Java tutorial
/******************************************************************************* * * Copyright 2010 Alexandru Craciun, and individual contributors as indicated * by the @authors tag. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 3 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. ******************************************************************************/ package org.netxilia.api.impl.format; import java.text.NumberFormat; import java.util.Locale; import org.apache.commons.lang.math.NumberUtils; import org.netxilia.api.display.StyleDefinition; public class CurrencyFormatter extends NumberFormatter { private static final long serialVersionUID = -260961767872663089L; private static final String ATT_DECIMALS = "decimals"; private static final String ATT_COUNTRY = "country"; private final int decimalCount; private final String country; public CurrencyFormatter(StyleDefinition definition) { super(definition); this.decimalCount = NumberUtils.toInt(definition.getAttribute(ATT_DECIMALS), -1); this.country = definition.getAttribute(ATT_COUNTRY); } public int getDecimalCount() { return decimalCount; } @Override protected NumberFormat buildFormat() { // TODO find a way to reuse formatters NumberFormat format = NumberFormat.getCurrencyInstance(getLocaleObject()); if (decimalCount >= 0) { format.setMaximumFractionDigits(decimalCount); } // format.setCurrency(Currency.getInstance(getPattern().getPattern())); return format; } @Override public void init() { if (country != null) { if (country.equals("EUR")) { setLocaleObject(new Locale("fr", "FR", "EUR")); } else { Locale setLocale = Locale.getDefault(); for (Locale locale : Locale.getAvailableLocales()) { if (country.equalsIgnoreCase(locale.getCountry())) { setLocale = locale; break; } } setLocaleObject(setLocale); } } else { setLocaleObject(Locale.getDefault()); } } }