1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/emul/compact/src/main/java/java/util/Currency.java Thu Oct 03 15:40:35 2013 +0200
1.3 @@ -0,0 +1,741 @@
1.4 +/*
1.5 + * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package java.util;
1.30 +
1.31 +import java.io.BufferedInputStream;
1.32 +import java.io.DataInputStream;
1.33 +import java.io.File;
1.34 +import java.io.FileInputStream;
1.35 +import java.io.FileReader;
1.36 +import java.io.IOException;
1.37 +import java.io.Serializable;
1.38 +import java.security.AccessController;
1.39 +import java.security.PrivilegedAction;
1.40 +import java.util.logging.Level;
1.41 +import java.util.regex.Pattern;
1.42 +import java.util.regex.Matcher;
1.43 +import java.util.spi.CurrencyNameProvider;
1.44 +import java.util.spi.LocaleServiceProvider;
1.45 +import sun.util.LocaleServiceProviderPool;
1.46 +import sun.util.logging.PlatformLogger;
1.47 +import sun.util.resources.LocaleData;
1.48 +import sun.util.resources.OpenListResourceBundle;
1.49 +
1.50 +
1.51 +/**
1.52 + * Represents a currency. Currencies are identified by their ISO 4217 currency
1.53 + * codes. Visit the <a href="http://www.iso.org/iso/en/prods-services/popstds/currencycodes.html">
1.54 + * ISO web site</a> for more information, including a table of
1.55 + * currency codes.
1.56 + * <p>
1.57 + * The class is designed so that there's never more than one
1.58 + * <code>Currency</code> instance for any given currency. Therefore, there's
1.59 + * no public constructor. You obtain a <code>Currency</code> instance using
1.60 + * the <code>getInstance</code> methods.
1.61 + * <p>
1.62 + * Users can supersede the Java runtime currency data by creating a properties
1.63 + * file named <code><JAVA_HOME>/lib/currency.properties</code>. The contents
1.64 + * of the properties file are key/value pairs of the ISO 3166 country codes
1.65 + * and the ISO 4217 currency data respectively. The value part consists of
1.66 + * three ISO 4217 values of a currency, i.e., an alphabetic code, a numeric
1.67 + * code, and a minor unit. Those three ISO 4217 values are separated by commas.
1.68 + * The lines which start with '#'s are considered comment lines. For example,
1.69 + * <p>
1.70 + * <code>
1.71 + * #Sample currency properties<br>
1.72 + * JP=JPZ,999,0
1.73 + * </code>
1.74 + * <p>
1.75 + * will supersede the currency data for Japan.
1.76 + *
1.77 + * @since 1.4
1.78 + */
1.79 +public final class Currency implements Serializable {
1.80 +
1.81 + private static final long serialVersionUID = -158308464356906721L;
1.82 +
1.83 + /**
1.84 + * ISO 4217 currency code for this currency.
1.85 + *
1.86 + * @serial
1.87 + */
1.88 + private final String currencyCode;
1.89 +
1.90 + /**
1.91 + * Default fraction digits for this currency.
1.92 + * Set from currency data tables.
1.93 + */
1.94 + transient private final int defaultFractionDigits;
1.95 +
1.96 + /**
1.97 + * ISO 4217 numeric code for this currency.
1.98 + * Set from currency data tables.
1.99 + */
1.100 + transient private final int numericCode;
1.101 +
1.102 +
1.103 + // class data: instance map
1.104 +
1.105 + private static HashMap<String, Currency> instances = new HashMap<String, Currency>(7);
1.106 + private static HashSet<Currency> available;
1.107 +
1.108 +
1.109 + // Class data: currency data obtained from currency.data file.
1.110 + // Purpose:
1.111 + // - determine valid country codes
1.112 + // - determine valid currency codes
1.113 + // - map country codes to currency codes
1.114 + // - obtain default fraction digits for currency codes
1.115 + //
1.116 + // sc = special case; dfd = default fraction digits
1.117 + // Simple countries are those where the country code is a prefix of the
1.118 + // currency code, and there are no known plans to change the currency.
1.119 + //
1.120 + // table formats:
1.121 + // - mainTable:
1.122 + // - maps country code to 32-bit int
1.123 + // - 26*26 entries, corresponding to [A-Z]*[A-Z]
1.124 + // - \u007F -> not valid country
1.125 + // - bits 18-31: unused
1.126 + // - bits 8-17: numeric code (0 to 1023)
1.127 + // - bit 7: 1 - special case, bits 0-4 indicate which one
1.128 + // 0 - simple country, bits 0-4 indicate final char of currency code
1.129 + // - bits 5-6: fraction digits for simple countries, 0 for special cases
1.130 + // - bits 0-4: final char for currency code for simple country, or ID of special case
1.131 + // - special case IDs:
1.132 + // - 0: country has no currency
1.133 + // - other: index into sc* arrays + 1
1.134 + // - scCutOverTimes: cut-over time in millis as returned by
1.135 + // System.currentTimeMillis for special case countries that are changing
1.136 + // currencies; Long.MAX_VALUE for countries that are not changing currencies
1.137 + // - scOldCurrencies: old currencies for special case countries
1.138 + // - scNewCurrencies: new currencies for special case countries that are
1.139 + // changing currencies; null for others
1.140 + // - scOldCurrenciesDFD: default fraction digits for old currencies
1.141 + // - scNewCurrenciesDFD: default fraction digits for new currencies, 0 for
1.142 + // countries that are not changing currencies
1.143 + // - otherCurrencies: concatenation of all currency codes that are not the
1.144 + // main currency of a simple country, separated by "-"
1.145 + // - otherCurrenciesDFD: decimal format digits for currencies in otherCurrencies, same order
1.146 +
1.147 + static int formatVersion;
1.148 + static int dataVersion;
1.149 + static int[] mainTable;
1.150 + static long[] scCutOverTimes;
1.151 + static String[] scOldCurrencies;
1.152 + static String[] scNewCurrencies;
1.153 + static int[] scOldCurrenciesDFD;
1.154 + static int[] scNewCurrenciesDFD;
1.155 + static int[] scOldCurrenciesNumericCode;
1.156 + static int[] scNewCurrenciesNumericCode;
1.157 + static String otherCurrencies;
1.158 + static int[] otherCurrenciesDFD;
1.159 + static int[] otherCurrenciesNumericCode;
1.160 +
1.161 + // handy constants - must match definitions in GenerateCurrencyData
1.162 + // magic number
1.163 + private static final int MAGIC_NUMBER = 0x43757244;
1.164 + // number of characters from A to Z
1.165 + private static final int A_TO_Z = ('Z' - 'A') + 1;
1.166 + // entry for invalid country codes
1.167 + private static final int INVALID_COUNTRY_ENTRY = 0x007F;
1.168 + // entry for countries without currency
1.169 + private static final int COUNTRY_WITHOUT_CURRENCY_ENTRY = 0x0080;
1.170 + // mask for simple case country entries
1.171 + private static final int SIMPLE_CASE_COUNTRY_MASK = 0x0000;
1.172 + // mask for simple case country entry final character
1.173 + private static final int SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK = 0x001F;
1.174 + // mask for simple case country entry default currency digits
1.175 + private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK = 0x0060;
1.176 + // shift count for simple case country entry default currency digits
1.177 + private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT = 5;
1.178 + // mask for special case country entries
1.179 + private static final int SPECIAL_CASE_COUNTRY_MASK = 0x0080;
1.180 + // mask for special case country index
1.181 + private static final int SPECIAL_CASE_COUNTRY_INDEX_MASK = 0x001F;
1.182 + // delta from entry index component in main table to index into special case tables
1.183 + private static final int SPECIAL_CASE_COUNTRY_INDEX_DELTA = 1;
1.184 + // mask for distinguishing simple and special case countries
1.185 + private static final int COUNTRY_TYPE_MASK = SIMPLE_CASE_COUNTRY_MASK | SPECIAL_CASE_COUNTRY_MASK;
1.186 + // mask for the numeric code of the currency
1.187 + private static final int NUMERIC_CODE_MASK = 0x0003FF00;
1.188 + // shift count for the numeric code of the currency
1.189 + private static final int NUMERIC_CODE_SHIFT = 8;
1.190 +
1.191 + // Currency data format version
1.192 + private static final int VALID_FORMAT_VERSION = 1;
1.193 +
1.194 + static {
1.195 + AccessController.doPrivileged(new PrivilegedAction() {
1.196 + public Object run() {
1.197 + String homeDir = System.getProperty("java.home");
1.198 + try {
1.199 + String dataFile = homeDir + File.separator +
1.200 + "lib" + File.separator + "currency.data";
1.201 + DataInputStream dis = new DataInputStream(
1.202 + new BufferedInputStream(
1.203 + new FileInputStream(dataFile)));
1.204 + if (dis.readInt() != MAGIC_NUMBER) {
1.205 + throw new InternalError("Currency data is possibly corrupted");
1.206 + }
1.207 + formatVersion = dis.readInt();
1.208 + if (formatVersion != VALID_FORMAT_VERSION) {
1.209 + throw new InternalError("Currency data format is incorrect");
1.210 + }
1.211 + dataVersion = dis.readInt();
1.212 + mainTable = readIntArray(dis, A_TO_Z * A_TO_Z);
1.213 + int scCount = dis.readInt();
1.214 + scCutOverTimes = readLongArray(dis, scCount);
1.215 + scOldCurrencies = readStringArray(dis, scCount);
1.216 + scNewCurrencies = readStringArray(dis, scCount);
1.217 + scOldCurrenciesDFD = readIntArray(dis, scCount);
1.218 + scNewCurrenciesDFD = readIntArray(dis, scCount);
1.219 + scOldCurrenciesNumericCode = readIntArray(dis, scCount);
1.220 + scNewCurrenciesNumericCode = readIntArray(dis, scCount);
1.221 + int ocCount = dis.readInt();
1.222 + otherCurrencies = dis.readUTF();
1.223 + otherCurrenciesDFD = readIntArray(dis, ocCount);
1.224 + otherCurrenciesNumericCode = readIntArray(dis, ocCount);
1.225 + dis.close();
1.226 + } catch (IOException e) {
1.227 + InternalError ie = new InternalError();
1.228 + ie.initCause(e);
1.229 + throw ie;
1.230 + }
1.231 +
1.232 + // look for the properties file for overrides
1.233 + try {
1.234 + File propFile = new File(homeDir + File.separator +
1.235 + "lib" + File.separator +
1.236 + "currency.properties");
1.237 + if (propFile.exists()) {
1.238 + Properties props = new Properties();
1.239 + try (FileReader fr = new FileReader(propFile)) {
1.240 + props.load(fr);
1.241 + }
1.242 + Set<String> keys = props.stringPropertyNames();
1.243 + Pattern propertiesPattern =
1.244 + Pattern.compile("([A-Z]{3})\\s*,\\s*(\\d{3})\\s*,\\s*([0-3])");
1.245 + for (String key : keys) {
1.246 + replaceCurrencyData(propertiesPattern,
1.247 + key.toUpperCase(Locale.ROOT),
1.248 + props.getProperty(key).toUpperCase(Locale.ROOT));
1.249 + }
1.250 + }
1.251 + } catch (IOException e) {
1.252 + info("currency.properties is ignored because of an IOException", e);
1.253 + }
1.254 + return null;
1.255 + }
1.256 + });
1.257 + }
1.258 +
1.259 + /**
1.260 + * Constants for retrieving localized names from the name providers.
1.261 + */
1.262 + private static final int SYMBOL = 0;
1.263 + private static final int DISPLAYNAME = 1;
1.264 +
1.265 +
1.266 + /**
1.267 + * Constructs a <code>Currency</code> instance. The constructor is private
1.268 + * so that we can insure that there's never more than one instance for a
1.269 + * given currency.
1.270 + */
1.271 + private Currency(String currencyCode, int defaultFractionDigits, int numericCode) {
1.272 + this.currencyCode = currencyCode;
1.273 + this.defaultFractionDigits = defaultFractionDigits;
1.274 + this.numericCode = numericCode;
1.275 + }
1.276 +
1.277 + /**
1.278 + * Returns the <code>Currency</code> instance for the given currency code.
1.279 + *
1.280 + * @param currencyCode the ISO 4217 code of the currency
1.281 + * @return the <code>Currency</code> instance for the given currency code
1.282 + * @exception NullPointerException if <code>currencyCode</code> is null
1.283 + * @exception IllegalArgumentException if <code>currencyCode</code> is not
1.284 + * a supported ISO 4217 code.
1.285 + */
1.286 + public static Currency getInstance(String currencyCode) {
1.287 + return getInstance(currencyCode, Integer.MIN_VALUE, 0);
1.288 + }
1.289 +
1.290 + private static Currency getInstance(String currencyCode, int defaultFractionDigits,
1.291 + int numericCode) {
1.292 + synchronized (instances) {
1.293 + // Try to look up the currency code in the instances table.
1.294 + // This does the null pointer check as a side effect.
1.295 + // Also, if there already is an entry, the currencyCode must be valid.
1.296 + Currency instance = instances.get(currencyCode);
1.297 + if (instance != null) {
1.298 + return instance;
1.299 + }
1.300 +
1.301 + if (defaultFractionDigits == Integer.MIN_VALUE) {
1.302 + // Currency code not internally generated, need to verify first
1.303 + // A currency code must have 3 characters and exist in the main table
1.304 + // or in the list of other currencies.
1.305 + if (currencyCode.length() != 3) {
1.306 + throw new IllegalArgumentException();
1.307 + }
1.308 + char char1 = currencyCode.charAt(0);
1.309 + char char2 = currencyCode.charAt(1);
1.310 + int tableEntry = getMainTableEntry(char1, char2);
1.311 + if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
1.312 + && tableEntry != INVALID_COUNTRY_ENTRY
1.313 + && currencyCode.charAt(2) - 'A' == (tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK)) {
1.314 + defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
1.315 + numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
1.316 + } else {
1.317 + // Check for '-' separately so we don't get false hits in the table.
1.318 + if (currencyCode.charAt(2) == '-') {
1.319 + throw new IllegalArgumentException();
1.320 + }
1.321 + int index = otherCurrencies.indexOf(currencyCode);
1.322 + if (index == -1) {
1.323 + throw new IllegalArgumentException();
1.324 + }
1.325 + defaultFractionDigits = otherCurrenciesDFD[index / 4];
1.326 + numericCode = otherCurrenciesNumericCode[index / 4];
1.327 + }
1.328 + }
1.329 +
1.330 + instance = new Currency(currencyCode, defaultFractionDigits, numericCode);
1.331 + instances.put(currencyCode, instance);
1.332 + return instance;
1.333 + }
1.334 + }
1.335 +
1.336 + /**
1.337 + * Returns the <code>Currency</code> instance for the country of the
1.338 + * given locale. The language and variant components of the locale
1.339 + * are ignored. The result may vary over time, as countries change their
1.340 + * currencies. For example, for the original member countries of the
1.341 + * European Monetary Union, the method returns the old national currencies
1.342 + * until December 31, 2001, and the Euro from January 1, 2002, local time
1.343 + * of the respective countries.
1.344 + * <p>
1.345 + * The method returns <code>null</code> for territories that don't
1.346 + * have a currency, such as Antarctica.
1.347 + *
1.348 + * @param locale the locale for whose country a <code>Currency</code>
1.349 + * instance is needed
1.350 + * @return the <code>Currency</code> instance for the country of the given
1.351 + * locale, or null
1.352 + * @exception NullPointerException if <code>locale</code> or its country
1.353 + * code is null
1.354 + * @exception IllegalArgumentException if the country of the given locale
1.355 + * is not a supported ISO 3166 country code.
1.356 + */
1.357 + public static Currency getInstance(Locale locale) {
1.358 + String country = locale.getCountry();
1.359 + if (country == null) {
1.360 + throw new NullPointerException();
1.361 + }
1.362 +
1.363 + if (country.length() != 2) {
1.364 + throw new IllegalArgumentException();
1.365 + }
1.366 +
1.367 + char char1 = country.charAt(0);
1.368 + char char2 = country.charAt(1);
1.369 + int tableEntry = getMainTableEntry(char1, char2);
1.370 + if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
1.371 + && tableEntry != INVALID_COUNTRY_ENTRY) {
1.372 + char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A');
1.373 + int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
1.374 + int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
1.375 + StringBuffer sb = new StringBuffer(country);
1.376 + sb.append(finalChar);
1.377 + return getInstance(sb.toString(), defaultFractionDigits, numericCode);
1.378 + } else {
1.379 + // special cases
1.380 + if (tableEntry == INVALID_COUNTRY_ENTRY) {
1.381 + throw new IllegalArgumentException();
1.382 + }
1.383 + if (tableEntry == COUNTRY_WITHOUT_CURRENCY_ENTRY) {
1.384 + return null;
1.385 + } else {
1.386 + int index = (tableEntry & SPECIAL_CASE_COUNTRY_INDEX_MASK) - SPECIAL_CASE_COUNTRY_INDEX_DELTA;
1.387 + if (scCutOverTimes[index] == Long.MAX_VALUE || System.currentTimeMillis() < scCutOverTimes[index]) {
1.388 + return getInstance(scOldCurrencies[index], scOldCurrenciesDFD[index],
1.389 + scOldCurrenciesNumericCode[index]);
1.390 + } else {
1.391 + return getInstance(scNewCurrencies[index], scNewCurrenciesDFD[index],
1.392 + scNewCurrenciesNumericCode[index]);
1.393 + }
1.394 + }
1.395 + }
1.396 + }
1.397 +
1.398 + /**
1.399 + * Gets the set of available currencies. The returned set of currencies
1.400 + * contains all of the available currencies, which may include currencies
1.401 + * that represent obsolete ISO 4217 codes. The set can be modified
1.402 + * without affecting the available currencies in the runtime.
1.403 + *
1.404 + * @return the set of available currencies. If there is no currency
1.405 + * available in the runtime, the returned set is empty.
1.406 + * @since 1.7
1.407 + */
1.408 + public static Set<Currency> getAvailableCurrencies() {
1.409 + synchronized(Currency.class) {
1.410 + if (available == null) {
1.411 + available = new HashSet<Currency>(256);
1.412 +
1.413 + // Add simple currencies first
1.414 + for (char c1 = 'A'; c1 <= 'Z'; c1 ++) {
1.415 + for (char c2 = 'A'; c2 <= 'Z'; c2 ++) {
1.416 + int tableEntry = getMainTableEntry(c1, c2);
1.417 + if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
1.418 + && tableEntry != INVALID_COUNTRY_ENTRY) {
1.419 + char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A');
1.420 + int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
1.421 + int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
1.422 + StringBuilder sb = new StringBuilder();
1.423 + sb.append(c1);
1.424 + sb.append(c2);
1.425 + sb.append(finalChar);
1.426 + available.add(getInstance(sb.toString(), defaultFractionDigits, numericCode));
1.427 + }
1.428 + }
1.429 + }
1.430 +
1.431 + // Now add other currencies
1.432 + StringTokenizer st = new StringTokenizer(otherCurrencies, "-");
1.433 + while (st.hasMoreElements()) {
1.434 + available.add(getInstance((String)st.nextElement()));
1.435 + }
1.436 + }
1.437 + }
1.438 +
1.439 + return (Set<Currency>) available.clone();
1.440 + }
1.441 +
1.442 + /**
1.443 + * Gets the ISO 4217 currency code of this currency.
1.444 + *
1.445 + * @return the ISO 4217 currency code of this currency.
1.446 + */
1.447 + public String getCurrencyCode() {
1.448 + return currencyCode;
1.449 + }
1.450 +
1.451 + /**
1.452 + * Gets the symbol of this currency for the default locale.
1.453 + * For example, for the US Dollar, the symbol is "$" if the default
1.454 + * locale is the US, while for other locales it may be "US$". If no
1.455 + * symbol can be determined, the ISO 4217 currency code is returned.
1.456 + *
1.457 + * @return the symbol of this currency for the default locale
1.458 + */
1.459 + public String getSymbol() {
1.460 + return getSymbol(Locale.getDefault(Locale.Category.DISPLAY));
1.461 + }
1.462 +
1.463 + /**
1.464 + * Gets the symbol of this currency for the specified locale.
1.465 + * For example, for the US Dollar, the symbol is "$" if the specified
1.466 + * locale is the US, while for other locales it may be "US$". If no
1.467 + * symbol can be determined, the ISO 4217 currency code is returned.
1.468 + *
1.469 + * @param locale the locale for which a display name for this currency is
1.470 + * needed
1.471 + * @return the symbol of this currency for the specified locale
1.472 + * @exception NullPointerException if <code>locale</code> is null
1.473 + */
1.474 + public String getSymbol(Locale locale) {
1.475 + try {
1.476 + // Check whether a provider can provide an implementation that's closer
1.477 + // to the requested locale than what the Java runtime itself can provide.
1.478 + LocaleServiceProviderPool pool =
1.479 + LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);
1.480 +
1.481 + if (pool.hasProviders()) {
1.482 + // Assuming that all the country locales include necessary currency
1.483 + // symbols in the Java runtime's resources, so there is no need to
1.484 + // examine whether Java runtime's currency resource bundle is missing
1.485 + // names. Therefore, no resource bundle is provided for calling this
1.486 + // method.
1.487 + String symbol = pool.getLocalizedObject(
1.488 + CurrencyNameGetter.INSTANCE,
1.489 + locale, (OpenListResourceBundle)null,
1.490 + currencyCode, SYMBOL);
1.491 + if (symbol != null) {
1.492 + return symbol;
1.493 + }
1.494 + }
1.495 +
1.496 + ResourceBundle bundle = LocaleData.getCurrencyNames(locale);
1.497 + return bundle.getString(currencyCode);
1.498 + } catch (MissingResourceException e) {
1.499 + // use currency code as symbol of last resort
1.500 + return currencyCode;
1.501 + }
1.502 + }
1.503 +
1.504 + /**
1.505 + * Gets the default number of fraction digits used with this currency.
1.506 + * For example, the default number of fraction digits for the Euro is 2,
1.507 + * while for the Japanese Yen it's 0.
1.508 + * In the case of pseudo-currencies, such as IMF Special Drawing Rights,
1.509 + * -1 is returned.
1.510 + *
1.511 + * @return the default number of fraction digits used with this currency
1.512 + */
1.513 + public int getDefaultFractionDigits() {
1.514 + return defaultFractionDigits;
1.515 + }
1.516 +
1.517 + /**
1.518 + * Returns the ISO 4217 numeric code of this currency.
1.519 + *
1.520 + * @return the ISO 4217 numeric code of this currency
1.521 + * @since 1.7
1.522 + */
1.523 + public int getNumericCode() {
1.524 + return numericCode;
1.525 + }
1.526 +
1.527 + /**
1.528 + * Gets the name that is suitable for displaying this currency for
1.529 + * the default locale. If there is no suitable display name found
1.530 + * for the default locale, the ISO 4217 currency code is returned.
1.531 + *
1.532 + * @return the display name of this currency for the default locale
1.533 + * @since 1.7
1.534 + */
1.535 + public String getDisplayName() {
1.536 + return getDisplayName(Locale.getDefault(Locale.Category.DISPLAY));
1.537 + }
1.538 +
1.539 + /**
1.540 + * Gets the name that is suitable for displaying this currency for
1.541 + * the specified locale. If there is no suitable display name found
1.542 + * for the specified locale, the ISO 4217 currency code is returned.
1.543 + *
1.544 + * @param locale the locale for which a display name for this currency is
1.545 + * needed
1.546 + * @return the display name of this currency for the specified locale
1.547 + * @exception NullPointerException if <code>locale</code> is null
1.548 + * @since 1.7
1.549 + */
1.550 + public String getDisplayName(Locale locale) {
1.551 + try {
1.552 + OpenListResourceBundle bundle = LocaleData.getCurrencyNames(locale);
1.553 + String result = null;
1.554 + String bundleKey = currencyCode.toLowerCase(Locale.ROOT);
1.555 +
1.556 + // Check whether a provider can provide an implementation that's closer
1.557 + // to the requested locale than what the Java runtime itself can provide.
1.558 + LocaleServiceProviderPool pool =
1.559 + LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);
1.560 + if (pool.hasProviders()) {
1.561 + result = pool.getLocalizedObject(
1.562 + CurrencyNameGetter.INSTANCE,
1.563 + locale, bundleKey, bundle, currencyCode, DISPLAYNAME);
1.564 + }
1.565 +
1.566 + if (result == null) {
1.567 + result = bundle.getString(bundleKey);
1.568 + }
1.569 +
1.570 + if (result != null) {
1.571 + return result;
1.572 + }
1.573 + } catch (MissingResourceException e) {
1.574 + // fall through
1.575 + }
1.576 +
1.577 + // use currency code as symbol of last resort
1.578 + return currencyCode;
1.579 + }
1.580 +
1.581 + /**
1.582 + * Returns the ISO 4217 currency code of this currency.
1.583 + *
1.584 + * @return the ISO 4217 currency code of this currency
1.585 + */
1.586 + public String toString() {
1.587 + return currencyCode;
1.588 + }
1.589 +
1.590 + /**
1.591 + * Resolves instances being deserialized to a single instance per currency.
1.592 + */
1.593 + private Object readResolve() {
1.594 + return getInstance(currencyCode);
1.595 + }
1.596 +
1.597 + /**
1.598 + * Gets the main table entry for the country whose country code consists
1.599 + * of char1 and char2.
1.600 + */
1.601 + private static int getMainTableEntry(char char1, char char2) {
1.602 + if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') {
1.603 + throw new IllegalArgumentException();
1.604 + }
1.605 + return mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')];
1.606 + }
1.607 +
1.608 + /**
1.609 + * Sets the main table entry for the country whose country code consists
1.610 + * of char1 and char2.
1.611 + */
1.612 + private static void setMainTableEntry(char char1, char char2, int entry) {
1.613 + if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') {
1.614 + throw new IllegalArgumentException();
1.615 + }
1.616 + mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')] = entry;
1.617 + }
1.618 +
1.619 + /**
1.620 + * Obtains a localized currency names from a CurrencyNameProvider
1.621 + * implementation.
1.622 + */
1.623 + private static class CurrencyNameGetter
1.624 + implements LocaleServiceProviderPool.LocalizedObjectGetter<CurrencyNameProvider,
1.625 + String> {
1.626 + private static final CurrencyNameGetter INSTANCE = new CurrencyNameGetter();
1.627 +
1.628 + public String getObject(CurrencyNameProvider currencyNameProvider,
1.629 + Locale locale,
1.630 + String key,
1.631 + Object... params) {
1.632 + assert params.length == 1;
1.633 + int type = (Integer)params[0];
1.634 +
1.635 + switch(type) {
1.636 + case SYMBOL:
1.637 + return currencyNameProvider.getSymbol(key, locale);
1.638 + case DISPLAYNAME:
1.639 + return currencyNameProvider.getDisplayName(key, locale);
1.640 + default:
1.641 + assert false; // shouldn't happen
1.642 + }
1.643 +
1.644 + return null;
1.645 + }
1.646 + }
1.647 +
1.648 + private static int[] readIntArray(DataInputStream dis, int count) throws IOException {
1.649 + int[] ret = new int[count];
1.650 + for (int i = 0; i < count; i++) {
1.651 + ret[i] = dis.readInt();
1.652 + }
1.653 +
1.654 + return ret;
1.655 + }
1.656 +
1.657 + private static long[] readLongArray(DataInputStream dis, int count) throws IOException {
1.658 + long[] ret = new long[count];
1.659 + for (int i = 0; i < count; i++) {
1.660 + ret[i] = dis.readLong();
1.661 + }
1.662 +
1.663 + return ret;
1.664 + }
1.665 +
1.666 + private static String[] readStringArray(DataInputStream dis, int count) throws IOException {
1.667 + String[] ret = new String[count];
1.668 + for (int i = 0; i < count; i++) {
1.669 + ret[i] = dis.readUTF();
1.670 + }
1.671 +
1.672 + return ret;
1.673 + }
1.674 +
1.675 + /**
1.676 + * Replaces currency data found in the currencydata.properties file
1.677 + *
1.678 + * @param pattern regex pattern for the properties
1.679 + * @param ctry country code
1.680 + * @param data currency data. This is a comma separated string that
1.681 + * consists of "three-letter alphabet code", "three-digit numeric code",
1.682 + * and "one-digit (0,1,2, or 3) default fraction digit".
1.683 + * For example, "JPZ,392,0".
1.684 + * @throws
1.685 + */
1.686 + private static void replaceCurrencyData(Pattern pattern, String ctry, String curdata) {
1.687 +
1.688 + if (ctry.length() != 2) {
1.689 + // ignore invalid country code
1.690 + String message = new StringBuilder()
1.691 + .append("The entry in currency.properties for ")
1.692 + .append(ctry).append(" is ignored because of the invalid country code.")
1.693 + .toString();
1.694 + info(message, null);
1.695 + return;
1.696 + }
1.697 +
1.698 + Matcher m = pattern.matcher(curdata);
1.699 + if (!m.find()) {
1.700 + // format is not recognized. ignore the data
1.701 + String message = new StringBuilder()
1.702 + .append("The entry in currency.properties for ")
1.703 + .append(ctry)
1.704 + .append(" is ignored because the value format is not recognized.")
1.705 + .toString();
1.706 + info(message, null);
1.707 + return;
1.708 + }
1.709 +
1.710 + String code = m.group(1);
1.711 + int numeric = Integer.parseInt(m.group(2));
1.712 + int fraction = Integer.parseInt(m.group(3));
1.713 + int entry = numeric << NUMERIC_CODE_SHIFT;
1.714 +
1.715 + int index;
1.716 + for (index = 0; index < scOldCurrencies.length; index++) {
1.717 + if (scOldCurrencies[index].equals(code)) {
1.718 + break;
1.719 + }
1.720 + }
1.721 +
1.722 + if (index == scOldCurrencies.length) {
1.723 + // simple case
1.724 + entry |= (fraction << SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT) |
1.725 + (code.charAt(2) - 'A');
1.726 + } else {
1.727 + // special case
1.728 + entry |= SPECIAL_CASE_COUNTRY_MASK |
1.729 + (index + SPECIAL_CASE_COUNTRY_INDEX_DELTA);
1.730 + }
1.731 + setMainTableEntry(ctry.charAt(0), ctry.charAt(1), entry);
1.732 + }
1.733 +
1.734 + private static void info(String message, Throwable t) {
1.735 + PlatformLogger logger = PlatformLogger.getLogger("java.util.Currency");
1.736 + if (logger.isLoggable(PlatformLogger.INFO)) {
1.737 + if (t != null) {
1.738 + logger.info(message, t);
1.739 + } else {
1.740 + logger.info(message);
1.741 + }
1.742 + }
1.743 + }
1.744 +}