--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.base/share/classes/java/time/format/DecimalStyle.java Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,381 @@
+/*
+ * Copyright (c) 2012, 2013, Oracle and/or its affiliates. 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. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Copyright (c) 2008-2012, Stephen Colebourne & Michael Nascimento Santos
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * * Neither the name of JSR-310 nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package java.time.format;
+
+import java.text.DecimalFormatSymbols;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Locale;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+/**
+ * Localized decimal style used in date and time formatting.
+ * <p>
+ * A significant part of dealing with dates and times is the localization.
+ * This class acts as a central point for accessing the information.
+ *
+ * @implSpec
+ * This class is immutable and thread-safe.
+ *
+ * @since 1.8
+ */
+public final class DecimalStyle {
+
+ /**
+ * The standard set of non-localized decimal style symbols.
+ * <p>
+ * This uses standard ASCII characters for zero, positive, negative and a dot for the decimal point.
+ */
+ public static final DecimalStyle STANDARD = new DecimalStyle('0', '+', '-', '.');
+ /**
+ * The cache of DecimalStyle instances.
+ */
+ private static final ConcurrentMap<Locale, DecimalStyle> CACHE = new ConcurrentHashMap<>(16, 0.75f, 2);
+
+ /**
+ * The zero digit.
+ */
+ private final char zeroDigit;
+ /**
+ * The positive sign.
+ */
+ private final char positiveSign;
+ /**
+ * The negative sign.
+ */
+ private final char negativeSign;
+ /**
+ * The decimal separator.
+ */
+ private final char decimalSeparator;
+
+ //-----------------------------------------------------------------------
+ /**
+ * Lists all the locales that are supported.
+ * <p>
+ * The locale 'en_US' will always be present.
+ *
+ * @return a Set of Locales for which localization is supported
+ */
+ public static Set<Locale> getAvailableLocales() {
+ Locale[] l = DecimalFormatSymbols.getAvailableLocales();
+ Set<Locale> locales = new HashSet<>(l.length);
+ Collections.addAll(locales, l);
+ return locales;
+ }
+
+ /**
+ * Obtains the DecimalStyle for the default
+ * {@link java.util.Locale.Category#FORMAT FORMAT} locale.
+ * <p>
+ * This method provides access to locale sensitive decimal style symbols.
+ * <p>
+ * This is equivalent to calling
+ * {@link #of(Locale)
+ * of(Locale.getDefault(Locale.Category.FORMAT))}.
+ *
+ * @see java.util.Locale.Category#FORMAT
+ * @return the decimal style, not null
+ */
+ public static DecimalStyle ofDefaultLocale() {
+ return of(Locale.getDefault(Locale.Category.FORMAT));
+ }
+
+ /**
+ * Obtains the DecimalStyle for the specified locale.
+ * <p>
+ * This method provides access to locale sensitive decimal style symbols.
+ *
+ * @param locale the locale, not null
+ * @return the decimal style, not null
+ */
+ public static DecimalStyle of(Locale locale) {
+ Objects.requireNonNull(locale, "locale");
+ DecimalStyle info = CACHE.get(locale);
+ if (info == null) {
+ info = create(locale);
+ CACHE.putIfAbsent(locale, info);
+ info = CACHE.get(locale);
+ }
+ return info;
+ }
+
+ private static DecimalStyle create(Locale locale) {
+ DecimalFormatSymbols oldSymbols = DecimalFormatSymbols.getInstance(locale);
+ char zeroDigit = oldSymbols.getZeroDigit();
+ char positiveSign = '+';
+ char negativeSign = oldSymbols.getMinusSign();
+ char decimalSeparator = oldSymbols.getDecimalSeparator();
+ if (zeroDigit == '0' && negativeSign == '-' && decimalSeparator == '.') {
+ return STANDARD;
+ }
+ return new DecimalStyle(zeroDigit, positiveSign, negativeSign, decimalSeparator);
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Restricted constructor.
+ *
+ * @param zeroChar the character to use for the digit of zero
+ * @param positiveSignChar the character to use for the positive sign
+ * @param negativeSignChar the character to use for the negative sign
+ * @param decimalPointChar the character to use for the decimal point
+ */
+ private DecimalStyle(char zeroChar, char positiveSignChar, char negativeSignChar, char decimalPointChar) {
+ this.zeroDigit = zeroChar;
+ this.positiveSign = positiveSignChar;
+ this.negativeSign = negativeSignChar;
+ this.decimalSeparator = decimalPointChar;
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Gets the character that represents zero.
+ * <p>
+ * The character used to represent digits may vary by culture.
+ * This method specifies the zero character to use, which implies the characters for one to nine.
+ *
+ * @return the character for zero
+ */
+ public char getZeroDigit() {
+ return zeroDigit;
+ }
+
+ /**
+ * Returns a copy of the info with a new character that represents zero.
+ * <p>
+ * The character used to represent digits may vary by culture.
+ * This method specifies the zero character to use, which implies the characters for one to nine.
+ *
+ * @param zeroDigit the character for zero
+ * @return a copy with a new character that represents zero, not null
+
+ */
+ public DecimalStyle withZeroDigit(char zeroDigit) {
+ if (zeroDigit == this.zeroDigit) {
+ return this;
+ }
+ return new DecimalStyle(zeroDigit, positiveSign, negativeSign, decimalSeparator);
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Gets the character that represents the positive sign.
+ * <p>
+ * The character used to represent a positive number may vary by culture.
+ * This method specifies the character to use.
+ *
+ * @return the character for the positive sign
+ */
+ public char getPositiveSign() {
+ return positiveSign;
+ }
+
+ /**
+ * Returns a copy of the info with a new character that represents the positive sign.
+ * <p>
+ * The character used to represent a positive number may vary by culture.
+ * This method specifies the character to use.
+ *
+ * @param positiveSign the character for the positive sign
+ * @return a copy with a new character that represents the positive sign, not null
+ */
+ public DecimalStyle withPositiveSign(char positiveSign) {
+ if (positiveSign == this.positiveSign) {
+ return this;
+ }
+ return new DecimalStyle(zeroDigit, positiveSign, negativeSign, decimalSeparator);
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Gets the character that represents the negative sign.
+ * <p>
+ * The character used to represent a negative number may vary by culture.
+ * This method specifies the character to use.
+ *
+ * @return the character for the negative sign
+ */
+ public char getNegativeSign() {
+ return negativeSign;
+ }
+
+ /**
+ * Returns a copy of the info with a new character that represents the negative sign.
+ * <p>
+ * The character used to represent a negative number may vary by culture.
+ * This method specifies the character to use.
+ *
+ * @param negativeSign the character for the negative sign
+ * @return a copy with a new character that represents the negative sign, not null
+ */
+ public DecimalStyle withNegativeSign(char negativeSign) {
+ if (negativeSign == this.negativeSign) {
+ return this;
+ }
+ return new DecimalStyle(zeroDigit, positiveSign, negativeSign, decimalSeparator);
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Gets the character that represents the decimal point.
+ * <p>
+ * The character used to represent a decimal point may vary by culture.
+ * This method specifies the character to use.
+ *
+ * @return the character for the decimal point
+ */
+ public char getDecimalSeparator() {
+ return decimalSeparator;
+ }
+
+ /**
+ * Returns a copy of the info with a new character that represents the decimal point.
+ * <p>
+ * The character used to represent a decimal point may vary by culture.
+ * This method specifies the character to use.
+ *
+ * @param decimalSeparator the character for the decimal point
+ * @return a copy with a new character that represents the decimal point, not null
+ */
+ public DecimalStyle withDecimalSeparator(char decimalSeparator) {
+ if (decimalSeparator == this.decimalSeparator) {
+ return this;
+ }
+ return new DecimalStyle(zeroDigit, positiveSign, negativeSign, decimalSeparator);
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Checks whether the character is a digit, based on the currently set zero character.
+ *
+ * @param ch the character to check
+ * @return the value, 0 to 9, of the character, or -1 if not a digit
+ */
+ int convertToDigit(char ch) {
+ int val = ch - zeroDigit;
+ return (val >= 0 && val <= 9) ? val : -1;
+ }
+
+ /**
+ * Converts the input numeric text to the internationalized form using the zero character.
+ *
+ * @param numericText the text, consisting of digits 0 to 9, to convert, not null
+ * @return the internationalized text, not null
+ */
+ String convertNumberToI18N(String numericText) {
+ if (zeroDigit == '0') {
+ return numericText;
+ }
+ int diff = zeroDigit - '0';
+ char[] array = numericText.toCharArray();
+ for (int i = 0; i < array.length; i++) {
+ array[i] = (char) (array[i] + diff);
+ }
+ return new String(array);
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Checks if this DecimalStyle is equal to another DecimalStyle.
+ *
+ * @param obj the object to check, null returns false
+ * @return true if this is equal to the other date
+ */
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof DecimalStyle) {
+ DecimalStyle other = (DecimalStyle) obj;
+ return (zeroDigit == other.zeroDigit && positiveSign == other.positiveSign &&
+ negativeSign == other.negativeSign && decimalSeparator == other.decimalSeparator);
+ }
+ return false;
+ }
+
+ /**
+ * A hash code for this DecimalStyle.
+ *
+ * @return a suitable hash code
+ */
+ @Override
+ public int hashCode() {
+ return zeroDigit + positiveSign + negativeSign + decimalSeparator;
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Returns a string describing this DecimalStyle.
+ *
+ * @return a string description, not null
+ */
+ @Override
+ public String toString() {
+ return "DecimalStyle[" + zeroDigit + positiveSign + negativeSign + decimalSeparator + "]";
+ }
+
+}