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.text.NumberFormat;

import java.util.Locale;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.DataTypesManager.Coercion;

import org.gvsig.tools.dataTypes.DataTypesManager.CoercionWithLocale;

public class CoerceToString implements CoercionWithLocale {

        public Object coerce(Object value) throws CoercionException {

            if( value == null ) {

                    return null;

            }

                try {

                        if( !(value instanceof String )) {

                                value = value.toString();

                        }

                        return value;

                } catch (Exception e) {

                        throw new CoercionException(e);

                }

        }

        public Object coerce(Object value, Locale locale) throws CoercionException {

            if( value == null ) {

                    return null;

            }

                try {

                        if( !(value instanceof String )) {

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

                                        NumberFormat nf = NumberFormat.getInstance(locale);

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

                                } else {

                                        value = value.toString();

                                }

                        }

                        return value;

                } catch (Exception e) {

                        throw new CoercionException(e);

                }

        }

}