tim@335: package de.intevation.gnv.state;
tim@335: 
sascha@779: import de.intevation.gnv.geobackend.base.Result;
sascha@779: 
sascha@779: import de.intevation.gnv.state.describedata.DefaultSingleValueDescribeData;
sascha@779: 
tim@335: import java.util.ArrayList;
tim@335: import java.util.Collection;
ingo@470: import java.util.List;
tim@335: 
tim@335: import org.apache.log4j.Logger;
tim@335: 
tim@335: /**
ingo@796:  * This state handles single user input. The user is allowed to select just one
ingo@796:  * value.
ingo@796:  *
sascha@780:  * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
sascha@778:  *
tim@335:  */
tim@335: public class SingleInputState extends StateBase {
tim@335: 
tim@335:     /**
tim@335:      * the logger, used to log exceptions and additonaly information
tim@335:      */
tim@335:     private static Logger log = Logger.getLogger(SingleInputState.class);
tim@335: 
tim@335:     private static final long serialVersionUID = -6169497306324917318L;
tim@335: 
tim@335:     /**
tim@335:      * Constructor
tim@335:      */
tim@335:     public SingleInputState() {
tim@335:     }
tim@335: 
ingo@815: 
tim@335:     @Override
ingo@607:     protected List<Object> purifyResult(Collection<Result> result, String uuid) {
tim@335:         log.debug("SingleInputState.purifyResult");
ingo@607:         List<Object> describeData = new ArrayList<Object>();
ingo@607: 
tim@335:         String value = null;
tim@335:         if (result != null && result.size() == 1) {
tim@335:             Result tmpItem = result.iterator().next();
tim@335:             value = tmpItem.getObject("MAX").toString();
tim@335:         } else {
tim@335:             value = "";
tim@335:         }
tim@335: 
ingo@473:         describeData.add(new DefaultSingleValueDescribeData(
ingo@473:             this.dataName, value, getID()));
ingo@607: 
ingo@607:         return describeData;
tim@335:     }
tim@335: }
ingo@796: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :