ingo@136: package de.intevation.flys.artifacts.states;
ingo@136: 
ingo@687: import java.util.List;
ingo@687: 
ingo@136: import org.apache.log4j.Logger;
ingo@136: 
ingo@136: import org.w3c.dom.Element;
ingo@136: 
ingo@628: import gnu.trove.TDoubleArrayList;
ingo@628: 
ingo@313: import de.intevation.artifacts.Artifact;
ingo@136: import de.intevation.artifacts.CallContext;
ingo@136: 
ingo@136: import de.intevation.artifacts.common.utils.XMLUtils;
ingo@136: 
ingo@136: import de.intevation.artifactdatabase.ProtocolUtils;
ingo@136: import de.intevation.artifactdatabase.data.StateData;
ingo@687: import de.intevation.artifactdatabase.state.Facet;
ingo@136: 
ingo@313: import de.intevation.flys.model.River;
ingo@313: 
ingo@313: import de.intevation.flys.artifacts.FLYSArtifact;
ingo@687: import de.intevation.flys.artifacts.WINFOArtifact;
ingo@687: import de.intevation.flys.artifacts.model.ComputeCallback;
ingo@689: import de.intevation.flys.artifacts.model.ComputeCallbackAdapter;
ingo@313: import de.intevation.flys.artifacts.model.RiverFactory;
ingo@136: import de.intevation.flys.artifacts.resources.Resources;
ingo@136: 
ingo@136: /**
ingo@136:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@136:  */
ingo@322: public class LocationDistanceSelect extends RangeState {
ingo@136: 
ingo@136:     /** The logger used in this class.*/
ingo@136:     private static Logger logger = Logger.getLogger(LocationDistanceSelect.class);
ingo@136: 
ingo@136: 
ingo@136:     /** The default step width.*/
ingo@136:     public static final String DEFAULT_STEP = "100";
ingo@136: 
ingo@627:     /** The name of the 'mode' field. */
ingo@627:     public static final String MODE = "ld_mode";
ingo@627: 
ingo@627:     /** The name of the 'locations' field.*/
ingo@627:     public static final String LOCATIONS = "ld_locations";
ingo@627: 
ingo@322:     /** The name of the 'from' field. */
ingo@322:     public static final String FROM = "ld_from";
ingo@322: 
ingo@322:     /** The name of the 'to' field. */
ingo@322:     public static final String TO = "ld_to";
ingo@322: 
ingo@322:     /** The name of the 'step' field. */
ingo@322:     public static final String STEP = "ld_step";
ingo@322: 
ingo@136:     /**
ingo@136:      * The default constructor that initializes an empty State object.
ingo@136:      */
ingo@136:     public LocationDistanceSelect() {
ingo@136:     }
ingo@136: 
ingo@136:     protected Element createData(
ingo@136:         XMLUtils.ElementCreator cr,
ingo@313:         Artifact    artifact,
ingo@136:         StateData   data,
ingo@136:         CallContext context)
ingo@136:     {
ingo@136:         Element select = ProtocolUtils.createArtNode(
ingo@136:             cr, "select", null, null);
ingo@136: 
ingo@136:         cr.addAttr(select, "name", data.getName(), true);
ingo@136: 
ingo@136:         Element label = ProtocolUtils.createArtNode(
ingo@136:             cr, "label", null, null);
ingo@136: 
ingo@136:         Element choices = ProtocolUtils.createArtNode(
ingo@136:             cr, "choices", null, null);
ingo@136: 
ingo@136:         label.setTextContent(Resources.getMsg(
ingo@136:             context.getMeta(),
ingo@136:             data.getName(),
ingo@136:             data.getName()));
ingo@136: 
ingo@136:         select.appendChild(label);
ingo@136: 
ingo@136:         return select;
ingo@136:     }
ingo@136: 
ingo@136: 
sascha@660:     @Override
ingo@136:     protected Element[] createItems(
ingo@136:         XMLUtils.ElementCreator cr,
ingo@313:         Artifact    artifact,
ingo@136:         String      name,
ingo@136:         CallContext context)
ingo@136:     {
ingo@313:         double[] minmax = getMinMaxDistance(artifact);
ingo@313: 
ingo@313:         double minVal = Double.MIN_VALUE;
ingo@313:         double maxVal = Double.MAX_VALUE;
ingo@313: 
ingo@313:         if (minmax != null) {
ingo@313:             minVal = minmax[0];
ingo@313:             maxVal = minmax[1];
ingo@313:         }
ingo@313:         else {
ingo@313:             logger.warn("Could not read min/max distance values!");
ingo@313:         }
ingo@136: 
ingo@136:         if (name.equals("ld_from")) {
ingo@313:             Element min = createItem(
ingo@313:                 cr,
ingo@313:                 new String[] {"min", new Double(minVal).toString()});
ingo@313: 
ingo@136:             return new Element[] { min };
ingo@136:         }
ingo@136:         else if (name.equals("ld_to")) {
ingo@313:             Element max = createItem(
ingo@313:                 cr,
ingo@313:                 new String[] {"max", new Double(maxVal).toString()});
ingo@313: 
ingo@136:             return new Element[] { max };
ingo@136:         }
ingo@136:         else {
ingo@136:             Element step = createItem(cr, new String[] {"step", DEFAULT_STEP});
ingo@136:             return new Element[] { step };
ingo@136:         }
ingo@136: 
ingo@136:     }
ingo@136: 
ingo@136: 
ingo@136:     protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
ingo@136:         Element item  = ProtocolUtils.createArtNode(cr, "item", null, null);
ingo@136:         Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
ingo@136:         Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
ingo@136: 
ingo@136:         String[] arr = (String[]) obj;
ingo@136: 
ingo@136:         label.setTextContent(arr[0]);
ingo@136:         value.setTextContent(arr[1]);
ingo@136: 
ingo@136:         item.appendChild(label);
ingo@136:         item.appendChild(value);
ingo@136: 
ingo@136:         return item;
ingo@136:     }
ingo@136: 
ingo@136: 
sascha@660:     @Override
ingo@136:     protected String getUIProvider() {
ingo@136:         return "location_distance_panel";
ingo@136:     }
ingo@313: 
ingo@313: 
ingo@313:     protected double[] getMinMaxDistance(Artifact artifact) {
ingo@313:         FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
ingo@624:         StateData    data         = getData(flysArtifact, "river");
ingo@313: 
ingo@624:         String name = data != null ? (String) data.getValue() : "";
ingo@313: 
ingo@313:         logger.debug("Search for the min/max distances of '" + name + "'");
ingo@313: 
ingo@313:         River river = RiverFactory.getRiver(name);
ingo@313: 
ingo@313:         return river != null ? river.determineMinMaxDistance() : null;
ingo@313:     }
ingo@322: 
ingo@322: 
ingo@322:     @Override
ingo@322:     public boolean validate(Artifact artifact, CallContext context)
ingo@322:     throws IllegalArgumentException
ingo@322:     {
ingo@322:         logger.debug("LocationDistanceSelect.validate");
ingo@322: 
ingo@624:         FLYSArtifact flys = (FLYSArtifact) artifact;
ingo@322: 
ingo@627:         if (flys.isRange()) {
ingo@627:             return validateRange(flys, context);
ingo@627:         }
ingo@627:         else {
ingo@627:             return validateLocations(flys, context);
ingo@627:         }
ingo@627:     }
ingo@627: 
ingo@627: 
ingo@627:     protected boolean validateLocations(FLYSArtifact flys, CallContext context)
ingo@627:     throws    IllegalArgumentException
ingo@627:     {
ingo@627:         StateData dValues = getData(flys, LOCATIONS);
ingo@627:         String    values  = dValues != null ? (String)dValues.getValue() : null;
ingo@627: 
ingo@627:         if (values == null || values.length() == 0) {
ingo@627:             throw new IllegalArgumentException("error_empty_state");
ingo@627:         }
ingo@627: 
ingo@627:         double[] absMinMax = getMinMaxDistance(flys);
ingo@627:         double[] relMinMax = getMinMaxFromString(values);
ingo@627: 
ingo@627:         if (relMinMax[0] < absMinMax[0] || relMinMax[0] > absMinMax[1]) {
ingo@627:             throw new IllegalArgumentException("error_feed_from_out_of_range");
ingo@627:         }
ingo@627: 
ingo@627:         if (relMinMax[1] > absMinMax[1] || relMinMax[1] < absMinMax[0]) {
ingo@627:             throw new IllegalArgumentException("error_feed_to_out_of_range");
ingo@627:         }
ingo@627: 
ingo@627:         return true;
ingo@627:     }
ingo@627: 
ingo@627: 
ingo@627:     protected boolean validateRange(FLYSArtifact flys, CallContext context)
ingo@627:     throws    IllegalArgumentException
ingo@627:     {
ingo@624:         StateData dFrom = getData(flys, FROM);
ingo@624:         StateData dTo   = getData(flys, TO);
ingo@624:         StateData dStep = getData(flys, STEP);
ingo@624: 
ingo@624:         String fromStr = dFrom != null ? (String) dFrom.getValue() : null;
ingo@624:         String toStr   = dTo != null ? (String) dTo.getValue() : null;
ingo@624:         String stepStr = dStep != null ? (String) dStep.getValue() : null;
ingo@322: 
ingo@352:         if (fromStr == null || toStr == null || stepStr == null) {
ingo@352:             throw new IllegalArgumentException("error_empty_state");
ingo@352:         }
ingo@352: 
ingo@322:         try {
ingo@322:             double from = Double.parseDouble(fromStr);
ingo@322:             double to   = Double.parseDouble(toStr);
ingo@322:             double step = Double.parseDouble(stepStr);
ingo@322: 
ingo@627:             double[] minmaxDist = getMinMaxDistance(flys);
ingo@322: 
ingo@379:             return validateBounds(minmaxDist[0], minmaxDist[1], from, to, step);
ingo@322:         }
ingo@322:         catch (NumberFormatException nfe) {
ingo@627:             throw new IllegalArgumentException("error_invalid_double_value");
ingo@322:         }
ingo@322:     }
ingo@627: 
ingo@627: 
ingo@627:     /**
ingo@627:      * Extracts the min/max values from String <i>s</i>. An
ingo@627:      * IllegalArgumentException is thrown if there is a value that throws a
ingo@627:      * NumberFormatException.
ingo@627:      *
ingo@627:      * @param s String that contains whitespace separated double values.
ingo@627:      *
ingo@627:      * @return a 2dmin array [min,max].
ingo@627:      */
ingo@627:     public static double[] getMinMaxFromString(String s)
ingo@627:     throws IllegalArgumentException
ingo@627:     {
ingo@627:         String[] values = s.split(" ");
ingo@627: 
ingo@627:         double[] minmax = new double[] {
ingo@627:             Double.MAX_VALUE,
ingo@627:             -Double.MAX_VALUE };
ingo@627: 
ingo@627:         for (String v: values) {
ingo@627:             try {
ingo@627:                 double value = Double.valueOf(v);
ingo@627: 
ingo@627:                 minmax[0] = minmax[0] < value ? minmax[0] : value;
ingo@627:                 minmax[1] = minmax[1] > value ? minmax[1] : value;
ingo@627:             }
ingo@627:             catch (NumberFormatException nfe) {
ingo@627:                 throw new IllegalArgumentException(
ingo@627:                     "error_invalid_double_value");
ingo@627:             }
ingo@627:         }
ingo@627: 
ingo@627:         return minmax;
ingo@627:     }
ingo@628: 
ingo@628: 
ingo@628:     public static double[] getLocations(FLYSArtifact flys) {
ingo@628:         StateData data  = flys.getData("ld_locations");
ingo@628:         String    value = data != null ? (String) data.getValue() : null;
ingo@628: 
ingo@628:         if (value == null || value.length() == 0) {
ingo@628:             logger.warn("No location data given.");
ingo@628:             return null;
ingo@628:         }
ingo@628: 
ingo@628:         String[]         splitted = value.split(" ");
ingo@628:         TDoubleArrayList values   = new TDoubleArrayList();
ingo@628: 
ingo@628:         for (String split: splitted) {
ingo@628:             try {
ingo@628:                 values.add(Double.valueOf(split));
ingo@628:             }
ingo@628:             catch (NumberFormatException nfe) {
ingo@628:                 logger.warn(nfe, nfe);
ingo@628:             }
ingo@628:         }
ingo@628: 
ingo@628:         return values.toNativeArray();
ingo@628:     }
ingo@687: 
ingo@687: 
ingo@687:     @Override
ingo@687:     public ComputeCallback createComputeCallback(
ingo@687:         String hash, FLYSArtifact flys)
ingo@687:     {
ingo@687:         final WINFOArtifact winfo = (WINFOArtifact) flys;
ingo@687: 
ingo@689:         return new ComputeCallbackAdapter() {
ingo@689: 
ingo@689:             @Override
ingo@692:             public Object computeFeed(CallContext context, List<Facet> facets) {
ingo@687:                 return winfo.getDischargeCurveData();
ingo@687:             }
ingo@687:         };
ingo@687:     }
ingo@136: }
ingo@136: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :