AnalysisFunction.java

//$HeadURL$
/*----------------    FILE HEADER  ------------------------------------------
 This file is part of deegree.
 Copyright (C) 2001-2008 by:
 Department of Geography, University of Bonn
 http://www.giub.uni-bonn.de/deegree/
 lat/lon GmbH
 http://www.lat-lon.de

 This library 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 library 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 library; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 Contact:

 Andreas Poth
 lat/lon GmbH
 Aennchenstr. 19
 53177 Bonn
 Germany
 E-Mail: poth@lat-lon.de

 Prof. Dr. Klaus Greve
 Department of Geography
 University of Bonn
 Meckenheimer Allee 166
 53115 Bonn
 Germany
 E-Mail: greve@giub.uni-bonn.de
 ---------------------------------------------------------------------------*/

package org.deegree.igeo.modules.analysis;

import static org.deegree.framework.log.LoggerFactory.getLogger;

import java.util.LinkedList;
import java.util.List;

import org.deegree.framework.log.ILogger;
import org.deegree.igeo.commands.digitize.UpdateFeatureCommand;
import org.deegree.igeo.dataadapter.DataAccessAdapter;
import org.deegree.igeo.dataadapter.FeatureAdapter;
import org.deegree.igeo.mapmodel.Layer;
import org.deegree.kernel.CommandProcessor;
import org.deegree.model.feature.Feature;
import org.deegree.model.feature.FeatureCollection;
import org.deegree.model.feature.schema.PropertyType;

/**
 * <code>AnalysisFunction</code>
 * 
 * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
 * @author last edited by: $Author$
 * 
 * @version $Revision$, $Date$
 */
public abstract class AnalysisFunction {

    private static final ILogger LOG = getLogger( AnalysisFunction.class );

    private CommandProcessor cmds;

    /**
     * @param cmds
     */
    public AnalysisFunction( CommandProcessor cmds ) {
        this.cmds = cmds;
    }

    /**
     * @param properties
     * @param layers
     * @throws AnalysisFunctionException
     */
    public void apply( List<PropertyType> properties, List<Layer> layers )
                            throws AnalysisFunctionException {
        LinkedList<PropertyType> pts = new LinkedList<PropertyType>( properties );
        for ( Layer l : layers ) {
            PropertyType pt = pts.poll();
            for ( DataAccessAdapter adapter : l.getDataAccess() ) {
                if ( adapter instanceof FeatureAdapter ) {
                    FeatureCollection col = ( (FeatureAdapter) adapter ).getFeatureCollection();
                    for ( int i = 0; i < col.size(); ++i ) {
                        apply( col.getFeature( i ), pt );
                    }
                    try {
                        cmds.executeSychronously( new UpdateFeatureCommand( adapter, col ), true );
                    } catch ( Exception e ) {
                        LOG.logError( "Unknown error", e );
                    }
                }
            }
        }
    }

    /**
     * @param f
     * @param pt
     * @throws AnalysisFunctionException
     */
    public abstract void apply( Feature f, PropertyType pt )
                            throws AnalysisFunctionException;

    /**
     * <code>AnalysisFunctionException</code>
     * 
     * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
     * @author last edited by: $Author$
     * 
     * @version $Revision$, $Date$
     */
    public static class AnalysisFunctionException extends Exception {
        private static final long serialVersionUID = 3945508653967191426L;

        /**
         * @param msg
         */
        public AnalysisFunctionException( String msg ) {
            super( msg );
        }
    }

}