Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/model/River.java @ 4573:b87073a05f9d
flys-client: Patch to render combobox options as clickable links.
The way of passing data arguments to the links and further to
the Artifact feeding service is somewhat hacked and should be
refactored (later...).
author | Christian Lins <christian.lins@intevation.de> |
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date | Tue, 27 Nov 2012 12:50:10 +0100 |
parents | 87c3a3ac6ddf |
children | 8062b571884d |
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1 package de.intevation.flys.model; |
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2 |
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3 import java.io.Serializable; |
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4 |
465
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5 import java.math.BigDecimal; |
768 | 6 import java.math.MathContext; |
465
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7 |
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8 import javax.persistence.Entity; |
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9 import javax.persistence.Id; |
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10 import javax.persistence.Table; |
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11 import javax.persistence.GeneratedValue; |
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12 import javax.persistence.Column; |
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13 import javax.persistence.SequenceGenerator; |
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14 import javax.persistence.OneToMany; |
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15 import javax.persistence.OneToOne; |
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16 import javax.persistence.OrderBy; |
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17 import javax.persistence.JoinColumn; |
168
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18 import javax.persistence.GenerationType; |
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19 |
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20 import java.util.List; |
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21 import java.util.Comparator; |
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22 import java.util.Map; |
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23 import java.util.TreeMap; |
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24 |
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25 import org.hibernate.Session; |
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26 import org.hibernate.Query; |
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27 |
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28 import de.intevation.flys.backend.SessionHolder; |
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29 |
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30 |
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31 @Entity |
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32 @Table(name = "rivers") |
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33 public class River |
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34 implements Serializable |
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35 { |
768 | 36 public static final MathContext PRECISION = new MathContext(6); |
37 | |
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38 public static final double EPSILON = 1e-5; |
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39 |
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40 public static final Comparator KM_CMP = new Comparator<Double>() { |
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41 @Override |
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42 public int compare(Double a, Double b) { |
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43 double diff = a - b; |
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44 if (diff < -EPSILON) return -1; |
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45 if (diff > EPSILON) return +1; |
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46 return 0; |
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47 } |
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48 }; |
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49 |
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50 private Integer id; |
167
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51 |
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52 private Long officialNumber; |
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53 |
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54 private String name; |
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55 |
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56 private boolean kmUp; |
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57 |
174
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58 private List<Gauge> gauges; |
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59 |
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60 private List<MeasurementStation> measurementstations; |
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61 |
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62 private Unit wstUnit; |
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63 |
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64 @Id |
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65 @SequenceGenerator( |
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66 name = "SEQUENCE_RIVERS_ID_SEQ", |
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67 sequenceName = "RIVERS_ID_SEQ", |
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68 allocationSize = 1) |
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69 @GeneratedValue( |
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70 strategy = GenerationType.SEQUENCE, |
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71 generator = "SEQUENCE_RIVERS_ID_SEQ") |
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72 @Column(name = "id") |
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73 public Integer getId() { |
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74 return id; |
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75 } |
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76 |
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77 public void setId(Integer id) { |
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78 this.id = id; |
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79 } |
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80 |
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81 @Column(name = "official_number") |
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82 public Long getOfficialNumber() { |
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83 return officialNumber; |
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84 } |
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85 |
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86 public void setOfficialNumber(Long officialNumber) { |
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87 this.officialNumber = officialNumber; |
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88 } |
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89 |
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90 @Column(name = "name") |
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91 public String getName() { |
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92 return name; |
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93 } |
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94 |
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95 public void setName(String name) { |
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96 this.name = name; |
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97 } |
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98 |
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99 @Column(name = "km_up") |
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100 public boolean getKmUp() { |
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101 return kmUp; |
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102 } |
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103 |
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104 public void setKmUp(boolean kmUp) { |
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105 this.kmUp = kmUp; |
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106 } |
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107 |
167
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108 public River() { |
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109 } |
169
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110 |
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111 public River(String name, Unit wstUnit) { |
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112 this.name = name; |
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113 this.wstUnit = wstUnit; |
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114 } |
174
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115 |
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116 @OneToMany |
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117 @JoinColumn(name="river_id") |
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118 public List<Gauge> getGauges() { |
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119 return gauges; |
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120 } |
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121 |
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122 public void setGauges(List<Gauge> gauges) { |
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123 this.gauges = gauges; |
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124 } |
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125 |
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126 |
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127 @OneToMany |
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128 @OrderBy("station") |
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129 @JoinColumn(name="river_id") |
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130 public List<MeasurementStation> getMeasurementStations() { |
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131 return measurementstations; |
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132 } |
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133 |
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134 public void setMeasurementStations(List<MeasurementStation> mstations) { |
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135 this.measurementstations = mstations; |
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136 } |
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137 |
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138 @OneToOne |
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139 @JoinColumn(name = "wst_unit_id" ) |
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140 public Unit getWstUnit() { |
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141 return wstUnit; |
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142 } |
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143 |
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144 public void setWstUnit(Unit wstUnit) { |
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145 this.wstUnit = wstUnit; |
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146 } |
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147 |
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148 |
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149 |
188
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150 public String toString() { |
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151 return name != null ? name : ""; |
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152 } |
465
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153 |
472
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154 |
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155 /** |
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156 * This method returns the gauges that intersect with <i>a</i> and |
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157 * <i>b</i>, |
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158 * |
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159 * @param a A start point. |
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160 * @param b An end point. |
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161 * |
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162 * @return the intersecting gauges. |
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163 */ |
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164 public List<Gauge> determineGauges(double a, double b) { |
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165 Session session = SessionHolder.HOLDER.get(); |
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166 |
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167 if (a > b) { double t = a; a = b; b = t; } |
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168 |
488
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169 Query query = session.createQuery( |
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170 "from Gauge where river=:river " + |
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171 "and not (range.a > :b or range.b < :a) order by a"); |
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172 query.setParameter("river", this); |
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173 query.setParameter("a", new BigDecimal(a, PRECISION)); |
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174 query.setParameter("b", new BigDecimal(b, PRECISION)); |
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175 |
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176 return query.list(); |
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177 } |
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178 |
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179 public Gauge maxOverlap(double a, double b) { |
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180 List<Gauge> gauges = determineGauges(a, b); |
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181 if (gauges == null) { |
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182 return null; |
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183 } |
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184 |
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185 if (a > b) { double t = a; a = b; b = t; } |
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186 |
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187 double max = -Double.MAX_VALUE; |
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188 |
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189 Gauge result = null; |
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190 |
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191 for (Gauge gauge: gauges) { |
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192 Range r = gauge.getRange(); |
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193 double c = r.getA().doubleValue(); |
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194 double d = r.getB().doubleValue(); |
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195 |
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196 double start = c >= a ? c : a; |
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197 double stop = d <= b ? d : b; |
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198 |
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199 double length = stop - start; |
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200 |
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201 if (length > max) { |
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202 max = length; |
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203 result = gauge; |
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204 } |
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205 } |
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206 |
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207 return result; |
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208 } |
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209 |
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210 public Gauge determineGaugeByName(String name) { |
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211 Session session = SessionHolder.HOLDER.get(); |
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212 Query query = session.createQuery( |
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213 "from Gauge where river=:river and name=:name"); |
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214 query.setParameter("river", this); |
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215 query.setParameter("name", name); |
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216 List<Gauge> gauges = query.list(); |
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217 return gauges.isEmpty() ? null : gauges.get(0); |
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218 } |
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219 |
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220 public Gauge determineGaugeByPosition(double p) { |
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221 Session session = SessionHolder.HOLDER.get(); |
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222 Query query = session.createQuery( |
768 | 223 "from Gauge g where river=:river " + |
224 "and :p between g.range.a and g.range.b"); | |
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225 query.setParameter("river", this); |
768 | 226 query.setParameter("p", new BigDecimal(p, PRECISION)); |
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227 List<Gauge> gauges = query.list(); |
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228 return gauges.isEmpty() ? null : gauges.get(0); |
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229 } |
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230 |
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231 public Gauge determineGaugeByStation(double a, double b) { |
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232 |
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233 if (a > b) { double t = a; a = b; b = t; } |
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234 |
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235 Session session = SessionHolder.HOLDER.get(); |
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236 |
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237 Query query = session.createQuery( |
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238 "from Gauge where river.id=:river " + |
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239 "and station between :a and :b"); |
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240 query.setParameter("river", getId()); |
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241 query.setParameter("a", new BigDecimal(a)); |
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242 query.setParameter("b", new BigDecimal(b)); |
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243 |
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244 List<Gauge> gauges = query.list(); |
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245 return gauges.isEmpty() ? null : gauges.get(0); |
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246 } |
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247 |
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248 public double[] determineMinMaxQ() { |
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249 Session session = SessionHolder.HOLDER.get(); |
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250 |
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251 Query query = session.createQuery( |
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252 "select min(wqr.q) as min, max(wqr.q) as max " + |
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253 "from Wst as w " + |
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254 "join w.columns as wc " + |
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255 "join wc.columnQRanges as wcqr " + |
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256 "join wcqr.wstQRange as wqr " + |
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257 "where w.kind = 0 and river_id = :river"); |
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258 |
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259 query.setParameter("river", getId()); |
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260 |
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261 double minmax[] = new double[] { Double.MAX_VALUE, Double.MIN_VALUE }; |
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262 |
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263 List<Object> results = query.list(); |
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264 |
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265 if (!results.isEmpty()) { |
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266 Object[] arr = (Object[]) results.get(0); |
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267 BigDecimal minq = (BigDecimal)arr[0]; |
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268 BigDecimal maxq = (BigDecimal)arr[1]; |
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269 minmax[0] = minq.doubleValue(); |
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270 minmax[1] = maxq.doubleValue(); |
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271 } |
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272 |
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273 return minmax; |
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274 } |
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275 |
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276 |
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277 /** |
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278 * This method returns the first gauge that is intersected by <i>a</i> and |
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279 * <i>b</i>, |
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280 * |
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281 * @param a A start point. |
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282 * @param b An end point. |
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283 * |
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284 * @return the first intersecting gauge. |
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285 */ |
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286 public Gauge determineGauge(double a, double b) { |
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287 List<Gauge> gauges = determineGauges(a, b); |
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288 |
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289 int idx = a < b ? 0 : gauges.size() - 1; |
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290 |
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291 return gauges.isEmpty() ? null : gauges.get(idx); |
472
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292 } |
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293 |
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294 /** |
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295 * Returns the min and max distance of this river. The first position in the |
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296 * resulting array contains the min distance, the second position the max |
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297 * distance. |
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298 * |
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299 * @return the min and max distance of this river. |
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300 */ |
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301 public double[] determineMinMaxDistance() { |
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302 List<Gauge> gauges = getGauges(); |
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303 |
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304 if (gauges == null || gauges.isEmpty()) { |
465
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305 return null; |
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306 } |
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307 |
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308 double minmax[] = new double[] { Double.MAX_VALUE, Double.MIN_VALUE }; |
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309 |
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310 for (Gauge g: gauges) { |
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311 Range r = g.getRange(); |
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312 |
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313 if (r == null) { |
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314 continue; |
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315 } |
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316 |
465
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317 double a = r.getA().doubleValue(); |
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318 minmax[0] = minmax[0] < a ? minmax[0] : a; |
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Added a method to River that returns the min and max distance of the river.
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319 |
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320 BigDecimal bigB = r.getB(); |
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321 if (bigB != null) { |
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322 double b = bigB.doubleValue(); |
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323 minmax[1] = minmax[1] > b ? minmax[1] : b; |
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324 } |
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325 } |
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326 |
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327 return minmax; |
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328 } |
2383
6605dcd6745f
Added a method to build a map from gauge stations to the datums of the gauges.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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329 |
2384
385170ff7b34
River: (fix) Renamed function which is not a getter.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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330 public Map<Double, Double> queryGaugeDatumsKMs() { |
2383
6605dcd6745f
Added a method to build a map from gauge stations to the datums of the gauges.
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331 List<Gauge> gauges = getGauges(); |
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332 Map result = new TreeMap<Double, Double>(KM_CMP); |
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333 |
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334 for (Gauge gauge: gauges) { |
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Added a method to build a map from gauge stations to the datums of the gauges.
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parents:
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335 BigDecimal km = gauge.getStation(); |
6605dcd6745f
Added a method to build a map from gauge stations to the datums of the gauges.
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parents:
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336 BigDecimal datum = gauge.getDatum(); |
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Added a method to build a map from gauge stations to the datums of the gauges.
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parents:
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337 if (km != null && datum != null) { |
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338 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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parents:
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339 } |
6605dcd6745f
Added a method to build a map from gauge stations to the datums of the gauges.
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parents:
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340 } |
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341 |
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342 return result; |
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Added a method to build a map from gauge stations to the datums of the gauges.
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parents:
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343 } |
3944
5fea100c5334
Add a new method to River and Gauge classes to return a http url for additional
Bjoern Ricks <bjoern.ricks@intevation.de>
parents:
3795
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344 |
167
15d515fe15f5
Added POJOs to be mapped to schema.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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345 } |
15d515fe15f5
Added POJOs to be mapped to schema.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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346 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |