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.io.File;

import java.net.URI;

import java.net.URISyntaxException;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.tools.dataTypes.AbstractCoercion;

import org.gvsig.tools.dataTypes.CoercionContext;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.DataTypesManager;

/**

 *

 */

public class CoerceToURI extends AbstractCoercion {

  @Override

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

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

      return value;

    }

    if (value instanceof String) {

      if (((String) value).isEmpty()) {

        return null;

      }

      try {

        // Todo esto es para intentar solucionar la carga de

        // proyectos antiguos donde campos que deber?an ser URIs se

        // guardaban como Strings

        String strValue = StringUtils.trim((String) value);

        String strValue2 = StringUtils.replace(strValue, " ", "%20");

        URI uri = new URI(strValue2);

        String scheme = uri.getScheme();

        if (StringUtils.isEmpty(scheme) || scheme.length() == 1) {

          uri = (new File(strValue)).toURI();

        }

        value = uri;

      } 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;

  }

}