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.URI;

import java.net.URISyntaxException;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.tools.dataTypes.CoercionException;

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

/**

 *

 */

public class CoerceToURI implements Coercion {

        public Object coerce(Object value) throws CoercionException {

            if( value == null ) {

                    return null;

            }

                if( ! (value instanceof URI) ) {

                        if( value instanceof String ) {

                                try {

                                    //No est? claro comerse los espacios en blanco en el value, pero para proyectos antiguos no se nos ocurre otra solucion

                                        value = new URI(StringUtils.trim((String) value));

                                } catch (URISyntaxException e) {

                                        throw new CoercionException(e);

                                }

                        } else {

                                String s = value.toString();

                                if( s == null ) {

                                    return null;

                                }

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

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

                                    return null;

                                }

                                throw new CoercionException();

                        }

                }

                return value;

        }

}