Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/SedimentLoadData.java @ 8036:17542d100e75
Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 16 Jul 2014 11:05:59 +0200 |
parents | f2dc7992b8a3 |
children | aa622bddfdac |
rev | line source |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2014 by Bundesanstalt für Gewässerkunde |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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6 * documentation coming with Dive4Elements River for details. |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
Sascha L. Teichmann <teichmann@intevation.de>
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7 */ |
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8 package org.dive4elements.river.artifacts.model.minfo; |
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9 |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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10 import java.io.Serializable; |
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11 import java.util.ArrayList; |
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Wire the neighbors to the measurement stations together. This eases the lookup for same types (suspended or bed load).
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12 import java.util.Collection; |
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Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
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13 import java.util.Collections; |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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14 import java.util.Date; |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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15 import java.util.List; |
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16 import java.util.TreeMap; |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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17 |
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18 import org.dive4elements.river.utils.EpsilonComparator; |
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19 |
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20 public class SedimentLoadData implements Serializable |
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21 { |
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22 public static final double STATION_EPS = 0.0001; |
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23 |
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24 public static final int GF_COARSE = 0; |
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25 public static final int GF_FINE_MIDDLE = 1; |
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26 public static final int GF_SAND = 2; |
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27 public static final int GF_SUSP_SAND = 3; |
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28 public static final int GF_SUSP_SAND_BED = 4; |
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29 public static final int GF_SUSP_SEDIMENT = 5; |
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30 public static final int GF_MAX = 5; |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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31 |
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32 public static final int grainFractionIndex(String name) { |
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New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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33 if ("coarse".equals(name)) return GF_COARSE; |
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34 if ("fine_middle".equals(name)) return GF_FINE_MIDDLE; |
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35 if ("sand".equals(name)) return GF_SAND; |
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36 if ("susp_sand".equals(name)) return GF_SUSP_SAND; |
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37 if ("susp_sand_bed".equals(name)) return GF_SUSP_SAND_BED; |
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38 if ("suspended_sediment".equals(name)) return GF_SUSP_SEDIMENT; |
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39 return -1; |
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40 } |
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41 |
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42 public interface Visitor { |
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43 void visit(List<Station> stations); |
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44 } |
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Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
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45 |
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46 public static class Value implements Serializable { |
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47 |
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48 public interface Filter { |
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49 boolean accept(Value value); |
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50 } |
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Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
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51 |
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52 private double value; |
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53 |
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54 private Load load; |
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55 |
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56 public Value() { |
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57 } |
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58 |
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59 public Value(Load load, double value) { |
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60 this.load = load; |
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61 this.value = value; |
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62 } |
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63 |
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64 public double getValue() { |
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65 return value; |
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66 } |
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67 |
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68 public Load getLoad() { |
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69 return load; |
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70 } |
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71 } // class Value |
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72 |
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73 |
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74 public static class Load implements Serializable { |
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75 |
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76 private int id; |
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77 |
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78 private String description; |
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79 |
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80 private Date startTime; |
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81 private Date stopTime; |
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82 |
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83 public Load() { |
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84 } |
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85 |
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86 public Load(int id, String description, Date startTime, Date stopTime) { |
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87 this.id = id; |
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88 this.description = description; |
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89 this.startTime = startTime; |
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90 this.stopTime = stopTime; |
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91 } |
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92 |
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93 public int getId() { |
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94 return id; |
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95 } |
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96 |
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97 public String getDescription() { |
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98 return description; |
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99 } |
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100 |
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101 public Date getStartTime() { |
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102 return startTime; |
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103 } |
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104 |
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105 public Date getStopTime() { |
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106 return stopTime; |
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107 } |
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108 |
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109 public boolean isEpoch() { |
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110 return startTime != null && stopTime != null; |
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111 } |
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112 } // class SedimentLoad |
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113 |
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114 public static class Station implements Serializable { |
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115 |
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116 public static final int BED_LOAD = 0; |
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117 public static final int SUSPENDED = 1; |
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118 |
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119 private double station; |
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120 |
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121 private int type; |
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122 |
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123 private List<List<Value>> grainFractions; |
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124 |
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125 private Station next; |
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126 private Station prev; |
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127 |
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128 public Station() { |
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129 this(BED_LOAD, 0.0); |
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130 } |
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131 |
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132 public Station(int type, double station) { |
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133 grainFractions = new ArrayList<List<Value>>(GF_MAX+1); |
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134 for (int i = 0; i < GF_MAX+1; ++i) { |
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135 grainFractions.add(null); |
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136 } |
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137 this.type = type; |
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138 this.station = station; |
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139 } |
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140 |
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141 public double getStation() { |
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142 return station; |
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143 } |
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144 |
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145 public int getType() { |
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146 return type; |
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147 } |
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148 |
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149 public void setNext(Station next) { |
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150 this.next = next; |
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151 } |
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152 |
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153 public Station getNext() { |
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154 return next; |
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155 } |
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156 |
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157 public void setPrev(Station prev) { |
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158 this.prev = next; |
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159 } |
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160 |
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161 public Station getPrev() { |
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162 return prev; |
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163 } |
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164 |
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165 public Station getNext(boolean isKMUp) { |
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166 return isKMUp ? getNext() : getPrev(); |
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167 } |
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168 |
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169 public Station getPrev(boolean isKMUp) { |
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170 return isKMUp ? getPrev() : getNext(); |
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171 } |
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172 |
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173 public void addValue(int grainFraction, Value value) { |
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174 List<Value> values = grainFractions.get(grainFraction); |
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175 if (values == null) { |
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176 values = new ArrayList<Value>(); |
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177 grainFractions.set(grainFraction, values); |
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178 } |
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179 values.add(value); |
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180 } |
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181 |
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182 public boolean hasGrainFraction(String grainFraction) { |
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183 return hasGrainFraction(grainFractionIndex(grainFraction)); |
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184 } |
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185 |
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186 public boolean hasGrainFraction(int grainFraction) { |
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187 List<Value> values = grainFractions.get(grainFraction); |
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188 return values != null && !values.isEmpty(); |
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189 } |
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190 |
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191 public List<Value> filterGrainFraction(int grainFraction, Value.Filter filter) { |
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192 List<Value> values = grainFractions.get(grainFraction); |
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193 if (values == null || values.isEmpty()) { |
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194 return Collections.<Value>emptyList(); |
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195 } |
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196 List<Value> result = new ArrayList<Value>(values.size()); |
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197 for (Value value: values) { |
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198 if (filter.accept(value)) { |
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199 result.add(value); |
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200 } |
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201 } |
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202 return result; |
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203 } |
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204 |
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205 public double findValueByLoadId(int id) { |
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206 for (List<Value> values: grainFractions) { |
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207 double value = findValueByLoadId(values, id); |
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208 if (!Double.isNaN(value)) { |
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209 return value; |
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210 } |
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211 } |
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212 return Double.NaN; |
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213 } |
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214 |
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215 private static final double findValueByLoadId( |
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216 List<Value> values, |
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217 int id |
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218 ) { |
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219 if (values == null) { |
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220 return Double.NaN; |
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221 } |
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222 // List is ordered by station id -> binary search. |
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223 int lo = 0, hi = values.size()-1; |
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224 while (lo <= hi) { |
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225 int mid = (lo + hi)/2; |
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226 Value v = values.get(mid); |
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227 int xid = v.getLoad().getId(); |
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228 if (xid < id) hi = mid-1; |
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229 else if (xid > id) lo = mid+1; |
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230 else return v.getValue(); |
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231 } |
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232 |
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233 return Double.NaN; |
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234 } |
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235 |
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236 public static Station firstOfType(List<Station> stations, int type) { |
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237 for (Station station: stations) { |
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238 if (station.getType() == type) { |
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239 return station; |
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240 } |
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241 } |
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242 return null; |
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243 } |
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244 } // class Station |
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245 |
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246 |
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247 private List<List<Station>> stations; |
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248 |
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249 public SedimentLoadData() { |
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250 } |
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251 |
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252 public SedimentLoadData(Collection<Station> stations) { |
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253 setStations(stations); |
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254 } |
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255 |
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256 public void setStations(Collection<Station> stations) { |
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257 TreeMap<Double, List<Station>> same = |
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258 new TreeMap<Double, List<Station>>(EpsilonComparator.CMP); |
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259 for (Station station: stations) { |
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260 Double key = station.getStation(); |
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261 List<Station> sts = same.get(key); |
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262 if (sts == null) { |
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263 sts = new ArrayList<Station>(2); |
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264 same.put(key, sts); |
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265 } |
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266 sts.add(station); |
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267 } |
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268 this.stations = new ArrayList<List<Station>>(same.values()); |
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269 wireNeighbors(); |
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270 } |
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271 |
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272 private void wireNeighbors() { |
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273 for (int i = 0, N = stations.size(); i < N-1; ++i) { |
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274 for (Station current: stations.get(i)) { |
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275 int type = current.getType(); |
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276 NEXT: for (int j = i+1; j < N; ++j) { |
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277 for (Station next: stations.get(j)) { |
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278 if (next.getType() == type) { |
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279 current.setNext(next); |
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280 next.setPrev(current); |
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281 break NEXT; |
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282 } |
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283 } |
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284 } |
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285 } |
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286 } |
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287 } |
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288 |
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289 private void recursiveFindStations( |
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290 double a, double b, |
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291 int lo, int hi, |
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292 Visitor visitor |
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293 ) { |
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294 while (lo >= hi) { |
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295 int mid = (lo+hi)/2; |
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296 List<Station> sts = stations.get(mid); |
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297 double station = sts.get(0).getStation(); |
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298 if (station < a) { |
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299 hi = mid-1; |
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300 } else if (station > b) { |
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301 lo = mid+1; |
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302 } else { |
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303 recursiveFindStations(a, b, lo, mid-1, visitor); |
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304 visitor.visit(sts); |
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305 lo = mid+1; |
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306 } |
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307 } |
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308 } |
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309 |
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310 public void findStations(double a, double b, Visitor visitor) { |
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311 if (a > b) { |
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312 double t = a; a = b; b = t; |
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313 } |
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314 recursiveFindStations(a, b, 0, stations.size()-1, visitor); |
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315 } |
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316 |
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317 public List<List<Station>> findStations(double a, double b) { |
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318 final List<List<Station>> result = new ArrayList<List<Station>>(); |
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319 findStations(a, b, new Visitor() { |
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320 @Override |
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321 public void visit(List<Station> stations) { |
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322 result.add(stations); |
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323 } |
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324 }); |
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325 return result; |
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326 } |
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327 } |
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328 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |