Java Code Examples for java.text.RuleBasedCollator#setStrength()

/**
   * Verify that JVM has support for the Collator for the datbase's locale.
   *
* @param strength Collator strength or -1 for locale default.
   * @return Collator for database's locale
   * @throws StandardException if JVM does not have support for Collator
   */
  private RuleBasedCollator verifyCollatorSupport(int strength)
  throws StandardException {
  	Locale[] availLocales =  Collator.getAvailableLocales();
  	//Verify that Collator can be instantiated for the given locale.
  	boolean localeFound = false;
  	for (int i=0; i<availLocales.length;i++)
  	{
  		if (availLocales[i].equals(databaseLocale)) {
  			localeFound = true;
  			break;
  		}
  	}
  	if (!localeFound)
	throw StandardException.newException(
			SQLState.COLLATOR_NOT_FOUND_FOR_LOCALE, 
			(databaseLocale != null ? databaseLocale.toString() : "null"));
  	
  	RuleBasedCollator collator = (RuleBasedCollator)Collator.getInstance(databaseLocale);

if (strength != -1)
	collator.setStrength(strength);

return collator;
  }
 

/**
   * Verify that JVM has support for the Collator for the datbase's locale.
   *
* @param strength Collator strength or -1 for locale default.
   * @return Collator for database's locale
   * @throws StandardException if JVM does not have support for Collator
   */
  private RuleBasedCollator verifyCollatorSupport(int strength)
  throws StandardException {
  	Locale[] availLocales =  Collator.getAvailableLocales();
  	//Verify that Collator can be instantiated for the given locale.
  	boolean localeFound = false;
  	for (int i=0; i<availLocales.length;i++)
  	{
  		if (availLocales[i].equals(databaseLocale)) {
  			localeFound = true;
  			break;
  		}
  	}
  	if (!localeFound)
	throw StandardException.newException(
			SQLState.COLLATOR_NOT_FOUND_FOR_LOCALE, 
			(databaseLocale != null ? databaseLocale.toString() : "null"));
  	
  	RuleBasedCollator collator = (RuleBasedCollator)Collator.getInstance(databaseLocale);

if (strength != -1)
	collator.setStrength(strength);

return collator;
  }
 

/**
   * Verify that JVM has support for the Collator for the datbase's locale.
   *
* @param strength Collator strength or -1 for locale default.
   * @return Collator for database's locale
   * @throws StandardException if JVM does not have support for Collator
   */
  private RuleBasedCollator verifyCollatorSupport(int strength)
  throws StandardException {
  	Locale[] availLocales =  Collator.getAvailableLocales();
  	//Verify that Collator can be instantiated for the given locale.
  	boolean localeFound = false;
      for (Locale availLocale : availLocales) {
          if (availLocale.equals(databaseLocale)) {
              localeFound = true;
              break;
          }
      }
  	if (!localeFound)
	throw StandardException.newException(
			SQLState.COLLATOR_NOT_FOUND_FOR_LOCALE,
			databaseLocale.toString());

  	RuleBasedCollator collator = (RuleBasedCollator)Collator.getInstance(databaseLocale);

if (strength != -1)
	collator.setStrength(strength);

return collator;
  }
 

public UserIdComparator(UserDirectoryService userDirectoryService) {
    this.userDirectoryService = userDirectoryService;
    // TODO this should be in a service and should repect the current user's locale
    try {
        collator = new RuleBasedCollator(((RuleBasedCollator) Collator.getInstance()).getRules().replaceAll("<'\u005f'", "<' '<'\u005f'"));
    } catch (ParseException e) {
        // error with init RuleBasedCollator with rules
        // use the default Collator
        collator = Collator.getInstance();
        log.warn("{} UserIdComparator cannot init RuleBasedCollator. Will use the default Collator instead. {}", this, e);
    }
    // This is to ignore case of the values
    collator.setStrength(Collator.SECONDARY);
}
 

/**
 * Constructs a RecordComparator based on particular metadata and settings
 * 
 * @param metaData
 * @return
 */
private RecordOrderedKey buildRecordOrderedKey(String joiners[], DataRecordMetadata metaData) {
	boolean[] ordering = new boolean[joiners.length]; 
	Arrays.fill(ordering, true);//TODO change the key dialog

	if (locale != null) {
		RuleBasedCollator col = (RuleBasedCollator)Collator.getInstance(MiscUtils.createLocale(locale));
		col.setStrength(caseSensitive ? Collator.TERTIARY : Collator.SECONDARY);
		col.setDecomposition(Collator.CANONICAL_DECOMPOSITION);
		return new RecordOrderedKey(joiners, ordering, metaData, col);
	} else {
		return new RecordOrderedKey(joiners, ordering, metaData);
	}
}
 

public UserIdComparator(UserDirectoryService userDirectoryService) {
    this.userDirectoryService = userDirectoryService;
    // TODO this should be in a service and should repect the current user's locale
    try {
        collator = new RuleBasedCollator(((RuleBasedCollator) Collator.getInstance()).getRules().replaceAll("<'\u005f'", "<' '<'\u005f'"));
    } catch (ParseException e) {
        // error with init RuleBasedCollator with rules
        // use the default Collator
        collator = Collator.getInstance();
        log.warn("{} UserIdComparator cannot init RuleBasedCollator. Will use the default Collator instead. {}", this, e);
    }
    // This is to ignore case of the values
    collator.setStrength(Collator.SECONDARY);
}
 

public SiteComparator(String criterion, String asc, Locale locale) {

               this(criterion, asc);

               m_loc = locale;

               try {

       	RuleBasedCollator defaultCollator = (RuleBasedCollator) Collator.getInstance(locale); 

              String rules = defaultCollator.getRules();

              localeCollator = new RuleBasedCollator(rules.replaceAll("<'\u005f'", "<' '<'\u005f'"));

              localeCollator.setStrength(Collator.TERTIARY);

               } catch (Exception e) {

               	log.warn("SiteComparator failed to create RuleBasedCollator for locale " + locale.toString(), e);
               	localeCollator = null;

               }

       }
 

/**
 * Constructs a RecordComparator based on particular metadata and settings
 * 
 * @param metaData
 * @return
 * @throws ComponentNotReadyException 
 */
private RecordOrderedKey buildRecordKey(OrderedKey joiners[], DataRecordMetadata metaData) throws ComponentNotReadyException {
	boolean[] ordering = new boolean[joiners.length];
	Arrays.fill(ordering, ascendingInputs);

	String metadataLocale = metaData.getLocaleStr();
	int[] fields = new int[joiners.length];
	boolean[] aOrdering = new boolean[joiners.length];
	for (int i = 0; i < fields.length; i++) {
		fields[i] = metaData.getFieldPosition(joiners[i].getKeyName());
		if (joiners[i].getOrdering() == OrderEnum.ASC) {
			aOrdering[i] = true;
		} else if (joiners[i].getOrdering() == null) {	
			boolean isAsc;
			if (driverKey != null && driverKey.getKeyOrderings().length > i) {
				// set the same ordering as the master has
				isAsc = driverKey.getKeyOrderings()[i];
			} else {
				// old fashion - field name without ordering - use global setting
				isAsc = ascendingInputs;
			}
			joiners[i].setOrdering(isAsc ? OrderEnum.ASC : OrderEnum.DESC);
			aOrdering[i] = isAsc;
		} else if (joiners[i].getOrdering() != OrderEnum.DESC) {
			throw new ComponentNotReadyException("Wrong order definition in join key: " + joiners[i].getOrdering());
		}
		if (metadataLocale == null)	metadataLocale = metaData.getField(fields[i]).getLocaleStr();
	}
	
	if (metadataLocale != null || locale != null) {
		metadataLocale = metadataLocale != null ? metadataLocale : locale;
		RuleBasedCollator col = (RuleBasedCollator)Collator.getInstance(MiscUtils.createLocale(metadataLocale));
		col.setStrength(caseSensitive ? Collator.TERTIARY : Collator.SECONDARY);
		col.setDecomposition(Collator.CANONICAL_DECOMPOSITION);
		RecordOrderedKey recordKey = new RecordOrderedKey(fields, aOrdering, metaData);
		recordKey.setCollator(col);
		return recordKey;
	} else {
		return new RecordOrderedKey(fields, aOrdering, metaData);
	}
}
 

public CollatorCache ()
{
  super (aLocale -> {
    if (aLocale == null)
    {
      LOGGER.error ("Very weird: no locale passed in. Falling back to system locale.");
      return Collator.getInstance (SystemHelper.getSystemLocale ());
    }

    // Collator.getInstance is synchronized and therefore extremely slow ->
    // that's why we put a cache around it!
    final Collator aCollator = Collator.getInstance (aLocale);
    if (!(aCollator instanceof RuleBasedCollator))
    {
      LOGGER.warn ("Collator.getInstance did not return a RulleBasedCollator but a " +
                   aCollator.getClass ().getName ());
      return aCollator;
    }

    try
    {
      final String sRules = ((RuleBasedCollator) aCollator).getRules ();
      if (!sRules.contains ("<'.'<"))
      {
        // Nothing to replace - use collator as it is
        LOGGER.warn ("Failed to identify the Collator rule part to be replaced. Locale used: " + aLocale);
        return aCollator;
      }

      final String sNewRules = StringHelper.replaceAll (sRules, "<'.'<", "<' '<'.'<");
      final RuleBasedCollator aNewCollator = new RuleBasedCollator (sNewRules);
      aNewCollator.setStrength (Collator.TERTIARY);
      aNewCollator.setDecomposition (Collator.FULL_DECOMPOSITION);
      return aNewCollator;
    }
    catch (final ParseException ex)
    {
      throw new IllegalStateException ("Failed to parse collator rule set for locale " + aLocale, ex);
    }
  }, 500, CollatorHelper.class.getName ());
}
 

public SiteComparator(String criterion, String asc, Locale locale) {

               this(criterion, asc);

               m_loc = locale;

               try {

       	RuleBasedCollator defaultCollator = (RuleBasedCollator) Collator.getInstance(locale); 

              String rules = defaultCollator.getRules();

              localeCollator = new RuleBasedCollator(rules.replaceAll("<'\u005f'", "<' '<'\u005f'"));

              localeCollator.setStrength(Collator.TERTIARY);

               } catch (Exception e) {

               	log.warn("SiteComparator failed to create RuleBasedCollator for locale " + locale.toString(), e);
               	localeCollator = null;

               }

       }