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.DateFormat;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Locale;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.CoercionContext;

/**

 * Coerces a value to a {@link Date}. If the value is not a {@link Date}, it

 * will use the {@link Object#toString()} method to convert the resulting

 * {@link String} to a Date object using the current locale default formatter

 * for Date through the {@link DateFormat#getDateInstance(int)} method and the

 * {@link DateFormat#SHORT} style.

 *

 * @author gvSIG Team

 * @version $Id$

 */

@SuppressWarnings("UseSpecificCatch")

public class CoerceToDate extends AbstractCoerceToDate {

  @Override

  protected DateFormat[] getFormatters(Locale locale) {

    return new DateFormat[]{

      DateFormat.getDateInstance(DateFormat.SHORT, locale),

      DateFormat.getDateInstance(DateFormat.MEDIUM, locale),

      DateFormat.getDateInstance(DateFormat.LONG, locale),

      DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.LONG, locale),

      new SimpleDateFormat("yyyy-MM-dd"), // PostgreSQL format

      new SimpleDateFormat("yyyyMMddHHmmss"), // DBF timestamp format

      new SimpleDateFormat("yyyyMMdd"), // DBF date format

      new SimpleDateFormat("HHmmss") // DBF time format 

    };

  }

  @Override

  protected Date now() {

    Date d = new Date();

    d.setHours(0);

    d.setMinutes(0);

    d.setSeconds(0);

    return d;

  }

  @Override

  protected String getDateType() {

    return "Date";

  }

  @Override

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

    if( value == null ) {

      return null;

    }

    if (value instanceof Date) {

      Date d = (Date) value;

      Date n = new Date(d.getYear(), d.getMonth(), d.getDate(), 0, 0, 0);

      return n;

    }

    return super.coerce(value, context);

  }

}