Java Code Examples for com.ibm.icu.text.DateFormat#parse()

/**
 * Parse a date/time string.
 *
 * @param source
 * @return
 * @throws ParseException
 */
public static Date parse( String source, TimeZone timeZone ) throws BirtException,
		ParseException
{
	DateFormat dateFormat = getSimpleDateFormat( source, timeZone );
	Date resultDate = null;
	try
	{
		if ( timeZone != null )
		{
			dateFormat.setTimeZone( timeZone );
		}
		if ( dateFormat != null )
		{
			source = cleanDate( source );
			resultDate = dateFormat.parse( source );
		}
		return resultDate;
	}
	catch ( ParseException e )
	{
		throw new CoreException( ResourceConstants.CONVERT_FAILS,
				new Object[]{source.toString( ), "Date"} );
	}
}
 

/**
 * Parses a date/time string
 *
 * @param source
 * @param locale
 * @param timeZone
 * @return
 * @throws BirtException
 */
public static Date toDate( String source, ULocale locale, TimeZone timeZone )
		throws BirtException
{
	DateFormat dateFormat = getDateFormatObject( source, locale, timeZone );
	Date resultDate = null;
	try
	{
		resultDate = dateFormat.parse( source );
		return resultDate;
	}
	catch ( ParseException e )
	{
		throw new CoreException(
				ResourceConstants.CONVERT_FAILS,
				new Object[]{
						source.toString( ), "Date"
				} );
	}
}
 

/**
 * Validates the locale-dependent value for the date time type, validate the
 * <code>value</code> in the locale-dependent way and convert the
 * <code>value</code> into a Date object.
 * 
 * @return object of type Date or null if <code>value</code> is null.
 */

public Object validateInputString( Module module, DesignElement element,
		PropertyDefn defn, String value ) throws PropertyValueException
{
	if ( StringUtil.isBlank( value ) )
	{
		return null;
	}

	// Parse the input in locale-dependent way.
	ULocale locale = module == null ? ThreadResources.getLocale( ) : module
			.getLocale( );
	DateFormat formatter = DateFormat.getDateInstance( DateFormat.SHORT,
			locale );
	try
	{
		return formatter.parse( value );
	}
	catch ( ParseException e )
	{
		logger.log( Level.SEVERE, "Invalid date value:" + value ); //$NON-NLS-1$
		throw new PropertyValueException( value,
				PropertyValueException.DESIGN_EXCEPTION_INVALID_VALUE,
				DATE_TIME_TYPE );
	}
}
 

/**
 * Convert string to date with check.
 * JDK may do incorrect converse, for example:
 * 		2005/1/1 Local.US, format pattern is MM/dd/YY.
 * Above conversion can be done without error, but obviously
 * the result is not right. This method will do such a simple check,
 * in DateFormat.SHORT case instead of all cases.
 * 		Year is not lower than 0.
 * 		Month is from 1 to 12.
 * 		Day is from 1 to 31.  
 * @param source
 * @param locale
 * @return Date
 * @throws BirtException
 */
public static Date toDateWithCheck( String source, ULocale locale )
		throws BirtException
{
	DateFormat dateFormat = DateFormatFactory.getDateInstance( DateFormat.SHORT,
			locale );
	Date resultDate = null;
	try
	{
		resultDate = dateFormat.parse( source );
	}
	catch ( ParseException e )
	{
		return toDate( source, locale );
	}

	// check whether conversion is correct
	if ( DateUtil.checkValid( dateFormat, source ) == false )
	{
		throw new CoreException( 
				ResourceConstants.CONVERT_FAILS,
				new Object[]{
						source.toString( ), "Date"
				});
	}

	return resultDate;
}
 

/**
 * Parses the date from string.
 * 
 * @param dateString
 *            the date string
 * @return the date
 */
public Date parseDateFromString(final String dateString) {
	DateFormat df = getDateTimeFormat();
	synchronized (df) {
		try {
			return df.parse(dateString);
		} catch (ParseException e) {
			DominoUtils.handleException(e);
			return null;
		}
	}
}