Examples of com.ibm.icu.util.UResourceBundle

com.ibm.icu.util.UResourceBundle
e.icu-project.org/repos/icu/icuhtml/trunk/design/bnf_rb.txt">BNF definition. More on resource bundle concepts and syntax can be found in the Users Guide.
The packaging of ICU *.res files can be of two types ICU4C:
```
 root.res | -------- |        | fr.res  en.res | -------- |        | fr_CA.res fr_FR.res 
```
JAVA/JDK:
```
 LocaleElements.res | ------------------- |                   | LocaleElements_fr.res  LocaleElements_en.res | --------------------------- |                            | LocaleElements_fr_CA.res   LocaleElements_fr_FR.res 
```
Depending on the organization of your resources, the syntax to getBundleInstance will change. To open ICU style organization use:
```
 UResourceBundle bundle = UResourceBundle.getBundleInstance("com/mycompany/resources", "en_US", myClassLoader); 
```
To open Java/JDK style organization use:
```
 UResourceBundle bundle = UResourceBundle.getBundleInstance("com.mycompany.resources.LocaleElements", "en_US", myClassLoader); 
```
Please use pass a class loader for loading non-ICU resources. Java security does not allow loading of resources across jar files. You must provide your class loader to load the resources @stable ICU 3.0 @author ram

        
        this.logln("uloc_getCLDRVersion() returned: '"+cldrVersion+"'");
        
        // why isn't this public for tests somewhere?
        final ClassLoader testLoader = ICUResourceBundleTest.class.getClassLoader();
        UResourceBundle bundle = (UResourceBundle) UResourceBundle.getBundleInstance("com/ibm/icu/dev/data/testdata", ULocale.ROOT, testLoader);
        
        testExpect = VersionInfo.getInstance(bundle.getString("ExpectCLDRVersionAtLeast"));
        testCurrent = VersionInfo.getInstance(bundle.getString("CurrentCLDRVersion"));


        
        logln("(data) ExpectCLDRVersionAtLeast { "+testExpect+""); 
        if(cldrVersion.compareTo(testExpect)<0) {
            errln("CLDR version is too old, expect at least "+testExpect+".");

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   * in plurals.res.
   */
  private void checkBuildRulesIdMaps() {
    if (localeIdToRulesId == null) {
      try {
        UResourceBundle pluralb = getPluralBundle();
        UResourceBundle localeb = pluralb.get("locales");
        localeIdToRulesId = new TreeMap();  // sort for convenience of getAvailableULocales
        rulesIdToEquivalentULocale = new HashMap(); // not visible
        for (int i = 0; i < localeb.getSize(); ++i) {
          UResourceBundle b = localeb.get(i);
          String id = b.getKey();
          String value = b.getString().intern();
          localeIdToRulesId.put(id, value);


          if (!rulesIdToEquivalentULocale.containsKey(value)) {
            rulesIdToEquivalentULocale.put(value, new ULocale(id));
          }

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   */
  public PluralRules getRulesForRulesId(String rulesId) {
    PluralRules rules = (PluralRules) rulesIdToRules.get(rulesId);
    if (rules == null) {
      try {
        UResourceBundle pluralb = getPluralBundle();
        UResourceBundle rulesb = pluralb.get("rules");
        UResourceBundle setb = rulesb.get(rulesId);


        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < setb.getSize(); ++i) {
          UResourceBundle b = setb.get(i);
          if (i > 0) {
            sb.append("; ");
          }
          sb.append(b.getKey());
          sb.append(": ");
          sb.append(b.getString());
        }
        rules = PluralRules.parseDescription(sb.toString());
      } catch (ParseException e) {
      } catch (MissingResourceException e) {
      }

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     */
    private static boolean isCommonlyUsed(ICUResourceBundle bundle, String key) {
        boolean commonlyUsed = false;
        if (bundle != null) {
            try {
                UResourceBundle cuRes = bundle.getWithFallback(key + "/" + RESKEY_COMMONLY_USED);
                int cuValue = cuRes.getInt();
                commonlyUsed = (cuValue != 0);
            } catch (MissingResourceException ex) {
                // throw away the exception
            }
        }

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     * @param id zone id
     * @return top-level resource bundle
     */
    public static UResourceBundle openOlsonResource(String id)
    {
        UResourceBundle res = null;
        try {
            ICUResourceBundle top = (ICUResourceBundle)UResourceBundle.getBundleInstance(ICUResourceBundle.ICU_BASE_NAME, "zoneinfo", ICUResourceBundle.ICU_DATA_CLASS_LOADER);
            res = getZoneByName(top, id);
            // Dereference if this is an alias.  Docs say result should be 1
            // but it is 0 in 2.8 (?).
             if (res.getSize() <= 1) {
                int deref = res.getInt() + 0;
                UResourceBundle ares = top.get(kZONES); // dereference Zones section
                res = (ICUResourceBundle) ares.get(deref);
            }
        } catch (MissingResourceException e) {
            res = null;
        }
        return res;

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     * @param id Time zone ID
     * @return the zone's bundle if found, or undefined if error.  Reuses oldbundle.
     */
    private static UResourceBundle getZoneByName(UResourceBundle top, String id) throws MissingResourceException {
        // load the Rules object
        UResourceBundle tmp = top.get(kNAMES);
        
        // search for the string
        int idx = findInStringArray(tmp, id);
        
        if((idx == -1)) {
            // not found 
            throw new MissingResourceException(kNAMES, ((ICUResourceBundle)tmp).getResPath(), id);
            //ures_close(oldbundle);
            //oldbundle = NULL;
        } else {
            tmp = top.get(kZONES); // get Zones object from top
            tmp = tmp.get(idx); // get nth Zone object
        }
        return tmp;
    }

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     * meta-data. Return true if successful.
     */
    private static boolean getOlsonMeta(ICUResourceBundle top) {
        if (OLSON_ZONE_START < 0 && top != null) {
            try {
                UResourceBundle res = top.get(kZONES);
                OLSON_ZONE_COUNT = res.getSize();
                OLSON_ZONE_START = 0;
            } catch (MissingResourceException e) {
                // throws away the exception
            }
        }

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     */
    public static TimeZone getSystemTimeZone(String id) {
        TimeZone z = (TimeZone)zoneCache.get(id);
        if (z == null) {
            try{
                UResourceBundle top = UResourceBundle.getBundleInstance(ICUResourceBundle.ICU_BASE_NAME, "zoneinfo", ICUResourceBundle.ICU_DATA_CLASS_LOADER);
                UResourceBundle res = openOlsonResource(id);
                z = new OlsonTimeZone(top, res);
                z.setID(id);
                zoneCache.put(id, z);
            }catch(Exception ex){
                return null;

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     * Create olson tzid to metazone mappings from metazoneInfo.res (3.8.1 or later)
     */
    private static Map createOlsonToMetaMap() {
        // Create olson id to metazone mapping table
        HashMap olsonToMeta = null;
        UResourceBundle metazoneMappingsBundle = null;
        try {
            UResourceBundle bundle = UResourceBundle.getBundleInstance(ICUResourceBundle.ICU_BASE_NAME, "metazoneInfo");
            metazoneMappingsBundle = bundle.get("metazoneMappings");
        } catch (MissingResourceException mre) {
            // do nothing
        }
        if (metazoneMappingsBundle != null) {
            String[] tzids = getAvailableIDs();
            for (int i = 0; i < tzids.length; i++) {
                // Skip aliases
                String canonicalID = TimeZone.getCanonicalID(tzids[i]);
                if (canonicalID == null || !tzids[i].equals(canonicalID)) {
                    continue;
                }
                String tzkey = tzids[i].replace('/', ':');
                try {
                    UResourceBundle zoneBundle = metazoneMappingsBundle.get(tzkey);
                    LinkedList mzMappings = new LinkedList();
                    for (int idx = 0; ; idx++) {
                        try {
                            UResourceBundle mz = zoneBundle.get("mz" + idx);
                            String[] mzstr = mz.getStringArray();
                            if (mzstr == null || mzstr.length != 3) {
                                continue;
                            }
                            OlsonToMetaMappingEntry mzmap = new OlsonToMetaMappingEntry();
                            mzmap.mzid = mzstr[0].intern();

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            if (META_TO_OLSON_REF != null) {
                metaToOlson = (HashMap)META_TO_OLSON_REF.get();
            }
            if (metaToOlson == null) {
                metaToOlson = new HashMap();
                UResourceBundle metazonesBundle = null;
                try {
                    UResourceBundle supplementalBundle = UResourceBundle.getBundleInstance(ICUResourceBundle.ICU_BASE_NAME,
                        "supplementalData");
                    UResourceBundle  mapTimezonesBundle = supplementalBundle.get("mapTimezones");
                    metazonesBundle = mapTimezonesBundle.get("metazones");
                } catch (MissingResourceException mre) {
                    // do nothing
                }
                if (metazonesBundle != null) {
                    Enumeration mzenum = metazonesBundle.getKeys();

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