Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/model/River.java @ 3820:8a75cf0841b1 pre2.7-2012-03-16

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merged flys-backend/pre2.7-2012-03-16
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:59 +0200
parents 385170ff7b34
children 42db09d101f3
rev   line source
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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
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5 import java.math.BigDecimal;
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6 import java.math.MathContext;
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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.JoinColumn;
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17 import javax.persistence.GenerationType;
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18
174
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19 import java.util.List;
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20 import java.util.Comparator;
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21 import java.util.Map;
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22 import java.util.TreeMap;
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23
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24 import org.hibernate.Session;
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25 import org.hibernate.Query;
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26
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27 import de.intevation.flys.backend.SessionHolder;
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28
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29
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30 @Entity
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31 @Table(name = "rivers")
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32 public class River
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33 implements Serializable
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34 {
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35 public static final MathContext PRECISION = new MathContext(6);
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36
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37 public static final double EPSILON = 1e-5;
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38
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39 public static final Comparator KM_CMP = new Comparator<Double>() {
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40 @Override
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41 public int compare(Double a, Double b) {
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42 double diff = a - b;
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43 if (diff < -EPSILON) return -1;
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44 if (diff > EPSILON) return +1;
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45 return 0;
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46 }
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47 };
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48
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49 private Integer id;
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50
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51 private String name;
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52
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53 private boolean kmUp;
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54
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55 private List<Gauge> gauges;
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56
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57 private Unit wstUnit;
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58
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59 @Id
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60 @SequenceGenerator(
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61 name = "SEQUENCE_RIVERS_ID_SEQ",
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62 sequenceName = "RIVERS_ID_SEQ",
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63 allocationSize = 1)
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64 @GeneratedValue(
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65 strategy = GenerationType.SEQUENCE,
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66 generator = "SEQUENCE_RIVERS_ID_SEQ")
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67 @Column(name = "id")
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68 public Integer getId() {
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69 return id;
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70 }
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71
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72 public void setId(Integer id) {
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73 this.id = id;
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74 }
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75
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76 @Column(name = "name")
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77 public String getName() {
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78 return name;
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79 }
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80
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81 public void setName(String name) {
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82 this.name = name;
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83 }
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84
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85 @Column(name = "km_up")
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86 public boolean getKmUp() {
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87 return kmUp;
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88 }
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89
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90 public void setKmUp(boolean kmUp) {
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91 this.kmUp = kmUp;
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92 }
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93
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94 public River() {
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95 }
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96
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97 public River(String name, Unit wstUnit) {
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98 this.name = name;
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99 this.wstUnit = wstUnit;
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100 }
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101
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102 @OneToMany
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103 @JoinColumn(name="river_id")
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104 public List<Gauge> getGauges() {
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105 return gauges;
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106 }
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107
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108 public void setGauges(List<Gauge> gauges) {
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109 this.gauges = gauges;
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110 }
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111
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112
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113 @OneToOne
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114 @JoinColumn(name = "wst_unit_id" )
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115 public Unit getWstUnit() {
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116 return wstUnit;
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117 }
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118
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119 public void setWstUnit(Unit wstUnit) {
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120 this.wstUnit = wstUnit;
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121 }
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122
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123
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124
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diff changeset
125 public String toString() {
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diff changeset
126 return name != null ? name : "";
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diff changeset
127 }
465
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diff changeset
128
472
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129
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diff changeset
130 /**
488
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diff changeset
131 * This method returns the gauges that intersect with <i>a</i> and
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diff changeset
132 * <i>b</i>,
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diff changeset
133 *
b316d2106598 River got a new method that returns all gauges intersected by a given start and end point.
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diff changeset
134 * @param a A start point.
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135 * @param b An end point.
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diff changeset
136 *
b316d2106598 River got a new method that returns all gauges intersected by a given start and end point.
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diff changeset
137 * @return the intersecting gauges.
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diff changeset
138 */
b316d2106598 River got a new method that returns all gauges intersected by a given start and end point.
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diff changeset
139 public List<Gauge> determineGauges(double a, double b) {
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diff changeset
140 Session session = SessionHolder.HOLDER.get();
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141
756
ca13926b8871 River: Make search for gauges independent of from/to order.
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diff changeset
142 if (a > b) { double t = a; a = b; b = t; }
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diff changeset
143
488
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diff changeset
144 Query query = session.createQuery(
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145 "from Gauge where river=:river " +
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diff changeset
146 "and not (range.a > :b or range.b < :a) order by a");
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diff changeset
147 query.setParameter("river", this);
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diff changeset
148 query.setParameter("a", new BigDecimal(a, PRECISION));
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diff changeset
149 query.setParameter("b", new BigDecimal(b, PRECISION));
488
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150
b316d2106598 River got a new method that returns all gauges intersected by a given start and end point.
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diff changeset
151 return query.list();
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diff changeset
152 }
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153
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154 public Gauge maxOverlap(double a, double b) {
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diff changeset
155 List<Gauge> gauges = determineGauges(a, b);
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diff changeset
156 if (gauges == null) {
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157 return null;
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158 }
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diff changeset
159
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diff changeset
160 if (a > b) { double t = a; a = b; b = t; }
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161
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diff changeset
162 double max = -Double.MAX_VALUE;
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163
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164 Gauge result = null;
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165
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diff changeset
166 for (Gauge gauge: gauges) {
321b9e480f72 Added a method to river to find the gauge with the max overlap with a given interval.
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diff changeset
167 Range r = gauge.getRange();
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diff changeset
168 double c = r.getA().doubleValue();
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diff changeset
169 double d = r.getB().doubleValue();
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170
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diff changeset
171 double start = c >= a ? c : a;
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diff changeset
172 double stop = d <= b ? d : b;
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173
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diff changeset
174 double length = stop - start;
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175
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diff changeset
176 if (length > max) {
321b9e480f72 Added a method to river to find the gauge with the max overlap with a given interval.
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177 max = length;
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178 result = gauge;
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179 }
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diff changeset
180 }
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diff changeset
181
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diff changeset
182 return result;
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183 }
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184
767
5572d051347e River: Added method to find gauge by its name.
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185 public Gauge determineGaugeByName(String name) {
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186 Session session = SessionHolder.HOLDER.get();
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187 Query query = session.createQuery(
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188 "from Gauge where river=:river and name=:name");
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189 query.setParameter("river", this);
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190 query.setParameter("name", name);
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diff changeset
191 List<Gauge> gauges = query.list();
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diff changeset
192 return gauges.isEmpty() ? null : gauges.get(0);
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193 }
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diff changeset
194
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e09f00ecb915 river model: Added method to find gauge by a position lying in its range.
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195 public Gauge determineGaugeByPosition(double p) {
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diff changeset
196 Session session = SessionHolder.HOLDER.get();
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diff changeset
197 Query query = session.createQuery(
768
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parents: 767
diff changeset
198 "from Gauge g where river=:river " +
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 767
diff changeset
199 "and :p between g.range.a and g.range.b");
764
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diff changeset
200 query.setParameter("river", this);
768
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diff changeset
201 query.setParameter("p", new BigDecimal(p, PRECISION));
764
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diff changeset
202 List<Gauge> gauges = query.list();
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diff changeset
203 return gauges.isEmpty() ? null : gauges.get(0);
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parents: 757
diff changeset
204 }
e09f00ecb915 river model: Added method to find gauge by a position lying in its range.
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parents: 757
diff changeset
205
757
c19d4c643526 River: add method to find gauge by its station position.
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parents: 756
diff changeset
206 public Gauge determineGaugeByStation(double a, double b) {
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diff changeset
207
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diff changeset
208 if (a > b) { double t = a; a = b; b = t; }
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diff changeset
209
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diff changeset
210 Session session = SessionHolder.HOLDER.get();
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diff changeset
211
c19d4c643526 River: add method to find gauge by its station position.
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diff changeset
212 Query query = session.createQuery(
c19d4c643526 River: add method to find gauge by its station position.
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diff changeset
213 "from Gauge where river.id=:river " +
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parents: 756
diff changeset
214 "and station between :a and :b");
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parents: 756
diff changeset
215 query.setParameter("river", getId());
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parents: 756
diff changeset
216 query.setParameter("a", new BigDecimal(a));
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parents: 756
diff changeset
217 query.setParameter("b", new BigDecimal(b));
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parents: 756
diff changeset
218
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diff changeset
219 List<Gauge> gauges = query.list();
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parents: 756
diff changeset
220 return gauges.isEmpty() ? null : gauges.get(0);
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parents: 756
diff changeset
221 }
c19d4c643526 River: add method to find gauge by its station position.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 756
diff changeset
222
488
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diff changeset
223
b316d2106598 River got a new method that returns all gauges intersected by a given start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 472
diff changeset
224 /**
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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parents: 465
diff changeset
225 * This method returns the first gauge that is intersected by <i>a</i> and
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
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parents: 465
diff changeset
226 * <i>b</i>,
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
227 *
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
228 * @param a A start point.
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parents: 465
diff changeset
229 * @param b An end point.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
230 *
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
231 * @return the first intersecting gauge.
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
232 */
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
233 public Gauge determineGauge(double a, double b) {
488
b316d2106598 River got a new method that returns all gauges intersected by a given start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 472
diff changeset
234 List<Gauge> gauges = determineGauges(a, b);
472
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
235
2345
c3ea91aee989 Bugfix: #333 Improved determination of reference gauge based on start km.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 769
diff changeset
236 int idx = a < b ? 0 : gauges.size() - 1;
c3ea91aee989 Bugfix: #333 Improved determination of reference gauge based on start km.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 769
diff changeset
237
c3ea91aee989 Bugfix: #333 Improved determination of reference gauge based on start km.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 769
diff changeset
238 return gauges.isEmpty() ? null : gauges.get(idx);
472
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
239 }
1e196c75563b Added a new method to determine the selected gauge of a river based on a start and end point.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 465
diff changeset
240
465
c2c3ad4fda58 Added a method to River that returns the min and max distance of the river.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 188
diff changeset
241 /**
c2c3ad4fda58 Added a method to River that returns the min and max distance of the river.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 188
diff changeset
242 * Returns the min and max distance of this river. The first position in the
c2c3ad4fda58 Added a method to River that returns the min and max distance of the river.
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243 * resulting array contains the min distance, the second position the max
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244 * distance.
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245 *
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246 * @return the min and max distance of this river.
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247 */
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248 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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249 List<Gauge> gauges = getGauges();
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250
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251 if (gauges == null || gauges.isEmpty()) {
465
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252 return null;
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253 }
c2c3ad4fda58 Added a method to River that returns the min and max distance of the river.
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254
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255 double minmax[] = new double[] { Double.MAX_VALUE, Double.MIN_VALUE };
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256
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257 for (Gauge g: gauges) {
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258 Range r = g.getRange();
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259
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056b3a5aa181 Removed "NOT NULL" constraint from gauges.range_id because there are gauges which dont have a Gueltigkeitsbereich.
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260 if (r == null) {
056b3a5aa181 Removed "NOT NULL" constraint from gauges.range_id because there are gauges which dont have a Gueltigkeitsbereich.
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parents: 2347
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261 continue;
056b3a5aa181 Removed "NOT NULL" constraint from gauges.range_id because there are gauges which dont have a Gueltigkeitsbereich.
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parents: 2347
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262 }
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263
465
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264 double a = r.getA().doubleValue();
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parents: 188
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265 minmax[0] = minmax[0] < a ? minmax[0] : a;
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parents: 188
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266
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parents: 188
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267 BigDecimal bigB = r.getB();
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parents: 188
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268 if (bigB != null) {
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parents: 188
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269 double b = bigB.doubleValue();
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parents: 188
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270 minmax[1] = minmax[1] > b ? minmax[1] : b;
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271 }
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parents: 188
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272 }
c2c3ad4fda58 Added a method to River that returns the min and max distance of the river.
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parents: 188
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273
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parents: 188
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274 return minmax;
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275 }
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parents: 2373
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276
2384
385170ff7b34 River: (fix) Renamed function which is not a getter.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2383
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277 public Map<Double, Double> queryGaugeDatumsKMs() {
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parents: 2373
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278 List<Gauge> gauges = getGauges();
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parents: 2373
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279 Map result = new TreeMap<Double, Double>(KM_CMP);
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280
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parents: 2373
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281 for (Gauge gauge: gauges) {
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parents: 2373
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282 BigDecimal km = gauge.getStation();
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parents: 2373
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283 BigDecimal datum = gauge.getDatum();
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parents: 2373
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284 if (km != null && datum != null) {
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parents: 2373
diff changeset
285 result.put(km.doubleValue(), datum.doubleValue());
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parents: 2373
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286 }
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parents: 2373
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287 }
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parents: 2373
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288
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parents: 2373
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289 return result;
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parents: 2373
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290 }
167
15d515fe15f5 Added POJOs to be mapped to schema.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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291 }
15d515fe15f5 Added POJOs to be mapped to schema.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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292 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org