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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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 2.1 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.jbpm.context.exe.converter;

import java.util.Date;

import org.jbpm.context.exe.Converter;

public class DateToLongConverter implements Converter {

  private static final long serialVersionUID = 1L;

  public boolean supports(Object value) {
    return value instanceof Date || value == null;
  }

  public Object convert(Object o) {
    if (o == null) return null;

    Date date = (Date) o;
    return new Long(date.getTime());
  }

  public Object revert(Object o) {
    if (o == null) return null;

    Long number = (Long) o;
    return new Date(number.longValue());
  }
}