == 1; 630 int type = (Integer)params[0]; 631 632 switch(type) { 633 case SYMBOL: 634 return currencyNameProvider.getSymbol(key, locale); 635 case DISPLAYNAME: 636 return currencyNameProvider.getDisplayName(key, locale); 637 default: 638 assert false; // shouldn't happen 639 } 640 641 return null; 642 } 643 } 644 645 private static int[] readIntArray(DataInputStream dis, int count) throws IOException { 646 int[] ret = new int[count]; 647 for (int i = 0; i < count; i++) { 648 ret[i] = dis.readInt(); 649 } 650 651 return ret; 652 } 653 654 private static long[] readLongArray(DataInputStream dis, int count) throws IOException { 655 long[] ret = new long[count]; 656 for (int i = 0; i < count; i++) { 657 ret[i] = dis.readLong(); 658 } 659 660 return ret; 661 } 662 663 private static String[] readStringArray(DataInputStream dis, int count) throws IOException { 664 String[] ret = new String[count]; 665 for (int i = 0; i < count; i++) { 666 ret[i] = dis.readUTF(); 667 } 668 669 return ret; 670 } 671 672 /** 673 * Replaces currency data found in the currencydata.properties file 674 * 675 * @param pattern regex pattern for the properties 676 * @param ctry country code 677 * @param data currency data. This is a comma separated string that 678 * consists of "three-letter alphabet code", "three-digit numeric code", 679 * and "one-digit (0,1,2, or 3) default fraction digit". 680 * For example, "JPZ,392,0". 681 * @throws 682 */ 683 private static void replaceCurrencyData(Pattern pattern, String ctry, String curdata) { 684 685 if (ctry.length() != 2) { 686 // ignore invalid country code 687 String message = new StringBuilder() 688 .append("The entry in currency.properties for ") 689 .append(ctry).append(" is ignored because of the invalid country code.") 690 .toString(); 691 info(message, null); 692 return; 693 } 694 695 Matcher m = pattern.matcher(curdata); 696 if (!m.find()) { 697 // format is not recognized. ignore the data 698 String message = new StringBuilder() 699 .append("The entry in currency.properties for ") 700 .append(ctry) 701 .append(" is ignored because the value format is not recognized.") 702 .toString(); 703 info(message, null); 704 return; 705 } 706 707 String code = m.group(1); 708 int numeric = Integer.parseInt(m.group(2)); 709 int fraction = Integer.parseInt(m.group(3)); 710 int entry = numeric << NUMERIC_CODE_SHIFT; 711 712 int index; 713 for (index = 0; index < scOldCurrencies.length; index++) { 714 if (scOldCurrencies[index].equals(code)) { 715 break; 716 } 717 } 718 719 if (index == scOldCurrencies.length) { 720 // simple case 721 entry |= (fraction << SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT) | 722 (code.charAt(2) - 'A'); 723 } else { 724 // special case 725 entry |= SPECIAL_CASE_COUNTRY_MASK | 726 (index + SPECIAL_CASE_COUNTRY_INDEX_DELTA); 727 } 728 setMainTableEntry(ctry.charAt(0), ctry.charAt(1), entry); 729 } 730 731 private static void info(String message, Throwable t) { 732 PlatformLogger logger = PlatformLogger.getLogger("java.util.Currency"); 733 if (logger.isLoggable(PlatformLogger.INFO)) { 734 if (t != null) { 735 logger.info(message, t); 736 } else { 737 logger.info(message); 738 } 739 } 740 } 741 }