felix@1151: package de.intevation.flys.artifacts.states;
felix@1151: 
felix@1151: import java.util.List;
felix@1151: 
felix@1151: import org.apache.log4j.Logger;
felix@1151: 
felix@1151: import de.intevation.artifacts.CallContext;
felix@1151: 
felix@1151: import de.intevation.artifactdatabase.state.Facet;
felix@1151: 
felix@1151: import de.intevation.flys.artifacts.FLYSArtifact;
felix@1151: import de.intevation.flys.artifacts.WINFOArtifact;
felix@1151: 
felix@1151: import de.intevation.flys.artifacts.math.WKmsOperation;
felix@1151: 
felix@1151: import de.intevation.flys.artifacts.model.FacetTypes;
felix@1151: import de.intevation.flys.artifacts.model.WKms;
felix@1151: import de.intevation.flys.artifacts.model.WQKms;
felix@1151: 
felix@1151: import de.intevation.flys.artifacts.model.DataFacet;
felix@1173: import de.intevation.flys.artifacts.model.WaterlevelFacet;
felix@1151: 
felix@1151: import de.intevation.flys.utils.FLYSUtils;
felix@1151: 
ingo@1158: 
felix@1151: public class WDifferencesState
felix@1151: extends      DefaultState
felix@1151: implements   FacetTypes
felix@1151: {
felix@1151:     /** The logger that is used in this state. */
felix@1151:     private static Logger logger = Logger.getLogger(WDifferencesState.class);
felix@1151: 
felix@1173: 
felix@1151:     public WDifferencesState() {
felix@1151:     }
felix@1151: 
felix@1151: 
felix@1173:     /** Specify to display nothing (this is kind of a "final" state). */
felix@1151:     @Override
felix@1151:     protected String getUIProvider() {
felix@1173:         return "noinput";
felix@1151:     }
felix@1151: 
felix@1151: 
felix@1151:     @Override
felix@1183:     public boolean validate(Artifact artifact)
felix@1183:     throws IllegalArgumentException
felix@1183:     {
felix@1183:         FLYSArtifact flys = (FLYSArtifact) artifact;
felix@1183: 
felix@1183:         StateData data = flys.getData("diffids");
felix@1183: 
felix@1183:         if (data == null) {
felix@1183:             throw new IllegalArgumentException("diffids is empty");
felix@1183:         }
felix@1183: 
felix@1183:         // TODO: Also validate format.
felix@1183: 
felix@1183:         return true;
felix@1183:     }
felix@1183: 
felix@1183: 
felix@1183: 
felix@1183:     @Override
felix@1151:     public Object computeAdvance(
felix@1151:         FLYSArtifact artifact,
felix@1151:         String       hash,
felix@1151:         CallContext  context,
felix@1151:         List<Facet>  facets,
felix@1151:         Object       old
felix@1151:     ) {
felix@1151:         WINFOArtifact winfo = (WINFOArtifact)artifact;
felix@1173:         String id = getID();
felix@1151: 
felix@1183:         // Load the Artifacts/facets that we want to subtract and display.
felix@1183:         // Expected format is:
felix@1183:         // [42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;0]#[1231f2-....]
felix@1183:         String datas[] = winfo.getDataAsString("diffids");
felix@1183: 
felix@1183:         // Validate the Data-Strings.
felix@1183:         for (String s: datas) {
felix@1183:             if (!WaterlevelSelectState.isValid(winfo.getDataAsString("diffids"))) {
felix@1183:                 // TODO: escalate.
felix@1183:             }
felix@1183:         }
felix@1183: 
felix@1183:         if (datas.length != 2) {
felix@1183:             // TODO crash with style
felix@1183:             ;
felix@1183:         }
felix@1183:         String uuid1 = WaterlevelSelectState.strip(datas[0]).split(";")[0];
felix@1183:         String uuid2 = WaterlevelSelectState.strip(datas[1]).split(";")[0];
felix@1183: 
felix@1151:         WINFOArtifact flys1 = (WINFOArtifact) FLYSUtils.getArtifact(
felix@1183:             uuid1,
felix@1151:             context);
felix@1151:         WINFOArtifact flys2 = (WINFOArtifact) FLYSUtils.getArtifact(
felix@1183:             uuid2,
felix@1151:             context);
felix@1151: 
felix@1151:         if (flys1 == null) {
felix@1151:             logger.warn("One of the artifacts (1) for diff calculation could not be loaded");
felix@1151:         }
felix@1151:         if (flys2 == null) {
felix@1151:             logger.warn("One of the artifacts (2) for diff calculation could not be loaded");
felix@1151:         }
felix@1151:         WKms wkms = null;
felix@1153:         String facetName = "diff ()";
felix@1151: 
felix@1151:         if (flys1 != null && flys2 != null) {
felix@1153:             // TODO also check size.
felix@1153:             // TODO also need index of wqkms.
felix@1151:             WQKms[] minuend = (WQKms[]) flys1.getWaterlevelData().getData();
felix@1151:             WQKms[] subtrahend = (WQKms[]) flys2.getWaterlevelData().getData();
felix@1151:             wkms = WKmsOperation.SUBTRACTION.operate(minuend[0], subtrahend[0]);
felix@1153:             facetName = "W ("+minuend[0].getName() + ") - W (" + subtrahend[0].getName()+")";
felix@1151:             logger.warn("Did a WKMSSubtraction");
felix@1183:             // Add these datasets also as facets ("absolutes").
felix@1183:             /*
felix@1173:             Facet minuendAbsFacet = new WaterlevelFacet(0, LONGITUDINAL_W,
felix@1173:                 "Minuend: W (_todo_)", ComputeType.ADVANCE, id, hash);
felix@1173:             Facet subtrahendAbsFacet = new WaterlevelFacet(1, LONGITUDINAL_W,
felix@1173:                 "Subtrahend: W (_todo_)", ComputeType.ADVANCE, id, hash);
felix@1183:             */
felix@1173:             //facets.add(minuendAbsFacet);
felix@1173:             //facets.add(subtrahendAbsFacet);
felix@1151:         }
felix@1151: 
felix@1151:         if (facets != null) {
felix@1151:             // TODO: pass computetype and state id.
felix@1151:             //, ComputeType.ADVANCE, getID(), hash));
felix@1153:             facets.add(new DataFacet(W_DIFFERENCES, facetName));
felix@1161:             facets.add(new DataFacet(CSV, "CSV data"));
felix@1151:         }
felix@1151:         else {
felix@1151:             logger.debug("Not adding facets in WDifferencesState.");
felix@1151:         }
felix@1151: 
felix@1151:         return wkms;
felix@1151:     }
felix@1151: }
felix@1151: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :