Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/model/FastAnnotations.java @ 5715:37e4073dc0bb
Add font settings for info part
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Mon, 15 Apr 2013 11:34:47 +0200 |
parents | 20d249e1589f |
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1 package de.intevation.flys.model; |
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2 |
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3 import java.util.Comparator; |
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4 import java.util.ArrayList; |
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5 import java.util.List; |
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6 import java.util.Arrays; |
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7 import java.util.HashMap; |
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8 import java.util.Iterator; |
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9 import java.util.NoSuchElementException; |
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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 org.hibernate.Session; |
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14 import org.hibernate.SQLQuery; |
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15 |
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16 import org.hibernate.type.StandardBasicTypes; |
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17 |
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18 import de.intevation.flys.backend.SessionHolder; |
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19 |
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20 public class FastAnnotations |
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21 implements Serializable |
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22 { |
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23 public static final String SQL_BY_RIVER_NAME = |
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24 "SELECT r.a AS a, r.b AS b, p.value AS position, " + |
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25 "at.value AS attribute, ant.name AS name, " + |
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26 "e.top AS top, e.bottom AS bottom " + |
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27 "FROM annotations an " + |
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28 "JOIN ranges r " + |
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29 "ON an.range_id = r.id " + |
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30 "JOIN attributes at " + |
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31 "ON an.attribute_id = at.id " + |
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32 "JOIN positions p " + |
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33 "ON an.position_id = p.id " + |
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34 "JOIN rivers riv " + |
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35 "ON r.river_id = riv.id " + |
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36 "LEFT JOIN annotation_types ant " + |
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37 "ON an.type_id = ant.id " + |
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38 "LEFT JOIN edges e " + |
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39 "ON an.edge_id = e.id " + |
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40 "WHERE riv.name = :river_name " + |
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41 "ORDER BY r.a"; |
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42 |
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43 public static final String SQL_BY_RIVER_ID = |
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44 "SELECT r.a AS a, r.b AS b, p.value AS position, " + |
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45 "at.value AS attribute, ant.name AS name, " + |
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46 "e.top AS top, e.bottom AS bottom " + |
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47 "FROM annotations an " + |
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48 "JOIN ranges r " + |
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49 "ON an.range_id = r.id " + |
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50 "JOIN attributes at " + |
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51 "ON an.attribute_id = at.id " + |
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52 "JOIN positions p " + |
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53 "ON an.position_id = p.id " + |
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54 "LEFT JOIN annotation_types ant " + |
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55 "ON an.type_id = ant.id " + |
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56 "LEFT JOIN edges e " + |
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57 "ON an.edge_id = e.id " + |
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58 "WHERE r.id = :river_id " + |
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59 "ORDER BY r.a"; |
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60 |
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61 public static final double EPSILON = 1e-5; |
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62 |
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63 public static final Comparator<Annotation> KM_CMP = |
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64 new Comparator<Annotation>() { |
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65 @Override |
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66 public int compare(Annotation a, Annotation b) { |
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67 double diff = a.a - b.a; |
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68 if (diff < -EPSILON) return -1; |
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69 if (diff > +EPSILON) return +1; |
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70 return 0; |
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71 } |
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72 }; |
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73 |
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74 public static final class Annotation |
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75 implements Serializable |
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76 { |
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77 private double a; |
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78 private double b; |
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79 private String position; |
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80 private String attribute; |
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81 private String name; |
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82 private double top; |
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83 private double bottom; |
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84 |
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85 public Annotation() { |
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86 } |
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87 |
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88 public Annotation(double a) { |
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89 this.a = a; |
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90 } |
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91 |
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92 public Annotation( |
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93 double a, |
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94 double b, |
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95 String position, |
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96 String attribute, |
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97 String name, |
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98 double top, |
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99 double bottom |
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100 ) { |
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101 this.a = a; |
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102 this.b = b; |
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103 this.position = position; |
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104 this.attribute = attribute; |
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105 this.name = name; |
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106 this.top = top; |
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107 this.bottom = bottom; |
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108 } |
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109 |
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110 public double getA() { |
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111 return a; |
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112 } |
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113 |
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114 public double getB() { |
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115 return b; |
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116 } |
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117 |
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118 public String getPosition() { |
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119 return position; |
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120 } |
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121 |
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122 public String getAttribute() { |
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123 return attribute; |
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124 } |
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125 |
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126 public String getName() { |
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127 return name; |
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128 } |
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129 |
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130 public double getTop() { |
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131 return top; |
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132 } |
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133 |
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134 public double getBottom() { |
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135 return bottom; |
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136 } |
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137 |
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138 @Override |
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139 public String toString() { |
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140 return "[a=" + a + ";b=" + b + |
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141 ";pos=" + position + ";attr=" + attribute + |
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142 ";name=" + name + ";top=" + top + |
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143 ";bot=" + bottom + "]"; |
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144 } |
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145 } // class Annotation |
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146 |
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147 public interface Filter { |
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148 |
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149 boolean accept(Annotation annotation); |
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150 |
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151 } // interface Filter |
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152 |
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153 public static class NameFilter implements Filter { |
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154 |
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155 private String name; |
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156 |
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157 public NameFilter(String name) { |
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158 this.name = name; |
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159 } |
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160 |
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161 @Override |
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162 public boolean accept(Annotation annotation) { |
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163 return annotation.getName().contains(name); |
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164 } |
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165 } // class NameFilter |
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166 |
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167 public static final Filter ALL = new Filter() { |
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168 @Override |
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169 public boolean accept(Annotation annotation) { |
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170 return true; |
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171 } |
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172 }; |
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173 |
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174 public static final Filter IS_POINT = new Filter() { |
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175 @Override |
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176 public boolean accept(Annotation annotation) { |
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177 return Double.isNaN(annotation.getB()); |
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178 } |
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179 }; |
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180 |
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181 public static final Filter IS_RANGE = new Filter() { |
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182 @Override |
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183 public boolean accept(Annotation annotation) { |
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184 return !Double.isNaN(annotation.getB()); |
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185 } |
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186 }; |
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187 |
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188 private Annotation [] annotations; |
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189 |
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190 public FastAnnotations() { |
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191 } |
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192 |
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193 public FastAnnotations(Annotation [] annotations) { |
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194 this.annotations = annotations; |
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195 } |
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196 |
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197 public FastAnnotations(String riverName) { |
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198 this(loadByRiverName(riverName)); |
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199 } |
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200 |
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201 public FastAnnotations(int riverId) { |
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202 this(loadByRiverId(riverId)); |
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203 } |
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204 |
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205 public FastAnnotations(Iterator<Annotation> iter) { |
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206 this(toArray(iter)); |
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207 } |
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208 |
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209 public int size() { |
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210 return annotations.length; |
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211 } |
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212 |
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213 public Iterator<Annotation> filter(final Filter filter) { |
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214 return new Iterator<Annotation>() { |
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215 |
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216 private int idx; |
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217 private Annotation current = findNext(); |
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218 |
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219 @Override |
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220 public boolean hasNext() { |
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221 return current != null; |
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222 } |
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223 |
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224 @Override |
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225 public Annotation next() { |
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226 if (current == null) { |
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227 throw new NoSuchElementException(); |
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228 } |
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229 Annotation result = current; |
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230 current = findNext(); |
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231 return result; |
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232 } |
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233 |
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234 private Annotation findNext() { |
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235 |
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236 while (idx < annotations.length) { |
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237 Annotation annotation = annotations[idx++]; |
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238 if (filter.accept(annotation)) { |
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239 return annotation; |
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240 } |
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241 } |
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242 |
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243 return null; |
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244 } |
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245 |
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246 @Override |
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247 public void remove() { |
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248 throw new UnsupportedOperationException(); |
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249 } |
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250 }; |
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251 } |
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252 |
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253 public static Annotation [] toArray(Iterator<Annotation> iter) { |
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254 |
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255 ArrayList<Annotation> list = new ArrayList<Annotation>(); |
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256 |
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257 while (iter.hasNext()) { |
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258 list.add(iter.next()); |
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259 } |
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260 |
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261 return list.toArray(new Annotation[list.size()]); |
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262 } |
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263 |
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264 public Annotation findByKm(double km) { |
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265 Annotation key = new Annotation(km); |
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266 int idx = Arrays.binarySearch(annotations, key, KM_CMP); |
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267 return idx < 0 ? null : annotations[idx]; |
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268 } |
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269 |
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270 private static SQLQuery createQuery(String query) { |
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271 Session session = SessionHolder.HOLDER.get(); |
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272 |
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273 return session.createSQLQuery(query) |
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274 .addScalar("a", StandardBasicTypes.DOUBLE) |
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275 .addScalar("b", StandardBasicTypes.DOUBLE) |
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276 .addScalar("position", StandardBasicTypes.STRING) |
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277 .addScalar("attribute", StandardBasicTypes.STRING) |
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278 .addScalar("name", StandardBasicTypes.STRING) |
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279 .addScalar("top", StandardBasicTypes.DOUBLE) |
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280 .addScalar("bottom", StandardBasicTypes.DOUBLE); |
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281 } |
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282 |
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283 private static Annotation [] buildAnnotations(List<Object []> list) { |
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284 Annotation [] anns = new Annotation[list.size()]; |
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285 |
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286 // Names are likely the same because they are a type |
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287 // like 'Pegel' or 'Hafen'. |
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288 HashMap<String, String> names = new HashMap<String, String>(); |
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289 |
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290 for (int i = 0; i < anns.length; ++i) { |
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291 Object [] data = list.get(i); |
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292 double a = ((Double)data[0]); |
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293 double b = data[1] != null ? (Double)data[1] : Double.NaN; |
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294 String position = (String)data[2]; |
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295 String attribute = (String)data[3]; |
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296 String name = (String)data[4]; |
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297 double top = data[5] != null ? (Double)data[5] : Double.NaN; |
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298 double bottom = data[6] != null ? (Double)data[6] : Double.NaN; |
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299 |
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300 if (name != null) { |
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301 String old = names.get(name); |
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302 if (old != null) { |
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303 name = old; |
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304 } |
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305 else { |
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306 names.put(name, name); |
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307 } |
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308 } |
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309 |
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310 anns[i] = new Annotation( |
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311 a, b, position, attribute, name, top, bottom); |
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312 } |
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313 |
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314 return anns; |
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315 } |
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316 |
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317 public static Annotation [] loadByRiverName(String riverName) { |
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318 |
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319 SQLQuery query = createQuery(SQL_BY_RIVER_NAME); |
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320 |
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321 query.setString("river_name", riverName); |
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322 |
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323 return buildAnnotations(query.list()); |
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324 } |
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325 |
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326 public static Annotation [] loadByRiverId(int riverId) { |
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327 |
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328 SQLQuery query = createQuery(SQL_BY_RIVER_ID); |
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329 |
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330 query.setInteger("river_id", riverId); |
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331 |
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332 return buildAnnotations(query.list()); |
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333 } |
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334 } |
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335 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |