felix@1151: package de.intevation.flys.artifacts.states;
felix@1151: 
felix@1643: import java.util.ArrayList;
felix@1151: import java.util.List;
felix@1151: 
felix@1151: import org.apache.log4j.Logger;
felix@1151: 
felix@1643: import de.intevation.artifactdatabase.state.Facet;
felix@1643: import de.intevation.artifactdatabase.data.StateData;
felix@1151: 
felix@1643: import de.intevation.artifacts.CallContext;
felix@1184: import de.intevation.artifacts.Artifact;
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@1643: import de.intevation.flys.artifacts.model.CalculationResult;
felix@1643: import de.intevation.flys.artifacts.model.DataFacet;
felix@1643: import de.intevation.flys.artifacts.model.DifferenceCurveFacet;
felix@1151: import de.intevation.flys.artifacts.model.FacetTypes;
felix@1643: import de.intevation.flys.artifacts.model.WaterlevelFacet;
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.utils.FLYSUtils;
felix@1655: import de.intevation.flys.utils.StringUtil;
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@1643:     /**
felix@1652:      * Return CalculationResult with Array of WKms that are difference of
felix@1652:      * Waterlevels. Add respective facets (DifferencesCurveFacet, DataFacet).
felix@1643:      */
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@1661:         String diffids = winfo.getDataAsString("diffids");
felix@1661:         String datas[] = diffids.split("#");
felix@1183: 
felix@1183:         // Validate the Data-Strings.
felix@1183:         for (String s: datas) {
felix@1184:             if (!WaterlevelSelectState.isValueValid(winfo.getDataAsString("diffids"))) {
felix@1183:                 // TODO: escalate.
felix@1183:             }
felix@1183:         }
felix@1183: 
felix@1626:         if (datas.length < 2) {
felix@1183:             // TODO crash with style
felix@1183:             ;
felix@1183:         }
felix@1151: 
felix@1643:         List<WKms> wkmss = new ArrayList<WKms>();
felix@1151: 
felix@1661:         for(int i = 0; i < datas.length; i+=2) {
felix@1652:             // e.g.:
felix@1652:             // 42537f1e-3522-42ef-8968-635b03d8e9c6;longitudinal_section.w;1
felix@1655:             String[] def1  = StringUtil.unbracket(datas[i+0]).split(";");
felix@1655:             String[] def2  = StringUtil.unbracket(datas[i+1]).split(";");
felix@1652:             String   uuid1 = def1[0];
felix@1652:             String   uuid2 = def2[0];
felix@1652:             int      idx1  = Integer.parseInt(def1[2]);
felix@1652:             int      idx2  = Integer.parseInt(def2[2]);
felix@1626:     
felix@1626:             WINFOArtifact flys1 = (WINFOArtifact) FLYSUtils.getArtifact(
felix@1626:                 uuid1,
felix@1626:                 context);
felix@1626:             WINFOArtifact flys2 = (WINFOArtifact) FLYSUtils.getArtifact(
felix@1626:                 uuid2,
felix@1626:                 context);
felix@1626:     
felix@1626:             if (flys1 == null) {
felix@1626:                 logger.warn("One of the artifacts (1) for diff calculation could not be loaded");
felix@1626:             }
felix@1626:             if (flys2 == null) {
felix@1626:                 logger.warn("One of the artifacts (2) for diff calculation could not be loaded");
felix@1626:             }
felix@1626:             // TODO: Issue of multiple results in calculation
felix@1626:             String facetName = "diff ()";
felix@1626:     
felix@1626:             if (flys1 != null && flys2 != null) {
felix@1643:                 WQKms[] minuend    = (WQKms[]) flys1.getWaterlevelData().
felix@1643:                                                      getData();
felix@1643:                 WQKms[] subtrahend = (WQKms[]) flys2.getWaterlevelData().
felix@1643:                                                      getData();
felix@1626: 
felix@1661:                 facetName = StringUtil.wWrap(minuend[idx1].getName()) 
felix@1661:                     + " - " + StringUtil.wWrap(subtrahend[idx2].getName());
felix@1661:                 WKms wkms = WKmsOperation.SUBTRACTION.operate(minuend[idx1],
felix@1661:                      subtrahend[idx2]);
felix@1643:                 wkms.setName(facetName);
felix@1643:                 wkmss.add(wkms);
felix@1626:                 logger.debug("WKMSSubtraction happened");
felix@1626:             }
felix@1626:     
felix@1626:             if (facets != null) {
felix@1643:                 facets.add(new DifferenceCurveFacet(i, W_DIFFERENCES, facetName,
felix@1643:                     ComputeType.ADVANCE, id, hash));
felix@1626:                 facets.add(new DataFacet(CSV, "CSV data"));
felix@1626:             }
felix@1626:             else {
felix@1626:                 logger.debug("Not adding facets in WDifferencesState.");
felix@1626:             }
felix@1151:         }
felix@1151: 
felix@1652:         // TODO Evaluate whether null is okay as reports.
felix@1643:         WKms[] diffs = wkmss.toArray(new WKms[wkmss.size()]);
felix@1652:         CalculationResult result = new CalculationResult(diffs, null);
felix@1643:         return result;
felix@1151:     }
felix@1151: }
felix@1151: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :