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.net.URL;

import org.gvsig.installer.lib.api.Version;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dataTypes.AbstractCoercion;

import org.gvsig.tools.dataTypes.CoercionContext;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.DataTypesManager;

import org.gvsig.tools.packageutils.PackageManager;

@SuppressWarnings("UseSpecificCatch")

public class CoerceToVersion extends AbstractCoercion {

  @Override

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

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

      return value;

    }

    try {

      PackageManager manager = ToolsLocator.getPackageManager();

      Version version = manager.createVersion();

      String s = value.toString();

      if (s == null) {

        return null;

      }

      s = s.trim().toLowerCase();

      if (s.length() == 0) {

        return null;

      }

      version.parse(s);

      value = version;

    } catch (Exception ex) {

      throw new CoercionException(ex.getMessage(), ex);

    }

    return value;

  }

}