ingo@399: package de.intevation.flys.artifacts.states;
ingo@399: 
ingo@399: import java.util.List;
ingo@399: 
ingo@399: import org.apache.log4j.Logger;
ingo@399: 
ingo@399: import org.w3c.dom.Element;
ingo@399: 
ingo@399: import de.intevation.artifacts.Artifact;
ingo@399: import de.intevation.artifacts.CallContext;
ingo@399: 
ingo@399: import de.intevation.artifactdatabase.ProtocolUtils;
ingo@399: 
ingo@399: import de.intevation.artifacts.common.utils.XMLUtils;
ingo@399: 
ingo@399: import de.intevation.flys.model.Gauge;
ingo@399: import de.intevation.flys.model.Range;
ingo@399: 
ingo@399: import de.intevation.flys.artifacts.FLYSArtifact;
ingo@399: 
ingo@399: 
ingo@399: /**
ingo@399:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@399:  */
ingo@399: public class WQAdapted extends DefaultState {
ingo@399: 
ingo@399:     /** The logger used in this state.*/
ingo@399:     private static Logger logger = Logger.getLogger(WQAdapted.class);
ingo@399: 
ingo@399: 
ingo@399:     /**
ingo@399:      * This method creates one element for each gauge of the selected river that
ingo@399:      * is intersected by the given kilometer range. Each element is a tuple of
ingo@399:      * (from;to) where <i>from</i> is the lower bounds of the gauge or the lower
ingo@399:      * kilometer range. <i>to</i> is the upper bounds of the gauge or the upper
ingo@399:      * kilometer range.
ingo@399:      *
ingo@399:      * @param cr The ElementCreator.
ingo@399:      * @param artifact The FLYS artifact.
ingo@399:      * @param name The name of the data item.
ingo@399:      * @param context The CallContext.
ingo@399:      *
ingo@399:      * @return a list of elements that consist of tuples of the intersected
ingo@399:      * gauges of the selected river.
ingo@399:      */
ingo@399:     protected Element[] createItems(
ingo@399:         XMLUtils.ElementCreator cr,
ingo@399:         Artifact    artifact,
ingo@399:         String      name,
ingo@399:         CallContext context)
ingo@399:     {
ingo@399:         logger.debug("WQAdapted.createItems");
ingo@399: 
ingo@399:         FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
ingo@399: 
ingo@399:         double[]    dist   = flysArtifact.getDistance();
ingo@399:         List<Gauge> gauges = flysArtifact.getGauges();
ingo@399: 
ingo@399:         int num = gauges != null ? gauges.size() : 0;
ingo@399: 
ingo@399:         if (num == 0) {
ingo@399:             logger.warn("Selected distance matches no gauges.");
ingo@399:             return null;
ingo@399:         }
ingo@399: 
ingo@399:         Element[] elements = new Element[num];
ingo@399: 
ingo@399:         int idx = 0;
ingo@399: 
ingo@399:         for (Gauge gauge: gauges) {
ingo@399:             Range range  = gauge.getRange();
ingo@399:             double lower = range.getA().doubleValue();
ingo@399:             double upper = range.getB().doubleValue();
ingo@399: 
ingo@399:             double from = dist[0] < lower ? lower : dist[0];
ingo@399:             double to   = dist[1] > upper ? upper : dist[1];
ingo@399: 
ingo@399:             String key = Double.toString(from) + ";" + Double.toString(to);
ingo@399: 
ingo@399:             elements[idx++] = createItem(cr, new String[] {key, ""});
ingo@399:         }
ingo@399: 
ingo@399:         return elements;
ingo@399:     }
ingo@399: 
ingo@399: 
ingo@399:     protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
ingo@399:         Element item  = ProtocolUtils.createArtNode(cr, "item", null, null);
ingo@399:         Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
ingo@399:         Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
ingo@399: 
ingo@399:         String[] arr = (String[]) obj;
ingo@399: 
ingo@399:         label.setTextContent(arr[0]);
ingo@399:         value.setTextContent(arr[1]);
ingo@399: 
ingo@399:         item.appendChild(label);
ingo@399:         item.appendChild(value);
ingo@399: 
ingo@399:         return item;
ingo@399:     }
ingo@399: 
ingo@399: 
ingo@399:     @Override
ingo@399:     protected String getUIProvider() {
ingo@399:         return "wq_panel_adapted";
ingo@399:     }
ingo@399: }
ingo@399: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :