Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/tkhstate/DefaultBedHeights.java @ 8942:11bf13cf0463

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Minor changes to tkh calculation. Loading default bed heights form config file.
author gernotbelger
date Fri, 09 Mar 2018 18:47:06 +0100
parents
children fb976ea01463
rev   line source
8942
11bf13cf0463 Minor changes to tkh calculation. Loading default bed heights form config file.
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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.io.File;
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13 import java.io.IOException;
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14 import java.io.InputStreamReader;
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15 import java.nio.charset.StandardCharsets;
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16 import java.nio.file.Files;
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17 import java.util.ArrayList;
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18 import java.util.Arrays;
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19 import java.util.Collection;
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20 import java.util.Collections;
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21 import java.util.List;
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22 import java.util.Properties;
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23
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24 import org.apache.commons.lang.ArrayUtils;
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25 import org.apache.commons.lang.StringUtils;
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26 import org.apache.commons.lang.math.NumberRange;
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27 import org.dive4elements.artifacts.common.utils.Config;
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28 import org.dive4elements.river.artifacts.model.Calculation;
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29 import org.dive4elements.river.model.BedHeight;
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30 import org.dive4elements.river.model.Range;
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31 import org.dive4elements.river.model.River;
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32
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33 /**
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34 * This class knows how to find the default bed heights defined for tkh calculation
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35 *
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36 * @author Gernot Belger
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37 */
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38 final class DefaultBedHeights {
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39 private static final String CONFIG_FILE = "sinfo_tkh_bedheights.properties";
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40 private final River river;
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41
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42 public DefaultBedHeights(final River river) {
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43 this.river = river;
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44 }
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45
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46 public List<BedHeight> getBedHeights(final Calculation problems) {
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47 final Collection<String> bedHeightNames = loadBedHeightDefaultsForRiver(this.river, problems);
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48
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49 final List<BedHeight> defaultBedHeights = loadBedHeightsByName(this.river, bedHeightNames, problems);
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50
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51 final List<BedHeight> validBedHeights = new ArrayList<>(defaultBedHeights.size());
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52
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53 // REMARK: check for bad ranges because db schema allow for incomplete ranges, and ignore if this is the case
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54 for (final BedHeight bedHeight : defaultBedHeights) {
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55
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56 final Range range = bedHeight.getRange();
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57
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58 if (range.getA() == null || range.getB() == null)
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59 problems.addProblem("sinfo.bedheightsfinder.badrange", bedHeight.getDescription());
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60 else
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61 validBedHeights.add(bedHeight);
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62 }
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63
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64 /* check for overlapping ranges, N2-search, but we expect only have small numbers of bed heights */
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65 final List<BedHeight> result = new ArrayList<>(defaultBedHeights.size());
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66
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67 for (int i = 0; i < defaultBedHeights.size(); i++) {
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68 final BedHeight bedHeight = validBedHeights.get(i);
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69
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70 final Range range = bedHeight.getRange();
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71 final NumberRange bedRange = new NumberRange(range.getA(), range.getB());
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72
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73 if (overlapsRange(bedRange, validBedHeights, i + 1)) {
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74 problems.addProblem("sinfo.bedheightsfinder.overlappingrange", bedHeight.getDescription());
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75 } else
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76 result.add(bedHeight);
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77 }
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78
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79 return result;
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80 }
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81
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82 private static Collection<String> loadBedHeightDefaultsForRiver(final River river, final Calculation problems) {
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83 final File configDir = Config.getConfigDirectory();
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84 final File configFile = new File(configDir, CONFIG_FILE);
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85
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86 final Properties properties = new Properties();
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87 try (final InputStreamReader reader = new InputStreamReader(Files.newInputStream(configFile.toPath()), StandardCharsets.ISO_8859_1)) {
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88 properties.load(reader);
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89
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90 final String value = properties.getProperty(river.getName());
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91 final String[] split = StringUtils.split(StringUtils.trim(value), ',');
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92 if (ArrayUtils.isEmpty(split)) {
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93 problems.addProblem("sinfo.bedheightsfinder.configfile.missingriver", CONFIG_FILE, river.getName());
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94 return Collections.emptyList();
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95 }
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96
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97 return Arrays.asList(split);
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98 }
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99 catch (final IOException e) {
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100 e.printStackTrace();
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101 problems.addProblem("sinfo.bedheightsfinder.configfile.loaderror", CONFIG_FILE, e.getMessage());
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102 return Collections.emptyList();
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103 }
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104 }
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105
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106 private static List<BedHeight> loadBedHeightsByName(final River shouldBeRiver, final Collection<String> bedHeightNames, final Calculation problems) {
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107
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108 final List<BedHeight> bedHeights = new ArrayList<>(bedHeightNames.size());
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109
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110 for (final String name : bedHeightNames) {
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111 try {
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112 final BedHeight bedHeight = BedHeight.getBedHeightByDescription(name);
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113 if (bedHeight == null)
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114 problems.addProblem("sinfo.bedheightsfinder.missingdescription", name);
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115 else {
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116 final River river = bedHeight.getRiver();
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117 if (!shouldBeRiver.getId().equals(river.getId()))
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118 problems.addProblem("sinfo.bedheightsfinder.wrongriver", name, shouldBeRiver.getName());
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119 else
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120 bedHeights.add(bedHeight);
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121 }
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122 }
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123 catch (final Exception e) {
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124 e.printStackTrace();
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125 problems.addProblem("sinfo.bedheightsfinder.missingdescription", name);
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126 }
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127 }
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128
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129 return bedHeights;
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130 }
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131
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132 private static boolean overlapsRange(final NumberRange bedRange, final List<BedHeight> result, final int startIndex) {
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133
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134 for (int i = startIndex; i < result.size(); i++) {
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135
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136 final BedHeight compareBed = result.get(i);
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137 final Range range = compareBed.getRange();
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138 final NumberRange compareRange = new NumberRange(range.getA(), range.getB());
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139
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140 if (compareRange.overlapsRange(bedRange))
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141 return true;
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142 }
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143
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144 return false;
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145 }
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146 }
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