gvSIG projects pool

/**

 * 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 3

 * 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.topology.lib.spi;

import java.net.URL;

import java.util.List;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.topology.lib.api.TopologyDataSet;

import org.gvsig.topology.lib.api.TopologyRuleFactory;

import org.json.JSONObject;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 *

 * @author jjdelcerro

 */

public abstract class AbstractTopologyRuleFactory implements TopologyRuleFactory {

    protected static final Logger LOGGER = LoggerFactory.getLogger(AbstractTopologyRuleFactory.class);

    private final String id;

    protected String name;

    protected String description;

    private final List<Integer> geometryTypeDataSet1;

    private final List<Integer> geometryTypeDataSet2;

    protected AbstractTopologyRuleFactory(

            String id,

            String name,

            String description,

            List<Integer> geometryTypeDataSet1,

            List<Integer> geometryTypeDataSet2

        ) {

        this.id = id;

        this.name = name;

        this.description = description;

        this.geometryTypeDataSet1 = geometryTypeDataSet1;

        this.geometryTypeDataSet2 = geometryTypeDataSet2;

        this.load_from_resource();

    }

    protected AbstractTopologyRuleFactory(

            String id,

            String name,

            String description,

            List<Integer> geometryTypeDataSet1

        ) {

        this(id, name, description, geometryTypeDataSet1, null);

    }

    @Override

    public String toString() {

        return this.name;

    }

    @Override

    public String getId() {

        return this.id;

    }

    @Override

    public String getName() {

        return this.name;

    }

    @Override

    public String getDescription() {

        return this.description;

    }

    @Override

    public List<Integer> getGeometryTypeDataSet1() {

        return this.geometryTypeDataSet1;

    }

    @Override

    public List<Integer> getGeometryTypeDataSet2() {

        return this.geometryTypeDataSet2;

    }

    @Override

    public boolean hasSecondaryDataSet() {

        return this.geometryTypeDataSet2 != null && !this.geometryTypeDataSet2.isEmpty();

    }

    @Override

    public boolean canApplyToDataSet(TopologyDataSet dataSet) {

        GeometryManager geomManager = GeometryLocator.getGeometryManager();

        for (Integer geometryType : geometryTypeDataSet1) {

            boolean canApply = geomManager.isSubtype(geometryType, dataSet.getGeometryType());

            if( canApply ) {

                return true;

            }

        }        

        return false;

    }

    @Override

    public boolean canApplyToSecondaryDataSet(TopologyDataSet dataSet) {

        if( !this.hasSecondaryDataSet() ) {

            return false;

        }

        GeometryManager geomManager = GeometryLocator.getGeometryManager();

        for (Integer geometryType : geometryTypeDataSet2) {

            boolean canApply = geomManager.isSubtype(geometryType, dataSet.getGeometryType() );

            if( canApply ) {

                return true;

            }

        }        

        return false;

    }

    private void load_from_resource() {

        URL url = RuleResourceLoaderUtils.getRuleURL(this.id);

        JSONObject json = RuleResourceLoaderUtils.getRule(url);

        load_from_resource(url, json);

    }

    protected void load_from_resource(URL jsonUrl, JSONObject json) {

        if( json == null ) {

            return;

        }

        if( json.has("name") ) {

            this.name = json.getString("name");

        }

        if( json.has("description") ) {

            this.description = RuleResourceLoaderUtils.getDescription(jsonUrl, json);

        }

    }

}