sascha@3408: package de.intevation.flys.artifacts.access;
sascha@3408: 
sascha@3408: import de.intevation.artifactdatabase.data.StateData;
sascha@3411: 
sascha@3408: import de.intevation.flys.artifacts.FLYSArtifact;
sascha@3411: 
sascha@3408: import de.intevation.flys.artifacts.model.DateRange;
sascha@3408: 
sascha@3408: import java.util.Arrays;
sascha@3408: import java.util.Date;
sascha@3408: 
sascha@3408: import org.apache.log4j.Logger;
sascha@3408: 
sascha@3408: public class FixAnalysisAccess
sascha@3418: extends      FixAccess
sascha@3408: {
sascha@3408:     private static Logger log = Logger.getLogger(FixAnalysisAccess.class);
sascha@3408: 
sascha@3408:     protected DateRange    referencePeriod;
sascha@3408:     protected DateRange [] analysisPeriods;
sascha@3408: 
sascha@3408:     protected double [] qs;
sascha@3408: 
sascha@3408:     public FixAnalysisAccess() {
sascha@3408:     }
sascha@3408: 
sascha@3408:     public FixAnalysisAccess(FLYSArtifact artifact) {
sascha@3408:         super(artifact);
sascha@3408:     }
sascha@3408: 
sascha@3408:     public DateRange getReferencePeriod() {
sascha@3408:         if (referencePeriod == null) {
sascha@3408:             StateData refStart = artifact.getData("ref_start");
sascha@3408:             StateData refEnd   = artifact.getData("ref_end");
sascha@3408: 
sascha@3408:             if (refStart == null || refEnd == null) {
sascha@3408:                 log.warn("missing 'ref_start' or 'ref_start' value");
sascha@3408:                 return null;
sascha@3408:             }
sascha@3408: 
sascha@3408:             try {
sascha@3408:                 long rs = Long.parseLong((String)refStart.getValue());
sascha@3408:                 long re = Long.parseLong((String)refEnd  .getValue());
sascha@3408: 
sascha@3408:                 if (rs > re) { long t = rs; rs = re; re = t; }
sascha@3408: 
sascha@3408:                 Date from = new Date(rs);
sascha@3408:                 Date to   = new Date(re);
sascha@3408:                 referencePeriod = new DateRange(from, to);
sascha@3408:             }
sascha@3408:             catch (NumberFormatException nfe) {
sascha@3408:                 log.warn("ref_start or ref_end is not an integer.");
sascha@3408:             }
sascha@3408:         }
sascha@3408: 
sascha@3408:         return referencePeriod;
sascha@3408:     }
sascha@3408: 
sascha@3408:     public DateRange [] getAnalysisPeriods() {
sascha@3408:         if (analysisPeriods == null) {
sascha@3408:             analysisPeriods = getDateRange("ana_data");
sascha@3408:         }
sascha@3408: 
sascha@3408:         return analysisPeriods;
sascha@3408:     }
sascha@3408: 
sascha@3408:     /**
sascha@3408:      * @return DateRange object ranging from eldest to youngest date
sascha@3408:      * of analysis and reference periods.
sascha@3408:      */
sascha@3408:     public DateRange getDateRange() {
sascha@3408:         DateRange refP = getReferencePeriod();
sascha@3408: 
sascha@3408:         Date from = refP.getFrom();
sascha@3408:         Date to   = refP.getTo();
sascha@3408: 
sascha@3408:         DateRange[] rs = getAnalysisPeriods();
sascha@3418:         for (DateRange r: rs) {
sascha@3418:             if (r.getFrom().before(from)) {
sascha@3408:                 from = r.getFrom();
sascha@3408:             }
sascha@3418:             if (r.getTo().after(to)) {
sascha@3408:                 to = r.getTo();
sascha@3408:             }
sascha@3408:         }
sascha@3408: 
sascha@3408:         return new DateRange(from, to);
sascha@3408:     }
sascha@3408: 
sascha@3408:     public double [] getQs() {
sascha@3408:         if (qs == null) {
sascha@3408:             qs = getDoubleArray("qs");
sascha@3408:         }
sascha@3408: 
sascha@3408:         if (log.isDebugEnabled() && qs != null) {
sascha@3408:             log.debug("qs: " + Arrays.toString(qs));
sascha@3408:         }
sascha@3408:         return qs;
sascha@3408:     }
sascha@3408: }
sascha@3408: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :