Mercurial > dive4elements > river
annotate backend/src/main/java/org/dive4elements/river/model/River.java @ 5878:a7b56219b362
Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Mon, 29 Apr 2013 15:54:17 +0200 |
parents | 4dd33b86dc61 |
children | 1f52b2bff737 |
rev | line source |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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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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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.model; |
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10 |
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11 import org.dive4elements.river.backend.SessionHolder; |
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12 |
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13 import java.io.Serializable; |
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14 import java.math.BigDecimal; |
768 | 15 import java.math.MathContext; |
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16 import java.util.Comparator; |
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17 import java.util.List; |
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18 import java.util.Map; |
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19 import java.util.TreeMap; |
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20 |
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21 import javax.persistence.Column; |
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22 import javax.persistence.Entity; |
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23 import javax.persistence.GeneratedValue; |
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24 import javax.persistence.GenerationType; |
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25 import javax.persistence.Id; |
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26 import javax.persistence.JoinColumn; |
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27 import javax.persistence.OneToMany; |
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28 import javax.persistence.OneToOne; |
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29 import javax.persistence.OrderBy; |
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30 import javax.persistence.SequenceGenerator; |
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31 import javax.persistence.Table; |
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32 |
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33 import org.hibernate.Query; |
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34 import org.hibernate.Session; |
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35 |
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36 |
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37 @Entity |
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38 @Table(name = "rivers") |
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39 public class River |
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40 implements Serializable |
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41 { |
768 | 42 public static final MathContext PRECISION = new MathContext(6); |
43 | |
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44 public static final double EPSILON = 1e-5; |
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45 |
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46 public static final Comparator<Double> KM_CMP = new Comparator<Double>() { |
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47 @Override |
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48 public int compare(Double a, Double b) { |
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49 double diff = a - b; |
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50 if (diff < -EPSILON) return -1; |
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51 if (diff > EPSILON) return +1; |
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52 return 0; |
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53 } |
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54 }; |
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55 |
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56 private Integer id; |
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57 |
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58 private Long officialNumber; |
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59 |
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60 private String name; |
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61 |
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62 private boolean kmUp; |
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63 |
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64 private List<Gauge> gauges; |
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65 |
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66 private List<MeasurementStation> measurementstations; |
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67 |
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68 private Unit wstUnit; |
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69 |
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70 @Id |
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71 @SequenceGenerator( |
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72 name = "SEQUENCE_RIVERS_ID_SEQ", |
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73 sequenceName = "RIVERS_ID_SEQ", |
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74 allocationSize = 1) |
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75 @GeneratedValue( |
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76 strategy = GenerationType.SEQUENCE, |
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77 generator = "SEQUENCE_RIVERS_ID_SEQ") |
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78 @Column(name = "id") |
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79 public Integer getId() { |
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80 return id; |
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81 } |
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82 |
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83 public void setId(Integer id) { |
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84 this.id = id; |
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85 } |
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86 |
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87 @Column(name = "official_number") |
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88 public Long getOfficialNumber() { |
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89 return officialNumber; |
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90 } |
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91 |
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92 public void setOfficialNumber(Long officialNumber) { |
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93 this.officialNumber = officialNumber; |
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94 } |
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95 |
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96 @Column(name = "name") |
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97 public String getName() { |
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98 return name; |
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99 } |
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100 |
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101 public void setName(String name) { |
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102 this.name = name; |
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103 } |
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104 |
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105 @Column(name = "km_up") |
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106 public boolean getKmUp() { |
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107 return kmUp; |
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108 } |
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109 |
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110 public void setKmUp(boolean kmUp) { |
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111 this.kmUp = kmUp; |
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112 } |
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113 |
167
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114 public River() { |
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115 } |
169
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Bound Apache Commons DBCP with Hibernate.
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116 |
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117 public River(String name, Unit wstUnit) { |
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118 this.name = name; |
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119 this.wstUnit = wstUnit; |
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120 } |
174
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121 |
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122 @OneToMany |
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123 @JoinColumn(name="river_id") |
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124 public List<Gauge> getGauges() { |
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125 return gauges; |
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126 } |
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127 |
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128 public void setGauges(List<Gauge> gauges) { |
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129 this.gauges = gauges; |
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130 } |
188
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131 |
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132 |
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133 @OneToMany |
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134 @OrderBy("station") |
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135 @JoinColumn(name="river_id") |
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136 public List<MeasurementStation> getMeasurementStations() { |
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137 return measurementstations; |
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138 } |
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139 |
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140 public void setMeasurementStations(List<MeasurementStation> mstations) { |
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141 this.measurementstations = mstations; |
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142 } |
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143 |
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144 @OneToOne |
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145 @JoinColumn(name = "wst_unit_id" ) |
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146 public Unit getWstUnit() { |
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147 return wstUnit; |
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148 } |
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149 |
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150 public void setWstUnit(Unit wstUnit) { |
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151 this.wstUnit = wstUnit; |
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152 } |
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153 |
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154 |
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155 |
4809
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Bugs in generated RiverAxis Mapfile fixed. Now the river axes are drawn by the WMS.
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156 @Override |
188
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157 public String toString() { |
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158 return name != null ? name : ""; |
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159 } |
465
c2c3ad4fda58
Added a method to River that returns the min and max distance of the river.
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160 |
472
1e196c75563b
Added a new method to determine the selected gauge of a river based on a start and end point.
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161 |
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162 /** |
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163 * This method returns the gauges that intersect with <i>a</i> and |
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164 * <i>b</i>, |
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165 * |
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166 * @param a A start point. |
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167 * @param b An end point. |
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168 * |
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169 * @return the intersecting gauges. |
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170 */ |
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171 public List<Gauge> determineGauges(double a, double b) { |
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172 Session session = SessionHolder.HOLDER.get(); |
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173 |
756
ca13926b8871
River: Make search for gauges independent of from/to order.
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174 if (a > b) { double t = a; a = b; b = t; } |
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175 |
488
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176 Query query = session.createQuery( |
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177 "from Gauge where river=:river " + |
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178 "and not (range.a > :b or range.b < :a) order by a"); |
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179 query.setParameter("river", this); |
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180 query.setParameter("a", new BigDecimal(a, PRECISION)); |
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181 query.setParameter("b", new BigDecimal(b, PRECISION)); |
488
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182 |
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183 return query.list(); |
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184 } |
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185 |
769
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186 public Gauge maxOverlap(double a, double b) { |
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187 List<Gauge> gauges = determineGauges(a, b); |
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188 if (gauges == null) { |
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189 return null; |
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190 } |
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191 |
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192 if (a > b) { double t = a; a = b; b = t; } |
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193 |
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194 double max = -Double.MAX_VALUE; |
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195 |
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196 Gauge result = null; |
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197 |
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198 for (Gauge gauge: gauges) { |
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199 Range r = gauge.getRange(); |
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200 double c = r.getA().doubleValue(); |
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201 double d = r.getB().doubleValue(); |
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202 |
5878
a7b56219b362
Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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203 if (c > d) { double t = c; c = d; d = t; } |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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204 |
769
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205 double start = c >= a ? c : a; |
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206 double stop = d <= b ? d : b; |
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207 |
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|
208 double length = stop - start; |
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209 |
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210 if (length > max) { |
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|
211 max = length; |
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212 result = gauge; |
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213 } |
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214 } |
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215 |
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216 return result; |
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217 } |
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218 |
767
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219 public Gauge determineGaugeByName(String name) { |
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220 Session session = SessionHolder.HOLDER.get(); |
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221 Query query = session.createQuery( |
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222 "from Gauge where river=:river and name=:name"); |
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223 query.setParameter("river", this); |
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224 query.setParameter("name", name); |
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225 List<Gauge> gauges = query.list(); |
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226 return gauges.isEmpty() ? null : gauges.get(0); |
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227 } |
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228 |
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229 public Gauge determineGaugeByPosition(double p) { |
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230 Session session = SessionHolder.HOLDER.get(); |
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231 Query query = session.createQuery( |
768 | 232 "from Gauge g where river=:river " + |
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233 "and :p between " + |
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234 "least(g.range.a, g.range.b) and " + |
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235 "greatest(g.range.a, g.range.b)"); |
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236 query.setParameter("river", this); |
768 | 237 query.setParameter("p", new BigDecimal(p, PRECISION)); |
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238 List<Gauge> gauges = query.list(); |
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239 return gauges.isEmpty() ? null : gauges.get(0); |
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240 } |
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241 |
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242 public Gauge determineGaugeByStation(double a, double b) { |
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243 |
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244 if (a > b) { double t = a; a = b; b = t; } |
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245 |
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246 Session session = SessionHolder.HOLDER.get(); |
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247 |
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248 Query query = session.createQuery( |
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249 "from Gauge where river.id=:river " + |
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250 "and station between :a and :b"); |
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251 query.setParameter("river", getId()); |
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252 query.setParameter("a", new BigDecimal(a)); |
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253 query.setParameter("b", new BigDecimal(b)); |
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254 |
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255 List<Gauge> gauges = query.list(); |
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256 return gauges.isEmpty() ? null : gauges.get(0); |
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257 } |
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258 |
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259 public double[] determineMinMaxQ() { |
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260 Session session = SessionHolder.HOLDER.get(); |
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261 |
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262 Query query = session.createQuery( |
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263 "select min(wqr.q) as min, max(wqr.q) as max " + |
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264 "from Wst as w " + |
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265 "join w.columns as wc " + |
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266 "join wc.columnQRanges as wcqr " + |
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267 "join wcqr.wstQRange as wqr " + |
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268 "where w.kind = 0 and river_id = :river"); |
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269 |
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270 query.setParameter("river", getId()); |
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271 |
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272 double minmax[] = new double[] { Double.MAX_VALUE, -Double.MAX_VALUE }; |
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273 |
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274 List<Object> results = query.list(); |
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275 |
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276 if (!results.isEmpty()) { |
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277 Object[] arr = (Object[]) results.get(0); |
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278 BigDecimal minq = (BigDecimal)arr[0]; |
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279 BigDecimal maxq = (BigDecimal)arr[1]; |
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280 minmax[0] = minq.doubleValue(); |
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281 minmax[1] = maxq.doubleValue(); |
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282 } |
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283 |
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284 return minmax; |
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285 } |
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286 |
488
b316d2106598
River got a new method that returns all gauges intersected by a given start and end point.
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287 |
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|
288 /** |
472
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289 * This method returns the first gauge that is intersected by <i>a</i> and |
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|
290 * <i>b</i>, |
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291 * |
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|
292 * @param a A start point. |
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293 * @param b An end point. |
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294 * |
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295 * @return the first intersecting gauge. |
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296 */ |
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|
297 public Gauge determineGauge(double a, double b) { |
488
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298 List<Gauge> gauges = determineGauges(a, b); |
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299 |
2345
c3ea91aee989
Bugfix: #333 Improved determination of reference gauge based on start km.
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|
300 int idx = a < b ? 0 : gauges.size() - 1; |
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301 |
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302 return gauges.isEmpty() ? null : gauges.get(idx); |
472
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303 } |
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304 |
465
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Added a method to River that returns the min and max distance of the river.
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diff
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305 /** |
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Added a method to River that returns the min and max distance of the river.
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diff
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|
306 * Returns the min and max distance of this river. The first position in the |
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diff
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307 * resulting array contains the min distance, the second position the max |
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Added a method to River that returns the min and max distance of the river.
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diff
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|
308 * distance. |
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Added a method to River that returns the min and max distance of the river.
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diff
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|
309 * |
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diff
changeset
|
310 * @return the min and max distance of this river. |
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311 */ |
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diff
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|
312 public double[] determineMinMaxDistance() { |
2373
056b3a5aa181
Removed "NOT NULL" constraint from gauges.range_id because there are gauges which dont have a Gueltigkeitsbereich.
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diff
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|
313 List<Gauge> gauges = getGauges(); |
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|
314 |
056b3a5aa181
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|
315 if (gauges == null || gauges.isEmpty()) { |
465
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316 return null; |
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317 } |
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318 |
5878
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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319 double minmax[] = new double[] { Double.MAX_VALUE, -Double.MAX_VALUE }; |
465
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320 |
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321 for (Gauge g: gauges) { |
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322 Range r = g.getRange(); |
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323 |
2373
056b3a5aa181
Removed "NOT NULL" constraint from gauges.range_id because there are gauges which dont have a Gueltigkeitsbereich.
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324 if (r == null) { |
056b3a5aa181
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325 continue; |
056b3a5aa181
Removed "NOT NULL" constraint from gauges.range_id because there are gauges which dont have a Gueltigkeitsbereich.
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326 } |
056b3a5aa181
Removed "NOT NULL" constraint from gauges.range_id because there are gauges which dont have a Gueltigkeitsbereich.
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327 |
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328 double a = r.getA().doubleValue(); |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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329 if (a < minmax[0]) { |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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330 minmax[0] = a; |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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331 } |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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332 if (a > minmax[1]) { |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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333 minmax[1] = a; |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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334 } |
465
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335 |
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336 BigDecimal bigB = r.getB(); |
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337 if (bigB != null) { |
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338 double b = bigB.doubleValue(); |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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339 if (b < minmax[0]) { |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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340 minmax[0] = b; |
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341 } |
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342 if (b > minmax[1]) { |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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343 minmax[1] = b; |
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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344 } |
465
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345 } |
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346 } |
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347 |
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348 return minmax; |
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349 } |
2383
6605dcd6745f
Added a method to build a map from gauge stations to the datums of the gauges.
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350 |
2384
385170ff7b34
River: (fix) Renamed function which is not a getter.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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351 public Map<Double, Double> queryGaugeDatumsKMs() { |
2383
6605dcd6745f
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352 List<Gauge> gauges = getGauges(); |
5878
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Partial fix for flys/issue1247: When trying to find gauges take care of the fact that start and end position are in abitrary order.
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353 Map<Double, Double> result = new TreeMap<Double, Double>(KM_CMP); |
2383
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354 |
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355 for (Gauge gauge: gauges) { |
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356 BigDecimal km = gauge.getStation(); |
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357 BigDecimal datum = gauge.getDatum(); |
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358 if (km != null && datum != null) { |
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359 result.put(km.doubleValue(), datum.doubleValue()); |
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Added a method to build a map from gauge stations to the datums of the gauges.
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360 } |
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Added a method to build a map from gauge stations to the datums of the gauges.
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361 } |
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Added a method to build a map from gauge stations to the datums of the gauges.
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362 |
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363 return result; |
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364 } |
3944
5fea100c5334
Add a new method to River and Gauge classes to return a http url for additional
Bjoern Ricks <bjoern.ricks@intevation.de>
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365 |
167
15d515fe15f5
Added POJOs to be mapped to schema.
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366 } |
15d515fe15f5
Added POJOs to be mapped to schema.
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367 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |