com.ibm.icu.util.LocaleData Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of icu4j Show documentation
Show all versions of icu4j Show documentation
International Component for Unicode for Java (ICU4J) is a mature, widely used Java library
providing Unicode and Globalization support
The newest version!
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**************************************************************************************
* Copyright (C) 2009-2016, International Business Machines Corporation,
* Google, Inc. and others. All Rights Reserved.
**************************************************************************************
*/
package com.ibm.icu.util;
import java.util.MissingResourceException;
import com.ibm.icu.impl.ICUData;
import com.ibm.icu.impl.ICUResourceBundle;
import com.ibm.icu.text.UnicodeSet;
import com.ibm.icu.util.ULocale.Category;
/**
* A class for accessing miscellaneous data in the locale bundles
* @author ram
* @stable ICU 2.8
*/
public final class LocaleData {
// private static final String EXEMPLAR_CHARS = "ExemplarCharacters";
private static final String MEASUREMENT_SYSTEM = "MeasurementSystem";
private static final String PAPER_SIZE = "PaperSize";
private static final String LOCALE_DISPLAY_PATTERN = "localeDisplayPattern";
private static final String PATTERN = "pattern";
private static final String SEPARATOR = "separator";
private boolean noSubstitute;
private ICUResourceBundle bundle;
private ICUResourceBundle langBundle;
private MissingResourceException langBundleException;
/**
* EXType for {@link #getExemplarSet(int, int)}.
* Corresponds to the 'main' (aka 'standard') CLDR exemplars in
*
* http://www.unicode.org/reports/tr35/tr35-general.html#Character_Elements.
* @stable ICU 3.4
*/
public static final int ES_STANDARD = 0;
/**
* EXType for {@link #getExemplarSet(int, int)}.
* Corresponds to the 'auxiliary' CLDR exemplars in
*
* http://www.unicode.org/reports/tr35/tr35-general.html#Character_Elements.
* @stable ICU 3.4
*/
public static final int ES_AUXILIARY = 1;
/**
* EXType for {@link #getExemplarSet(int, int)}.
* Corresponds to the 'index' CLDR exemplars in
*
* http://www.unicode.org/reports/tr35/tr35-general.html#Character_Elements.
* @stable ICU 4.4
*/
public static final int ES_INDEX = 2;
/**
* EXType for {@link #getExemplarSet(int, int)}.
* Corresponds to the 'currencySymbol' CLDR exemplars in
*
* http://www.unicode.org/reports/tr35/tr35-general.html#Character_Elements.
* Note: This type is no longer supported.
* @deprecated ICU 51
*/
@Deprecated
public static final int ES_CURRENCY = 3;
/**
* Corresponds to the 'punctuation' CLDR exemplars in
*
* http://www.unicode.org/reports/tr35/tr35-general.html#Character_Elements.
* EXType for {@link #getExemplarSet(int, int)}.
* @stable ICU 49
*/
public static final int ES_PUNCTUATION = 4;
/**
* Count of EXTypes for {@link #getExemplarSet(int, int)}.
* @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
*/
@Deprecated
public static final int ES_COUNT = 5;
/**
* Delimiter type for {@link #getDelimiter(int)}.
* @stable ICU 3.4
*/
public static final int QUOTATION_START = 0;
/**
* Delimiter type for {@link #getDelimiter(int)}.
* @stable ICU 3.4
*/
public static final int QUOTATION_END = 1;
/**
* Delimiter type for {@link #getDelimiter(int)}.
* @stable ICU 3.4
*/
public static final int ALT_QUOTATION_START = 2;
/**
* Delimiter type for {@link #getDelimiter(int)}.
* @stable ICU 3.4
*/
public static final int ALT_QUOTATION_END = 3;
/**
* Count of delimiter types for {@link #getDelimiter(int)}.
* @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
*/
@Deprecated
public static final int DELIMITER_COUNT = 4;
// private constructor to prevent default construction
///CLOVER:OFF
private LocaleData(){}
///CLOVER:ON
/**
* Returns the set of exemplar characters for a locale. Equivalent to calling {@link #getExemplarSet(ULocale, int, int)} with
* the extype == {@link #ES_STANDARD}.
*
* @param locale Locale for which the exemplar character set
* is to be retrieved.
* @param options Bitmask for options to apply to the exemplar pattern.
* Specify zero to retrieve the exemplar set as it is
* defined in the locale data. Specify
* UnicodeSet.CASE to retrieve a case-folded exemplar
* set. See {@link UnicodeSet#applyPattern(String,
* int)} for a complete list of valid options. The
* IGNORE_SPACE bit is always set, regardless of the
* value of 'options'.
* @return The set of exemplar characters for the given locale.
* @stable ICU 3.0
*/
public static UnicodeSet getExemplarSet(ULocale locale, int options) {
return LocaleData.getInstance(locale).getExemplarSet(options, ES_STANDARD);
}
/**
* Returns the set of exemplar characters for a locale.
* Equivalent to calling new LocaleData(locale).{@link #getExemplarSet(int, int)}.
*
* @param locale Locale for which the exemplar character set
* is to be retrieved.
* @param options Bitmask for options to apply to the exemplar pattern.
* Specify zero to retrieve the exemplar set as it is
* defined in the locale data. Specify
* UnicodeSet.CASE to retrieve a case-folded exemplar
* set. See {@link UnicodeSet#applyPattern(String,
* int)} for a complete list of valid options. The
* IGNORE_SPACE bit is always set, regardless of the
* value of 'options'.
* @param extype The type of exemplar character set to retrieve.
* @return The set of exemplar characters for the given locale.
* @stable ICU 3.0
*/
public static UnicodeSet getExemplarSet(ULocale locale, int options, int extype) {
return LocaleData.getInstance(locale).getExemplarSet(options, extype);
}
/**
* Returns the set of exemplar characters for a locale.
*
* @param options Bitmask for options to apply to the exemplar pattern.
* Specify zero to retrieve the exemplar set as it is
* defined in the locale data. Specify
* UnicodeSet.CASE to retrieve a case-folded exemplar
* set. See {@link UnicodeSet#applyPattern(String,
* int)} for a complete list of valid options. The
* IGNORE_SPACE bit is always set, regardless of the
* value of 'options'.
* @param extype The type of exemplar set to be retrieved,
* ES_STANDARD, ES_INDEX, ES_AUXILIARY, or ES_PUNCTUATION
* @return The set of exemplar characters for the given locale.
* If there is nothing available for the locale,
* then null is returned if {@link #getNoSubstitute()} is true, otherwise the
* root value is returned (which may be UnicodeSet.EMPTY).
* @exception RuntimeException if the extype is invalid.
* @stable ICU 3.4
*/
public UnicodeSet getExemplarSet(int options, int extype) {
String [] exemplarSetTypes = {
"ExemplarCharacters",
"AuxExemplarCharacters",
"ExemplarCharactersIndex",
"ExemplarCharactersCurrency",
"ExemplarCharactersPunctuation"
};
if (extype == ES_CURRENCY) {
// currency symbol exemplar is no longer available
return noSubstitute ? null : UnicodeSet.EMPTY;
}
try{
final String aKey = exemplarSetTypes[extype]; // will throw an out-of-bounds exception
ICUResourceBundle stringBundle = (ICUResourceBundle) bundle.get(aKey);
if (noSubstitute && !bundle.isRoot() && stringBundle.isRoot()) {
return null;
}
String unicodeSetPattern = stringBundle.getString();
return new UnicodeSet(unicodeSetPattern, UnicodeSet.IGNORE_SPACE | options);
} catch (ArrayIndexOutOfBoundsException aiooe) {
throw new IllegalArgumentException(aiooe);
} catch (Exception ex){
return noSubstitute ? null : UnicodeSet.EMPTY;
}
}
/**
* Gets the LocaleData object associated with the ULocale specified in locale
*
* @param locale Locale with thich the locale data object is associated.
* @return A locale data object.
* @stable ICU 3.4
*/
public static final LocaleData getInstance(ULocale locale) {
LocaleData ld = new LocaleData();
ld.bundle = (ICUResourceBundle)UResourceBundle.getBundleInstance(ICUData.ICU_BASE_NAME, locale);
try {
ld.langBundle = (ICUResourceBundle)UResourceBundle.getBundleInstance(ICUData.ICU_LANG_BASE_NAME, locale);
} catch (MissingResourceException mre) {
// Expected error case: ICU-22149
ld.langBundleException = mre;
}
ld.noSubstitute = false;
return ld;
}
/**
* Gets the LocaleData object associated with the default FORMAT locale
*
* @return A locale data object.
* @see Category#FORMAT
* @stable ICU 3.4
*/
public static final LocaleData getInstance() {
return LocaleData.getInstance(ULocale.getDefault(Category.FORMAT));
}
/**
* Sets the "no substitute" behavior of this locale data object.
*
* @param setting Value for the no substitute behavior. If true,
* methods of this locale data object will return
* an error when no data is available for that method,
* given the locale ID supplied to the constructor.
* @stable ICU 3.4
*/
public void setNoSubstitute(boolean setting) {
noSubstitute = setting;
}
/**
* Gets the "no substitute" behavior of this locale data object.
*
* @return Value for the no substitute behavior. If true,
* methods of this locale data object will return
* an error when no data is available for that method,
* given the locale ID supplied to the constructor.
* @stable ICU 3.4
*/
public boolean getNoSubstitute() {
return noSubstitute;
}
private static final String [] DELIMITER_TYPES = {
"quotationStart",
"quotationEnd",
"alternateQuotationStart",
"alternateQuotationEnd"
};
/**
* Retrieves a delimiter string from the locale data.
*
* @param type The type of delimiter string desired. Currently,
* the valid choices are QUOTATION_START, QUOTATION_END,
* ALT_QUOTATION_START, or ALT_QUOTATION_END.
* @return The desired delimiter string.
* @stable ICU 3.4
*/
public String getDelimiter(int type) {
ICUResourceBundle delimitersBundle = (ICUResourceBundle) bundle.get("delimiters");
// Only some of the quotation marks may be here. So we make sure that we do a multilevel fallback.
ICUResourceBundle stringBundle = delimitersBundle.getWithFallback(DELIMITER_TYPES[type]);
if (noSubstitute && !bundle.isRoot() && stringBundle.isRoot()) {
return null;
}
return stringBundle.getString();
}
/**
* Utility for getMeasurementSystem and getPaperSize
*/
private static UResourceBundle measurementTypeBundleForLocale(ULocale locale, String measurementType){
// Much of this is taken from getCalendarType in impl/CalendarUtil.java
UResourceBundle measTypeBundle = null;
String region = ULocale.getRegionForSupplementalData(locale, true);
try {
UResourceBundle rb = UResourceBundle.getBundleInstance(
ICUData.ICU_BASE_NAME,
"supplementalData",
ICUResourceBundle.ICU_DATA_CLASS_LOADER);
UResourceBundle measurementData = rb.get("measurementData");
UResourceBundle measDataBundle = null;
try {
measDataBundle = measurementData.get(region);
measTypeBundle = measDataBundle.get(measurementType);
} catch (MissingResourceException mre) {
// use "001" as fallback
measDataBundle = measurementData.get("001");
measTypeBundle = measDataBundle.get(measurementType);
}
} catch (MissingResourceException mre) {
// fall through
}
return measTypeBundle;
}
/**
* Enumeration for representing the measurement systems.
* @stable ICU 2.8
*/
public static final class MeasurementSystem{
/**
* Measurement system specified by Le Système International d'Unités (SI)
* otherwise known as Metric system.
* @stable ICU 2.8
*/
public static final MeasurementSystem SI = new MeasurementSystem();
/**
* Measurement system followed in the United States of America.
* @stable ICU 2.8
*/
public static final MeasurementSystem US = new MeasurementSystem();
/**
* Mix of metric and imperial units used in Great Britain.
* @stable ICU 55
*/
public static final MeasurementSystem UK = new MeasurementSystem();
private MeasurementSystem() {}
}
/**
* Returns the measurement system used in the locale specified by the locale.
*
* @param locale The locale for which the measurement system to be retrieved.
* @return MeasurementSystem the measurement system used in the locale.
* @stable ICU 3.0
*/
public static final MeasurementSystem getMeasurementSystem(ULocale locale){
UResourceBundle sysBundle = measurementTypeBundleForLocale(locale, MEASUREMENT_SYSTEM);
switch (sysBundle.getInt()) {
case 0: return MeasurementSystem.SI;
case 1: return MeasurementSystem.US;
case 2: return MeasurementSystem.UK;
default:
// return null if the object is null or is not an instance
// of integer indicating an error
return null;
}
}
/**
* A class that represents the size of letter head
* used in the country
* @stable ICU 2.8
*/
public static final class PaperSize{
private int height;
private int width;
private PaperSize(int h, int w){
height = h;
width = w;
}
/**
* Returns the height of the paper
* @return the height
* @stable ICU 2.8
*/
public int getHeight(){
return height;
}
/**
* Returns the width of the paper
* @return the width
* @stable ICU 2.8
*/
public int getWidth(){
return width;
}
}
/**
* Returns the size of paper used in the locale. The paper sizes returned are always in
* milli-meters.
* @param locale The locale for which the measurement system to be retrieved.
* @return The paper size used in the locale
* @stable ICU 3.0
*/
public static final PaperSize getPaperSize(ULocale locale){
UResourceBundle obj = measurementTypeBundleForLocale(locale, PAPER_SIZE);
int[] size = obj.getIntVector();
return new PaperSize(size[0], size[1]);
}
/**
* Returns LocaleDisplayPattern for this locale, e.g., {0}({1})
* @return locale display pattern as a String.
* @stable ICU 4.2
*/
public String getLocaleDisplayPattern() {
if (langBundle == null) {
throw langBundleException;
}
ICUResourceBundle locDispBundle = (ICUResourceBundle) langBundle.get(LOCALE_DISPLAY_PATTERN);
String localeDisplayPattern = locDispBundle.getStringWithFallback(PATTERN);
return localeDisplayPattern;
}
/**
* Returns LocaleDisplaySeparator for this locale.
* @return locale display separator as a char.
* @stable ICU 4.2
*/
public String getLocaleSeparator() {
if (langBundle == null) {
throw langBundleException;
}
String sub0 = "{0}";
String sub1 = "{1}";
ICUResourceBundle locDispBundle = (ICUResourceBundle) langBundle.get(LOCALE_DISPLAY_PATTERN);
String localeSeparator = locDispBundle.getStringWithFallback(SEPARATOR);
int index0 = localeSeparator.indexOf(sub0);
int index1 = localeSeparator.indexOf(sub1);
if (index0 >= 0 && index1 >= 0 && index0 <= index1) {
return localeSeparator.substring(index0 + sub0.length(), index1);
}
return localeSeparator;
}
private static VersionInfo gCLDRVersion = null;
/**
* Returns the current CLDR version
* @stable ICU 4.2
*/
public static VersionInfo getCLDRVersion() {
// fetching this data should be idempotent.
if(gCLDRVersion == null) {
// from ZoneMeta.java
UResourceBundle supplementalDataBundle = UResourceBundle.getBundleInstance(ICUData.ICU_BASE_NAME, "supplementalData", ICUResourceBundle.ICU_DATA_CLASS_LOADER);
UResourceBundle cldrVersionBundle = supplementalDataBundle.get("cldrVersion");
gCLDRVersion = VersionInfo.getInstance(cldrVersionBundle.getString());
}
return gCLDRVersion;
}
}