Currency.java revision 983b2c6ff9ea6d35adf7ab6398dccf870b7e180a
1/* 2 * Copyright (c) 2000, 2011, 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 26package java.util; 27 28import java.io.BufferedInputStream; 29import java.io.DataInputStream; 30import java.io.File; 31import java.io.FileInputStream; 32import java.io.FileReader; 33import java.io.IOException; 34import java.io.Serializable; 35import java.security.AccessController; 36import java.security.PrivilegedAction; 37import java.util.logging.Level; 38import java.util.regex.Pattern; 39import java.util.regex.Matcher; 40import java.util.spi.CurrencyNameProvider; 41import java.util.spi.LocaleServiceProvider; 42import sun.util.LocaleServiceProviderPool; 43import sun.util.logging.PlatformLogger; 44import libcore.icu.ICU; 45import libcore.icu.LocaleData; 46 47import sun.util.resources.OpenListResourceBundle; 48 49 50/** 51 * Represents a currency. Currencies are identified by their ISO 4217 currency 52 * codes. Visit the <a href="http://www.iso.org/iso/en/prods-services/popstds/currencycodes.html"> 53 * ISO web site</a> for more information, including a table of 54 * currency codes. 55 * <p> 56 * The class is designed so that there's never more than one 57 * <code>Currency</code> instance for any given currency. Therefore, there's 58 * no public constructor. You obtain a <code>Currency</code> instance using 59 * the <code>getInstance</code> methods. 60 * <p> 61 * Users can supersede the Java runtime currency data by creating a properties 62 * file named <code><JAVA_HOME>/lib/currency.properties</code>. The contents 63 * of the properties file are key/value pairs of the ISO 3166 country codes 64 * and the ISO 4217 currency data respectively. The value part consists of 65 * three ISO 4217 values of a currency, i.e., an alphabetic code, a numeric 66 * code, and a minor unit. Those three ISO 4217 values are separated by commas. 67 * The lines which start with '#'s are considered comment lines. For example, 68 * <p> 69 * <code> 70 * #Sample currency properties<br> 71 * JP=JPZ,999,0 72 * </code> 73 * <p> 74 * will supersede the currency data for Japan. 75 * 76 * @since 1.4 77 */ 78public final class Currency implements Serializable { 79 80 private static final long serialVersionUID = -158308464356906721L; 81 82 /** 83 * ISO 4217 currency code for this currency. 84 * 85 * @serial 86 */ 87 private final String currencyCode; 88 89 /** 90 * Default fraction digits for this currency. 91 * Set from currency data tables. 92 */ 93 transient private final int defaultFractionDigits; 94 95 /** 96 * ISO 4217 numeric code for this currency. 97 * Set from currency data tables. 98 */ 99 transient private final int numericCode; 100 101 102 // class data: instance map 103 104 private static HashMap<String, Currency> instances = new HashMap<String, Currency>(7); 105 private static HashSet<Currency> available; 106 107 108 // Class data: currency data obtained from currency.data file. 109 // Purpose: 110 // - determine valid country codes 111 // - determine valid currency codes 112 // - map country codes to currency codes 113 // - obtain default fraction digits for currency codes 114 // 115 // sc = special case; dfd = default fraction digits 116 // Simple countries are those where the country code is a prefix of the 117 // currency code, and there are no known plans to change the currency. 118 // 119 // table formats: 120 // - mainTable: 121 // - maps country code to 32-bit int 122 // - 26*26 entries, corresponding to [A-Z]*[A-Z] 123 // - \u007F -> not valid country 124 // - bits 18-31: unused 125 // - bits 8-17: numeric code (0 to 1023) 126 // - bit 7: 1 - special case, bits 0-4 indicate which one 127 // 0 - simple country, bits 0-4 indicate final char of currency code 128 // - bits 5-6: fraction digits for simple countries, 0 for special cases 129 // - bits 0-4: final char for currency code for simple country, or ID of special case 130 // - special case IDs: 131 // - 0: country has no currency 132 // - other: index into sc* arrays + 1 133 // - scCutOverTimes: cut-over time in millis as returned by 134 // System.currentTimeMillis for special case countries that are changing 135 // currencies; Long.MAX_VALUE for countries that are not changing currencies 136 // - scOldCurrencies: old currencies for special case countries 137 // - scNewCurrencies: new currencies for special case countries that are 138 // changing currencies; null for others 139 // - scOldCurrenciesDFD: default fraction digits for old currencies 140 // - scNewCurrenciesDFD: default fraction digits for new currencies, 0 for 141 // countries that are not changing currencies 142 // - otherCurrencies: concatenation of all currency codes that are not the 143 // main currency of a simple country, separated by "-" 144 // - otherCurrenciesDFD: decimal format digits for currencies in otherCurrencies, same order 145 146 static int formatVersion; 147 static int dataVersion; 148 static int[] mainTable; 149 static long[] scCutOverTimes; 150 static String[] scOldCurrencies; 151 static String[] scNewCurrencies; 152 static int[] scOldCurrenciesDFD; 153 static int[] scNewCurrenciesDFD; 154 static int[] scOldCurrenciesNumericCode; 155 static int[] scNewCurrenciesNumericCode; 156 static String otherCurrencies; 157 static int[] otherCurrenciesDFD; 158 static int[] otherCurrenciesNumericCode; 159 160 // handy constants - must match definitions in GenerateCurrencyData 161 // magic number 162 private static final int MAGIC_NUMBER = 0x43757244; 163 // number of characters from A to Z 164 private static final int A_TO_Z = ('Z' - 'A') + 1; 165 // entry for invalid country codes 166 private static final int INVALID_COUNTRY_ENTRY = 0x007F; 167 // entry for countries without currency 168 private static final int COUNTRY_WITHOUT_CURRENCY_ENTRY = 0x0080; 169 // mask for simple case country entries 170 private static final int SIMPLE_CASE_COUNTRY_MASK = 0x0000; 171 // mask for simple case country entry final character 172 private static final int SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK = 0x001F; 173 // mask for simple case country entry default currency digits 174 private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK = 0x0060; 175 // shift count for simple case country entry default currency digits 176 private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT = 5; 177 // mask for special case country entries 178 private static final int SPECIAL_CASE_COUNTRY_MASK = 0x0080; 179 // mask for special case country index 180 private static final int SPECIAL_CASE_COUNTRY_INDEX_MASK = 0x001F; 181 // delta from entry index component in main table to index into special case tables 182 private static final int SPECIAL_CASE_COUNTRY_INDEX_DELTA = 1; 183 // mask for distinguishing simple and special case countries 184 private static final int COUNTRY_TYPE_MASK = SIMPLE_CASE_COUNTRY_MASK | SPECIAL_CASE_COUNTRY_MASK; 185 // mask for the numeric code of the currency 186 private static final int NUMERIC_CODE_MASK = 0x0003FF00; 187 // shift count for the numeric code of the currency 188 private static final int NUMERIC_CODE_SHIFT = 8; 189 190 // Currency data format version 191 private static final int VALID_FORMAT_VERSION = 1; 192 193 static { 194 AccessController.doPrivileged(new PrivilegedAction<Object>() { 195 public Object run() { 196 String homeDir = System.getProperty("java.home"); 197 try { 198 // Android-changed: Look for the data file in /usr/share/.. 199 String dataFile = homeDir + File.separator + "usr" + File.separator + "share" + 200 File.separator + "currency.data"; 201 DataInputStream dis = new DataInputStream( 202 new BufferedInputStream( 203 new FileInputStream(dataFile))); 204 if (dis.readInt() != MAGIC_NUMBER) { 205 throw new InternalError("Currency data is possibly corrupted"); 206 } 207 formatVersion = dis.readInt(); 208 if (formatVersion != VALID_FORMAT_VERSION) { 209 throw new InternalError("Currency data format is incorrect"); 210 } 211 dataVersion = dis.readInt(); 212 mainTable = readIntArray(dis, A_TO_Z * A_TO_Z); 213 int scCount = dis.readInt(); 214 scCutOverTimes = readLongArray(dis, scCount); 215 scOldCurrencies = readStringArray(dis, scCount); 216 scNewCurrencies = readStringArray(dis, scCount); 217 scOldCurrenciesDFD = readIntArray(dis, scCount); 218 scNewCurrenciesDFD = readIntArray(dis, scCount); 219 scOldCurrenciesNumericCode = readIntArray(dis, scCount); 220 scNewCurrenciesNumericCode = readIntArray(dis, scCount); 221 int ocCount = dis.readInt(); 222 otherCurrencies = dis.readUTF(); 223 otherCurrenciesDFD = readIntArray(dis, ocCount); 224 otherCurrenciesNumericCode = readIntArray(dis, ocCount); 225 dis.close(); 226 } catch (IOException e) { 227 InternalError ie = new InternalError(); 228 ie.initCause(e); 229 throw ie; 230 } 231 232 // look for the properties file for overrides 233 try { 234 File propFile = new File(homeDir + File.separator + 235 "lib" + File.separator + 236 "currency.properties"); 237 if (propFile.exists()) { 238 Properties props = new Properties(); 239 try (FileReader fr = new FileReader(propFile)) { 240 props.load(fr); 241 } 242 Set<String> keys = props.stringPropertyNames(); 243 Pattern propertiesPattern = 244 Pattern.compile("([A-Z]{3})\\s*,\\s*(\\d{3})\\s*,\\s*([0-3])"); 245 for (String key : keys) { 246 replaceCurrencyData(propertiesPattern, 247 key.toUpperCase(Locale.ROOT), 248 props.getProperty(key).toUpperCase(Locale.ROOT)); 249 } 250 } 251 } catch (IOException e) { 252 info("currency.properties is ignored because of an IOException", e); 253 } 254 return null; 255 } 256 }); 257 } 258 259 /** 260 * Constants for retrieving localized names from the name providers. 261 */ 262 private static final int SYMBOL = 0; 263 private static final int DISPLAYNAME = 1; 264 265 266 /** 267 * Constructs a <code>Currency</code> instance. The constructor is private 268 * so that we can insure that there's never more than one instance for a 269 * given currency. 270 */ 271 private Currency(String currencyCode, int defaultFractionDigits, int numericCode) { 272 this.currencyCode = currencyCode; 273 this.defaultFractionDigits = defaultFractionDigits; 274 this.numericCode = numericCode; 275 } 276 277 /** 278 * Returns the <code>Currency</code> instance for the given currency code. 279 * 280 * @param currencyCode the ISO 4217 code of the currency 281 * @return the <code>Currency</code> instance for the given currency code 282 * @exception NullPointerException if <code>currencyCode</code> is null 283 * @exception IllegalArgumentException if <code>currencyCode</code> is not 284 * a supported ISO 4217 code. 285 */ 286 public static Currency getInstance(String currencyCode) { 287 return getInstance(currencyCode, Integer.MIN_VALUE, 0); 288 } 289 290 private static Currency getInstance(String currencyCode, int defaultFractionDigits, 291 int numericCode) { 292 synchronized (instances) { 293 // Try to look up the currency code in the instances table. 294 // This does the null pointer check as a side effect. 295 // Also, if there already is an entry, the currencyCode must be valid. 296 Currency instance = instances.get(currencyCode); 297 if (instance != null) { 298 return instance; 299 } 300 301 if (defaultFractionDigits == Integer.MIN_VALUE) { 302 // Currency code not internally generated, need to verify first 303 // A currency code must have 3 characters and exist in the main table 304 // or in the list of other currencies. 305 if (currencyCode.length() != 3) { 306 throw new IllegalArgumentException(); 307 } 308 char char1 = currencyCode.charAt(0); 309 char char2 = currencyCode.charAt(1); 310 int tableEntry = getMainTableEntry(char1, char2); 311 if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK 312 && tableEntry != INVALID_COUNTRY_ENTRY 313 && currencyCode.charAt(2) - 'A' == (tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK)) { 314 defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT; 315 numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT; 316 } else { 317 // Check for '-' separately so we don't get false hits in the table. 318 if (currencyCode.charAt(2) == '-') { 319 throw new IllegalArgumentException(); 320 } 321 int index = otherCurrencies.indexOf(currencyCode); 322 if (index == -1) { 323 throw new IllegalArgumentException(); 324 } 325 defaultFractionDigits = otherCurrenciesDFD[index / 4]; 326 numericCode = otherCurrenciesNumericCode[index / 4]; 327 } 328 } 329 330 instance = new Currency(currencyCode, defaultFractionDigits, numericCode); 331 instances.put(currencyCode, instance); 332 return instance; 333 } 334 } 335 336 /** 337 * Returns the <code>Currency</code> instance for the country of the 338 * given locale. The language and variant components of the locale 339 * are ignored. The result may vary over time, as countries change their 340 * currencies. For example, for the original member countries of the 341 * European Monetary Union, the method returns the old national currencies 342 * until December 31, 2001, and the Euro from January 1, 2002, local time 343 * of the respective countries. 344 * <p> 345 * The method returns <code>null</code> for territories that don't 346 * have a currency, such as Antarctica. 347 * 348 * @param locale the locale for whose country a <code>Currency</code> 349 * instance is needed 350 * @return the <code>Currency</code> instance for the country of the given 351 * locale, or null 352 * @exception NullPointerException if <code>locale</code> or its country 353 * code is null 354 * @exception IllegalArgumentException if the country of the given locale 355 * is not a supported ISO 3166 country code. 356 */ 357 public static Currency getInstance(Locale locale) { 358 String country = locale.getCountry(); 359 if (country == null) { 360 throw new NullPointerException(); 361 } 362 363 if (country.length() != 2) { 364 throw new IllegalArgumentException(); 365 } 366 367 char char1 = country.charAt(0); 368 char char2 = country.charAt(1); 369 int tableEntry = getMainTableEntry(char1, char2); 370 if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK 371 && tableEntry != INVALID_COUNTRY_ENTRY) { 372 char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A'); 373 int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT; 374 int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT; 375 StringBuffer sb = new StringBuffer(country); 376 sb.append(finalChar); 377 return getInstance(sb.toString(), defaultFractionDigits, numericCode); 378 } else { 379 // special cases 380 if (tableEntry == INVALID_COUNTRY_ENTRY) { 381 throw new IllegalArgumentException(); 382 } 383 if (tableEntry == COUNTRY_WITHOUT_CURRENCY_ENTRY) { 384 return null; 385 } else { 386 int index = (tableEntry & SPECIAL_CASE_COUNTRY_INDEX_MASK) - SPECIAL_CASE_COUNTRY_INDEX_DELTA; 387 if (scCutOverTimes[index] == Long.MAX_VALUE || System.currentTimeMillis() < scCutOverTimes[index]) { 388 return getInstance(scOldCurrencies[index], scOldCurrenciesDFD[index], 389 scOldCurrenciesNumericCode[index]); 390 } else { 391 return getInstance(scNewCurrencies[index], scNewCurrenciesDFD[index], 392 scNewCurrenciesNumericCode[index]); 393 } 394 } 395 } 396 } 397 398 /** 399 * Gets the set of available currencies. The returned set of currencies 400 * contains all of the available currencies, which may include currencies 401 * that represent obsolete ISO 4217 codes. The set can be modified 402 * without affecting the available currencies in the runtime. 403 * 404 * @return the set of available currencies. If there is no currency 405 * available in the runtime, the returned set is empty. 406 * @since 1.7 407 */ 408 public static Set<Currency> getAvailableCurrencies() { 409 synchronized(Currency.class) { 410 if (available == null) { 411 available = new HashSet<Currency>(256); 412 413 // Add simple currencies first 414 for (char c1 = 'A'; c1 <= 'Z'; c1 ++) { 415 for (char c2 = 'A'; c2 <= 'Z'; c2 ++) { 416 int tableEntry = getMainTableEntry(c1, c2); 417 if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK 418 && tableEntry != INVALID_COUNTRY_ENTRY) { 419 char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A'); 420 int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT; 421 int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT; 422 StringBuilder sb = new StringBuilder(); 423 sb.append(c1); 424 sb.append(c2); 425 sb.append(finalChar); 426 available.add(getInstance(sb.toString(), defaultFractionDigits, numericCode)); 427 } 428 } 429 } 430 431 // Now add other currencies 432 StringTokenizer st = new StringTokenizer(otherCurrencies, "-"); 433 while (st.hasMoreElements()) { 434 available.add(getInstance((String)st.nextElement())); 435 } 436 } 437 } 438 439 @SuppressWarnings("unchecked") 440 Set<Currency> result = (Set<Currency>) available.clone(); 441 return result; 442 } 443 444 /** 445 * Gets the ISO 4217 currency code of this currency. 446 * 447 * @return the ISO 4217 currency code of this currency. 448 */ 449 public String getCurrencyCode() { 450 return currencyCode; 451 } 452 453 /** 454 * Gets the symbol of this currency for the default locale. 455 * For example, for the US Dollar, the symbol is "$" if the default 456 * locale is the US, while for other locales it may be "US$". If no 457 * symbol can be determined, the ISO 4217 currency code is returned. 458 * 459 * @return the symbol of this currency for the default locale 460 */ 461 public String getSymbol() { 462 return getSymbol(Locale.getDefault(Locale.Category.DISPLAY)); 463 } 464 465 /** 466 * Gets the symbol of this currency for the specified locale. 467 * For example, for the US Dollar, the symbol is "$" if the specified 468 * locale is the US, while for other locales it may be "US$". If no 469 * symbol can be determined, the ISO 4217 currency code is returned. 470 * 471 * @param locale the locale for which a display name for this currency is 472 * needed 473 * @return the symbol of this currency for the specified locale 474 * @exception NullPointerException if <code>locale</code> is null 475 */ 476 public String getSymbol(Locale locale) { 477 // Android-changed: Use ICU4C for currency lookups 478 // 479 // Check the locale first, in case the locale has the same currency. 480 LocaleData localeData = LocaleData.get(locale); 481 if (localeData.internationalCurrencySymbol.equals(currencyCode)) { 482 return localeData.currencySymbol; 483 } 484 485 // Try ICU, and fall back to the currency code if ICU has nothing. 486 String symbol = ICU.getCurrencySymbol(locale, currencyCode); 487 return symbol != null ? symbol : currencyCode; 488 } 489 490 /** 491 * Gets the default number of fraction digits used with this currency. 492 * For example, the default number of fraction digits for the Euro is 2, 493 * while for the Japanese Yen it's 0. 494 * In the case of pseudo-currencies, such as IMF Special Drawing Rights, 495 * -1 is returned. 496 * 497 * @return the default number of fraction digits used with this currency 498 */ 499 public int getDefaultFractionDigits() { 500 return defaultFractionDigits; 501 } 502 503 /** 504 * Returns the ISO 4217 numeric code of this currency. 505 * 506 * @return the ISO 4217 numeric code of this currency 507 * @since 1.7 508 */ 509 public int getNumericCode() { 510 return numericCode; 511 } 512 513 /** 514 * Gets the name that is suitable for displaying this currency for 515 * the default locale. If there is no suitable display name found 516 * for the default locale, the ISO 4217 currency code is returned. 517 * 518 * @return the display name of this currency for the default locale 519 * @since 1.7 520 */ 521 public String getDisplayName() { 522 return getDisplayName(Locale.getDefault(Locale.Category.DISPLAY)); 523 } 524 525 /** 526 * Gets the name that is suitable for displaying this currency for 527 * the specified locale. If there is no suitable display name found 528 * for the specified locale, the ISO 4217 currency code is returned. 529 * 530 * @param locale the locale for which a display name for this currency is 531 * needed 532 * @return the display name of this currency for the specified locale 533 * @exception NullPointerException if <code>locale</code> is null 534 * @since 1.7 535 */ 536 public String getDisplayName(Locale locale) { 537 // Android-changed: Use ICU4C to look up the currency display name. 538 return ICU.getCurrencyDisplayName(locale, currencyCode); 539 } 540 541 /** 542 * Returns the ISO 4217 currency code of this currency. 543 * 544 * @return the ISO 4217 currency code of this currency 545 */ 546 public String toString() { 547 return currencyCode; 548 } 549 550 /** 551 * Resolves instances being deserialized to a single instance per currency. 552 */ 553 private Object readResolve() { 554 return getInstance(currencyCode); 555 } 556 557 /** 558 * Gets the main table entry for the country whose country code consists 559 * of char1 and char2. 560 */ 561 private static int getMainTableEntry(char char1, char char2) { 562 if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') { 563 throw new IllegalArgumentException(); 564 } 565 return mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')]; 566 } 567 568 /** 569 * Sets the main table entry for the country whose country code consists 570 * of char1 and char2. 571 */ 572 private static void setMainTableEntry(char char1, char char2, int entry) { 573 if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') { 574 throw new IllegalArgumentException(); 575 } 576 mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')] = entry; 577 } 578 579 /** 580 * Obtains a localized currency names from a CurrencyNameProvider 581 * implementation. 582 */ 583 private static class CurrencyNameGetter 584 implements LocaleServiceProviderPool.LocalizedObjectGetter<CurrencyNameProvider, 585 String> { 586 private static final CurrencyNameGetter INSTANCE = new CurrencyNameGetter(); 587 588 public String getObject(CurrencyNameProvider currencyNameProvider, 589 Locale locale, 590 String key, 591 Object... params) { 592 assert params.length == 1; 593 int type = (Integer)params[0]; 594 595 switch(type) { 596 case SYMBOL: 597 return currencyNameProvider.getSymbol(key, locale); 598 case DISPLAYNAME: 599 return currencyNameProvider.getDisplayName(key, locale); 600 default: 601 assert false; // shouldn't happen 602 } 603 604 return null; 605 } 606 } 607 608 private static int[] readIntArray(DataInputStream dis, int count) throws IOException { 609 int[] ret = new int[count]; 610 for (int i = 0; i < count; i++) { 611 ret[i] = dis.readInt(); 612 } 613 614 return ret; 615 } 616 617 private static long[] readLongArray(DataInputStream dis, int count) throws IOException { 618 long[] ret = new long[count]; 619 for (int i = 0; i < count; i++) { 620 ret[i] = dis.readLong(); 621 } 622 623 return ret; 624 } 625 626 private static String[] readStringArray(DataInputStream dis, int count) throws IOException { 627 String[] ret = new String[count]; 628 for (int i = 0; i < count; i++) { 629 ret[i] = dis.readUTF(); 630 } 631 632 return ret; 633 } 634 635 /** 636 * Replaces currency data found in the currencydata.properties file 637 * 638 * @param pattern regex pattern for the properties 639 * @param ctry country code 640 * @param data currency data. This is a comma separated string that 641 * consists of "three-letter alphabet code", "three-digit numeric code", 642 * and "one-digit (0,1,2, or 3) default fraction digit". 643 * For example, "JPZ,392,0". 644 * @throws 645 */ 646 private static void replaceCurrencyData(Pattern pattern, String ctry, String curdata) { 647 648 if (ctry.length() != 2) { 649 // ignore invalid country code 650 String message = new StringBuilder() 651 .append("The entry in currency.properties for ") 652 .append(ctry).append(" is ignored because of the invalid country code.") 653 .toString(); 654 info(message, null); 655 return; 656 } 657 658 Matcher m = pattern.matcher(curdata); 659 if (!m.find()) { 660 // format is not recognized. ignore the data 661 String message = new StringBuilder() 662 .append("The entry in currency.properties for ") 663 .append(ctry) 664 .append(" is ignored because the value format is not recognized.") 665 .toString(); 666 info(message, null); 667 return; 668 } 669 670 String code = m.group(1); 671 int numeric = Integer.parseInt(m.group(2)); 672 int fraction = Integer.parseInt(m.group(3)); 673 int entry = numeric << NUMERIC_CODE_SHIFT; 674 675 int index; 676 for (index = 0; index < scOldCurrencies.length; index++) { 677 if (scOldCurrencies[index].equals(code)) { 678 break; 679 } 680 } 681 682 if (index == scOldCurrencies.length) { 683 // simple case 684 entry |= (fraction << SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT) | 685 (code.charAt(2) - 'A'); 686 } else { 687 // special case 688 entry |= SPECIAL_CASE_COUNTRY_MASK | 689 (index + SPECIAL_CASE_COUNTRY_INDEX_DELTA); 690 } 691 setMainTableEntry(ctry.charAt(0), ctry.charAt(1), entry); 692 } 693 694 private static void info(String message, Throwable t) { 695 PlatformLogger logger = PlatformLogger.getLogger("java.util.Currency"); 696 if (logger.isLoggable(PlatformLogger.INFO)) { 697 if (t != null) { 698 logger.info(message, t); 699 } else { 700 logger.info(message); 701 } 702 } 703 } 704} 705