Application: gvSIG desktop » Library: org.gvsig.tools

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.tools.dataTypes.impl.coercion;

import java.math.BigDecimal;

import java.sql.Time;

import java.text.NumberFormat;

import java.util.Date;

import java.util.Locale;

import java.text.DateFormat;

import org.gvsig.tools.dataTypes.AbstractCoercion;

import org.gvsig.tools.dataTypes.CoercionContext;

import org.gvsig.tools.dataTypes.CoercionContextLocale;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.DataTypesManager;

public class CoerceToString extends AbstractCoercion {

        @Override

  public Object coerce(Object value, CoercionContext context) throws CoercionException {

    if (value == null || value instanceof String) {

      return value;

    }

    if( value instanceof CharSequence ) {

      return value.toString();

    }

                try {

      Locale locale;

      if (context instanceof CoercionContextLocale) {

        locale = ((CoercionContextLocale) context).locale();

      } else {

        locale = Locale.getDefault();

      }

      String s;

                        if (value instanceof Time) {

                                DateFormat df = DateFormat.getTimeInstance(DateFormat.LONG, locale);

                                s = df.format(value);

                        } else if (value instanceof Date) {

                                DateFormat df = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.LONG, locale);

                                s = df.format(value);

                        } else if (value instanceof Float || value instanceof Double ) {

        NumberFormat nf = NumberFormat.getInstance(locale);

        s = nf.format(((Number) value).doubleValue());

                        } else if (value instanceof BigDecimal ) {

        s = ((BigDecimal) value).toPlainString();

                  } else {

                                s = value.toString();

                        }

                        return s;

                } catch (Exception e) {

                        throw new CoercionException(e);

                }

        }

}