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International Component for Unicode for Java (ICU4J) is a mature, widely used Java library
providing Unicode and Globalization support
/*
*******************************************************************************
* Copyright (C) 2004-2014, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
package com.ibm.icu.impl;
import java.util.ArrayList;
import java.util.MissingResourceException;
import com.ibm.icu.util.ULocale;
import com.ibm.icu.util.UResourceBundle;
import com.ibm.icu.util.UResourceBundleIterator;
/**
* This class abstracts access to calendar (Calendar and DateFormat) data.
* @internal ICU 3.0
*/
public class CalendarData {
/**
* Construct a CalendarData from the given locale.
* @param loc locale to use. The 'calendar' keyword will be ignored.
* @param type calendar type. NULL indicates the gregorian calendar.
* No default lookup is done.
*/
public CalendarData(ULocale loc, String type) {
this((ICUResourceBundle)UResourceBundle.getBundleInstance(ICUResourceBundle.ICU_BASE_NAME, loc), type);
}
public CalendarData(ICUResourceBundle b, String type) {
fBundle = b;
if((type == null) || (type.equals("")) || (type.equals("gregorian"))) {
fMainType = "gregorian";
fFallbackType = null;
} else {
fMainType = type;
fFallbackType = "gregorian";
}
}
/**
* Load data for calendar. Note, this object owns the resources, do NOT call ures_close()!
*
* @param key Resource key to data
* @internal
*/
public ICUResourceBundle get(String key) {
try {
return fBundle.getWithFallback("calendar/" + fMainType + "/" + key);
} catch(MissingResourceException m) {
if(fFallbackType != null) {
return fBundle.getWithFallback("calendar/" + fFallbackType + "/" + key);
}
throw m;
}
}
/**
* Load data for calendar. Note, this object owns the resources, do NOT call ures_close()!
* There is an implicit key of 'format'
* data is located in: "calendar/key/format/subKey"
* for example, calendar/dayNames/format/abbreviated
*
* @param key Resource key to data
* @param subKey Resource key to data
* @internal
*/
public ICUResourceBundle get(String key, String subKey) {
try {
return fBundle.getWithFallback("calendar/" + fMainType + "/" + key + "/format/" + subKey);
} catch(MissingResourceException m) {
if(fFallbackType != null) {
return fBundle.getWithFallback("calendar/" + fFallbackType + "/" + key + "/format/" + subKey);
}
throw m;
}
}
/**
* Load data for calendar. Note, this object owns the resources, do NOT call ures_close()!
* data is located in: "calendar/key/contextKey/subKey"
* for example, calendar/dayNames/stand-alone/narrow
*
* @param key Resource key to data
* @param contextKey Resource key to data
* @param subKey Resource key to data
* @internal
*/
public ICUResourceBundle get(String key, String contextKey, String subKey) {
try {
return fBundle.getWithFallback("calendar/" + fMainType + "/" + key + "/" + contextKey + "/" + subKey);
} catch(MissingResourceException m) {
if(fFallbackType != null) {
return fBundle.getWithFallback("calendar/" + fFallbackType + "/" + key + "/" + contextKey + "/" + subKey);
}
throw m;
}
}
/**
* Load data for calendar. Note, this object owns the resources...
* data is located in: "calendar/key/set/contextKey/subKey"
* for example, calendar/cyclicNameSets/years/format/abbreviated
*
* @param key Resource key to data
* @param set Resource key to data
* @param contextKey Resource key to data
* @param subKey Resource key to data
* @internal
*/
public ICUResourceBundle get(String key, String set, String contextKey, String subKey) {
try {
return fBundle.getWithFallback("calendar/" + fMainType + "/" + key + "/" + set + "/" + contextKey + "/" + subKey);
} catch(MissingResourceException m) {
if(fFallbackType != null) {
return fBundle.getWithFallback("calendar/" + fFallbackType + "/" + key + "/" + set + "/" + contextKey + "/" + subKey);
}
throw m;
}
}
public String[] getStringArray(String key) {
return get(key).getStringArray();
}
public String[] getStringArray(String key, String subKey) {
return get(key, subKey).getStringArray();
}
public String[] getStringArray(String key, String contextKey, String subKey) {
return get(key, contextKey, subKey).getStringArray();
}
public String[] getEras(String subkey){
ICUResourceBundle bundle = get("eras/"+subkey);
return bundle.getStringArray();
}
public String[] getDateTimePatterns(){
ICUResourceBundle bundle = get("DateTimePatterns");
ArrayList list = new ArrayList();
UResourceBundleIterator iter = bundle.getIterator();
while (iter.hasNext()) {
UResourceBundle patResource = iter.next();
int resourceType = patResource.getType();
switch (resourceType) {
case UResourceBundle.STRING:
list.add(patResource.getString());
break;
case UResourceBundle.ARRAY:
String[] items = patResource.getStringArray();
list.add(items[0]);
break;
}
}
return list.toArray(new String[list.size()]);
}
/**
* Returns the default date-time pattern such as {1}, {0}.
* {1} is always the date and {0} is always the time.
*/
public String getDateTimePattern() {
// this is a hack to get offset 8 from the dateTimePatterns array.
return _getDateTimePattern(-1);
}
/**
* Returns the date-time pattern by style where style is one of the style fields defined
* in DateFormat. If date-time patterns by style are not available, it returns what
* {@link #getDateTimePattern()} would return.
* @param style the style e.g DateFormat.LONG.
* @return the pattern, e.g {1}, {0}.
*/
public String getDateTimePattern(int style) {
// mask away high order bits such as the DateFormat.RELATIVE bit.
// We do it this way to avoid making this class depend on DateFormat. It makes this
// code more brittle, but it is no more brittle than how we access patterns by style.
return _getDateTimePattern(style & 7);
}
private String _getDateTimePattern(int offset) {
String[] patterns = null;
try {
patterns = getDateTimePatterns();
} catch (MissingResourceException ignored) {
// ignore. patterns remains null.
}
if (patterns == null || patterns.length < 9) {
// Return hard-coded default. patterns array not available or it has too few
// elements.
return "{1} {0}";
}
if (patterns.length < 13) {
// Offset 8 contains default pattern if we don't have per style patterns.
return patterns[8];
}
// DateTimePatterns start at index 9 in the array.
return patterns[9 + offset];
}
public String[] getOverrides(){
ICUResourceBundle bundle = get("DateTimePatterns");
ArrayList list = new ArrayList();
UResourceBundleIterator iter = bundle.getIterator();
while (iter.hasNext()) {
UResourceBundle patResource = iter.next();
int resourceType = patResource.getType();
switch (resourceType) {
case UResourceBundle.STRING:
list.add(null);
break;
case UResourceBundle.ARRAY:
String[] items = patResource.getStringArray();
list.add(items[1]);
break;
}
}
return list.toArray(new String[list.size()]);
}
public ULocale getULocale() {
return fBundle.getULocale();
}
private ICUResourceBundle fBundle;
private String fMainType;
private String fFallbackType;
}