--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/util/Currency.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,739 @@
+/*
+ * Copyright 2000-2005 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package java.util;
+
+import java.io.BufferedInputStream;
+import java.io.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.Serializable;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import java.util.spi.CurrencyNameProvider;
+import java.util.spi.LocaleServiceProvider;
+import sun.util.LocaleServiceProviderPool;
+import sun.util.resources.LocaleData;
+import sun.util.resources.OpenListResourceBundle;
+
+
+/**
+ * Represents a currency. Currencies are identified by their ISO 4217 currency
+ * codes. Visit the <a href="http://www.iso.org/iso/en/prods-services/popstds/currencycodes.html">
+ * ISO web site</a> for more information, including a table of
+ * currency codes.
+ * <p>
+ * The class is designed so that there's never more than one
+ * <code>Currency</code> instance for any given currency. Therefore, there's
+ * no public constructor. You obtain a <code>Currency</code> instance using
+ * the <code>getInstance</code> methods.
+ * <p>
+ * Users can supersede the Java runtime currency data by creating a properties
+ * file named <code><JAVA_HOME>/lib/currency.properties</code>. The contents
+ * of the properties file are key/value pairs of the ISO 3166 country codes
+ * and the ISO 4217 currency data respectively. The value part consists of
+ * three ISO 4217 values of a currency, i.e., an alphabetic code, a numeric
+ * code, and a minor unit. Those three ISO 4217 values are separated by commas.
+ * The lines which start with '#'s are considered comment lines. For example,
+ * <p>
+ * <code>
+ * #Sample currency properties<br>
+ * JP=JPZ,999,0
+ * </code>
+ * <p>
+ * will supersede the currency data for Japan.
+ *
+ * @since 1.4
+ */
+public final class Currency implements Serializable {
+
+ private static final long serialVersionUID = -158308464356906721L;
+
+ /**
+ * ISO 4217 currency code for this currency.
+ *
+ * @serial
+ */
+ private final String currencyCode;
+
+ /**
+ * Default fraction digits for this currency.
+ * Set from currency data tables.
+ */
+ transient private final int defaultFractionDigits;
+
+ /**
+ * ISO 4217 numeric code for this currency.
+ * Set from currency data tables.
+ */
+ transient private final int numericCode;
+
+
+ // class data: instance map
+
+ private static HashMap<String, Currency> instances = new HashMap<String, Currency>(7);
+ private static HashSet<Currency> available;
+
+
+ // Class data: currency data obtained from currency.data file.
+ // Purpose:
+ // - determine valid country codes
+ // - determine valid currency codes
+ // - map country codes to currency codes
+ // - obtain default fraction digits for currency codes
+ //
+ // sc = special case; dfd = default fraction digits
+ // Simple countries are those where the country code is a prefix of the
+ // currency code, and there are no known plans to change the currency.
+ //
+ // table formats:
+ // - mainTable:
+ // - maps country code to 32-bit int
+ // - 26*26 entries, corresponding to [A-Z]*[A-Z]
+ // - \u007F -> not valid country
+ // - bits 18-31: unused
+ // - bits 8-17: numeric code (0 to 1023)
+ // - bit 7: 1 - special case, bits 0-4 indicate which one
+ // 0 - simple country, bits 0-4 indicate final char of currency code
+ // - bits 5-6: fraction digits for simple countries, 0 for special cases
+ // - bits 0-4: final char for currency code for simple country, or ID of special case
+ // - special case IDs:
+ // - 0: country has no currency
+ // - other: index into sc* arrays + 1
+ // - scCutOverTimes: cut-over time in millis as returned by
+ // System.currentTimeMillis for special case countries that are changing
+ // currencies; Long.MAX_VALUE for countries that are not changing currencies
+ // - scOldCurrencies: old currencies for special case countries
+ // - scNewCurrencies: new currencies for special case countries that are
+ // changing currencies; null for others
+ // - scOldCurrenciesDFD: default fraction digits for old currencies
+ // - scNewCurrenciesDFD: default fraction digits for new currencies, 0 for
+ // countries that are not changing currencies
+ // - otherCurrencies: concatenation of all currency codes that are not the
+ // main currency of a simple country, separated by "-"
+ // - otherCurrenciesDFD: decimal format digits for currencies in otherCurrencies, same order
+
+ static int formatVersion;
+ static int dataVersion;
+ static int[] mainTable;
+ static long[] scCutOverTimes;
+ static String[] scOldCurrencies;
+ static String[] scNewCurrencies;
+ static int[] scOldCurrenciesDFD;
+ static int[] scNewCurrenciesDFD;
+ static int[] scOldCurrenciesNumericCode;
+ static int[] scNewCurrenciesNumericCode;
+ static String otherCurrencies;
+ static int[] otherCurrenciesDFD;
+ static int[] otherCurrenciesNumericCode;
+
+ // handy constants - must match definitions in GenerateCurrencyData
+ // magic number
+ private static final int MAGIC_NUMBER = 0x43757244;
+ // number of characters from A to Z
+ private static final int A_TO_Z = ('Z' - 'A') + 1;
+ // entry for invalid country codes
+ private static final int INVALID_COUNTRY_ENTRY = 0x007F;
+ // entry for countries without currency
+ private static final int COUNTRY_WITHOUT_CURRENCY_ENTRY = 0x0080;
+ // mask for simple case country entries
+ private static final int SIMPLE_CASE_COUNTRY_MASK = 0x0000;
+ // mask for simple case country entry final character
+ private static final int SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK = 0x001F;
+ // mask for simple case country entry default currency digits
+ private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK = 0x0060;
+ // shift count for simple case country entry default currency digits
+ private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT = 5;
+ // mask for special case country entries
+ private static final int SPECIAL_CASE_COUNTRY_MASK = 0x0080;
+ // mask for special case country index
+ private static final int SPECIAL_CASE_COUNTRY_INDEX_MASK = 0x001F;
+ // delta from entry index component in main table to index into special case tables
+ private static final int SPECIAL_CASE_COUNTRY_INDEX_DELTA = 1;
+ // mask for distinguishing simple and special case countries
+ private static final int COUNTRY_TYPE_MASK = SIMPLE_CASE_COUNTRY_MASK | SPECIAL_CASE_COUNTRY_MASK;
+ // mask for the numeric code of the currency
+ private static final int NUMERIC_CODE_MASK = 0x0003FF00;
+ // shift count for the numeric code of the currency
+ private static final int NUMERIC_CODE_SHIFT = 8;
+
+ // Currency data format version
+ private static final int VALID_FORMAT_VERSION = 1;
+
+ static {
+ AccessController.doPrivileged(new PrivilegedAction() {
+ public Object run() {
+ String homeDir = System.getProperty("java.home");
+ try {
+ String dataFile = homeDir + File.separator +
+ "lib" + File.separator + "currency.data";
+ DataInputStream dis = new DataInputStream(
+ new BufferedInputStream(
+ new FileInputStream(dataFile)));
+ if (dis.readInt() != MAGIC_NUMBER) {
+ throw new InternalError("Currency data is possibly corrupted");
+ }
+ formatVersion = dis.readInt();
+ if (formatVersion != VALID_FORMAT_VERSION) {
+ throw new InternalError("Currency data format is incorrect");
+ }
+ dataVersion = dis.readInt();
+ mainTable = readIntArray(dis, A_TO_Z * A_TO_Z);
+ int scCount = dis.readInt();
+ scCutOverTimes = readLongArray(dis, scCount);
+ scOldCurrencies = readStringArray(dis, scCount);
+ scNewCurrencies = readStringArray(dis, scCount);
+ scOldCurrenciesDFD = readIntArray(dis, scCount);
+ scNewCurrenciesDFD = readIntArray(dis, scCount);
+ scOldCurrenciesNumericCode = readIntArray(dis, scCount);
+ scNewCurrenciesNumericCode = readIntArray(dis, scCount);
+ int ocCount = dis.readInt();
+ otherCurrencies = dis.readUTF();
+ otherCurrenciesDFD = readIntArray(dis, ocCount);
+ otherCurrenciesNumericCode = readIntArray(dis, ocCount);
+ dis.close();
+ } catch (IOException e) {
+ InternalError ie = new InternalError();
+ ie.initCause(e);
+ throw ie;
+ }
+
+ // look for the properties file for overrides
+ try {
+ File propFile = new File(homeDir + File.separator +
+ "lib" + File.separator +
+ "currency.properties");
+ if (propFile.exists()) {
+ Properties props = new Properties();
+ props.load(new FileReader(propFile));
+ Set<String> keys = props.stringPropertyNames();
+ Pattern propertiesPattern =
+ Pattern.compile("([A-Z]{3})\\s*,\\s*(\\d{3})\\s*,\\s*([0-3])");
+ for (String key : keys) {
+ replaceCurrencyData(propertiesPattern,
+ key.toUpperCase(Locale.ROOT),
+ props.getProperty(key).toUpperCase(Locale.ROOT));
+ }
+ }
+ } catch (IOException e) {
+ log(Level.INFO, "currency.properties is ignored because of an IOException", e);
+ }
+ return null;
+ }
+ });
+ }
+
+ /**
+ * Constants for retrieving localized names from the name providers.
+ */
+ private static final int SYMBOL = 0;
+ private static final int DISPLAYNAME = 1;
+
+
+ /**
+ * Constructs a <code>Currency</code> instance. The constructor is private
+ * so that we can insure that there's never more than one instance for a
+ * given currency.
+ */
+ private Currency(String currencyCode, int defaultFractionDigits, int numericCode) {
+ this.currencyCode = currencyCode;
+ this.defaultFractionDigits = defaultFractionDigits;
+ this.numericCode = numericCode;
+ }
+
+ /**
+ * Returns the <code>Currency</code> instance for the given currency code.
+ *
+ * @param currencyCode the ISO 4217 code of the currency
+ * @return the <code>Currency</code> instance for the given currency code
+ * @exception NullPointerException if <code>currencyCode</code> is null
+ * @exception IllegalArgumentException if <code>currencyCode</code> is not
+ * a supported ISO 4217 code.
+ */
+ public static Currency getInstance(String currencyCode) {
+ return getInstance(currencyCode, Integer.MIN_VALUE, 0);
+ }
+
+ private static Currency getInstance(String currencyCode, int defaultFractionDigits,
+ int numericCode) {
+ synchronized (instances) {
+ // Try to look up the currency code in the instances table.
+ // This does the null pointer check as a side effect.
+ // Also, if there already is an entry, the currencyCode must be valid.
+ Currency instance = instances.get(currencyCode);
+ if (instance != null) {
+ return instance;
+ }
+
+ if (defaultFractionDigits == Integer.MIN_VALUE) {
+ // Currency code not internally generated, need to verify first
+ // A currency code must have 3 characters and exist in the main table
+ // or in the list of other currencies.
+ if (currencyCode.length() != 3) {
+ throw new IllegalArgumentException();
+ }
+ char char1 = currencyCode.charAt(0);
+ char char2 = currencyCode.charAt(1);
+ int tableEntry = getMainTableEntry(char1, char2);
+ if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
+ && tableEntry != INVALID_COUNTRY_ENTRY
+ && currencyCode.charAt(2) - 'A' == (tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK)) {
+ defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
+ numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
+ } else {
+ // Check for '-' separately so we don't get false hits in the table.
+ if (currencyCode.charAt(2) == '-') {
+ throw new IllegalArgumentException();
+ }
+ int index = otherCurrencies.indexOf(currencyCode);
+ if (index == -1) {
+ throw new IllegalArgumentException();
+ }
+ defaultFractionDigits = otherCurrenciesDFD[index / 4];
+ numericCode = otherCurrenciesNumericCode[index / 4];
+ }
+ }
+
+ instance = new Currency(currencyCode, defaultFractionDigits, numericCode);
+ instances.put(currencyCode, instance);
+ return instance;
+ }
+ }
+
+ /**
+ * Returns the <code>Currency</code> instance for the country of the
+ * given locale. The language and variant components of the locale
+ * are ignored. The result may vary over time, as countries change their
+ * currencies. For example, for the original member countries of the
+ * European Monetary Union, the method returns the old national currencies
+ * until December 31, 2001, and the Euro from January 1, 2002, local time
+ * of the respective countries.
+ * <p>
+ * The method returns <code>null</code> for territories that don't
+ * have a currency, such as Antarctica.
+ *
+ * @param locale the locale for whose country a <code>Currency</code>
+ * instance is needed
+ * @return the <code>Currency</code> instance for the country of the given
+ * locale, or null
+ * @exception NullPointerException if <code>locale</code> or its country
+ * code is null
+ * @exception IllegalArgumentException if the country of the given locale
+ * is not a supported ISO 3166 country code.
+ */
+ public static Currency getInstance(Locale locale) {
+ String country = locale.getCountry();
+ if (country == null) {
+ throw new NullPointerException();
+ }
+
+ if (country.length() != 2) {
+ throw new IllegalArgumentException();
+ }
+
+ char char1 = country.charAt(0);
+ char char2 = country.charAt(1);
+ int tableEntry = getMainTableEntry(char1, char2);
+ if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
+ && tableEntry != INVALID_COUNTRY_ENTRY) {
+ char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A');
+ int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
+ int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
+ StringBuffer sb = new StringBuffer(country);
+ sb.append(finalChar);
+ return getInstance(sb.toString(), defaultFractionDigits, numericCode);
+ } else {
+ // special cases
+ if (tableEntry == INVALID_COUNTRY_ENTRY) {
+ throw new IllegalArgumentException();
+ }
+ if (tableEntry == COUNTRY_WITHOUT_CURRENCY_ENTRY) {
+ return null;
+ } else {
+ int index = (tableEntry & SPECIAL_CASE_COUNTRY_INDEX_MASK) - SPECIAL_CASE_COUNTRY_INDEX_DELTA;
+ if (scCutOverTimes[index] == Long.MAX_VALUE || System.currentTimeMillis() < scCutOverTimes[index]) {
+ return getInstance(scOldCurrencies[index], scOldCurrenciesDFD[index],
+ scOldCurrenciesNumericCode[index]);
+ } else {
+ return getInstance(scNewCurrencies[index], scNewCurrenciesDFD[index],
+ scNewCurrenciesNumericCode[index]);
+ }
+ }
+ }
+ }
+
+ /**
+ * Gets the set of available currencies. The returned set of currencies
+ * contains all of the available currencies, which may include currencies
+ * that represent obsolete ISO 4217 codes. The set can be modified
+ * without affecting the available currencies in the runtime.
+ *
+ * @return the set of available currencies. If there is no currency
+ * available in the runtime, the returned set is empty.
+ * @since 1.7
+ */
+ public static Set<Currency> getAvailableCurrencies() {
+ synchronized(Currency.class) {
+ if (available == null) {
+ available = new HashSet<Currency>(256);
+
+ // Add simple currencies first
+ for (char c1 = 'A'; c1 <= 'Z'; c1 ++) {
+ for (char c2 = 'A'; c2 <= 'Z'; c2 ++) {
+ int tableEntry = getMainTableEntry(c1, c2);
+ if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
+ && tableEntry != INVALID_COUNTRY_ENTRY) {
+ char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A');
+ int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
+ int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
+ StringBuilder sb = new StringBuilder();
+ sb.append(c1);
+ sb.append(c2);
+ sb.append(finalChar);
+ available.add(getInstance(sb.toString(), defaultFractionDigits, numericCode));
+ }
+ }
+ }
+
+ // Now add other currencies
+ StringTokenizer st = new StringTokenizer(otherCurrencies, "-");
+ while (st.hasMoreElements()) {
+ available.add(getInstance((String)st.nextElement()));
+ }
+ }
+ }
+
+ return (Set<Currency>) available.clone();
+ }
+
+ /**
+ * Gets the ISO 4217 currency code of this currency.
+ *
+ * @return the ISO 4217 currency code of this currency.
+ */
+ public String getCurrencyCode() {
+ return currencyCode;
+ }
+
+ /**
+ * Gets the symbol of this currency for the default locale.
+ * For example, for the US Dollar, the symbol is "$" if the default
+ * locale is the US, while for other locales it may be "US$". If no
+ * symbol can be determined, the ISO 4217 currency code is returned.
+ *
+ * @return the symbol of this currency for the default locale
+ */
+ public String getSymbol() {
+ return getSymbol(Locale.getDefault());
+ }
+
+ /**
+ * Gets the symbol of this currency for the specified locale.
+ * For example, for the US Dollar, the symbol is "$" if the specified
+ * locale is the US, while for other locales it may be "US$". If no
+ * symbol can be determined, the ISO 4217 currency code is returned.
+ *
+ * @param locale the locale for which a display name for this currency is
+ * needed
+ * @return the symbol of this currency for the specified locale
+ * @exception NullPointerException if <code>locale</code> is null
+ */
+ public String getSymbol(Locale locale) {
+ try {
+ // Check whether a provider can provide an implementation that's closer
+ // to the requested locale than what the Java runtime itself can provide.
+ LocaleServiceProviderPool pool =
+ LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);
+
+ if (pool.hasProviders()) {
+ // Assuming that all the country locales include necessary currency
+ // symbols in the Java runtime's resources, so there is no need to
+ // examine whether Java runtime's currency resource bundle is missing
+ // names. Therefore, no resource bundle is provided for calling this
+ // method.
+ String symbol = pool.getLocalizedObject(
+ CurrencyNameGetter.INSTANCE,
+ locale, (OpenListResourceBundle)null,
+ currencyCode, SYMBOL);
+ if (symbol != null) {
+ return symbol;
+ }
+ }
+
+ ResourceBundle bundle = LocaleData.getCurrencyNames(locale);
+ return bundle.getString(currencyCode);
+ } catch (MissingResourceException e) {
+ // use currency code as symbol of last resort
+ return currencyCode;
+ }
+ }
+
+ /**
+ * Gets the default number of fraction digits used with this currency.
+ * For example, the default number of fraction digits for the Euro is 2,
+ * while for the Japanese Yen it's 0.
+ * In the case of pseudo-currencies, such as IMF Special Drawing Rights,
+ * -1 is returned.
+ *
+ * @return the default number of fraction digits used with this currency
+ */
+ public int getDefaultFractionDigits() {
+ return defaultFractionDigits;
+ }
+
+ /**
+ * Returns the ISO 4217 numeric code of this currency.
+ *
+ * @return the ISO 4217 numeric code of this currency
+ * @since 1.7
+ */
+ public int getNumericCode() {
+ return numericCode;
+ }
+
+ /**
+ * Gets the name that is suitable for displaying this currency for
+ * the default locale. If there is no suitable display name found
+ * for the default locale, the ISO 4217 currency code is returned.
+ *
+ * @return the display name of this currency for the default locale
+ * @since 1.7
+ */
+ public String getDisplayName() {
+ return getDisplayName(Locale.getDefault());
+ }
+
+ /**
+ * Gets the name that is suitable for displaying this currency for
+ * the specified locale. If there is no suitable display name found
+ * for the specified locale, the ISO 4217 currency code is returned.
+ *
+ * @param locale the locale for which a display name for this currency is
+ * needed
+ * @return the display name of this currency for the specified locale
+ * @exception NullPointerException if <code>locale</code> is null
+ * @since 1.7
+ */
+ public String getDisplayName(Locale locale) {
+ try {
+ OpenListResourceBundle bundle = LocaleData.getCurrencyNames(locale);
+ String result = null;
+ String bundleKey = currencyCode.toLowerCase(Locale.ROOT);
+
+ // Check whether a provider can provide an implementation that's closer
+ // to the requested locale than what the Java runtime itself can provide.
+ LocaleServiceProviderPool pool =
+ LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);
+ if (pool.hasProviders()) {
+ result = pool.getLocalizedObject(
+ CurrencyNameGetter.INSTANCE,
+ locale, bundleKey, bundle, currencyCode, DISPLAYNAME);
+ }
+
+ if (result == null) {
+ result = bundle.getString(bundleKey);
+ }
+
+ if (result != null) {
+ return result;
+ }
+ } catch (MissingResourceException e) {
+ // fall through
+ }
+
+ // use currency code as symbol of last resort
+ return currencyCode;
+ }
+
+ /**
+ * Returns the ISO 4217 currency code of this currency.
+ *
+ * @return the ISO 4217 currency code of this currency
+ */
+ public String toString() {
+ return currencyCode;
+ }
+
+ /**
+ * Resolves instances being deserialized to a single instance per currency.
+ */
+ private Object readResolve() {
+ return getInstance(currencyCode);
+ }
+
+ /**
+ * Gets the main table entry for the country whose country code consists
+ * of char1 and char2.
+ */
+ private static int getMainTableEntry(char char1, char char2) {
+ if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') {
+ throw new IllegalArgumentException();
+ }
+ return mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')];
+ }
+
+ /**
+ * Sets the main table entry for the country whose country code consists
+ * of char1 and char2.
+ */
+ private static void setMainTableEntry(char char1, char char2, int entry) {
+ if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') {
+ throw new IllegalArgumentException();
+ }
+ mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')] = entry;
+ }
+
+ /**
+ * Obtains a localized currency names from a CurrencyNameProvider
+ * implementation.
+ */
+ private static class CurrencyNameGetter
+ implements LocaleServiceProviderPool.LocalizedObjectGetter<CurrencyNameProvider,
+ String> {
+ private static final CurrencyNameGetter INSTANCE = new CurrencyNameGetter();
+
+ public String getObject(CurrencyNameProvider currencyNameProvider,
+ Locale locale,
+ String key,
+ Object... params) {
+ assert params.length == 1;
+ int type = (Integer)params[0];
+
+ switch(type) {
+ case SYMBOL:
+ return currencyNameProvider.getSymbol(key, locale);
+ case DISPLAYNAME:
+ return currencyNameProvider.getDisplayName(key, locale);
+ default:
+ assert false; // shouldn't happen
+ }
+
+ return null;
+ }
+ }
+
+ private static int[] readIntArray(DataInputStream dis, int count) throws IOException {
+ int[] ret = new int[count];
+ for (int i = 0; i < count; i++) {
+ ret[i] = dis.readInt();
+ }
+
+ return ret;
+ }
+
+ private static long[] readLongArray(DataInputStream dis, int count) throws IOException {
+ long[] ret = new long[count];
+ for (int i = 0; i < count; i++) {
+ ret[i] = dis.readLong();
+ }
+
+ return ret;
+ }
+
+ private static String[] readStringArray(DataInputStream dis, int count) throws IOException {
+ String[] ret = new String[count];
+ for (int i = 0; i < count; i++) {
+ ret[i] = dis.readUTF();
+ }
+
+ return ret;
+ }
+
+ /**
+ * Replaces currency data found in the currencydata.properties file
+ *
+ * @param pattern regex pattern for the properties
+ * @param ctry country code
+ * @param data currency data. This is a comma separated string that
+ * consists of "three-letter alphabet code", "three-digit numeric code",
+ * and "one-digit (0,1,2, or 3) default fraction digit".
+ * For example, "JPZ,392,0".
+ * @throws
+ */
+ private static void replaceCurrencyData(Pattern pattern, String ctry, String curdata) {
+
+ if (ctry.length() != 2) {
+ // ignore invalid country code
+ String message = new StringBuilder()
+ .append("The entry in currency.properties for ")
+ .append(ctry).append(" is ignored because of the invalid country code.")
+ .toString();
+ log(Level.INFO, message, null);
+ return;
+ }
+
+ Matcher m = pattern.matcher(curdata);
+ if (!m.find()) {
+ // format is not recognized. ignore the data
+ String message = new StringBuilder()
+ .append("The entry in currency.properties for ")
+ .append(ctry)
+ .append(" is ignored because the value format is not recognized.")
+ .toString();
+ log(Level.INFO, message, null);
+ return;
+ }
+
+ String code = m.group(1);
+ int numeric = Integer.parseInt(m.group(2));
+ int fraction = Integer.parseInt(m.group(3));
+ int entry = numeric << NUMERIC_CODE_SHIFT;
+
+ int index;
+ for (index = 0; index < scOldCurrencies.length; index++) {
+ if (scOldCurrencies[index].equals(code)) {
+ break;
+ }
+ }
+
+ if (index == scOldCurrencies.length) {
+ // simple case
+ entry |= (fraction << SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT) |
+ (code.charAt(2) - 'A');
+ } else {
+ // special case
+ entry |= SPECIAL_CASE_COUNTRY_MASK |
+ (index + SPECIAL_CASE_COUNTRY_INDEX_DELTA);
+ }
+ setMainTableEntry(ctry.charAt(0), ctry.charAt(1), entry);
+ }
+
+ private static void log(Level level, String message, Throwable t) {
+ Logger logger = Logger.getLogger("java.util.Currency");
+ if (logger.isLoggable(level)) {
+ if (t != null) {
+ logger.log(level, message, t);
+ } else {
+ logger.log(level, message);
+ }
+ }
+ }
+}