ingo@927: package de.intevation.flys.artifacts.states;
ingo@927: 
ingo@1091: import java.io.File;
ingo@1091: import java.io.IOException;
ingo@935: import java.util.List;
ingo@935: 
ingo@1091: import javax.xml.xpath.XPathConstants;
ingo@1091: 
ingo@927: import org.apache.log4j.Logger;
ingo@927: 
ingo@1091: import de.intevation.artifacts.Artifact;
ingo@935: import de.intevation.artifacts.CallContext;
ingo@935: 
ingo@1091: import de.intevation.artifacts.common.utils.Config;
ingo@1091: import de.intevation.artifacts.common.utils.FileTools;
ingo@1091: 
ingo@935: import de.intevation.artifactdatabase.state.Facet;
ingo@935: 
ingo@935: import de.intevation.flys.artifacts.FLYSArtifact;
ingo@927: import de.intevation.flys.artifacts.model.FacetTypes;
ingo@935: import de.intevation.flys.artifacts.model.WSPLGENFacet;
ingo@1091: import de.intevation.flys.artifacts.model.WSPLGENJob;
ingo@927: 
ingo@927: 
ingo@927: public class FloodMapState
ingo@927: extends      DefaultState
ingo@927: implements   FacetTypes
ingo@927: {
ingo@927:     /** The logger that is used in this state.*/
ingo@927:     private static Logger logger = Logger.getLogger(FloodMapState.class);
ingo@927: 
ingo@935: 
ingo@1091:     public static final String XPATH_SHAPEFILE_DIR =
ingo@1091:         "/artifact-database/floodmap/shapefile-path/@value";
ingo@1091: 
ingo@1091:     public static final String WSPLGEN_PARAMETER_FILE = "wsplgen.par";
ingo@1091: 
ingo@1091: 
ingo@1053: 
ingo@1053:     @Override
ingo@935:     public Object computeAdvance(
ingo@935:         FLYSArtifact artifact,
ingo@935:         String       hash,
ingo@935:         CallContext  context,
ingo@935:         List<Facet>  facets,
ingo@935:         Object       old
ingo@935:     ) {
ingo@1091:         logger.debug("FloodMapState.computeAdvance");
ingo@1091: 
ingo@1091:         File artifactDir = getDirectory(artifact);
ingo@1091: 
ingo@1091:         if (artifactDir == null) {
ingo@1091:             logger.error("Could not create directory for WSPLGEN results!");
ingo@1091:             return null;
ingo@1091:         }
ingo@1091: 
ingo@1091:         WSPLGENJob job = prepareWSPLGENJob(artifact, artifactDir);
ingo@1091: 
ingo@1091:         if (job == null) {
ingo@1091:             removeDirectory(artifact);
ingo@1091: 
ingo@1091:             logger.error("No WSPLGEN processing has been started!");
ingo@1091: 
ingo@1091:             return null;
ingo@1091:         }
ingo@1091: 
ingo@935:         facets.add(new WSPLGENFacet(0, FLOODMAP_WSPLGEN, "WSPLGEN"));
ingo@935: 
ingo@1091:         //context.afterCall(CallContext.BACKGROUND);
ingo@1091: 
ingo@1091:         return null;
ingo@1091:     }
ingo@1091: 
ingo@1091: 
ingo@1091:     /**
ingo@1091:      * Returns the shapefile path defined in the configuration.
ingo@1091:      *
ingo@1091:      * @return the shapefile path.
ingo@1091:      */
ingo@1091:     protected String getShapefilePath() {
ingo@1091:         String shapePath = (String) Config.getXPath(
ingo@1091:             XPATH_SHAPEFILE_DIR, XPathConstants.STRING);
ingo@1091:         shapePath = Config.replaceConfigDir(shapePath);
ingo@1091: 
ingo@1091:         return shapePath;
ingo@1091:     }
ingo@1091: 
ingo@1091: 
ingo@1091:     /**
ingo@1091:      * Returns (and creates if not existing) the directory for storing WSPLEN
ingo@1091:      * data for the owner artifact.
ingo@1091:      *
ingo@1091:      * @param artifact The owner Artifact.
ingo@1091:      *
ingo@1091:      * @return the directory for WSPLEN data.
ingo@1091:      */
ingo@1091:     protected File getDirectory(FLYSArtifact artifact) {
ingo@1091:         String shapePath = getShapefilePath();
ingo@1091: 
ingo@1091:         File artifactDir = FileTools.getDirectory(
ingo@1091:             shapePath, artifact.identifier());
ingo@1091: 
ingo@1091:         return artifactDir;
ingo@1091:     }
ingo@1091: 
ingo@1091: 
ingo@1091:     /**
ingo@1091:      * Removes the directory and all its content where the required data and the
ingo@1091:      * results of WSPLGEN are stored. Should be called in endOfLife().
ingo@1091:      */
ingo@1091:     protected void removeDirectory(FLYSArtifact artifact) {
ingo@1091:         String shapePath    = getShapefilePath();
ingo@1091:         File   artifactDir = new File(shapePath, artifact.identifier());
ingo@1091: 
ingo@1091:         if (artifactDir.exists()) {
ingo@1091:             logger.info("Delete directory: " + artifactDir.getAbsolutePath());
ingo@1091:             boolean success = FileTools.deleteRecursive(artifactDir);
ingo@1091:         }
ingo@1091:         else {
ingo@1091:             logger.debug("There is no directory to remove.");
ingo@1091:         }
ingo@1091:     }
ingo@1091: 
ingo@1091: 
ingo@1091:     @Override
ingo@1091:     public void endOfLife(Artifact artifact, Object callContext) {
ingo@1091:         logger.info("FloodMapState.endOfLife: " + artifact.identifier());
ingo@1091: 
ingo@1091:         FLYSArtifact flys = (FLYSArtifact) artifact;
ingo@1091:         removeDirectory(flys);
ingo@1091:     }
ingo@1091: 
ingo@1091: 
ingo@1091: 
ingo@1091:     protected WSPLGENJob prepareWSPLGENJob(
ingo@1091:         FLYSArtifact artifact,
ingo@1091:         File         artifactDir
ingo@1091:     ) {
ingo@1091:         logger.debug("FloodMapState.prepareWSPLGENJob");
ingo@1091: 
ingo@1091:         WSPLGENJob job = new WSPLGENJob();
ingo@1091:         File  paraFile = new File(artifactDir, WSPLGEN_PARAMETER_FILE);
ingo@1091: 
ingo@1091:         try {
ingo@1091:             job.toFile(paraFile);
ingo@1091: 
ingo@1091:             return job;
ingo@1091:         }
ingo@1091:         catch (IOException ioe) {
ingo@1091:             logger.warn("Cannot write PAR file: " + ioe.getMessage());
ingo@1091:         }
ingo@1091:         catch (IllegalArgumentException iae) {
ingo@1091:             logger.warn("Cannot write PAR file: " + iae.getMessage());
ingo@1091:         }
ingo@1091: 
ingo@935:         return null;
ingo@935:     }
ingo@927: }
ingo@927: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :