Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/model/Range.java @ 8029:cdb9f6d97f6a

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Added method to importer session to fetch the measurement station for given (river, km).
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 10 Jul 2014 18:02:08 +0200
parents 4c3ccf2b0304
children
rev   line source
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4dd33b86dc61 Added header to river backend.
Sascha L. Teichmann <teichmann@intevation.de>
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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 java.io.Serializable;
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12
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13 import java.math.BigDecimal;
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14
171
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15 import javax.persistence.Entity;
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16 import javax.persistence.Id;
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17 import javax.persistence.Table;
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18 import javax.persistence.GeneratedValue;
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19 import javax.persistence.Column;
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20 import javax.persistence.SequenceGenerator;
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21 import javax.persistence.GenerationType;
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22 import javax.persistence.JoinColumn;
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23 import javax.persistence.OneToOne;
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24
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25 @Entity
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26 @Table(name = "ranges")
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27 public class Range
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28 implements Serializable
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29 {
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30 public static final double EPSILON = 1e-5;
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31 private Integer id;
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32 private BigDecimal a;
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33 private BigDecimal b;
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34
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35 private River river;
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36
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37 public Range() {
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38 }
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39
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40 public Range(double a, double b, River river) {
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41 this(new BigDecimal(a), new BigDecimal(b), river);
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42 }
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43
201
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44 public Range(BigDecimal a, BigDecimal b, River river) {
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45 this.a = a;
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46 this.b = b;
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47 this.river = river;
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48 }
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49
171
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50 @Id
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51 @SequenceGenerator(
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52 name = "SEQUENCE_RANGES_ID_SEQ",
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53 sequenceName = "RANGES_ID_SEQ",
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54 allocationSize = 1)
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55 @GeneratedValue(
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56 strategy = GenerationType.SEQUENCE,
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57 generator = "SEQUENCE_RANGES_ID_SEQ")
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58 @Column(name = "id")
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59 public Integer getId() {
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60 return id;
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61 }
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62
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63 public void setId(Integer id) {
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64 this.id = id;
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65 }
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66
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67 @Column(name = "a") // FIXME: type mapping needed?
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68 public BigDecimal getA() {
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69 return a;
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70 }
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71
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72 public void setA(BigDecimal a) {
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73 this.a = a;
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74 }
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75
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76 @Column(name = "b") // FIXME: type mapping needed?
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77 public BigDecimal getB() {
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78 return b;
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79 }
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80
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81 public void setB(BigDecimal b) {
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82 this.b = b;
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83 }
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84
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85 public boolean containsTolerant(double x) {
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86 return containsTolerant(x, EPSILON);
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87 }
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88
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89 public boolean containsTolerant(double x, double tolerance) {
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90 BigDecimal b = this.b != null ? this.b : a;
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91 double av = a.doubleValue();
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92 double bv = b.doubleValue();
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93 if (av > bv) {
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94 double t = av;
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95 av = bv;
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96 bv = t;
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97 }
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98 return x+tolerance >= av && x-tolerance <= bv;
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99 }
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100
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101 public boolean contains(double x) {
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102 BigDecimal b = this.b != null ? this.b : a;
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103 double av = a.doubleValue();
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104 double bv = b.doubleValue();
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105 if (av > bv) {
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106 double t = av;
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107 av = bv;
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108 bv = t;
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109 }
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110 return x >= av && x <= bv;
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111 }
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112
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113 @OneToOne
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114 @JoinColumn(name = "river_id")
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115 public River getRiver() {
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116 return river;
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117 }
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118
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119 public void setRiver(River river) {
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120 this.river = river;
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121 }
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122
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123 public int code() {
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124 int code = 0;
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125 if (a != null) code = 1;
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126 if (b != null) code |= 2;
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127 return code;
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128 }
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129
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130 public boolean intersects(BigDecimal c) {
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131 return !(a.compareTo(c) > 0 || b.compareTo(c) < 0);
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132 }
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133
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134 public boolean intersects(Range other) {
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135
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136 int code = code();
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137 int ocode = other.code();
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138
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139 if (code == 0 || ocode == 0) {
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140 return false;
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141 }
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142
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143 switch (code) {
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144 case 1: // has a
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145 switch (ocode) {
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146 case 1: // has a
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147 return a.compareTo(other.a) == 0;
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148 case 2: // has b
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149 return a.compareTo(other.b) == 0;
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150 case 3: // has range
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151 return other.intersects(a);
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152 }
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153 break;
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154 case 2: // has b
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155 switch (ocode) {
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156 case 1: // has a
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157 return b.compareTo(other.a) == 0;
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158 case 2: // has b
205
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159 return b.compareTo(other.b) == 0;
204
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160 case 3: // has range
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161 return other.intersects(b);
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162 }
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163 break;
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164 case 3: // has range
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165 switch (ocode) {
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166 case 1: // has a
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167 return intersects(other.a);
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168 case 2: // has b
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169 return intersects(other.b);
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170 case 3: // has range
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171 return !(other.b.compareTo(a) < 0
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172 ||other.a.compareTo(b) > 0);
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173 }
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174 break;
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175
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176 }
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177
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178 return false;
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179 }
167
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180 }
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181 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org