Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/tkhstate/BedHeightsFinder.java @ 8955:798d9dcbccdd
BedHeightValue (bed_height_values) extended by two columns for minimum and maximum bed height
author | mschaefer |
---|---|
date | Mon, 19 Mar 2018 16:32:42 +0100 |
parents | 5d5d482da3e9 |
children | 45f1ad66560e |
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/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde * Software engineering by * Björnsen Beratende Ingenieure GmbH * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.sinfo.tkhstate; import java.util.ArrayList; import java.util.Collection; import java.util.List; import java.util.Map.Entry; import java.util.NavigableMap; import java.util.TreeMap; import org.apache.commons.lang.math.DoubleRange; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.BedHeightsArtifact; import org.dive4elements.river.artifacts.math.Linear; import org.dive4elements.river.artifacts.model.Calculation; import org.dive4elements.river.artifacts.sinfo.util.BedHeightInfo; import org.dive4elements.river.model.BedHeight; import org.dive4elements.river.model.BedHeightValue; import org.dive4elements.river.utils.RiverUtils; /** * Provides bed heigts for vcarious calculations. * * @author Gernot Belger */ public final class BedHeightsFinder { private final BedHeightInfo info; private final NavigableMap<Double, BedHeightValue> values; private double meanBedHeight; private double minBedHeight; private double maxBedHeight; /** * Create bed height finders from a collection of bed heights. */ public static Collection<BedHeightsFinder> createTkhBedHeights(final DoubleRange range, final Collection<BedHeight> bedHeights) { final List<BedHeightsFinder> result = new ArrayList<>(bedHeights.size()); for (final BedHeight bedHeight : bedHeights) { final BedHeightsFinder finder = createBedHeights(bedHeight, range); result.add(finder); } return result; } public static BedHeightsFinder forId(final CallContext context, final String soundingId, final DoubleRange calcRange, final Calculation problems) { // REMARK: absolutely unbelievable.... // The way how bed-heights (and other data too) is accessed is different for nearly every calculation-type // throughout flys. // The knowledge on how to parse the datacage-ids is spread through the complete code-base... // We use here the way on how bed-heights are accessed by the BedDifferenceAccess/BedDifferenceCalculation, but // this is plain random final String[] parts = soundingId.split(";"); final BedHeightsArtifact artifact = (BedHeightsArtifact) RiverUtils.getArtifact(parts[0], context); final Integer bedheightId = artifact.getDataAsInteger("height_id"); // REMARK: this only works with type 'single'; unclear on how to distinguish from epoch data (or whatever the // other type means) // Luckily, the requirement is to only access 'single' data here. // final String bedheightType = artifact.getDataAsString("type"); // REMARK: BedDifferences uses this, but we also need the metadata of the BedHeight // REMARK: second absolutely awful thing: BedHeight is a hibernate binding class, accessing the database via // hibernate stuff // BedHeightFactory uses its own (direct) way of accessing the data, with its own implemented data classes. // return BedHeightFactory.getHeight(bedheightType, bedheightId, from, to); final BedHeightsFinder bedHeight = bedheightId == null ? null : BedHeightsFinder.forId(bedheightId, calcRange); if (bedHeight != null) return bedHeight; // FIXME: 10n problems.addProblem("Failed to access sounding with id '{0}'", soundingId); return null; } /** * Creates a {@link BedHeightsFinder} for a dataset from the database, specified by its id. * * @return <code>null</code> if no bed height with the given id exists. */ private static BedHeightsFinder forId(final int id, final DoubleRange range) { final BedHeight bedHeight = BedHeight.getBedHeightById(id); if (bedHeight == null) return null; return BedHeightsFinder.createBedHeights(bedHeight, range); } /** * Create a finder for a given bed height. * * @param range */ private static BedHeightsFinder createBedHeights(final BedHeight bedHeight, final DoubleRange range) { // FIXME: sort by station, but in what direction? // FIXME: using river.getKmUp()? final NavigableMap<Double, BedHeightValue> values = new TreeMap<>(); for (final BedHeightValue bedHeightValue : bedHeight.getValues()) { final Double station = bedHeightValue.getStation(); if (station != null && range.containsDouble(station)) { if (bedHeightValue.getHeight() != null) values.put(station, bedHeightValue); } } final BedHeightInfo info = BedHeightInfo.from(bedHeight); return new BedHeightsFinder(info, values); } private BedHeightsFinder(final BedHeightInfo info, final NavigableMap<Double, BedHeightValue> values) { this.info = info; this.values = values; } public BedHeightInfo getInfo() { return this.info; } public Collection<Double> getStations() { return this.values.keySet(); } public double getMeanBedHeight(final double km) { getBedHeights(km); return this.meanBedHeight; } public double getMinBedHeight(final double km) { getBedHeights(km); return this.minBedHeight; } public double getMaxBedHeight(final double km) { getBedHeights(km); return this.maxBedHeight; } private boolean getBedHeights(final double km) { if (this.values.containsKey(km)) { this.meanBedHeight = (this.values.get(km).getHeight() != null) ? this.values.get(km).getHeight().doubleValue() : Double.NaN; this.minBedHeight = (this.values.get(km).getMinHeight() != null) ? this.values.get(km).getMinHeight().doubleValue() : Double.NaN; this.maxBedHeight = (this.values.get(km).getMaxHeight() != null) ? this.values.get(km).getMaxHeight().doubleValue() : Double.NaN; return true; } final Entry<Double, BedHeightValue> floorEntry = this.values.floorEntry(km); final Entry<Double, BedHeightValue> ceilingEntry = this.values.ceilingEntry(km); if (floorEntry == null || ceilingEntry == null) { this.meanBedHeight = Double.NaN; this.minBedHeight = Double.NaN; this.maxBedHeight = Double.NaN; return false; } final double floorKm = floorEntry.getKey().doubleValue(); final double ceilKm = ceilingEntry.getKey().doubleValue(); // FIXME: check if we always want that... this.meanBedHeight = interpolate(km, floorKm, ceilKm, floorEntry.getValue().getHeight(), ceilingEntry.getValue().getHeight()); this.minBedHeight = interpolate(km, floorKm, ceilKm, floorEntry.getValue().getMinHeight(), ceilingEntry.getValue().getMinHeight()); this.maxBedHeight = interpolate(km, floorKm, ceilKm, floorEntry.getValue().getMaxHeight(), ceilingEntry.getValue().getMaxHeight()); return true; } private double interpolate(final double km, final double floorKm, final double ceilKm, final Double floorHeight, final Double ceilHeight) { if ((floorHeight != null) && (ceilHeight != null)) return Linear.linear(km, floorKm, ceilKm, floorHeight, ceilHeight); else return Double.NaN; } }