gvsig-tools / org.gvsig.tools / library / trunk / org.gvsig.tools / org.gvsig.tools.lib / src / main / java / org / gvsig / tools / dataTypes / impl / coercion / CoerceToString.java @ 2297
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.tools.dataTypes.impl.coercion; |
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import java.math.BigDecimal; |
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import java.sql.Time; |
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import java.sql.Timestamp; |
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import java.text.NumberFormat; |
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import java.util.Date; |
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import java.util.Locale; |
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import java.text.DateFormat; |
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import java.text.DecimalFormatSymbols; |
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import java.text.SimpleDateFormat; |
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import java.time.format.DateTimeFormatter; |
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import java.time.format.FormatStyle; |
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import javax.swing.JFormattedTextField; |
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import org.gvsig.tools.dataTypes.AbstractCoercion; |
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import org.gvsig.tools.dataTypes.Coercion; |
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import org.gvsig.tools.dataTypes.CoercionContext; |
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import org.gvsig.tools.dataTypes.CoercionContextLocale; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.DataTypeUtils; |
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public class CoerceToString extends AbstractCoercion { |
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@Override
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public Object coerce(Object value) throws CoercionException { |
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if (value == null) { |
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return null; |
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} |
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if (value instanceof CharSequence) { |
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return value.toString();
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} |
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if (value instanceof Number) { |
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return coerce(value, DataTypeUtils.coerceContextDefaultDecimal());
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} |
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return coerce(value, DataTypeUtils.coerceContextDefaultLocale());
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} |
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@Override
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public Object coerce(Object value, CoercionContext context) throws CoercionException { |
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if (value == null) { |
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return null; |
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} |
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if (value instanceof CharSequence) { |
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return value.toString();
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} |
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if (value instanceof CharSequence) { |
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return value.toString();
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} |
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if (context == null) { |
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if (value instanceof Number) { |
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context = DataTypeUtils.coerceContextDefaultDecimal(); |
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} else {
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context = DataTypeUtils.coerceContextDefaultLocale(); |
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} |
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} |
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try {
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Locale locale;
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if (context instanceof CoercionContextLocale) { |
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locale = ((CoercionContextLocale) context).locale(); |
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} else {
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locale = Locale.getDefault();
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} |
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String s;
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if (value instanceof Time) { |
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s = this.getTimeFormat(locale).format(value);
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} else if (value instanceof Timestamp) { |
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s = this.getDateTimeFormat(locale).format(value);
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} else if (value instanceof java.sql.Date) { |
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s = this.getDateFormat(locale).format(value);
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} else if (value instanceof Date) { |
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s = this.getDateTimeFormat(locale).format(value);
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} else if (value instanceof Float || value instanceof Double) { |
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double d = ((Number)value).doubleValue(); |
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NumberFormat nf = NumberFormat.getInstance(locale); |
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if (d > 1.8014398509481984E16 || d < -1.8014398509481984E16) { |
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// Esto viene a ser la maxima precision de la mantisa, Math.pow(2, 54),
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// asi que para valores mas grandes utilizamos la notacion cientifica.
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s = String.format("%E", d); |
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} else {
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nf.setMaximumFractionDigits(16);
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nf.setGroupingUsed(false);
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s = nf.format(((Number) value).doubleValue());
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} |
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} else if (value instanceof BigDecimal) { |
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DecimalFormatSymbols dfs = new DecimalFormatSymbols(locale); |
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char decimalSeparator = dfs.getDecimalSeparator();
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s = ((BigDecimal) value).toPlainString();
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if (decimalSeparator!='.'){ |
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s = s.replace('.', decimalSeparator);
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} |
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} else if (value instanceof Locale) { |
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s = CoerceToLocale.toString((Locale) value);
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} else {
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s = value.toString(); |
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} |
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return s;
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} catch (Exception e) { |
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throw new CoercionException(e); |
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} |
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} |
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private DateFormat getTimeFormat(Locale locale) { |
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DateFormat df = DateFormat.getTimeInstance(DateFormat.MEDIUM, locale); |
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try {
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SimpleDateFormat sdf = (SimpleDateFormat) df; |
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// Forzamos a que las horas, minutos y segundos sean con dos digitos,
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// y los milisegundos con tres.
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String s = sdf.toPattern();
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if( !s.contains("HH") ) { |
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if( s.contains("H") ) { |
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s = s.replace("H", "HH"); |
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} |
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} |
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if( !s.contains("mm") ) { |
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if( s.contains("m") ) { |
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s = s.replace("m", "mm"); |
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} |
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} |
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if( !s.contains("ss") ) { |
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if( s.contains("s") ) { |
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s = s.replace("s", "ss"); |
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} |
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} |
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if( !s.contains("SSS") ) { |
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if( s.contains("SS") ) { |
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s = s.replace("SS", "SSS"); |
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} else if( s.contains("S") ) { |
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s = s.replace("S", "SSS"); |
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} |
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} |
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sdf.applyPattern(s); |
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} catch(Exception ex) { |
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} |
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return df;
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} |
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private DateFormat getDateFormat(Locale locale) { |
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DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, locale); |
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try {
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SimpleDateFormat sdf = (SimpleDateFormat) df; |
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String s = sdf.toPattern();
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// Forzamos a que el anyo sea con 4 digitos, dos el mes y dos el dia.
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if( !s.contains("yyyy") ) { |
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if( s.contains("yy") ) { |
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s = s.replace("yy", "yyyy"); |
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} else if( s.contains("y") ) { |
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s = s.replace("y", "yyyy"); |
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} |
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} |
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if( !s.contains("dd") ) { |
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if( s.contains("d") ) { |
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s = s.replace("d", "dd"); |
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} |
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} |
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if( !s.contains("MM") ) { |
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if( s.contains("M") ) { |
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s = s.replace("M", "MM"); |
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} |
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} |
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sdf.applyPattern(s); |
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} catch(Exception ex) { |
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} |
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return df;
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} |
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private DateFormat getDateTimeFormat(Locale locale) { |
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DateFormat df = DateFormat.getDateTimeInstance(DateFormat.SHORT,DateFormat.MEDIUM, locale); |
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try {
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SimpleDateFormat sdf = (SimpleDateFormat) df; |
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String s = sdf.toPattern();
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// Forzamos a que el anyo sea con 4 digitos, dos el mes, dos el dia,
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// dos las horas, dos los minutos, dos los segundos y tres los milisegundos.
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if( !s.contains("yyyy") ) { |
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if( s.contains("yy") ) { |
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s = s.replace("yy", "yyyy"); |
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} else if( s.contains("y") ) { |
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s = s.replace("y", "yyyy"); |
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} |
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} |
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if( !s.contains("dd") ) { |
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if( s.contains("d") ) { |
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s = s.replace("d", "dd"); |
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} |
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} |
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if( !s.contains("MM") ) { |
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if( s.contains("M") ) { |
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s = s.replace("M", "MM"); |
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} |
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} |
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if( !s.contains("HH") ) { |
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if( s.contains("H") ) { |
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s = s.replace("H", "HH"); |
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} |
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} |
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if( !s.contains("mm") ) { |
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if( s.contains("m") ) { |
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s = s.replace("m", "mm"); |
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} |
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} |
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if( !s.contains("ss") ) { |
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if( s.contains("s") ) { |
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s = s.replace("s", "ss"); |
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} |
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} |
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if( !s.contains("SSS") ) { |
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if( s.contains("SS") ) { |
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s = s.replace("SS", "SSS"); |
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} else if( s.contains("S") ) { |
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s = s.replace("S", "SSS"); |
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} |
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} |
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sdf.applyPattern(s); |
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} catch(Exception ex) { |
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} |
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return df;
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} |
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public static void main(String[] args) throws CoercionException { |
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Coercion toString = new CoerceToString();
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java.sql.Date d = new java.sql.Date(new java.util.Date().getTime()); |
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String x = (String) toString.coerce(d); |
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System.out.println("Date"); |
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System.out.println(d);
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System.out.println(x);
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java.sql.Timestamp ts = new java.sql.Timestamp(new java.util.Date().getTime()); |
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x = (String) toString.coerce(ts);
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System.out.println("Timestamp"); |
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System.out.println(d);
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System.out.println(x);
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java.sql.Time t = new java.sql.Time(new java.util.Date().getTime()); |
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x = (String) toString.coerce(t);
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System.out.println("Time"); |
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System.out.println(d);
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System.out.println(x);
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java.util.Date d0 = new java.util.Date();
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x = (String) toString.coerce(d0);
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System.out.println("DateTime"); |
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System.out.println(d);
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System.out.println(x);
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} |
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} |