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annotate artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/tkhstate/BedHeightsFinder.java @ 8946:5d5d482da3e9

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Implementing SINFO - FlowDepthMinMax calculation
author gernotbelger
date Tue, 13 Mar 2018 18:49:33 +0100
parents 11bf13cf0463
children 798d9dcbccdd
rev   line source
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10 package org.dive4elements.river.artifacts.sinfo.tkhstate;
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11
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12 import java.util.ArrayList;
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13 import java.util.Collection;
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14 import java.util.List;
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15 import java.util.Map.Entry;
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16 import java.util.NavigableMap;
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17 import java.util.TreeMap;
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18
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19 import org.apache.commons.lang.math.DoubleRange;
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20 import org.dive4elements.artifacts.CallContext;
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21 import org.dive4elements.river.artifacts.BedHeightsArtifact;
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22 import org.dive4elements.river.artifacts.math.Linear;
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23 import org.dive4elements.river.artifacts.model.Calculation;
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24 import org.dive4elements.river.artifacts.sinfo.util.BedHeightInfo;
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25 import org.dive4elements.river.model.BedHeight;
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26 import org.dive4elements.river.model.BedHeightValue;
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27 import org.dive4elements.river.utils.RiverUtils;
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28
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29 /**
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30 * Provides bed heigts for vcarious calculations.
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31 *
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32 * @author Gernot Belger
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33 */
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34 public final class BedHeightsFinder {
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35
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36 private final BedHeightInfo info;
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37
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38 private final NavigableMap<Double, BedHeightValue> values;
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39
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40 /**
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41 * Create bed height finders from a collection of bed heights.
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42 */
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43 public static Collection<BedHeightsFinder> createTkhBedHeights(final DoubleRange range, final Collection<BedHeight> bedHeights) {
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44 final List<BedHeightsFinder> result = new ArrayList<>(bedHeights.size());
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45
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46 for (final BedHeight bedHeight : bedHeights) {
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47 final BedHeightsFinder finder = createBedHeights(bedHeight, range);
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48 result.add(finder);
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49 }
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50
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51 return result;
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52 }
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53
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54 public static BedHeightsFinder forId(final CallContext context, final String soundingId, final DoubleRange calcRange, final Calculation problems) {
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55
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56 // REMARK: absolutely unbelievable....
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57 // The way how bed-heights (and other data too) is accessed is different for nearly every calculation-type
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58 // throughout flys.
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59 // The knowledge on how to parse the datacage-ids is spread through the complete code-base...
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60
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61 // We use here the way on how bed-heights are accessed by the BedDifferenceAccess/BedDifferenceCalculation, but
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62 // this is plain random
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63 final String[] parts = soundingId.split(";");
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64
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65 final BedHeightsArtifact artifact = (BedHeightsArtifact) RiverUtils.getArtifact(parts[0], context);
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66
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67 final Integer bedheightId = artifact.getDataAsInteger("height_id");
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68
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69 // REMARK: this only works with type 'single'; unclear on how to distinguish from epoch data (or whatever the
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70 // other type means)
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71 // Luckily, the requirement is to only access 'single' data here.
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72 // final String bedheightType = artifact.getDataAsString("type");
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73
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74 // REMARK: BedDifferences uses this, but we also need the metadata of the BedHeight
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75 // REMARK: second absolutely awful thing: BedHeight is a hibernate binding class, accessing the database via
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76 // hibernate stuff
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77 // BedHeightFactory uses its own (direct) way of accessing the data, with its own implemented data classes.
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78 // return BedHeightFactory.getHeight(bedheightType, bedheightId, from, to);
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79
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80 final BedHeightsFinder bedHeight = bedheightId == null ? null : BedHeightsFinder.forId(bedheightId, calcRange);
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81 if (bedHeight != null)
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82 return bedHeight;
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83
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84 // FIXME: 10n
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85 problems.addProblem("Failed to access sounding with id '{0}'", soundingId);
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86 return null;
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87 }
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88
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89 /**
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90 * Creates a {@link BedHeightsFinder} for a dataset from the database, specified by its id.
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91 *
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92 * @return <code>null</code> if no bed height with the given id exists.
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93 */
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94 private static BedHeightsFinder forId(final int id, final DoubleRange range) {
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95
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96 final BedHeight bedHeight = BedHeight.getBedHeightById(id);
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97 if (bedHeight == null)
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98 return null;
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99
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100 return BedHeightsFinder.createBedHeights(bedHeight, range);
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101 }
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102
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103 /**
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104 * Create a finder for a given bed height.
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105 *
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106 * @param range
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107 */
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108 private static BedHeightsFinder createBedHeights(final BedHeight bedHeight, final DoubleRange range) {
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109
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110 // FIXME: sort by station, but in what direction?
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111 // FIXME: using river.getKmUp()?
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112 final NavigableMap<Double, BedHeightValue> values = new TreeMap<>();
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113
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114 for (final BedHeightValue bedHeightValue : bedHeight.getValues()) {
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115 final Double station = bedHeightValue.getStation();
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116 if (station != null && range.containsDouble(station)) {
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117
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118 if (bedHeightValue.getHeight() != null)
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119 values.put(station, bedHeightValue);
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120 }
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121 }
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122
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123 final BedHeightInfo info = BedHeightInfo.from(bedHeight);
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124
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125 return new BedHeightsFinder(info, values);
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126 }
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127
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128 private BedHeightsFinder(final BedHeightInfo info, final NavigableMap<Double, BedHeightValue> values) {
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129 this.info = info;
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130 this.values = values;
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131 }
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132
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133 public BedHeightInfo getInfo() {
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134 return this.info;
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135 }
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136
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137 public Collection<Double> getStations() {
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138 return this.values.keySet();
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139 }
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140
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141 public double getMeanBedHeight(final double km) {
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142
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143 if (this.values.containsKey(km))
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144 return this.values.get(km).getHeight();
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145
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146 final Entry<Double, BedHeightValue> floorEntry = this.values.floorEntry(km);
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147 final Entry<Double, BedHeightValue> ceilingEntry = this.values.ceilingEntry(km);
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148
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149 if (floorEntry == null || ceilingEntry == null)
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150 return Double.NaN;
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151
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152 final double floorKm = floorEntry.getKey();
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153 final double floorHeight = floorEntry.getValue().getHeight();
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154 final double ceilKm = ceilingEntry.getKey();
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155 final double ceilHeight = ceilingEntry.getValue().getHeight();
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156
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157 // FIXME: check if we always want that...
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158
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159 return Linear.linear(km, floorKm, ceilKm, floorHeight, ceilHeight);
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160 }
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161 }
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