tim@616: /**
tim@616:  *
tim@616:  */
tim@616: package de.intevation.gnv.state.layer;
tim@616: 
tim@616: import java.io.OutputStream;
tim@616: import java.util.Collection;
tim@616: import java.util.Iterator;
tim@616: 
tim@616: import org.apache.log4j.Logger;
tim@616: import org.w3c.dom.Document;
tim@616: import org.w3c.dom.Node;
tim@616: 
tim@616: import de.intevation.artifactdatabase.Config;
tim@616: import de.intevation.artifactdatabase.XMLUtils;
tim@616: import de.intevation.artifacts.ArtifactNamespaceContext;
tim@616: import de.intevation.artifacts.CallContext;
tim@616: import de.intevation.gnv.geobackend.base.Result;
tim@616: import de.intevation.gnv.state.InputData;
tim@616: import de.intevation.gnv.state.OutputStateBase;
tim@616: import de.intevation.gnv.state.exception.StateException;
tim@616: 
tim@616: /**
tim@616:  * @author Tim Englich <tim.englich@intevation.de>
tim@616:  *
tim@616:  */
tim@616: public class LayerOutputState extends OutputStateBase {
tim@616: 
tim@616:     /**
tim@616:      * the logger, used to log exceptions and additonaly information
tim@616:      */
tim@616:     private static Logger log = Logger.getLogger(LayerOutputState.class);
tim@616:     
tim@616:     /**
tim@616:      * The UID of this Class.
tim@616:      */
tim@616:     private static final long serialVersionUID = 9180957321704424049L;
tim@616: 
tim@616:     /**
tim@616:      * The ID for the Query fetching the Layer from the DB
tim@616:      */
tim@616:     private String dataQueryID = null; 
tim@616:     /**
tim@616:      * Constructor
tim@616:      */
tim@616:     public LayerOutputState() {
tim@616:         super();
tim@616:     }
tim@616: 
tim@616:     /**
tim@616:      * @see de.intevation.gnv.state.OutputState#out(org.w3c.dom.Document, 
tim@616:      *      java.util.Collection, java.io.OutputStream, 
tim@616:      *      java.lang.String, de.intevation.artifacts.CallContext)
tim@616:      */
tim@616:     public void out(Document format, Collection<InputData> inputData,
tim@616:                     OutputStream outputStream, String uuid,
tim@616:                     CallContext callContext) throws StateException {
tim@616:         
tim@616:         log.debug("LayerOutputState.out");
tim@616:         String outputMode = XMLUtils.xpathString(
tim@616:                 format, XPATH_OUTPUT_MODE, ArtifactNamespaceContext.INSTANCE);
tim@616:         if (outputMode.equalsIgnoreCase("wms")) {
tim@616:             Collection<Result> data = this.fetchData();
tim@616:             // TODO USE ME
tim@616:         }else if (outputMode.equalsIgnoreCase("zip")){
tim@616:             Collection<Result> data = this.fetchData();
tim@616:             // TODO USE ME
tim@616:         }
tim@616:     }
tim@616:     
tim@616:     
tim@616:     protected Collection<Result> fetchData(){
tim@616:         log.debug("LayerOutputState.fetchData");
tim@616:         // TODO PUT ALL in CACHE
tim@616:         Collection<Result> result = this.getData(this.queryID);
tim@616:         Collection<Result> data = null;
tim@616:         if (result != null){
tim@616:             Iterator<Result> it = result.iterator();
tim@616:             String table = null;
tim@616:             String where = null;
tim@616:             if (it.hasNext()){
tim@616:                 Result resultValue = it.next();
tim@616:                 table = resultValue.getString(0);
tim@616:                 where = resultValue.getString(1);
tim@616:                 // TODO ADD SpatialFilter if Geometry is available
tim@616:             }
tim@616:             
tim@616:             data = null; // TODO Fetch the Data for the Layer and Trim the Geometries
tim@616:                          //      using the Geometry if on is available.
tim@616:         }
tim@616:         return data;
tim@616:     }
tim@616: 
tim@616:     @Override
tim@616:     public void setup(Node configuration) {
tim@616:         log.debug("LayerOutputState.setup");
tim@616:         super.setup(configuration);
tim@616:         this.dataQueryID = Config.getStringXPath(configuration,"queryID-layerdata");
tim@616:     }
tim@616: 
tim@616: }