ingo@927: package de.intevation.flys.artifacts.states;
ingo@927: 
ingo@1622: import java.io.File;
ingo@1622: 
ingo@1622: import org.w3c.dom.Element;
ingo@1622: 
ingo@1622: import org.apache.log4j.Logger;
ingo@1622: 
ingo@2013: import de.intevation.artifacts.Artifact;
ingo@1622: import de.intevation.artifacts.CallContext;
ingo@1622: 
ingo@1622: import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
ingo@1622: 
ingo@2013: import de.intevation.flys.model.DGM;
ingo@2013: import de.intevation.flys.model.River;
ingo@2013: 
ingo@1743: import de.intevation.flys.artifacts.FLYSArtifact;
ingo@2013: import de.intevation.flys.utils.FLYSUtils;
ingo@1622: 
ingo@1622: 
ingo@927: /**
ingo@927:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@927:  */
ingo@927: public class DGMSelect extends DefaultState {
ingo@927: 
ingo@1622:     private static final Logger logger = Logger.getLogger(DGMSelect.class);
ingo@1622: 
ingo@2013:     public static final String ERR_EMPTY         = "error_no_dgm_selected";
ingo@2013:     public static final String ERR_INVALID_DGM   = "error_invalid_dgm_selected";
ingo@2013:     public static final String ERR_BAD_DGM_RANGE = "error_bad_dgm_range";
ingo@2013:     public static final String ERR_BAD_DGM_RIVER = "error_bad_dgm_river";
ingo@2013: 
ingo@1622: 
ingo@927:     @Override
ingo@927:     protected String getUIProvider() {
ingo@1172:         return "dgm_datacage_panel";
ingo@927:     }
ingo@1622: 
ingo@1622: 
ingo@1622:     @Override
ingo@1622:     protected Element createStaticData(
ingo@1743:         FLYSArtifact   flys,
ingo@1622:         ElementCreator creator,
ingo@1622:         CallContext    cc,
ingo@1622:         String         name,
ingo@1622:         String         value,
ingo@1622:         String         type
ingo@1622:     ) {
ingo@1622:         Element dataElement = creator.create("data");
ingo@1622:         creator.addAttr(dataElement, "name", name, true);
ingo@1622:         creator.addAttr(dataElement, "type", type, true);
ingo@1622: 
ingo@1622:         Element itemElement = creator.create("item");
ingo@1622:         creator.addAttr(itemElement, "value", value, true);
ingo@1622: 
ingo@1622:         creator.addAttr(itemElement, "label", getLabel(cc, value), true);
ingo@1622:         dataElement.appendChild(itemElement);
ingo@1622: 
ingo@1622:         return dataElement;
ingo@1622:     }
ingo@1622: 
ingo@1622: 
ingo@1622:     public static String getLabel(CallContext cc, String value) {
ingo@1622:         logger.debug("Create label for value: " + value);
ingo@1622: 
ingo@1622:         try {
ingo@1622:             DGM dgm = DGM.getDGM(Integer.parseInt(value));
ingo@1622: 
ingo@1622:             File file = new File(dgm.getPath());
ingo@1622:             return file.getName();
ingo@1622:         }
ingo@1622:         catch (NumberFormatException nfe) {
ingo@1622:             logger.warn("Cannot parse int value: '" + value + "'");
ingo@1622:         }
ingo@1622: 
ingo@1622:         return "";
ingo@1622:     }
ingo@2013: 
ingo@2013: 
ingo@2013:     @Override
ingo@2013:     public boolean validate(Artifact artifact)
ingo@2013:     throws IllegalArgumentException
ingo@2013:     {
ingo@2013:         FLYSArtifact flys = (FLYSArtifact) artifact;
ingo@2013: 
ingo@2013:         DGM dgm = getDGM(flys);
ingo@2013: 
ingo@2013:         if (dgm == null) {
ingo@2013:             throw new IllegalArgumentException(ERR_INVALID_DGM);
ingo@2013:         }
ingo@2013: 
ingo@2013:         double l = dgm.getLower().doubleValue();
ingo@2013:         double u = dgm.getUpper().doubleValue();
ingo@2013: 
ingo@2013:         double[] range = FLYSUtils.getKmFromTo(flys);
ingo@2013: 
ingo@2013:         if (range[0] < l || range[0] > u || range[1] < l || range[1] > u) {
ingo@2013:             throw new IllegalArgumentException(ERR_BAD_DGM_RANGE);
ingo@2013:         }
ingo@2013: 
ingo@2013:         River selectedRiver = FLYSUtils.getRiver(flys);
ingo@2013:         River dgmRiver      = dgm.getRiver();
ingo@2013: 
ingo@2013:         if (selectedRiver != dgmRiver) {
ingo@2013:             throw new IllegalArgumentException(ERR_BAD_DGM_RIVER);
ingo@2013:         }
ingo@2013: 
ingo@2013:         return true;
ingo@2013:     }
ingo@2013: 
ingo@2013: 
ingo@2013:     /**
ingo@2013:      * Returns the DGM specified in the parameters of <i>flys</i>.
ingo@2013:      *
ingo@2013:      * @param flys The FLYSArtifact that knows the ID of a DGM.
ingo@2013:      *
ingo@2013:      * @throws IllegalArgumentException If the FLYSArtifact doesn't know the ID
ingo@2013:      * of a DGM.
ingo@2013:      *
ingo@2013:      * @return the DGM specified by FLYSArtifact's parameters.
ingo@2013:      */
ingo@2013:     public static DGM getDGM(FLYSArtifact flys)
ingo@2013:     throws IllegalArgumentException
ingo@2013:     {
ingo@2013:         try {
ingo@2013:             Integer dgmId = flys.getDataAsInteger("dgm");
ingo@2013:             if (dgmId == null) {
ingo@2013:                 throw new IllegalArgumentException(ERR_EMPTY);
ingo@2013:             }
ingo@2013: 
ingo@2013:             logger.debug("Found selected dgm: '" + dgmId + "'");
ingo@2013: 
ingo@2013:             return DGM.getDGM(dgmId);
ingo@2013:         }
ingo@2013:         catch (NumberFormatException nfe) {
ingo@2013:             throw new IllegalArgumentException(ERR_INVALID_DGM);
ingo@2013:         }
ingo@2013:     }
ingo@927: }
ingo@927: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :