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ICU-3378 Added getKeywordValues API

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X-SVN-Rev: 25066
This commit is contained in:
Kedar Rajwade 2008-12-09 23:58:51 +00:00
parent 192f2b9896
commit eecb6e4d1f
1 changed files with 73 additions and 0 deletions
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73
icu4j/src/com/ibm/icu/text/Collator.java
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@ -7,6 +7,8 @@
package com.ibm.icu.text;
import java.util.Comparator;
import java.util.Enumeration;
import java.util.LinkedHashSet;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.Set;
@ -14,6 +16,7 @@ import java.util.Set;
import com.ibm.icu.impl.ICUDebug;
import com.ibm.icu.impl.ICUResourceBundle;
import com.ibm.icu.util.ULocale;
import com.ibm.icu.util.UResourceBundle;
import com.ibm.icu.util.VersionInfo;
/**
@ -1026,4 +1029,74 @@ public abstract class Collator implements Comparator, Cloneable
private ULocale actualLocale;
// -------- END ULocale boilerplate --------
/**
* Given a keyword and a locale, returns an array of string values in a preferred order that would make a difference.
* These are all and only those values where the open (creation) of the service with the locale
* formed from the input locale plus input keyword and that value has different behavior than
* creation with the input locale alone. For example, calling this with "de", "collation" returns {"phonebook","standard"}
* @param keyword one of the keyword {"collation", "calendar", "currency"}
* @param locLD input ULocale
* @param commonlyUsed if set to true it will return commonly used values with the given locale else all the available values
* @return an array of string values for a given keyword and locale
* @draft ICU 4.2
*/
public static final String[] getKeywordValues(String keyword, ULocale locID, boolean commonlyUsed) {
ICUResourceBundle r = null;
Enumeration e;
LinkedHashSet set = new LinkedHashSet();
String baseLoc = locID.getBaseName();
String kwVal = locID.getKeywordValue(keyword);
String baseName,resName;
String defStr = null;
baseName = ICUResourceBundle.ICU_BASE_NAME+"/coll";
resName = "collations";
if(!locID.getBaseName().equals(locID.getName())){
ULocale parent = new ULocale(baseLoc);
r = (ICUResourceBundle) UResourceBundle.getBundleInstance(baseName, parent);
}else{
r = (ICUResourceBundle) UResourceBundle.getBundleInstance(baseName, locID);
}
do {
if ((kwVal == null) || (kwVal.length() == 0)
|| kwVal.equals("default")) {
kwVal = ""; // default tag is treated as no keyword
}else{
set.add(kwVal);
break;
}
String canonicalLoc;
if(((canonicalLoc=ULocale.canonicalize(baseLoc)).indexOf("@"))>=0){
set.add(canonicalLoc.substring(canonicalLoc.indexOf("=")+1).toLowerCase());
break;
}
ICUResourceBundle irb = (ICUResourceBundle) r.get(resName);
if(irb.containsKey(resName) || irb.getULocale().getBaseName().equals("root")){
e = irb.getKeys();
while(e.hasMoreElements()){
Object o;
if((o = e.nextElement()).equals("default")){
try {
defStr = irb.getString("default");
if(defStr!=null){
set.add(defStr);
}
} catch (MissingResourceException t) {
// Ignore error and continue search.
}
}else{
set.add(o);
}
//v.add(e.nextElement());
}
}
r = (ICUResourceBundle) r.getParent();
} while ((r != null));
//return values
return (String[]) set.toArray(new String[set.size()]);
}
}