Java Code Examples for com.ibm.icu.text.NumberFormat#getNumberInstance()

public Number parseNumber(String image, final boolean lenient) {
	image = image.trim();
	if (!image.isEmpty()) {
		String toParse = image;
		if (toParse.length() > 1 && toParse.charAt(0) == '+')
			toParse = toParse.substring(1);
		NumberFormat nf = NumberFormat.getNumberInstance(iLocale);
		ParsePosition p = new ParsePosition(0);
		Number ret = nf.parse(toParse, p);
		int errIndex = p.getErrorIndex();
		//System.out.println("Ind=" + index + " ErrInd=" + errIndex);
		if (errIndex == -1) {
			if (p.getIndex() >= toParse.length() || lenient)
				return ret;
		} else if (errIndex != 0 && lenient)
			return ret;
	}
	throw new IllegalArgumentException("Illegal number string '" + image + "'");
}
 

/**
 * Format a number to localized number by scale
 * @param locale
 * @param number
 * @param scale
 * @return Localized number
 */
public String formatNumber(String locale, String number, int scale) {
    Number num = this.parseNumber(number);
	ULocale uLocale = new ULocale(locale);
	NumberFormat numberFormat = NumberFormat.getNumberInstance(uLocale);
	numberFormat.setMaximumFractionDigits(scale);
	numberFormat.setMinimumFractionDigits(scale);
	numberFormat.setRoundingMode(BigDecimal.ROUND_HALF_UP);
	return numberFormat.format(num);
}
 

private String convertDataSetRepresentation( String dsRepresentation,
		int seriesDefinitionIndex )
{
	if ( dsRepresentation != null )
	{
		String[] strTok = ChartUtil.getStringTokens( dsRepresentation );
		StringBuffer sb = new StringBuffer( );
		for ( int i = 0; i < strTok.length; i++ )
		{
			String strDataElement = strTok[i];
			SimpleDateFormat sdf = new SimpleDateFormat( "MM/dd/yyyy" ); //$NON-NLS-1$
			NumberFormat nf = NumberFormat.getNumberInstance( );

			try
			{
				Date dateElement = sdf.parse( strDataElement );
				dateElement.setTime( dateElement.getTime( )
						+ ( dateElement.getTime( ) * seriesDefinitionIndex )
						/ 10 );
				sb.append( sdf.format( dateElement ) );
			}
			catch ( ParseException e )
			{
				try
				{
					Number numberElement = nf.parse( strDataElement );
					sb.append( numberElement.doubleValue( )
							* ( seriesDefinitionIndex + 1 ) );
				}
				catch ( ParseException e1 )
				{
					e1.printStackTrace( );
				}
			}
			if ( i < strTok.length - 1 )
			{
				sb.append( "," ); //$NON-NLS-1$
			}

		}
		return sb.toString( );
	}
	return null;
}
 

private String getConvertedOrthogonalSampleDataRepresentation(
		String sOldRepresentation )
{
	StringTokenizer strtok = new StringTokenizer( sOldRepresentation, "," ); //$NON-NLS-1$
	NumberFormat nf = NumberFormat.getNumberInstance( );
	StringBuffer sbNewRepresentation = new StringBuffer( "" ); //$NON-NLS-1$
	int iValueCount = 0;
	while ( strtok.hasMoreTokens( ) )
	{
		String sElement = strtok.nextToken( ).trim( );
		try
		{
			if ( nf.parse( sElement ).doubleValue( ) < 0 )
			{
				// If the value is negative, use an arbitrary positive value
				sElement = String.valueOf( 4.0 + iValueCount );
				iValueCount++;
			}
		}
		catch ( ParseException e )
		{
			sElement = String.valueOf( 4.0 + iValueCount );
			iValueCount++;
		}
		sbNewRepresentation.append( "H" ); //$NON-NLS-1$
		sbNewRepresentation.append( sElement );
		sbNewRepresentation.append( " " ); //$NON-NLS-1$

		sbNewRepresentation.append( " L" ); //$NON-NLS-1$
		sbNewRepresentation.append( sElement );
		sbNewRepresentation.append( " " ); //$NON-NLS-1$

		sbNewRepresentation.append( " O" ); //$NON-NLS-1$
		sbNewRepresentation.append( sElement );
		sbNewRepresentation.append( " " ); //$NON-NLS-1$

		sbNewRepresentation.append( " C" ); //$NON-NLS-1$
		sbNewRepresentation.append( sElement );
		sbNewRepresentation.append( "," ); //$NON-NLS-1$
	}
	return sbNewRepresentation.toString( ).substring( 0,
			sbNewRepresentation.length( ) - 1 );
}
 

public String formatNumber(final Number n, final LotusNumberOptions lno) {
	NumberFormat nf;
	/*
	 * It would have been more convenient to use NumberFormat.getInstance(locale, style),
	 * but this method is private in com.ibm.icu_3.8.1.v20120530.jar.
	 * (Seems to be public as of ICU 4.2.)
	 */
	if (lno.format == 'C')
		nf = NumberFormat.getCurrencyInstance(iLocale);
	else if (lno.format == 'S')
		nf = NumberFormat.getScientificInstance(iLocale);
	else if (lno.format == '%')
		nf = NumberFormat.getPercentInstance(iLocale);
	else
		nf = NumberFormat.getNumberInstance(iLocale);
	nf.setGroupingUsed(lno.useGrouping);
	nf.setMaximumIntegerDigits(1000);
	if (lno.fractionDigits != -1) {
		nf.setMinimumFractionDigits(lno.fractionDigits);
		nf.setMaximumFractionDigits(lno.fractionDigits);
	} else
		nf.setMaximumFractionDigits(1000);
	String ret = nf.format(n);
	do {
		if (lno.format != 'G' || ret.length() <= 15)
			break;
		/*
		 * In this case, Lotus implicitly switches to scientific style.
		 * When useGrouping is in effect, the limit decreases from 15 to 12 in Lotus
		 * (i.e. the grouping bytes are likewise counted), but we are not going to
		 *  imitate this strange behaviour.
		 */
		String tester = ret;
		if (lno.useGrouping) {
			nf.setGroupingUsed(false);
			tester = nf.format(n);
		}
		int minus = (tester.charAt(0) == '-') ? 1 : 0;
		int lh = tester.length();
		if (lh - minus <= 15)
			break;
		int komma = minus;
		for (; komma < lh; komma++)
			if (!Character.isDigit(tester.charAt(komma)))
				break;
		if (komma - minus <= 15)
			break;
		nf = NumberFormat.getScientificInstance(iLocale);
		nf.setGroupingUsed(lno.useGrouping);
		ret = nf.format(n);
	} while (false);
	if (lno.negativeAsParentheses && ret.charAt(0) == '-')
		ret = '(' + ret.substring(1) + ')';
	return ret;
}