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/*
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* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.util;
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import java.io.BufferedInputStream;
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import java.io.DataInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.Serializable;
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import java.security.AccessController;
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import java.security.PrivilegedAction;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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* Represents a currency. Currencies are identified by their ISO 4217 currency
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* codes. Visit the <a href="http://www.iso.org/iso/en/prods-services/popstds/currencycodes.html">
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* ISO web site</a> for more information, including a table of
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* currency codes.
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* <p>
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* The class is designed so that there's never more than one
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* <code>Currency</code> instance for any given currency. Therefore, there's
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* no public constructor. You obtain a <code>Currency</code> instance using
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* the <code>getInstance</code> methods.
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* <p>
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* Users can supersede the Java runtime currency data by creating a properties
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* file named <code><JAVA_HOME>/lib/currency.properties</code>. The contents
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* of the properties file are key/value pairs of the ISO 3166 country codes
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* and the ISO 4217 currency data respectively. The value part consists of
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* three ISO 4217 values of a currency, i.e., an alphabetic code, a numeric
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* code, and a minor unit. Those three ISO 4217 values are separated by commas.
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* The lines which start with '#'s are considered comment lines. For example,
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* <p>
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* <code>
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* #Sample currency properties<br>
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* JP=JPZ,999,0
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* </code>
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* <p>
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* will supersede the currency data for Japan.
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*
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* @since 1.4
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*/
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public final class Currency implements Serializable {
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private static final long serialVersionUID = -158308464356906721L;
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/**
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* ISO 4217 currency code for this currency.
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*
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* @serial
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*/
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private final String currencyCode;
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/**
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* Default fraction digits for this currency.
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* Set from currency data tables.
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*/
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transient private final int defaultFractionDigits;
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/**
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* ISO 4217 numeric code for this currency.
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* Set from currency data tables.
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*/
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transient private final int numericCode;
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// class data: instance map
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private static HashMap<String, Currency> instances = new HashMap<String, Currency>(7);
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private static HashSet<Currency> available;
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// Class data: currency data obtained from currency.data file.
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// Purpose:
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// - determine valid country codes
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// - determine valid currency codes
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// - map country codes to currency codes
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// - obtain default fraction digits for currency codes
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//
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// sc = special case; dfd = default fraction digits
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// Simple countries are those where the country code is a prefix of the
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// currency code, and there are no known plans to change the currency.
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//
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// table formats:
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// - mainTable:
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// - maps country code to 32-bit int
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// - 26*26 entries, corresponding to [A-Z]*[A-Z]
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// - \u007F -> not valid country
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// - bits 18-31: unused
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// - bits 8-17: numeric code (0 to 1023)
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// - bit 7: 1 - special case, bits 0-4 indicate which one
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// 0 - simple country, bits 0-4 indicate final char of currency code
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// - bits 5-6: fraction digits for simple countries, 0 for special cases
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// - bits 0-4: final char for currency code for simple country, or ID of special case
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// - special case IDs:
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// - 0: country has no currency
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// - other: index into sc* arrays + 1
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// - scCutOverTimes: cut-over time in millis as returned by
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// System.currentTimeMillis for special case countries that are changing
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// currencies; Long.MAX_VALUE for countries that are not changing currencies
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// - scOldCurrencies: old currencies for special case countries
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// - scNewCurrencies: new currencies for special case countries that are
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// changing currencies; null for others
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// - scOldCurrenciesDFD: default fraction digits for old currencies
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// - scNewCurrenciesDFD: default fraction digits for new currencies, 0 for
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// countries that are not changing currencies
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// - otherCurrencies: concatenation of all currency codes that are not the
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// main currency of a simple country, separated by "-"
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// - otherCurrenciesDFD: decimal format digits for currencies in otherCurrencies, same order
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static int formatVersion;
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static int dataVersion;
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static int[] mainTable;
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static long[] scCutOverTimes;
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static String[] scOldCurrencies;
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static String[] scNewCurrencies;
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static int[] scOldCurrenciesDFD;
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static int[] scNewCurrenciesDFD;
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static int[] scOldCurrenciesNumericCode;
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static int[] scNewCurrenciesNumericCode;
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static String otherCurrencies;
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static int[] otherCurrenciesDFD;
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static int[] otherCurrenciesNumericCode;
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// handy constants - must match definitions in GenerateCurrencyData
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// magic number
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private static final int MAGIC_NUMBER = 0x43757244;
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// number of characters from A to Z
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private static final int A_TO_Z = ('Z' - 'A') + 1;
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// entry for invalid country codes
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private static final int INVALID_COUNTRY_ENTRY = 0x007F;
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// entry for countries without currency
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private static final int COUNTRY_WITHOUT_CURRENCY_ENTRY = 0x0080;
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// mask for simple case country entries
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private static final int SIMPLE_CASE_COUNTRY_MASK = 0x0000;
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// mask for simple case country entry final character
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private static final int SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK = 0x001F;
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// mask for simple case country entry default currency digits
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private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK = 0x0060;
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// shift count for simple case country entry default currency digits
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private static final int SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT = 5;
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// mask for special case country entries
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private static final int SPECIAL_CASE_COUNTRY_MASK = 0x0080;
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// mask for special case country index
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private static final int SPECIAL_CASE_COUNTRY_INDEX_MASK = 0x001F;
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// delta from entry index component in main table to index into special case tables
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private static final int SPECIAL_CASE_COUNTRY_INDEX_DELTA = 1;
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// mask for distinguishing simple and special case countries
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private static final int COUNTRY_TYPE_MASK = SIMPLE_CASE_COUNTRY_MASK | SPECIAL_CASE_COUNTRY_MASK;
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// mask for the numeric code of the currency
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private static final int NUMERIC_CODE_MASK = 0x0003FF00;
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// shift count for the numeric code of the currency
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private static final int NUMERIC_CODE_SHIFT = 8;
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// Currency data format version
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private static final int VALID_FORMAT_VERSION = 1;
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static {
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AccessController.doPrivileged(new PrivilegedAction() {
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public Object run() {
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String homeDir = System.getProperty("java.home");
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try {
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String dataFile = homeDir + File.separator +
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"lib" + File.separator + "currency.data";
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DataInputStream dis = new DataInputStream(
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new BufferedInputStream(
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new FileInputStream(dataFile)));
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if (dis.readInt() != MAGIC_NUMBER) {
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throw new InternalError("Currency data is possibly corrupted");
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}
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formatVersion = dis.readInt();
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if (formatVersion != VALID_FORMAT_VERSION) {
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throw new InternalError("Currency data format is incorrect");
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}
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dataVersion = dis.readInt();
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mainTable = readIntArray(dis, A_TO_Z * A_TO_Z);
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int scCount = dis.readInt();
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scCutOverTimes = readLongArray(dis, scCount);
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scOldCurrencies = readStringArray(dis, scCount);
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scNewCurrencies = readStringArray(dis, scCount);
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scOldCurrenciesDFD = readIntArray(dis, scCount);
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scNewCurrenciesDFD = readIntArray(dis, scCount);
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scOldCurrenciesNumericCode = readIntArray(dis, scCount);
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scNewCurrenciesNumericCode = readIntArray(dis, scCount);
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int ocCount = dis.readInt();
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otherCurrencies = dis.readUTF();
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otherCurrenciesDFD = readIntArray(dis, ocCount);
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otherCurrenciesNumericCode = readIntArray(dis, ocCount);
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dis.close();
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} catch (IOException e) {
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InternalError ie = new InternalError();
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ie.initCause(e);
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throw ie;
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}
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// look for the properties file for overrides
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// try {
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File propFile = new File(homeDir + File.separator +
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"lib" + File.separator +
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"currency.properties");
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// if (propFile.exists()) {
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// Properties props = new Properties();
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// try (FileReader fr = new FileReader(propFile)) {
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// props.load(fr);
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// }
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// Set<String> keys = props.stringPropertyNames();
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// Pattern propertiesPattern =
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// Pattern.compile("([A-Z]{3})\\s*,\\s*(\\d{3})\\s*,\\s*([0-3])");
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// for (String key : keys) {
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// replaceCurrencyData(propertiesPattern,
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// key.toUpperCase(Locale.ROOT),
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// props.getProperty(key).toUpperCase(Locale.ROOT));
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// }
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// }
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// } catch (IOException e) {
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// info("currency.properties is ignored because of an IOException", e);
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// }
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return null;
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}
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});
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}
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/**
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* Constants for retrieving localized names from the name providers.
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*/
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private static final int SYMBOL = 0;
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private static final int DISPLAYNAME = 1;
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/**
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* Constructs a <code>Currency</code> instance. The constructor is private
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* so that we can insure that there's never more than one instance for a
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* given currency.
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*/
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private Currency(String currencyCode, int defaultFractionDigits, int numericCode) {
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this.currencyCode = currencyCode;
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this.defaultFractionDigits = defaultFractionDigits;
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this.numericCode = numericCode;
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}
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/**
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* Returns the <code>Currency</code> instance for the given currency code.
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*
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* @param currencyCode the ISO 4217 code of the currency
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* @return the <code>Currency</code> instance for the given currency code
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* @exception NullPointerException if <code>currencyCode</code> is null
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* @exception IllegalArgumentException if <code>currencyCode</code> is not
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* a supported ISO 4217 code.
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*/
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public static Currency getInstance(String currencyCode) {
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return getInstance(currencyCode, Integer.MIN_VALUE, 0);
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}
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private static Currency getInstance(String currencyCode, int defaultFractionDigits,
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int numericCode) {
|
jtulach@1334
|
282 |
synchronized (instances) {
|
jtulach@1334
|
283 |
// Try to look up the currency code in the instances table.
|
jtulach@1334
|
284 |
// This does the null pointer check as a side effect.
|
jtulach@1334
|
285 |
// Also, if there already is an entry, the currencyCode must be valid.
|
jtulach@1334
|
286 |
Currency instance = instances.get(currencyCode);
|
jtulach@1334
|
287 |
if (instance != null) {
|
jtulach@1334
|
288 |
return instance;
|
jtulach@1334
|
289 |
}
|
jtulach@1334
|
290 |
|
jtulach@1334
|
291 |
if (defaultFractionDigits == Integer.MIN_VALUE) {
|
jtulach@1334
|
292 |
// Currency code not internally generated, need to verify first
|
jtulach@1334
|
293 |
// A currency code must have 3 characters and exist in the main table
|
jtulach@1334
|
294 |
// or in the list of other currencies.
|
jtulach@1334
|
295 |
if (currencyCode.length() != 3) {
|
jtulach@1334
|
296 |
throw new IllegalArgumentException();
|
jtulach@1334
|
297 |
}
|
jtulach@1334
|
298 |
char char1 = currencyCode.charAt(0);
|
jtulach@1334
|
299 |
char char2 = currencyCode.charAt(1);
|
jtulach@1334
|
300 |
int tableEntry = getMainTableEntry(char1, char2);
|
jtulach@1334
|
301 |
if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
|
jtulach@1334
|
302 |
&& tableEntry != INVALID_COUNTRY_ENTRY
|
jtulach@1334
|
303 |
&& currencyCode.charAt(2) - 'A' == (tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK)) {
|
jtulach@1334
|
304 |
defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
|
jtulach@1334
|
305 |
numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
|
jtulach@1334
|
306 |
} else {
|
jtulach@1334
|
307 |
// Check for '-' separately so we don't get false hits in the table.
|
jtulach@1334
|
308 |
if (currencyCode.charAt(2) == '-') {
|
jtulach@1334
|
309 |
throw new IllegalArgumentException();
|
jtulach@1334
|
310 |
}
|
jtulach@1334
|
311 |
int index = otherCurrencies.indexOf(currencyCode);
|
jtulach@1334
|
312 |
if (index == -1) {
|
jtulach@1334
|
313 |
throw new IllegalArgumentException();
|
jtulach@1334
|
314 |
}
|
jtulach@1334
|
315 |
defaultFractionDigits = otherCurrenciesDFD[index / 4];
|
jtulach@1334
|
316 |
numericCode = otherCurrenciesNumericCode[index / 4];
|
jtulach@1334
|
317 |
}
|
jtulach@1334
|
318 |
}
|
jtulach@1334
|
319 |
|
jtulach@1334
|
320 |
instance = new Currency(currencyCode, defaultFractionDigits, numericCode);
|
jtulach@1334
|
321 |
instances.put(currencyCode, instance);
|
jtulach@1334
|
322 |
return instance;
|
jtulach@1334
|
323 |
}
|
jtulach@1334
|
324 |
}
|
jtulach@1334
|
325 |
|
jtulach@1334
|
326 |
/**
|
jtulach@1334
|
327 |
* Returns the <code>Currency</code> instance for the country of the
|
jtulach@1334
|
328 |
* given locale. The language and variant components of the locale
|
jtulach@1334
|
329 |
* are ignored. The result may vary over time, as countries change their
|
jtulach@1334
|
330 |
* currencies. For example, for the original member countries of the
|
jtulach@1334
|
331 |
* European Monetary Union, the method returns the old national currencies
|
jtulach@1334
|
332 |
* until December 31, 2001, and the Euro from January 1, 2002, local time
|
jtulach@1334
|
333 |
* of the respective countries.
|
jtulach@1334
|
334 |
* <p>
|
jtulach@1334
|
335 |
* The method returns <code>null</code> for territories that don't
|
jtulach@1334
|
336 |
* have a currency, such as Antarctica.
|
jtulach@1334
|
337 |
*
|
jtulach@1334
|
338 |
* @param locale the locale for whose country a <code>Currency</code>
|
jtulach@1334
|
339 |
* instance is needed
|
jtulach@1334
|
340 |
* @return the <code>Currency</code> instance for the country of the given
|
jtulach@1334
|
341 |
* locale, or null
|
jtulach@1334
|
342 |
* @exception NullPointerException if <code>locale</code> or its country
|
jtulach@1334
|
343 |
* code is null
|
jtulach@1334
|
344 |
* @exception IllegalArgumentException if the country of the given locale
|
jtulach@1334
|
345 |
* is not a supported ISO 3166 country code.
|
jtulach@1334
|
346 |
*/
|
jtulach@1334
|
347 |
public static Currency getInstance(Locale locale) {
|
jtulach@1334
|
348 |
String country = locale.getCountry();
|
jtulach@1334
|
349 |
if (country == null) {
|
jtulach@1334
|
350 |
throw new NullPointerException();
|
jtulach@1334
|
351 |
}
|
jtulach@1334
|
352 |
|
jtulach@1334
|
353 |
if (country.length() != 2) {
|
jtulach@1334
|
354 |
throw new IllegalArgumentException();
|
jtulach@1334
|
355 |
}
|
jtulach@1334
|
356 |
|
jtulach@1334
|
357 |
char char1 = country.charAt(0);
|
jtulach@1334
|
358 |
char char2 = country.charAt(1);
|
jtulach@1334
|
359 |
int tableEntry = getMainTableEntry(char1, char2);
|
jtulach@1334
|
360 |
if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
|
jtulach@1334
|
361 |
&& tableEntry != INVALID_COUNTRY_ENTRY) {
|
jtulach@1334
|
362 |
char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A');
|
jtulach@1334
|
363 |
int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
|
jtulach@1334
|
364 |
int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
|
jtulach@1334
|
365 |
StringBuffer sb = new StringBuffer(country);
|
jtulach@1334
|
366 |
sb.append(finalChar);
|
jtulach@1334
|
367 |
return getInstance(sb.toString(), defaultFractionDigits, numericCode);
|
jtulach@1334
|
368 |
} else {
|
jtulach@1334
|
369 |
// special cases
|
jtulach@1334
|
370 |
if (tableEntry == INVALID_COUNTRY_ENTRY) {
|
jtulach@1334
|
371 |
throw new IllegalArgumentException();
|
jtulach@1334
|
372 |
}
|
jtulach@1334
|
373 |
if (tableEntry == COUNTRY_WITHOUT_CURRENCY_ENTRY) {
|
jtulach@1334
|
374 |
return null;
|
jtulach@1334
|
375 |
} else {
|
jtulach@1334
|
376 |
int index = (tableEntry & SPECIAL_CASE_COUNTRY_INDEX_MASK) - SPECIAL_CASE_COUNTRY_INDEX_DELTA;
|
jtulach@1334
|
377 |
if (scCutOverTimes[index] == Long.MAX_VALUE || System.currentTimeMillis() < scCutOverTimes[index]) {
|
jtulach@1334
|
378 |
return getInstance(scOldCurrencies[index], scOldCurrenciesDFD[index],
|
jtulach@1334
|
379 |
scOldCurrenciesNumericCode[index]);
|
jtulach@1334
|
380 |
} else {
|
jtulach@1334
|
381 |
return getInstance(scNewCurrencies[index], scNewCurrenciesDFD[index],
|
jtulach@1334
|
382 |
scNewCurrenciesNumericCode[index]);
|
jtulach@1334
|
383 |
}
|
jtulach@1334
|
384 |
}
|
jtulach@1334
|
385 |
}
|
jtulach@1334
|
386 |
}
|
jtulach@1334
|
387 |
|
jtulach@1334
|
388 |
/**
|
jtulach@1334
|
389 |
* Gets the set of available currencies. The returned set of currencies
|
jtulach@1334
|
390 |
* contains all of the available currencies, which may include currencies
|
jtulach@1334
|
391 |
* that represent obsolete ISO 4217 codes. The set can be modified
|
jtulach@1334
|
392 |
* without affecting the available currencies in the runtime.
|
jtulach@1334
|
393 |
*
|
jtulach@1334
|
394 |
* @return the set of available currencies. If there is no currency
|
jtulach@1334
|
395 |
* available in the runtime, the returned set is empty.
|
jtulach@1334
|
396 |
* @since 1.7
|
jtulach@1334
|
397 |
*/
|
jtulach@1334
|
398 |
public static Set<Currency> getAvailableCurrencies() {
|
jtulach@1334
|
399 |
synchronized(Currency.class) {
|
jtulach@1334
|
400 |
if (available == null) {
|
jtulach@1334
|
401 |
available = new HashSet<Currency>(256);
|
jtulach@1334
|
402 |
|
jtulach@1334
|
403 |
// Add simple currencies first
|
jtulach@1334
|
404 |
for (char c1 = 'A'; c1 <= 'Z'; c1 ++) {
|
jtulach@1334
|
405 |
for (char c2 = 'A'; c2 <= 'Z'; c2 ++) {
|
jtulach@1334
|
406 |
int tableEntry = getMainTableEntry(c1, c2);
|
jtulach@1334
|
407 |
if ((tableEntry & COUNTRY_TYPE_MASK) == SIMPLE_CASE_COUNTRY_MASK
|
jtulach@1334
|
408 |
&& tableEntry != INVALID_COUNTRY_ENTRY) {
|
jtulach@1334
|
409 |
char finalChar = (char) ((tableEntry & SIMPLE_CASE_COUNTRY_FINAL_CHAR_MASK) + 'A');
|
jtulach@1334
|
410 |
int defaultFractionDigits = (tableEntry & SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_MASK) >> SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT;
|
jtulach@1334
|
411 |
int numericCode = (tableEntry & NUMERIC_CODE_MASK) >> NUMERIC_CODE_SHIFT;
|
jtulach@1334
|
412 |
StringBuilder sb = new StringBuilder();
|
jtulach@1334
|
413 |
sb.append(c1);
|
jtulach@1334
|
414 |
sb.append(c2);
|
jtulach@1334
|
415 |
sb.append(finalChar);
|
jtulach@1334
|
416 |
available.add(getInstance(sb.toString(), defaultFractionDigits, numericCode));
|
jtulach@1334
|
417 |
}
|
jtulach@1334
|
418 |
}
|
jtulach@1334
|
419 |
}
|
jtulach@1334
|
420 |
|
jtulach@1334
|
421 |
// Now add other currencies
|
jtulach@1334
|
422 |
StringTokenizer st = new StringTokenizer(otherCurrencies, "-");
|
jtulach@1334
|
423 |
while (st.hasMoreElements()) {
|
jtulach@1334
|
424 |
available.add(getInstance((String)st.nextElement()));
|
jtulach@1334
|
425 |
}
|
jtulach@1334
|
426 |
}
|
jtulach@1334
|
427 |
}
|
jtulach@1334
|
428 |
|
jtulach@1334
|
429 |
return (Set<Currency>) available.clone();
|
jtulach@1334
|
430 |
}
|
jtulach@1334
|
431 |
|
jtulach@1334
|
432 |
/**
|
jtulach@1334
|
433 |
* Gets the ISO 4217 currency code of this currency.
|
jtulach@1334
|
434 |
*
|
jtulach@1334
|
435 |
* @return the ISO 4217 currency code of this currency.
|
jtulach@1334
|
436 |
*/
|
jtulach@1334
|
437 |
public String getCurrencyCode() {
|
jtulach@1334
|
438 |
return currencyCode;
|
jtulach@1334
|
439 |
}
|
jtulach@1334
|
440 |
|
jtulach@1334
|
441 |
/**
|
jtulach@1334
|
442 |
* Gets the symbol of this currency for the default locale.
|
jtulach@1334
|
443 |
* For example, for the US Dollar, the symbol is "$" if the default
|
jtulach@1334
|
444 |
* locale is the US, while for other locales it may be "US$". If no
|
jtulach@1334
|
445 |
* symbol can be determined, the ISO 4217 currency code is returned.
|
jtulach@1334
|
446 |
*
|
jtulach@1334
|
447 |
* @return the symbol of this currency for the default locale
|
jtulach@1334
|
448 |
*/
|
jtulach@1334
|
449 |
public String getSymbol() {
|
jtulach@1334
|
450 |
return getSymbol(Locale.getDefault(Locale.Category.DISPLAY));
|
jtulach@1334
|
451 |
}
|
jtulach@1334
|
452 |
|
jtulach@1334
|
453 |
/**
|
jtulach@1334
|
454 |
* Gets the symbol of this currency for the specified locale.
|
jtulach@1334
|
455 |
* For example, for the US Dollar, the symbol is "$" if the specified
|
jtulach@1334
|
456 |
* locale is the US, while for other locales it may be "US$". If no
|
jtulach@1334
|
457 |
* symbol can be determined, the ISO 4217 currency code is returned.
|
jtulach@1334
|
458 |
*
|
jtulach@1334
|
459 |
* @param locale the locale for which a display name for this currency is
|
jtulach@1334
|
460 |
* needed
|
jtulach@1334
|
461 |
* @return the symbol of this currency for the specified locale
|
jtulach@1334
|
462 |
* @exception NullPointerException if <code>locale</code> is null
|
jtulach@1334
|
463 |
*/
|
jtulach@1334
|
464 |
public String getSymbol(Locale locale) {
|
jtulach@1334
|
465 |
try {
|
jtulach@1334
|
466 |
// Check whether a provider can provide an implementation that's closer
|
jtulach@1334
|
467 |
// to the requested locale than what the Java runtime itself can provide.
|
jaroslav@1340
|
468 |
/*
|
jtulach@1334
|
469 |
LocaleServiceProviderPool pool =
|
jtulach@1334
|
470 |
LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);
|
jtulach@1334
|
471 |
|
jtulach@1334
|
472 |
if (pool.hasProviders()) {
|
jtulach@1334
|
473 |
// Assuming that all the country locales include necessary currency
|
jtulach@1334
|
474 |
// symbols in the Java runtime's resources, so there is no need to
|
jtulach@1334
|
475 |
// examine whether Java runtime's currency resource bundle is missing
|
jtulach@1334
|
476 |
// names. Therefore, no resource bundle is provided for calling this
|
jtulach@1334
|
477 |
// method.
|
jtulach@1334
|
478 |
String symbol = pool.getLocalizedObject(
|
jtulach@1334
|
479 |
CurrencyNameGetter.INSTANCE,
|
jtulach@1334
|
480 |
locale, (OpenListResourceBundle)null,
|
jtulach@1334
|
481 |
currencyCode, SYMBOL);
|
jtulach@1334
|
482 |
if (symbol != null) {
|
jtulach@1334
|
483 |
return symbol;
|
jtulach@1334
|
484 |
}
|
jtulach@1334
|
485 |
}
|
jaroslav@1340
|
486 |
*/
|
jaroslav@1340
|
487 |
ResourceBundle bundle = null; //LocaleData.getCurrencyNames(locale);
|
jtulach@1334
|
488 |
return bundle.getString(currencyCode);
|
jtulach@1334
|
489 |
} catch (MissingResourceException e) {
|
jtulach@1334
|
490 |
// use currency code as symbol of last resort
|
jtulach@1334
|
491 |
return currencyCode;
|
jtulach@1334
|
492 |
}
|
jtulach@1334
|
493 |
}
|
jtulach@1334
|
494 |
|
jtulach@1334
|
495 |
/**
|
jtulach@1334
|
496 |
* Gets the default number of fraction digits used with this currency.
|
jtulach@1334
|
497 |
* For example, the default number of fraction digits for the Euro is 2,
|
jtulach@1334
|
498 |
* while for the Japanese Yen it's 0.
|
jtulach@1334
|
499 |
* In the case of pseudo-currencies, such as IMF Special Drawing Rights,
|
jtulach@1334
|
500 |
* -1 is returned.
|
jtulach@1334
|
501 |
*
|
jtulach@1334
|
502 |
* @return the default number of fraction digits used with this currency
|
jtulach@1334
|
503 |
*/
|
jtulach@1334
|
504 |
public int getDefaultFractionDigits() {
|
jtulach@1334
|
505 |
return defaultFractionDigits;
|
jtulach@1334
|
506 |
}
|
jtulach@1334
|
507 |
|
jtulach@1334
|
508 |
/**
|
jtulach@1334
|
509 |
* Returns the ISO 4217 numeric code of this currency.
|
jtulach@1334
|
510 |
*
|
jtulach@1334
|
511 |
* @return the ISO 4217 numeric code of this currency
|
jtulach@1334
|
512 |
* @since 1.7
|
jtulach@1334
|
513 |
*/
|
jtulach@1334
|
514 |
public int getNumericCode() {
|
jtulach@1334
|
515 |
return numericCode;
|
jtulach@1334
|
516 |
}
|
jtulach@1334
|
517 |
|
jtulach@1334
|
518 |
/**
|
jtulach@1334
|
519 |
* Gets the name that is suitable for displaying this currency for
|
jtulach@1334
|
520 |
* the default locale. If there is no suitable display name found
|
jtulach@1334
|
521 |
* for the default locale, the ISO 4217 currency code is returned.
|
jtulach@1334
|
522 |
*
|
jtulach@1334
|
523 |
* @return the display name of this currency for the default locale
|
jtulach@1334
|
524 |
* @since 1.7
|
jtulach@1334
|
525 |
*/
|
jtulach@1334
|
526 |
public String getDisplayName() {
|
jtulach@1334
|
527 |
return getDisplayName(Locale.getDefault(Locale.Category.DISPLAY));
|
jtulach@1334
|
528 |
}
|
jtulach@1334
|
529 |
|
jtulach@1334
|
530 |
/**
|
jtulach@1334
|
531 |
* Gets the name that is suitable for displaying this currency for
|
jtulach@1334
|
532 |
* the specified locale. If there is no suitable display name found
|
jtulach@1334
|
533 |
* for the specified locale, the ISO 4217 currency code is returned.
|
jtulach@1334
|
534 |
*
|
jtulach@1334
|
535 |
* @param locale the locale for which a display name for this currency is
|
jtulach@1334
|
536 |
* needed
|
jtulach@1334
|
537 |
* @return the display name of this currency for the specified locale
|
jtulach@1334
|
538 |
* @exception NullPointerException if <code>locale</code> is null
|
jtulach@1334
|
539 |
* @since 1.7
|
jtulach@1334
|
540 |
*/
|
jtulach@1334
|
541 |
public String getDisplayName(Locale locale) {
|
jaroslav@1340
|
542 |
// try {
|
jaroslav@1340
|
543 |
// OpenListResourceBundle bundle = LocaleData.getCurrencyNames(locale);
|
jaroslav@1340
|
544 |
// String result = null;
|
jaroslav@1340
|
545 |
// String bundleKey = currencyCode.toLowerCase(Locale.ROOT);
|
jaroslav@1340
|
546 |
//
|
jaroslav@1340
|
547 |
// // Check whether a provider can provide an implementation that's closer
|
jaroslav@1340
|
548 |
// // to the requested locale than what the Java runtime itself can provide.
|
jaroslav@1340
|
549 |
// LocaleServiceProviderPool pool =
|
jaroslav@1340
|
550 |
// LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);
|
jaroslav@1340
|
551 |
// if (pool.hasProviders()) {
|
jaroslav@1340
|
552 |
// result = pool.getLocalizedObject(
|
jaroslav@1340
|
553 |
// CurrencyNameGetter.INSTANCE,
|
jaroslav@1340
|
554 |
// locale, bundleKey, bundle, currencyCode, DISPLAYNAME);
|
jaroslav@1340
|
555 |
// }
|
jaroslav@1340
|
556 |
//
|
jaroslav@1340
|
557 |
// if (result == null) {
|
jaroslav@1340
|
558 |
// result = bundle.getString(bundleKey);
|
jaroslav@1340
|
559 |
// }
|
jaroslav@1340
|
560 |
//
|
jaroslav@1340
|
561 |
// if (result != null) {
|
jaroslav@1340
|
562 |
// return result;
|
jaroslav@1340
|
563 |
// }
|
jaroslav@1340
|
564 |
// } catch (MissingResourceException e) {
|
jaroslav@1340
|
565 |
// // fall through
|
jaroslav@1340
|
566 |
// }
|
jtulach@1334
|
567 |
|
jtulach@1334
|
568 |
// use currency code as symbol of last resort
|
jtulach@1334
|
569 |
return currencyCode;
|
jtulach@1334
|
570 |
}
|
jtulach@1334
|
571 |
|
jtulach@1334
|
572 |
/**
|
jtulach@1334
|
573 |
* Returns the ISO 4217 currency code of this currency.
|
jtulach@1334
|
574 |
*
|
jtulach@1334
|
575 |
* @return the ISO 4217 currency code of this currency
|
jtulach@1334
|
576 |
*/
|
jtulach@1334
|
577 |
public String toString() {
|
jtulach@1334
|
578 |
return currencyCode;
|
jtulach@1334
|
579 |
}
|
jtulach@1334
|
580 |
|
jtulach@1334
|
581 |
/**
|
jtulach@1334
|
582 |
* Resolves instances being deserialized to a single instance per currency.
|
jtulach@1334
|
583 |
*/
|
jtulach@1334
|
584 |
private Object readResolve() {
|
jtulach@1334
|
585 |
return getInstance(currencyCode);
|
jtulach@1334
|
586 |
}
|
jtulach@1334
|
587 |
|
jtulach@1334
|
588 |
/**
|
jtulach@1334
|
589 |
* Gets the main table entry for the country whose country code consists
|
jtulach@1334
|
590 |
* of char1 and char2.
|
jtulach@1334
|
591 |
*/
|
jtulach@1334
|
592 |
private static int getMainTableEntry(char char1, char char2) {
|
jtulach@1334
|
593 |
if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') {
|
jtulach@1334
|
594 |
throw new IllegalArgumentException();
|
jtulach@1334
|
595 |
}
|
jtulach@1334
|
596 |
return mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')];
|
jtulach@1334
|
597 |
}
|
jtulach@1334
|
598 |
|
jtulach@1334
|
599 |
/**
|
jtulach@1334
|
600 |
* Sets the main table entry for the country whose country code consists
|
jtulach@1334
|
601 |
* of char1 and char2.
|
jtulach@1334
|
602 |
*/
|
jtulach@1334
|
603 |
private static void setMainTableEntry(char char1, char char2, int entry) {
|
jtulach@1334
|
604 |
if (char1 < 'A' || char1 > 'Z' || char2 < 'A' || char2 > 'Z') {
|
jtulach@1334
|
605 |
throw new IllegalArgumentException();
|
jtulach@1334
|
606 |
}
|
jtulach@1334
|
607 |
mainTable[(char1 - 'A') * A_TO_Z + (char2 - 'A')] = entry;
|
jtulach@1334
|
608 |
}
|
jtulach@1334
|
609 |
|
jtulach@1334
|
610 |
/**
|
jtulach@1334
|
611 |
* Obtains a localized currency names from a CurrencyNameProvider
|
jtulach@1334
|
612 |
* implementation.
|
jtulach@1334
|
613 |
private static class CurrencyNameGetter
|
jtulach@1334
|
614 |
implements LocaleServiceProviderPool.LocalizedObjectGetter<CurrencyNameProvider,
|
jtulach@1334
|
615 |
String> {
|
jtulach@1334
|
616 |
private static final CurrencyNameGetter INSTANCE = new CurrencyNameGetter();
|
jtulach@1334
|
617 |
|
jtulach@1334
|
618 |
public String getObject(CurrencyNameProvider currencyNameProvider,
|
jtulach@1334
|
619 |
Locale locale,
|
jtulach@1334
|
620 |
String key,
|
jtulach@1334
|
621 |
Object... params) {
|
jtulach@1334
|
622 |
assert params.length == 1;
|
jtulach@1334
|
623 |
int type = (Integer)params[0];
|
jtulach@1334
|
624 |
|
jtulach@1334
|
625 |
switch(type) {
|
jtulach@1334
|
626 |
case SYMBOL:
|
jtulach@1334
|
627 |
return currencyNameProvider.getSymbol(key, locale);
|
jtulach@1334
|
628 |
case DISPLAYNAME:
|
jtulach@1334
|
629 |
return currencyNameProvider.getDisplayName(key, locale);
|
jtulach@1334
|
630 |
default:
|
jtulach@1334
|
631 |
assert false; // shouldn't happen
|
jtulach@1334
|
632 |
}
|
jtulach@1334
|
633 |
|
jtulach@1334
|
634 |
return null;
|
jtulach@1334
|
635 |
}
|
jtulach@1334
|
636 |
}
|
jaroslav@1340
|
637 |
*/
|
jtulach@1334
|
638 |
|
jtulach@1334
|
639 |
private static int[] readIntArray(DataInputStream dis, int count) throws IOException {
|
jtulach@1334
|
640 |
int[] ret = new int[count];
|
jtulach@1334
|
641 |
for (int i = 0; i < count; i++) {
|
jtulach@1334
|
642 |
ret[i] = dis.readInt();
|
jtulach@1334
|
643 |
}
|
jtulach@1334
|
644 |
|
jtulach@1334
|
645 |
return ret;
|
jtulach@1334
|
646 |
}
|
jtulach@1334
|
647 |
|
jtulach@1334
|
648 |
private static long[] readLongArray(DataInputStream dis, int count) throws IOException {
|
jtulach@1334
|
649 |
long[] ret = new long[count];
|
jtulach@1334
|
650 |
for (int i = 0; i < count; i++) {
|
jtulach@1334
|
651 |
ret[i] = dis.readLong();
|
jtulach@1334
|
652 |
}
|
jtulach@1334
|
653 |
|
jtulach@1334
|
654 |
return ret;
|
jtulach@1334
|
655 |
}
|
jtulach@1334
|
656 |
|
jtulach@1334
|
657 |
private static String[] readStringArray(DataInputStream dis, int count) throws IOException {
|
jtulach@1334
|
658 |
String[] ret = new String[count];
|
jtulach@1334
|
659 |
for (int i = 0; i < count; i++) {
|
jtulach@1334
|
660 |
ret[i] = dis.readUTF();
|
jtulach@1334
|
661 |
}
|
jtulach@1334
|
662 |
|
jtulach@1334
|
663 |
return ret;
|
jtulach@1334
|
664 |
}
|
jtulach@1334
|
665 |
|
jtulach@1334
|
666 |
/**
|
jtulach@1334
|
667 |
* Replaces currency data found in the currencydata.properties file
|
jtulach@1334
|
668 |
*
|
jtulach@1334
|
669 |
* @param pattern regex pattern for the properties
|
jtulach@1334
|
670 |
* @param ctry country code
|
jtulach@1334
|
671 |
* @param data currency data. This is a comma separated string that
|
jtulach@1334
|
672 |
* consists of "three-letter alphabet code", "three-digit numeric code",
|
jtulach@1334
|
673 |
* and "one-digit (0,1,2, or 3) default fraction digit".
|
jtulach@1334
|
674 |
* For example, "JPZ,392,0".
|
jtulach@1334
|
675 |
* @throws
|
jtulach@1334
|
676 |
private static void replaceCurrencyData(Pattern pattern, String ctry, String curdata) {
|
jtulach@1334
|
677 |
|
jtulach@1334
|
678 |
if (ctry.length() != 2) {
|
jtulach@1334
|
679 |
// ignore invalid country code
|
jtulach@1334
|
680 |
String message = new StringBuilder()
|
jtulach@1334
|
681 |
.append("The entry in currency.properties for ")
|
jtulach@1334
|
682 |
.append(ctry).append(" is ignored because of the invalid country code.")
|
jtulach@1334
|
683 |
.toString();
|
jtulach@1334
|
684 |
info(message, null);
|
jtulach@1334
|
685 |
return;
|
jtulach@1334
|
686 |
}
|
jtulach@1334
|
687 |
|
jtulach@1334
|
688 |
Matcher m = pattern.matcher(curdata);
|
jtulach@1334
|
689 |
if (!m.find()) {
|
jtulach@1334
|
690 |
// format is not recognized. ignore the data
|
jtulach@1334
|
691 |
String message = new StringBuilder()
|
jtulach@1334
|
692 |
.append("The entry in currency.properties for ")
|
jtulach@1334
|
693 |
.append(ctry)
|
jtulach@1334
|
694 |
.append(" is ignored because the value format is not recognized.")
|
jtulach@1334
|
695 |
.toString();
|
jtulach@1334
|
696 |
info(message, null);
|
jtulach@1334
|
697 |
return;
|
jtulach@1334
|
698 |
}
|
jtulach@1334
|
699 |
|
jtulach@1334
|
700 |
String code = m.group(1);
|
jtulach@1334
|
701 |
int numeric = Integer.parseInt(m.group(2));
|
jtulach@1334
|
702 |
int fraction = Integer.parseInt(m.group(3));
|
jtulach@1334
|
703 |
int entry = numeric << NUMERIC_CODE_SHIFT;
|
jtulach@1334
|
704 |
|
jtulach@1334
|
705 |
int index;
|
jtulach@1334
|
706 |
for (index = 0; index < scOldCurrencies.length; index++) {
|
jtulach@1334
|
707 |
if (scOldCurrencies[index].equals(code)) {
|
jtulach@1334
|
708 |
break;
|
jtulach@1334
|
709 |
}
|
jtulach@1334
|
710 |
}
|
jtulach@1334
|
711 |
|
jtulach@1334
|
712 |
if (index == scOldCurrencies.length) {
|
jtulach@1334
|
713 |
// simple case
|
jtulach@1334
|
714 |
entry |= (fraction << SIMPLE_CASE_COUNTRY_DEFAULT_DIGITS_SHIFT) |
|
jtulach@1334
|
715 |
(code.charAt(2) - 'A');
|
jtulach@1334
|
716 |
} else {
|
jtulach@1334
|
717 |
// special case
|
jtulach@1334
|
718 |
entry |= SPECIAL_CASE_COUNTRY_MASK |
|
jtulach@1334
|
719 |
(index + SPECIAL_CASE_COUNTRY_INDEX_DELTA);
|
jtulach@1334
|
720 |
}
|
jtulach@1334
|
721 |
setMainTableEntry(ctry.charAt(0), ctry.charAt(1), entry);
|
jtulach@1334
|
722 |
}
|
jaroslav@1340
|
723 |
*/
|
jtulach@1334
|
724 |
|
jtulach@1334
|
725 |
private static void info(String message, Throwable t) {
|
jaroslav@1340
|
726 |
Logger logger = Logger.getLogger("java.util.Currency");
|
jaroslav@1340
|
727 |
if (logger.isLoggable(Level.INFO)) {
|
jtulach@1334
|
728 |
if (t != null) {
|
jaroslav@1340
|
729 |
logger.log(Level.INFO, message, t);
|
jtulach@1334
|
730 |
} else {
|
jtulach@1334
|
731 |
logger.info(message);
|
jtulach@1334
|
732 |
}
|
jtulach@1334
|
733 |
}
|
jtulach@1334
|
734 |
}
|
jtulach@1334
|
735 |
}
|