/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program is distributed
* in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.util.units;
import java.math.BigDecimal;
import java.text.ParseException;
import java.util.HashMap;
import java.util.Locale;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class UnitsFormat {
private static final HashMap formatters;
static {
formatters = new HashMap();
formatters.put(new Integer(UnitsConstants.UNIT_NONE),
new NoFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_CURRENCY),
new CurrencyFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_BYTES),
new BytesFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_BITS),
new BitRateFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_BYTES2BITS),
new BytesToBitsFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_DURATION),
new DurationFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_DATE),
new DateFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_PERCENTAGE),
new PercentageFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_PERCENT),
new PercentFormatter());
formatters.put(new Integer(UnitsConstants.UNIT_APPROX_DUR),
new ApproxDurationFormatter());
}
private static Log log = LogFactory.getLog(UnitsFormat.class);
public static FormattedNumber format(UnitNumber val){
return format(val, Locale.getDefault());
}
public static FormattedNumber format(UnitNumber val, Locale locale){
return format(val, locale, null);
}
private static Formatter getFormatter(int unitType){
Formatter res;
res = (Formatter)formatters.get(new Integer(unitType));
if(res == null){
throw new IllegalStateException("Unhandled unit type: " +
unitType);
}
return res;
}
public static FormattedNumber format(UnitNumber val, Locale locale,
FormatSpecifics specifics)
{
FormattedNumber res;
Formatter formatter;
formatter = getFormatter(val.getUnits());
res = formatter.format(val, locale, specifics);
if(log.isDebugEnabled()){
log.debug("format(" + val.getValue() + ") -> " + res);
}
return res;
}
public static FormattedNumber[] formatSame(double[] values, int unitType,
int scale)
{
return formatSame(values, unitType, scale, Locale.getDefault());
}
public static FormattedNumber[] formatSame(double[] values, int unitType,
int scale, Locale locale)
{
return(formatSame(values, unitType, scale, locale, null));
}
public static FormattedNumber[] formatSame(double[] values, int unitType,
int scale, Locale locale,
FormatSpecifics specifics)
{
FormattedNumber[] res;
Formatter formatter;
formatter = getFormatter(unitType);
res = formatter.formatSame(values, unitType, scale, locale,
specifics);
if(log.isDebugEnabled()){
StringBuffer buf = new StringBuffer();
buf.append("format({");
for(int i=0; i<values.length; i++){
buf.append(values[i]);
if(i != values.length)
buf.append(", ");
}
buf.append("}) -> {");
for(int i=0; i<res.length; i++){
buf.append(res[i].toString());
if(i != values.length)
buf.append(", ");
}
buf.append("}");
log.debug(buf.toString());
}
return res;
}
static BigDecimal getBaseValue(double value, int unitType, int scale){
return getFormatter(unitType).getBaseValue(value, scale);
}
static BigDecimal getScaledValue(BigDecimal baseValue, int unitType,
int scale)
{
return getFormatter(unitType).getScaledValue(baseValue, scale);
}
public static UnitNumber parse(String value, int unitType)
throws ParseException
{
return parse(value, unitType, null);
}
public static UnitNumber parse(String value, int unitType,
ParseSpecifics specifics)
throws ParseException
{
return parse(value, unitType, Locale.getDefault(), specifics);
}
public static UnitNumber parse(String value, int unitType, Locale locale,
ParseSpecifics specifics)
throws ParseException
{
Formatter formatter;
formatter = getFormatter(unitType);
return formatter.parse(value, locale, specifics);
}
public static void main(String[] args) throws Exception {
for(int i=0; i<args.length; i++){
UnitNumber num = UnitsFormat.parse(args[i],
UnitsConstants.UNIT_BYTES);
System.out.println("Raw = " + num.getBaseValue());
System.out.println("Fmt = " +
UnitsFormat.format(num, Locale.getDefault()));
System.out.println("Scaled to bytes = " +
num.getScaledValue(UnitsConstants.SCALE_NONE));
System.out.println("Scaled to kilo = " +
num.getScaledValue(UnitsConstants.SCALE_KILO));
System.out.println("Scaled to giga = " +
num.getScaledValue(UnitsConstants.SCALE_GIGA));
}
}
}