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/*
*******************************************************************************
* Copyright (C) 1996-2012, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
package com.ibm.icu.text;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.math.BigInteger;
import java.text.FieldPosition;
import java.text.Format;
import java.text.ParseException;
import java.text.ParsePosition;
import java.util.Collections;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.Set;
import com.ibm.icu.impl.ICUResourceBundle;
import com.ibm.icu.util.Currency;
import com.ibm.icu.util.CurrencyAmount;
import com.ibm.icu.util.ULocale;
import com.ibm.icu.util.ULocale.Category;
import com.ibm.icu.util.UResourceBundle;
/**
* {@icuenhanced java.text.NumberFormat}.{@icu _usage_}
*
* NumberFormat is the abstract base class for all number
* formats. This class provides the interface for formatting and parsing
* numbers. NumberFormat also provides methods for determining
* which locales have number formats, and what their names are.
*
* NumberFormat helps you to format and parse numbers for any locale.
* Your code can be completely independent of the locale conventions for
* decimal points, thousands-separators, or even the particular decimal
* digits used, or whether the number format is even decimal.
*
*
* To format a number for the current Locale, use one of the factory
* class methods:
*
*
* myString = NumberFormat.getInstance().format(myNumber);
*
*
* If you are formatting multiple numbers, it is
* more efficient to get the format and use it multiple times so that
* the system doesn't have to fetch the information about the local
* language and country conventions multiple times.
*
*
* NumberFormat nf = NumberFormat.getInstance();
* for (int i = 0; i < a.length; ++i) {
* output.println(nf.format(myNumber[i]) + "; ");
* }
*
*
* To format a number for a different Locale, specify it in the
* call to getInstance.
*
*
* NumberFormat nf = NumberFormat.getInstance(Locale.FRENCH);
*
*
* You can also use a NumberFormat to parse numbers:
*
*
* myNumber = nf.parse(myString);
*
*
* Use getInstance or getNumberInstance to get the
* normal number format. Use getIntegerInstance to get an
* integer number format. Use getCurrencyInstance to get the
* currency number format. And use getPercentInstance to get a
* format for displaying percentages. Some factory methods are found within
* subclasses of NumberFormat. With this format, a fraction like
* 0.53 is displayed as 53%.
*
*
* Starting from ICU 4.2, you can use getInstance() by passing in a 'style'
* as parameter to get the correct instance.
* For example,
* use getInstance(...NUMBERSTYLE) to get the normal number format,
* getInstance(...PERCENTSTYLE) to get a format for displaying percentage,
* getInstance(...SCIENTIFICSTYLE) to get a format for displaying scientific number,
* getInstance(...INTEGERSTYLE) to get an integer number format,
* getInstance(...CURRENCYSTYLE) to get the currency number format,
* in which the currency is represented by its symbol, for example, "$3.00".
* getInstance(...ISOCURRENCYSTYLE) to get the currency number format,
* in which the currency is represented by its ISO code, for example "USD3.00".
* getInstance(...PLURALCURRENCYSTYLE) to get the currency number format,
* in which the currency is represented by its full name in plural format,
* for example, "3.00 US dollars" or "1.00 US dollar".
*
*
*
* You can also control the display of numbers with such methods as
* setMinimumFractionDigits.
* If you want even more control over the format or parsing,
* or want to give your users more control,
* you can try casting the NumberFormat you get from the factory methods
* to a DecimalFormat. This will work for the vast majority
* of locales; just remember to put it in a try block in case you
* encounter an unusual one.
*
*
* NumberFormat is designed such that some controls
* work for formatting and others work for parsing. The following is
* the detailed description for each these control methods,
*
* setParseIntegerOnly : only affects parsing, e.g.
* if true, "3456.78" -> 3456 (and leaves the parse position just after '6')
* if false, "3456.78" -> 3456.78 (and leaves the parse position just after '8')
* This is independent of formatting. If you want to not show a decimal point
* where there might be no digits after the decimal point, use
* setDecimalSeparatorAlwaysShown on DecimalFormat.
*
* You can also use forms of the parse and format
* methods with ParsePosition and FieldPosition to
* allow you to:
*
* - progressively parse through pieces of a string
*
- align the decimal point and other areas
*
* For example, you can align numbers in two ways:
*
* - If you are using a monospaced font with spacing for alignment,
* you can pass the
FieldPosition in your format call, with
* field = INTEGER_FIELD. On output,
* getEndIndex will be set to the offset between the
* last character of the integer and the decimal. Add
* (desiredSpaceCount - getEndIndex) spaces at the front of the string.
*
* - If you are using proportional fonts,
* instead of padding with spaces, measure the width
* of the string in pixels from the start to
getEndIndex.
* Then move the pen by
* (desiredPixelWidth - widthToAlignmentPoint) before drawing the text.
* It also works where there is no decimal, but possibly additional
* characters at the end, e.g., with parentheses in negative
* numbers: "(12)" for -12.
*
*
* Synchronization
*
* Number formats are generally not synchronized. It is recommended to create
* separate format instances for each thread. If multiple threads access a format
* concurrently, it must be synchronized externally.
*
*
*
DecimalFormat
* DecimalFormat is the concrete implementation of NumberFormat, and the
* NumberFormat API is essentially an abstraction from DecimalFormat's API.
* Refer to DecimalFormat for more information about this API.
*
* see DecimalFormat
* see java.text.ChoiceFormat
* @author Mark Davis
* @author Helena Shih
* @author Alan Liu
* @stable ICU 2.0
*/
public abstract class NumberFormat extends UFormat {
/**
* {@icu} Constant to specify normal number style of format.
* @stable ICU 4.2
*/
public static final int NUMBERSTYLE = 0;
/**
* {@icu} Constant to specify currency style of format which uses currency symbol
* to represent currency, for example: "$3.00".
* @stable ICU 4.2
*/
public static final int CURRENCYSTYLE = 1;
/**
* {@icu} Constant to specify a style of format to display percent.
* @stable ICU 4.2
*/
public static final int PERCENTSTYLE = 2;
/**
* {@icu} Constant to specify a style of format to display scientific number.
* @stable ICU 4.2
*/
public static final int SCIENTIFICSTYLE = 3;
/**
* {@icu} Constant to specify a integer number style format.
* @stable ICU 4.2
*/
public static final int INTEGERSTYLE = 4;
/**
* {@icu} Constant to specify currency style of format which uses currency
* ISO code to represent currency, for example: "USD3.00".
* @stable ICU 4.2
*/
public static final int ISOCURRENCYSTYLE = 5;
/**
* {@icu} Constant to specify currency style of format which uses currency
* long name with plural format to represent currency, for example,
* "3.00 US Dollars".
* @stable ICU 4.2
*/
public static final int PLURALCURRENCYSTYLE = 6;
/**
* Field constant used to construct a FieldPosition object. Signifies that
* the position of the integer part of a formatted number should be returned.
* @see java.text.FieldPosition
* @stable ICU 2.0
*/
public static final int INTEGER_FIELD = 0;
/**
* Field constant used to construct a FieldPosition object. Signifies that
* the position of the fraction part of a formatted number should be returned.
* @see java.text.FieldPosition
* @stable ICU 2.0
*/
public static final int FRACTION_FIELD = 1;
/**
* Formats a number and appends the resulting text to the given string buffer.
* {@icunote} recognizes BigInteger
* and BigDecimal objects.
* @see java.text.Format#format(Object, StringBuffer, FieldPosition)
* @stable ICU 2.0
*/
@Override
public StringBuffer format(Object number,
StringBuffer toAppendTo,
FieldPosition pos) {
if (number instanceof Long) {
return format(((Long)number).longValue(), toAppendTo, pos);
} else if (number instanceof BigInteger) {
return format((BigInteger) number, toAppendTo, pos);
} else if (number instanceof java.math.BigDecimal) {
return format((java.math.BigDecimal) number, toAppendTo, pos);
} else if (number instanceof com.ibm.icu.math.BigDecimal) {
return format((com.ibm.icu.math.BigDecimal) number, toAppendTo, pos);
} else if (number instanceof CurrencyAmount) {
return format((CurrencyAmount)number, toAppendTo, pos);
} else if (number instanceof Number) {
return format(((Number)number).doubleValue(), toAppendTo, pos);
} else {
throw new IllegalArgumentException("Cannot format given Object as a Number");
}
}
/**
* Parses text from a string to produce a number.
* @param source the String to parse
* @param parsePosition the position at which to start the parse
* @return the parsed number, or null
* @see java.text.NumberFormat#parseObject(String, ParsePosition)
* @stable ICU 2.0
*/
@Override
public final Object parseObject(String source,
ParsePosition parsePosition) {
return parse(source, parsePosition);
}
/**
* Specialization of format.
* @see java.text.Format#format(Object)
* @stable ICU 2.0
*/
public final String format(double number) {
return format(number,new StringBuffer(),
new FieldPosition(0)).toString();
}
/**
* Specialization of format.
* @see java.text.Format#format(Object)
* @stable ICU 2.0
*/
public final String format(long number) {
StringBuffer buf = new StringBuffer(19);
FieldPosition pos = new FieldPosition(0);
format(number, buf, pos);
return buf.toString();
}
/**
* {@icu} Convenience method to format a BigInteger.
* @stable ICU 2.0
*/
public final String format(BigInteger number) {
return format(number, new StringBuffer(),
new FieldPosition(0)).toString();
}
/**
* Convenience method to format a BigDecimal.
* @stable ICU 2.0
*/
public final String format(java.math.BigDecimal number) {
return format(number, new StringBuffer(),
new FieldPosition(0)).toString();
}
/**
* {@icu} Convenience method to format an ICU BigDecimal.
* @stable ICU 2.0
*/
public final String format(com.ibm.icu.math.BigDecimal number) {
return format(number, new StringBuffer(),
new FieldPosition(0)).toString();
}
/**
* {@icu} Convenience method to format a CurrencyAmount.
* @stable ICU 3.0
*/
public final String format(CurrencyAmount currAmt) {
return format(currAmt, new StringBuffer(),
new FieldPosition(0)).toString();
}
/**
* Specialization of format.
* @see java.text.Format#format(Object, StringBuffer, FieldPosition)
* @stable ICU 2.0
*/
public abstract StringBuffer format(double number,
StringBuffer toAppendTo,
FieldPosition pos);
/**
* Specialization of format.
* @see java.text.Format#format(Object, StringBuffer, FieldPosition)
* @stable ICU 2.0
*/
public abstract StringBuffer format(long number,
StringBuffer toAppendTo,
FieldPosition pos);
/**
* {@icu} Formats a BigInteger. Specialization of format.
* @see java.text.Format#format(Object, StringBuffer, FieldPosition)
* @stable ICU 2.0
*/
public abstract StringBuffer format(BigInteger number,
StringBuffer toAppendTo,
FieldPosition pos);
/**
* {@icu} Formats a BigDecimal. Specialization of format.
* @see java.text.Format#format(Object, StringBuffer, FieldPosition)
* @stable ICU 2.0
*/
public abstract StringBuffer format(java.math.BigDecimal number,
StringBuffer toAppendTo,
FieldPosition pos);
/**
* {@icu} Formats an ICU BigDecimal. Specialization of format.
* @see java.text.Format#format(Object, StringBuffer, FieldPosition)
* @stable ICU 2.0
*/
public abstract StringBuffer format(com.ibm.icu.math.BigDecimal number,
StringBuffer toAppendTo,
FieldPosition pos);
/**
* {@icu} Formats a CurrencyAmount. Specialization of format.
* @see java.text.Format#format(Object, StringBuffer, FieldPosition)
* @stable ICU 3.0
*/
public StringBuffer format(CurrencyAmount currAmt,
StringBuffer toAppendTo,
FieldPosition pos) {
// Default implementation -- subclasses may override
Currency save = getCurrency(), curr = currAmt.getCurrency();
boolean same = curr.equals(save);
if (!same) setCurrency(curr);
format(currAmt.getNumber(), toAppendTo, pos);
if (!same) setCurrency(save);
return toAppendTo;
}
/**
* Returns a Long if possible (e.g., within the range [Long.MIN_VALUE,
* Long.MAX_VALUE] and with no decimals), otherwise a Double.
* If IntegerOnly is set, will stop at a decimal
* point (or equivalent; e.g., for rational numbers "1 2/3", will stop
* after the 1).
* Does not throw an exception; if no object can be parsed, index is
* unchanged!
* @see #isParseIntegerOnly
* @see java.text.Format#parseObject(String, ParsePosition)
* @stable ICU 2.0
*/
public abstract Number parse(String text, ParsePosition parsePosition);
/**
* Parses text from the beginning of the given string to produce a number.
* The method might not use the entire text of the given string.
*
* @param text A String whose beginning should be parsed.
* @return A Number parsed from the string.
* @throws ParseException if the beginning of the specified string
* cannot be parsed.
* @see #format
* @stable ICU 2.0
*/
//Bug 4375399 [Richard/GCL]
public Number parse(String text) throws ParseException {
ParsePosition parsePosition = new ParsePosition(0);
Number result = parse(text, parsePosition);
if (parsePosition.getIndex() == 0) {
throw new ParseException("Unparseable number: \"" + text + '"',
parsePosition.getErrorIndex());
}
return result;
}
/**
* Parses text from the given string as a CurrencyAmount. Unlike
* the parse() method, this method will attempt to parse a generic
* currency name, searching for a match of this object's locale's
* currency display names, or for a 3-letter ISO currency code.
* This method will fail if this format is not a currency format,
* that is, if it does not contain the currency pattern symbol
* (U+00A4) in its prefix or suffix.
*
* @param text the text to parse
* @param pos input-output position; on input, the position within
* text to match; must have 0 <= pos.getIndex() < text.length();
* on output, the position after the last matched character. If
* the parse fails, the position in unchanged upon output.
* @return a CurrencyAmount, or null upon failure
* @draft ICU 49
* @provisional This API might change or be removed in a future release.
*/
public CurrencyAmount parseCurrency(CharSequence text, ParsePosition pos) {
///CLOVER:OFF
// Default implementation only -- subclasses should override
Number n = parse(text.toString(), pos);
return n == null ? null : new CurrencyAmount(n, getEffectiveCurrency());
///CLOVER:ON
}
/**
* Returns true if this format will parse numbers as integers only.
* For example in the English locale, with ParseIntegerOnly true, the
* string "1234." would be parsed as the integer value 1234 and parsing
* would stop at the "." character. The decimal separator accepted
* by the parse operation is locale-dependent and determined by the
* subclass.
* @return true if this will parse integers only
* @stable ICU 2.0
*/
public boolean isParseIntegerOnly() {
return parseIntegerOnly;
}
/**
* Sets whether or not numbers should be parsed as integers only.
* @param value true if this should parse integers only
* @see #isParseIntegerOnly
* @stable ICU 2.0
*/
public void setParseIntegerOnly(boolean value) {
parseIntegerOnly = value;
}
/**
* {@icu} Sets whether strict parsing is in effect. When this is true, the
* following conditions cause a parse failure (examples use the pattern "#,##0.#"):
* - Leading or doubled grouping separators
* ',123' and '1,,234" fail
* - Groups of incorrect length when grouping is used
* '1,23' and '1234,567' fail, but '1234' passes
* - Grouping separators used in numbers followed by exponents
* '1,234E5' fails, but '1234E5' and '1,234E' pass ('E' is not an exponent when
* not followed by a number)
*
* When strict parsing is off, all grouping separators are ignored.
* This is the default behavior.
* @param value True to enable strict parsing. Default is false.
* @see #isParseStrict
* @stable ICU 3.6
*/
public void setParseStrict(boolean value) {
parseStrict = value;
}
/**
* {@icu} Returns whether strict parsing is in effect.
* @return true if strict parsing is in effect
* @see #setParseStrict
* @stable ICU 3.6
*/
public boolean isParseStrict() {
return parseStrict;
}
//============== Locale Stuff =====================
/**
* Returns the default number format for the current default FORMAT locale.
* The default format is one of the styles provided by the other
* factory methods: getNumberInstance, getIntegerInstance,
* getCurrencyInstance or getPercentInstance.
* Exactly which one is locale-dependent.
* @see Category#FORMAT
* @stable ICU 2.0
*/
//Bug 4408066 [Richard/GCL]
public final static NumberFormat getInstance() {
return getInstance(ULocale.getDefault(Category.FORMAT), NUMBERSTYLE);
}
/**
* Returns the default number format for the specified locale.
* The default format is one of the styles provided by the other
* factory methods: getNumberInstance, getCurrencyInstance or getPercentInstance.
* Exactly which one is locale-dependent.
* @stable ICU 2.0
*/
public static NumberFormat getInstance(Locale inLocale) {
return getInstance(ULocale.forLocale(inLocale), NUMBERSTYLE);
}
/**
* {@icu} Returns the default number format for the specified locale.
* The default format is one of the styles provided by the other
* factory methods: getNumberInstance, getCurrencyInstance or getPercentInstance.
* Exactly which one is locale-dependent.
* @stable ICU 3.2
*/
public static NumberFormat getInstance(ULocale inLocale) {
return getInstance(inLocale, NUMBERSTYLE);
}
/**
* {@icu} Returns a specific style number format for default FORMAT locale.
* @param style number format style
* @see Category#FORMAT
* @stable ICU 4.2
*/
public final static NumberFormat getInstance(int style) {
return getInstance(ULocale.getDefault(Category.FORMAT), style);
}
/**
* {@icu} Returns a specific style number format for a specific locale.
* @param inLocale the specific locale.
* @param style number format style
* @stable ICU 4.2
*/
public static NumberFormat getInstance(Locale inLocale, int style) {
return getInstance(ULocale.forLocale(inLocale), style);
}
/**
* Returns a general-purpose number format for the current default FORMAT locale.
* @see Category#FORMAT
* @stable ICU 2.0
*/
public final static NumberFormat getNumberInstance() {
return getInstance(ULocale.getDefault(Category.FORMAT), NUMBERSTYLE);
}
/**
* Returns a general-purpose number format for the specified locale.
* @stable ICU 2.0
*/
public static NumberFormat getNumberInstance(Locale inLocale) {
return getInstance(ULocale.forLocale(inLocale), NUMBERSTYLE);
}
/**
* {@icu} Returns a general-purpose number format for the specified locale.
* @stable ICU 3.2
*/
public static NumberFormat getNumberInstance(ULocale inLocale) {
return getInstance(inLocale, NUMBERSTYLE);
}
/**
* Returns an integer number format for the current default FORMAT locale. The
* returned number format is configured to round floating point numbers
* to the nearest integer using IEEE half-even rounding (see {@link
* com.ibm.icu.math.BigDecimal#ROUND_HALF_EVEN ROUND_HALF_EVEN}) for formatting,
* and to parse only the integer part of an input string (see {@link
* #isParseIntegerOnly isParseIntegerOnly}).
*
* @return a number format for integer values
* @see Category#FORMAT
* @stable ICU 2.0
*/
//Bug 4408066 [Richard/GCL]
public final static NumberFormat getIntegerInstance() {
return getInstance(ULocale.getDefault(Category.FORMAT), INTEGERSTYLE);
}
/**
* Returns an integer number format for the specified locale. The
* returned number format is configured to round floating point numbers
* to the nearest integer using IEEE half-even rounding (see {@link
* com.ibm.icu.math.BigDecimal#ROUND_HALF_EVEN ROUND_HALF_EVEN}) for formatting,
* and to parse only the integer part of an input string (see {@link
* #isParseIntegerOnly isParseIntegerOnly}).
*
* @param inLocale the locale for which a number format is needed
* @return a number format for integer values
* @stable ICU 2.0
*/
//Bug 4408066 [Richard/GCL]
public static NumberFormat getIntegerInstance(Locale inLocale) {
return getInstance(ULocale.forLocale(inLocale), INTEGERSTYLE);
}
/**
* {@icu} Returns an integer number format for the specified locale. The
* returned number format is configured to round floating point numbers
* to the nearest integer using IEEE half-even rounding (see {@link
* com.ibm.icu.math.BigDecimal#ROUND_HALF_EVEN ROUND_HALF_EVEN}) for formatting,
* and to parse only the integer part of an input string (see {@link
* #isParseIntegerOnly isParseIntegerOnly}).
*
* @param inLocale the locale for which a number format is needed
* @return a number format for integer values
* @stable ICU 3.2
*/
public static NumberFormat getIntegerInstance(ULocale inLocale) {
return getInstance(inLocale, INTEGERSTYLE);
}
/**
* Returns a currency format for the current default FORMAT locale.
* @return a number format for currency
* @see Category#FORMAT
* @stable ICU 2.0
*/
public final static NumberFormat getCurrencyInstance() {
return getInstance(ULocale.getDefault(Category.FORMAT), CURRENCYSTYLE);
}
/**
* Returns a currency format for the specified locale.
* @return a number format for currency
* @stable ICU 2.0
*/
public static NumberFormat getCurrencyInstance(Locale inLocale) {
return getInstance(ULocale.forLocale(inLocale), CURRENCYSTYLE);
}
/**
* {@icu} Returns a currency format for the specified locale.
* @return a number format for currency
* @stable ICU 3.2
*/
public static NumberFormat getCurrencyInstance(ULocale inLocale) {
return getInstance(inLocale, CURRENCYSTYLE);
}
/**
* Returns a percentage format for the current default FORMAT locale.
* @return a number format for percents
* @see Category#FORMAT
* @stable ICU 2.0
*/
public final static NumberFormat getPercentInstance() {
return getInstance(ULocale.getDefault(Category.FORMAT), PERCENTSTYLE);
}
/**
* Returns a percentage format for the specified locale.
* @return a number format for percents
* @stable ICU 2.0
*/
public static NumberFormat getPercentInstance(Locale inLocale) {
return getInstance(ULocale.forLocale(inLocale), PERCENTSTYLE);
}
/**
* {@icu} Returns a percentage format for the specified locale.
* @return a number format for percents
* @stable ICU 3.2
*/
public static NumberFormat getPercentInstance(ULocale inLocale) {
return getInstance(inLocale, PERCENTSTYLE);
}
/**
* {@icu} Returns a scientific format for the current default FORMAT locale.
* @return a scientific number format
* @see Category#FORMAT
* @stable ICU 2.0
*/
public final static NumberFormat getScientificInstance() {
return getInstance(ULocale.getDefault(Category.FORMAT), SCIENTIFICSTYLE);
}
/**
* {@icu} Returns a scientific format for the specified locale.
* @return a scientific number format
* @stable ICU 2.0
*/
public static NumberFormat getScientificInstance(Locale inLocale) {
return getInstance(ULocale.forLocale(inLocale), SCIENTIFICSTYLE);
}
/**
* {@icu} Returns a scientific format for the specified locale.
* @return a scientific number format
* @stable ICU 3.2
*/
public static NumberFormat getScientificInstance(ULocale inLocale) {
return getInstance(inLocale, SCIENTIFICSTYLE);
}
// ===== Factory stuff =====
/**
* A NumberFormatFactory is used to register new number formats. The factory
* should be able to create any of the predefined formats for each locale it
* supports. When registered, the locales it supports extend or override the
* locales already supported by ICU.
*
* Note: as of ICU4J 3.2, the default API for NumberFormatFactory uses
* ULocale instead of Locale. Instead of overriding createFormat(Locale, int),
* new implementations should override createFactory(ULocale, int). Note that
* one of these two methods MUST be overridden or else an infinite
* loop will occur.
*
* @stable ICU 2.6
*/
public static abstract class NumberFormatFactory {
/**
* Value passed to format requesting a default number format.
* @stable ICU 2.6
*/
public static final int FORMAT_NUMBER = NUMBERSTYLE;
/**
* Value passed to format requesting a currency format.
* @stable ICU 2.6
*/
public static final int FORMAT_CURRENCY = CURRENCYSTYLE;
/**
* Value passed to format requesting a percent format.
* @stable ICU 2.6
*/
public static final int FORMAT_PERCENT = PERCENTSTYLE;
/**
* Value passed to format requesting a scientific format.
* @stable ICU 2.6
*/
public static final int FORMAT_SCIENTIFIC = SCIENTIFICSTYLE;
/**
* Value passed to format requesting an integer format.
* @stable ICU 2.6
*/
public static final int FORMAT_INTEGER = INTEGERSTYLE;
/**
* Returns true if this factory is visible. Default is true.
* If not visible, the locales supported by this factory will not
* be listed by getAvailableLocales. This value must not change.
* @return true if the factory is visible.
* @stable ICU 2.6
*/
public boolean visible() {
return true;
}
/**
* Returns an immutable collection of the locale names directly
* supported by this factory.
* @return the supported locale names.
* @stable ICU 2.6
*/
public abstract Set getSupportedLocaleNames();
/**
* Returns a number format of the appropriate type. If the locale
* is not supported, return null. If the locale is supported, but
* the type is not provided by this service, return null. Otherwise
* return an appropriate instance of NumberFormat.
* Note: as of ICU4J 3.2, implementations should override
* this method instead of createFormat(Locale, int).
* @param loc the locale for which to create the format
* @param formatType the type of format
* @return the NumberFormat, or null.
* @stable ICU 3.2
*/
public NumberFormat createFormat(ULocale loc, int formatType) {
return createFormat(loc.toLocale(), formatType);
}
/**
* Returns a number format of the appropriate type. If the locale
* is not supported, return null. If the locale is supported, but
* the type is not provided by this service, return null. Otherwise
* return an appropriate instance of NumberFormat.
* Note: as of ICU4J 3.2, createFormat(ULocale, int) should be
* overridden instead of this method. This method is no longer
* abstract and delegates to that method.
* @param loc the locale for which to create the format
* @param formatType the type of format
* @return the NumberFormat, or null.
* @stable ICU 2.6
*/
public NumberFormat createFormat(Locale loc, int formatType) {
return createFormat(ULocale.forLocale(loc), formatType);
}
/**
* @stable ICU 2.6
*/
protected NumberFormatFactory() {
}
}
/**
* A NumberFormatFactory that supports a single locale. It can be visible or invisible.
* @stable ICU 2.6
*/
public static abstract class SimpleNumberFormatFactory extends NumberFormatFactory {
final Set localeNames;
final boolean visible;
/**
* Constructs a SimpleNumberFormatFactory with the given locale.
* @stable ICU 2.6
*/
public SimpleNumberFormatFactory(Locale locale) {
this(locale, true);
}
/**
* Constructs a SimpleNumberFormatFactory with the given locale and the
* visibility.
* @stable ICU 2.6
*/
public SimpleNumberFormatFactory(Locale locale, boolean visible) {
localeNames = Collections.singleton(ULocale.forLocale(locale).getBaseName());
this.visible = visible;
}
/**
* Constructs a SimpleNumberFormatFactory with the given locale.
* @stable ICU 3.2
*/
public SimpleNumberFormatFactory(ULocale locale) {
this(locale, true);
}
/**
* Constructs a SimpleNumberFormatFactory with the given locale and the
* visibility.
* @stable ICU 3.2
*/
public SimpleNumberFormatFactory(ULocale locale, boolean visible) {
localeNames = Collections.singleton(locale.getBaseName());
this.visible = visible;
}
/**
* {@inheritDoc}
* @stable ICU 2.6
*/
@Override
public final boolean visible() {
return visible;
}
/**
* {@inheritDoc}
* @stable ICU 2.6
*/
@Override
public final Set getSupportedLocaleNames() {
return localeNames;
}
}
// shim so we can build without service code
static abstract class NumberFormatShim {
abstract Locale[] getAvailableLocales();
abstract ULocale[] getAvailableULocales();
abstract Object registerFactory(NumberFormatFactory f);
abstract boolean unregister(Object k);
abstract NumberFormat createInstance(ULocale l, int k);
}
private static NumberFormatShim shim;
private static NumberFormatShim getShim() {
// Note: this instantiation is safe on loose-memory-model configurations
// despite lack of synchronization, since the shim instance has no state--
// it's all in the class init. The worst problem is we might instantiate
// two shim instances, but they'll share the same state so that's ok.
if (shim == null) {
try {
Class cls = Class.forName("com.ibm.icu.text.NumberFormatServiceShim");
shim = (NumberFormatShim)cls.newInstance();
}
///CLOVER:OFF
catch (MissingResourceException e){
throw e;
}
catch (Exception e) {
// e.printStackTrace();
throw new RuntimeException(e.getMessage());
}
///CLOVER:ON
}
return shim;
}
/**
* Returns the list of Locales for which NumberFormats are available.
* @return the available locales
* @stable ICU 2.0
*/
public static Locale[] getAvailableLocales() {
if (shim == null) {
return ICUResourceBundle.getAvailableLocales();
}
return getShim().getAvailableLocales();
}
/**
* {@icu} Returns the list of Locales for which NumberFormats are available.
* @return the available locales
* @draft ICU 3.2 (retain)
* @provisional This API might change or be removed in a future release.
*/
public static ULocale[] getAvailableULocales() {
if (shim == null) {
return ICUResourceBundle.getAvailableULocales();
}
return getShim().getAvailableULocales();
}
/**
* {@icu} Registers a new NumberFormatFactory. The factory is adopted by
* the service and must not be modified. The returned object is a
* key that can be used to unregister this factory.
* @param factory the factory to register
* @return a key with which to unregister the factory
* @stable ICU 2.6
*/
public static Object registerFactory(NumberFormatFactory factory) {
if (factory == null) {
throw new IllegalArgumentException("factory must not be null");
}
return getShim().registerFactory(factory);
}
/**
* {@icu} Unregisters the factory or instance associated with this key (obtained from
* registerInstance or registerFactory).
* @param registryKey a key obtained from registerFactory
* @return true if the object was successfully unregistered
* @stable ICU 2.6
*/
public static boolean unregister(Object registryKey) {
if (registryKey == null) {
throw new IllegalArgumentException("registryKey must not be null");
}
if (shim == null) {
return false;
}
return shim.unregister(registryKey);
}
// ===== End of factory stuff =====
/**
* Overrides hashCode.
* @stable ICU 2.0
*/
@Override
public int hashCode() {
return maximumIntegerDigits * 37 + maxFractionDigits;
// just enough fields for a reasonable distribution
}
/**
* Overrides equals.
* Two NumberFormats are equal if they are of the same class
* and the settings (groupingUsed, parseIntegerOnly, maximumIntegerDigits, etc.
* are equal.
* @param obj the object to compare against
* @return true if the object is equal to this.
* @stable ICU 2.0
*/
@Override
public boolean equals(Object obj) {
if (obj == null) return false;
if (this == obj)
return true;
if (getClass() != obj.getClass())
return false;
NumberFormat other = (NumberFormat) obj;
return maximumIntegerDigits == other.maximumIntegerDigits
&& minimumIntegerDigits == other.minimumIntegerDigits
&& maximumFractionDigits == other.maximumFractionDigits
&& minimumFractionDigits == other.minimumFractionDigits
&& groupingUsed == other.groupingUsed
&& parseIntegerOnly == other.parseIntegerOnly
&& parseStrict == other.parseStrict;
}
/**
* Overrides clone.
* @stable ICU 2.0
*/
@Override
public Object clone() {
NumberFormat other = (NumberFormat) super.clone();
return other;
}
/**
* Returns true if grouping is used in this format. For example, in the
* en_US locale, with grouping on, the number 1234567 will be formatted
* as "1,234,567". The grouping separator as well as the size of each group
* is locale-dependent and is determined by subclasses of NumberFormat.
* Grouping affects both parsing and formatting.
* @return true if grouping is used
* @see #setGroupingUsed
* @stable ICU 2.0
*/
public boolean isGroupingUsed() {
return groupingUsed;
}
/**
* Sets whether or not grouping will be used in this format. Grouping
* affects both parsing and formatting.
* @see #isGroupingUsed
* @param newValue true to use grouping.
* @stable ICU 2.0
*/
public void setGroupingUsed(boolean newValue) {
groupingUsed = newValue;
}
/**
* Returns the maximum number of digits allowed in the integer portion of a
* number. The default value is 40, which subclasses can override.
* When formatting, the exact behavior when this value is exceeded is
* subclass-specific. When parsing, this has no effect.
* @return the maximum number of integer digits
* @see #setMaximumIntegerDigits
* @stable ICU 2.0
*/
public int getMaximumIntegerDigits() {
return maximumIntegerDigits;
}
/**
* Sets the maximum number of digits allowed in the integer portion of a
* number. This must be >= minimumIntegerDigits. If the
* new value for maximumIntegerDigits is less than the current value
* of minimumIntegerDigits, then minimumIntegerDigits will also be set to
* the new value.
* @param newValue the maximum number of integer digits to be shown; if
* less than zero, then zero is used. Subclasses might enforce an
* upper limit to this value appropriate to the numeric type being formatted.
* @see #getMaximumIntegerDigits
* @stable ICU 2.0
*/
public void setMaximumIntegerDigits(int newValue) {
maximumIntegerDigits = Math.max(0,newValue);
if (minimumIntegerDigits > maximumIntegerDigits)
minimumIntegerDigits = maximumIntegerDigits;
}
/**
* Returns the minimum number of digits allowed in the integer portion of a
* number. The default value is 1, which subclasses can override.
* When formatting, if this value is not reached, numbers are padded on the
* left with the locale-specific '0' character to ensure at least this
* number of integer digits. When parsing, this has no effect.
* @return the minimum number of integer digits
* @see #setMinimumIntegerDigits
* @stable ICU 2.0
*/
public int getMinimumIntegerDigits() {
return minimumIntegerDigits;
}
/**
* Sets the minimum number of digits allowed in the integer portion of a
* number. This must be <= maximumIntegerDigits. If the
* new value for minimumIntegerDigits is more than the current value
* of maximumIntegerDigits, then maximumIntegerDigits will also be set to
* the new value.
* @param newValue the minimum number of integer digits to be shown; if
* less than zero, then zero is used. Subclasses might enforce an
* upper limit to this value appropriate to the numeric type being formatted.
* @see #getMinimumIntegerDigits
* @stable ICU 2.0
*/
public void setMinimumIntegerDigits(int newValue) {
minimumIntegerDigits = Math.max(0,newValue);
if (minimumIntegerDigits > maximumIntegerDigits)
maximumIntegerDigits = minimumIntegerDigits;
}
/**
* Returns the maximum number of digits allowed in the fraction
* portion of a number. The default value is 3, which subclasses
* can override. When formatting, the exact behavior when this
* value is exceeded is subclass-specific. When parsing, this has
* no effect.
* @return the maximum number of fraction digits
* @see #setMaximumFractionDigits
* @stable ICU 2.0
*/
public int getMaximumFractionDigits() {
return maximumFractionDigits;
}
/**
* Sets the maximum number of digits allowed in the fraction portion of a
* number. This must be >= minimumFractionDigits. If the
* new value for maximumFractionDigits is less than the current value
* of minimumFractionDigits, then minimumFractionDigits will also be set to
* the new value.
* @param newValue the maximum number of fraction digits to be shown; if
* less than zero, then zero is used. The concrete subclass may enforce an
* upper limit to this value appropriate to the numeric type being formatted.
* @see #getMaximumFractionDigits
* @stable ICU 2.0
*/
public void setMaximumFractionDigits(int newValue) {
maximumFractionDigits = Math.max(0,newValue);
if (maximumFractionDigits < minimumFractionDigits)
minimumFractionDigits = maximumFractionDigits;
}
/**
* Returns the minimum number of digits allowed in the fraction portion of a
* number. The default value is 0, which subclasses can override.
* When formatting, if this value is not reached, numbers are padded on
* the right with the locale-specific '0' character to ensure at least
* this number of fraction digits. When parsing, this has no effect.
* @return the minimum number of fraction digits
* @see #setMinimumFractionDigits
* @stable ICU 2.0
*/
public int getMinimumFractionDigits() {
return minimumFractionDigits;
}
/**
* Sets the minimum number of digits allowed in the fraction portion of a
* number. This must be <= maximumFractionDigits. If the
* new value for minimumFractionDigits exceeds the current value
* of maximumFractionDigits, then maximumFractionDigits will also be set to
* the new value.
* @param newValue the minimum number of fraction digits to be shown; if
* less than zero, then zero is used. Subclasses might enforce an
* upper limit to this value appropriate to the numeric type being formatted.
* @see #getMinimumFractionDigits
* @stable ICU 2.0
*/
public void setMinimumFractionDigits(int newValue) {
minimumFractionDigits = Math.max(0,newValue);
if (maximumFractionDigits < minimumFractionDigits)
maximumFractionDigits = minimumFractionDigits;
}
/**
* Sets the Currency object used to display currency
* amounts. This takes effect immediately, if this format is a
* currency format. If this format is not a currency format, then
* the currency object is used if and when this object becomes a
* currency format.
* @param theCurrency new currency object to use. May be null for
* some subclasses.
* @stable ICU 2.6
*/
public void setCurrency(Currency theCurrency) {
currency = theCurrency;
}
/**
* Returns the Currency object used to display currency
* amounts. This may be null.
* @stable ICU 2.6
*/
public Currency getCurrency() {
return currency;
}
/**
* Returns the currency in effect for this formatter. Subclasses
* should override this method as needed. Unlike getCurrency(),
* this method should never return null.
* @return a non-null Currency
* @internal
* @deprecated This API is ICU internal only.
*/
@Deprecated
protected Currency getEffectiveCurrency() {
Currency c = getCurrency();
if (c == null) {
ULocale uloc = getLocale(ULocale.VALID_LOCALE);
if (uloc == null) {
uloc = ULocale.getDefault(Category.FORMAT);
}
c = Currency.getInstance(uloc);
}
return c;
}
/**
* Returns the rounding mode used in this NumberFormat. The default implementation of
* tis method in NumberFormat always throws UnsupportedOperationException.
* @return A rounding mode, between BigDecimal.ROUND_UP
* and BigDecimal.ROUND_UNNECESSARY.
* @see #setRoundingMode(int)
* @stable ICU 4.0
*/
public int getRoundingMode() {
throw new UnsupportedOperationException(
"getRoundingMode must be implemented by the subclass implementation.");
}
/**
* Set the rounding mode used in this NumberFormat. The default implementation of
* tis method in NumberFormat always throws UnsupportedOperationException.
* @param roundingMode A rounding mode, between
* BigDecimal.ROUND_UP and
* BigDecimal.ROUND_UNNECESSARY.
* @see #getRoundingMode()
* @stable ICU 4.0
*/
public void setRoundingMode(int roundingMode) {
throw new UnsupportedOperationException(
"setRoundingMode must be implemented by the subclass implementation.");
}
/**
* Returns a specific style number format for a specific locale.
* @param desiredLocale the specific locale.
* @param choice number format style
* @throws IllegalArgumentException if choice is not one of
* NUMBERSTYLE, CURRENCYSTYLE,
* PERCENTSTYLE, SCIENTIFICSTYLE,
* INTEGERSTYLE,
* ISOCURRENCYSTYLE, PLURALCURRENCYSTYLE,
* @stable ICU 4.2
*/
public static NumberFormat getInstance(ULocale desiredLocale, int choice) {
if (choice < NUMBERSTYLE || choice > PLURALCURRENCYSTYLE) {
throw new IllegalArgumentException(
"choice should be from NUMBERSTYLE to PLURALCURRENCYSTYLE");
}
// if (shim == null) {
// return createInstance(desiredLocale, choice);
// } else {
// // TODO: shims must call setLocale() on object they create
// return getShim().createInstance(desiredLocale, choice);
// }
return getShim().createInstance(desiredLocale, choice);
}
// =======================privates===============================
// Hook for service
static NumberFormat createInstance(ULocale desiredLocale, int choice) {
// If the choice is PLURALCURRENCYSTYLE, the pattern is not a single
// pattern, it is a pattern set, so we do not need to get them here.
// If the choice is ISOCURRENCYSTYLE, the pattern is the currrency
// pattern in the locale but by replacing the single currency sign
// with double currency sign.
String pattern = getPattern(desiredLocale, choice);
DecimalFormatSymbols symbols = new DecimalFormatSymbols(desiredLocale);
// Here we assume that the locale passed in is in the canonical
// form, e.g: pt_PT_@currency=PTE not pt_PT_PREEURO
// This style wont work for currency plural format.
// For currency plural format, the pattern is get from
// the locale (from CurrencyUnitPatterns) without override.
if(choice == CURRENCYSTYLE || choice == ISOCURRENCYSTYLE){
String temp = symbols.getCurrencyPattern();
if(temp!=null){
pattern = temp;
}
}
// replace single currency sign in the pattern with double currency sign
// if the choice is ISOCURRENCYSTYLE.
if (choice == ISOCURRENCYSTYLE) {
pattern = pattern.replace("\u00A4", doubleCurrencyStr);
}
// Get the numbering system
NumberingSystem ns = NumberingSystem.getInstance(desiredLocale);
if ( ns == null ) {
return null;
}
NumberFormat format;
if ( ns != null && ns.isAlgorithmic()) {
String nsDesc;
String nsRuleSetGroup;
String nsRuleSetName;
ULocale nsLoc;
int desiredRulesType = RuleBasedNumberFormat.NUMBERING_SYSTEM;
nsDesc = ns.getDescription();
int firstSlash = nsDesc.indexOf("/");
int lastSlash = nsDesc.lastIndexOf("/");
if ( lastSlash > firstSlash ) {
String nsLocID = nsDesc.substring(0,firstSlash);
nsRuleSetGroup = nsDesc.substring(firstSlash+1,lastSlash);
nsRuleSetName = nsDesc.substring(lastSlash+1);
nsLoc = new ULocale(nsLocID);
if ( nsRuleSetGroup.equals("SpelloutRules")) {
desiredRulesType = RuleBasedNumberFormat.SPELLOUT;
}
} else {
nsLoc = desiredLocale;
nsRuleSetName = nsDesc;
}
RuleBasedNumberFormat r = new RuleBasedNumberFormat(nsLoc,desiredRulesType);
r.setDefaultRuleSet(nsRuleSetName);
format = r;
} else {
DecimalFormat f = new DecimalFormat(pattern, symbols, choice);
// System.out.println("loc: " + desiredLocale + " choice: " + choice + " pat: " + pattern + " sym: " + symbols + " result: " + format);
/*Bug 4408066
Add codes for the new method getIntegerInstance() [Richard/GCL]
*/
// TODO: revisit this -- this is almost certainly not the way we want
// to do this. aliu 1/6/2004
if (choice == INTEGERSTYLE) {
f.setMaximumFractionDigits(0);
f.setDecimalSeparatorAlwaysShown(false);
f.setParseIntegerOnly(true);
}
format = f;
}
// TODO: the actual locale of the *pattern* may differ from that
// for the *symbols*. For now, we use the data for the symbols.
// Revisit this.
ULocale valid = symbols.getLocale(ULocale.VALID_LOCALE);
ULocale actual = symbols.getLocale(ULocale.ACTUAL_LOCALE);
format.setLocale(valid, actual);
return format;
}
/**
* Returns the pattern for the provided locale and choice.
* @param forLocale the locale of the data.
* @param choice the pattern format.
* @return the pattern
* @deprecated ICU 3.4 subclassers should override getPattern(ULocale, int) instead of this method.
*/
@Deprecated
protected static String getPattern(Locale forLocale, int choice) {
return getPattern(ULocale.forLocale(forLocale), choice);
}
/**
* Returns the pattern for the provided locale and choice.
* @param forLocale the locale of the data.
* @param choice the pattern format.
* @return the pattern
* @stable ICU 3.2
*/
protected static String getPattern(ULocale forLocale, int choice) {
/* The following code takes care of a few cases where the
* resource data in the underlying JDK lags the new features
* we have added to ICU4J: scientific notation, rounding, and
* secondary grouping.
*
* We detect these cases here and return various hard-coded
* resource data. This is the simplest solution for now, but
* it is not a good long-term mechanism.
*
* We should replace this code with a data-driven mechanism
* that reads the bundle com.ibm.icu.impl.data.LocaleElements
* and parses an exception table that overrides the standard
* data at java.text.resource.LocaleElements*.java.
* Alternatively, we should create our own copy of the
* resource data, and use that exclusively.
*/
// TEMPORARY, until we get scientific patterns into the main
// resources: Retrieve scientific patterns from our resources.
//if (choice == SCIENTIFICSTYLE) {
// Temporarily hard code; retrieve from resource later
/*For ICU compatibility [Richard/GCL]*/
// return "#E0";
// return NumberFormat.getBaseStringArray("NumberPatterns")[SCIENTIFICSTYLE];
//}
/* {dlf}
// Try the cache first
String[] numberPatterns = (String[]) cachedLocaleData.get(forLocale);
if (numberPatterns == null) {
OverlayBundle resource = new OverlayBundle(new String[]
{ "com.ibm.icu.impl.data.LocaleElements", RESOURCE_BASE }, forLocale);
numberPatterns = resource.getStringArray("NumberPatterns");
// Update the cache
cachedLocaleData.put(forLocale, numberPatterns);
}
*/
/* for ISOCURRENCYSTYLE and PLURALCURRENCYSTYLE,
* the pattern is the same as the pattern of CURRENCYSTYLE
* but by replacing the single currency sign with
* double currency sign or triple currency sign.
*/
int entry = (choice == INTEGERSTYLE) ? NUMBERSTYLE :
((choice == ISOCURRENCYSTYLE || choice == PLURALCURRENCYSTYLE)?
CURRENCYSTYLE : choice); //[Richard/GCL]
ICUResourceBundle rb = (ICUResourceBundle)UResourceBundle.
getBundleInstance(ICUResourceBundle.ICU_BASE_NAME, forLocale);
String[] numberPatternKeys = { "decimalFormat", "currencyFormat", "percentFormat", "scientificFormat" };
NumberingSystem ns = NumberingSystem.getInstance(forLocale);
String result = null;
try {
result = rb.getStringWithFallback("NumberElements/" + ns.getName() + "/patterns/"+numberPatternKeys[entry]);
} catch ( MissingResourceException ex ) {
result = rb.getStringWithFallback("NumberElements/latn/patterns/"+numberPatternKeys[entry]);
}
return result;
}
/**
* First, read in the default serializable data.
*
* Then, if serialVersionOnStream is less than 1, indicating that
* the stream was written by JDK 1.1,
* set the int fields such as maximumIntegerDigits
* to be equal to the byte fields such as maxIntegerDigits,
* since the int fields were not present in JDK 1.1.
* Finally, set serialVersionOnStream back to the maximum allowed value so that
* default serialization will work properly if this object is streamed out again.
*/
private void readObject(ObjectInputStream stream)
throws IOException, ClassNotFoundException
{
stream.defaultReadObject();
///CLOVER:OFF
// we don't have serialization data for this format
if (serialVersionOnStream < 1) {
// Didn't have additional int fields, reassign to use them.
maximumIntegerDigits = maxIntegerDigits;
minimumIntegerDigits = minIntegerDigits;
maximumFractionDigits = maxFractionDigits;
minimumFractionDigits = minFractionDigits;
}
///CLOVER:ON
/*Bug 4185761
Validate the min and max fields [Richard/GCL]
*/
if (minimumIntegerDigits > maximumIntegerDigits ||
minimumFractionDigits > maximumFractionDigits ||
minimumIntegerDigits < 0 || minimumFractionDigits < 0) {
throw new InvalidObjectException("Digit count range invalid");
}
serialVersionOnStream = currentSerialVersion;
}
/**
* Write out the default serializable data, after first setting
* the byte fields such as maxIntegerDigits to be
* equal to the int fields such as maximumIntegerDigits
* (or to Byte.MAX_VALUE, whichever is smaller), for compatibility
* with the JDK 1.1 version of the stream format.
*/
private void writeObject(ObjectOutputStream stream)
throws IOException
{
maxIntegerDigits = (maximumIntegerDigits > Byte.MAX_VALUE) ? Byte.MAX_VALUE :
(byte)maximumIntegerDigits;
minIntegerDigits = (minimumIntegerDigits > Byte.MAX_VALUE) ? Byte.MAX_VALUE :
(byte)minimumIntegerDigits;
maxFractionDigits = (maximumFractionDigits > Byte.MAX_VALUE) ? Byte.MAX_VALUE :
(byte)maximumFractionDigits;
minFractionDigits = (minimumFractionDigits > Byte.MAX_VALUE) ? Byte.MAX_VALUE :
(byte)minimumFractionDigits;
stream.defaultWriteObject();
}
// Unused -- Alan 2003-05
// /**
// * Cache to hold the NumberPatterns of a Locale.
// */
// private static final Hashtable cachedLocaleData = new Hashtable(3);
private static final char[] doubleCurrencySign = {0xA4, 0xA4};
private static final String doubleCurrencyStr = new String(doubleCurrencySign);
/*Bug 4408066
Add Field for the new method getIntegerInstance() [Richard/GCL]
*/
/**
* True if the the grouping (i.e. thousands) separator is used when
* formatting and parsing numbers.
*
* @serial
* @see #isGroupingUsed
*/
private boolean groupingUsed = true;
/**
* The maximum number of digits allowed in the integer portion of a
* number. maxIntegerDigits must be greater than or equal to
* minIntegerDigits.
*
* Note: This field exists only for serialization
* compatibility with JDK 1.1. In JDK 1.2 and higher, the new
* int field maximumIntegerDigits is used instead.
* When writing to a stream, maxIntegerDigits is set to
* maximumIntegerDigits or Byte.MAX_VALUE,
* whichever is smaller. When reading from a stream, this field is used
* only if serialVersionOnStream is less than 1.
*
* @serial
* @see #getMaximumIntegerDigits
*/
private byte maxIntegerDigits = 40;
/**
* The minimum number of digits allowed in the integer portion of a
* number. minimumIntegerDigits must be less than or equal to
* maximumIntegerDigits.
*
* Note: This field exists only for serialization
* compatibility with JDK 1.1. In JDK 1.2 and higher, the new
* int field minimumIntegerDigits is used instead.
* When writing to a stream, minIntegerDigits is set to
* minimumIntegerDigits or Byte.MAX_VALUE,
* whichever is smaller. When reading from a stream, this field is used
* only if serialVersionOnStream is less than 1.
*
* @serial
* @see #getMinimumIntegerDigits
*/
private byte minIntegerDigits = 1;
/**
* The maximum number of digits allowed in the fractional portion of a
* number. maximumFractionDigits must be greater than or equal to
* minimumFractionDigits.
*
* Note: This field exists only for serialization
* compatibility with JDK 1.1. In JDK 1.2 and higher, the new
* int field maximumFractionDigits is used instead.
* When writing to a stream, maxFractionDigits is set to
* maximumFractionDigits or Byte.MAX_VALUE,
* whichever is smaller. When reading from a stream, this field is used
* only if serialVersionOnStream is less than 1.
*
* @serial
* @see #getMaximumFractionDigits
*/
private byte maxFractionDigits = 3; // invariant, >= minFractionDigits
/**
* The minimum number of digits allowed in the fractional portion of a
* number. minimumFractionDigits must be less than or equal to
* maximumFractionDigits.
*
* Note: This field exists only for serialization
* compatibility with JDK 1.1. In JDK 1.2 and higher, the new
* int field minimumFractionDigits is used instead.
* When writing to a stream, minFractionDigits is set to
* minimumFractionDigits or Byte.MAX_VALUE,
* whichever is smaller. When reading from a stream, this field is used
* only if serialVersionOnStream is less than 1.
*
* @serial
* @see #getMinimumFractionDigits
*/
private byte minFractionDigits = 0;
/**
* True if this format will parse numbers as integers only.
*
* @serial
* @see #isParseIntegerOnly
*/
private boolean parseIntegerOnly = false;
// new fields for 1.2. byte is too small for integer digits.
/**
* The maximum number of digits allowed in the integer portion of a
* number. maximumIntegerDigits must be greater than or equal to
* minimumIntegerDigits.
*
* @serial
* @see #getMaximumIntegerDigits
*/
private int maximumIntegerDigits = 40;
/**
* The minimum number of digits allowed in the integer portion of a
* number. minimumIntegerDigits must be less than or equal to
* maximumIntegerDigits.
*
* @serial
* @see #getMinimumIntegerDigits
*/
private int minimumIntegerDigits = 1;
/**
* The maximum number of digits allowed in the fractional portion of a
* number. maximumFractionDigits must be greater than or equal to
* minimumFractionDigits.
*
* @serial
* @see #getMaximumFractionDigits
*/
private int maximumFractionDigits = 3; // invariant, >= minFractionDigits
/**
* The minimum number of digits allowed in the fractional portion of a
* number. minimumFractionDigits must be less than or equal to
* maximumFractionDigits.
*
* @serial
* @see #getMinimumFractionDigits
*/
private int minimumFractionDigits = 0;
/**
* Currency object used to format currencies. Subclasses may
* ignore this if they are not currency formats. This will be
* null unless a subclass sets it to a non-null value.
* @since ICU 2.6
*/
private Currency currency;
static final int currentSerialVersion = 1;
/**
* Describes the version of NumberFormat present on the stream.
* Possible values are:
*
* - 0 (or uninitialized): the JDK 1.1 version of the stream format.
* In this version, the
int fields such as
* maximumIntegerDigits were not present, and the byte
* fields such as maxIntegerDigits are used instead.
*
* - 1: the JDK 1.2 version of the stream format. The values of the
*
byte fields such as maxIntegerDigits are ignored,
* and the int fields such as maximumIntegerDigits
* are used instead.
*
* When streaming out a NumberFormat, the most recent format
* (corresponding to the highest allowable serialVersionOnStream)
* is always written.
*
* @serial
*/
private int serialVersionOnStream = currentSerialVersion;
// Removed "implements Cloneable" clause. Needs to update serialization
// ID for backward compatibility.
private static final long serialVersionUID = -2308460125733713944L;
/**
* Empty constructor. Public for compatibily with JDK which lets the
* compiler generate a default public constructor even though this is
* an abstract class.
* @stable ICU 2.6
*/
public NumberFormat() {
}
// new in ICU4J 3.6
private boolean parseStrict;
/**
* The instances of this inner class are used as attribute keys and values
* in AttributedCharacterIterator that
* NumberFormat.formatToCharacterIterator() method returns.
*
* There is no public constructor to this class, the only instances are the
* constants defined here.
*
* @stable ICU 3.6
*/
public static class Field extends Format.Field {
// generated by serialver from JDK 1.4.1_01
static final long serialVersionUID = -4516273749929385842L;
/**
* @stable ICU 3.6
*/
public static final Field SIGN = new Field("sign");
/**
* @stable ICU 3.6
*/
public static final Field INTEGER = new Field("integer");
/**
* @stable ICU 3.6
*/
public static final Field FRACTION = new Field("fraction");
/**
* @stable ICU 3.6
*/
public static final Field EXPONENT = new Field("exponent");
/**
* @stable ICU 3.6
*/
public static final Field EXPONENT_SIGN = new Field("exponent sign");
/**
* @stable ICU 3.6
*/
public static final Field EXPONENT_SYMBOL = new Field("exponent symbol");
/**
* @stable ICU 3.6
*/
public static final Field DECIMAL_SEPARATOR = new Field("decimal separator");
/**
* @stable ICU 3.6
*/
public static final Field GROUPING_SEPARATOR = new Field("grouping separator");
/**
* @stable ICU 3.6
*/
public static final Field PERCENT = new Field("percent");
/**
* @stable ICU 3.6
*/
public static final Field PERMILLE = new Field("per mille");
/**
* @stable ICU 3.6
*/
public static final Field CURRENCY = new Field("currency");
/**
* Constructs a new instance of NumberFormat.Field with the given field
* name.
* @stable ICU 3.6
*/
protected Field(String fieldName) {
super(fieldName);
}
/**
* serizalization method resolve instances to the constant
* NumberFormat.Field values
* @stable ICU 3.6
*/
@Override
protected Object readResolve() throws InvalidObjectException {
if (this.getName().equals(INTEGER.getName()))
return INTEGER;
if (this.getName().equals(FRACTION.getName()))
return FRACTION;
if (this.getName().equals(EXPONENT.getName()))
return EXPONENT;
if (this.getName().equals(EXPONENT_SIGN.getName()))
return EXPONENT_SIGN;
if (this.getName().equals(EXPONENT_SYMBOL.getName()))
return EXPONENT_SYMBOL;
if (this.getName().equals(CURRENCY.getName()))
return CURRENCY;
if (this.getName().equals(DECIMAL_SEPARATOR.getName()))
return DECIMAL_SEPARATOR;
if (this.getName().equals(GROUPING_SEPARATOR.getName()))
return GROUPING_SEPARATOR;
if (this.getName().equals(PERCENT.getName()))
return PERCENT;
if (this.getName().equals(PERMILLE.getName()))
return PERMILLE;
if (this.getName().equals(SIGN.getName()))
return SIGN;
throw new InvalidObjectException("An invalid object.");
}
}
}