Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/map/HWSFactory.java @ 5863:4897a58c8746

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River artifacts: Added new copyright headers.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:40:59 +0200
parents 5aa05a7a34b7
children af13ceeba52a
rev   line source
5863
4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
diff changeset
1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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2 * Software engineering by Intevation GmbH
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Sascha L. Teichmann <teichmann@intevation.de>
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3 *
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Sascha L. Teichmann <teichmann@intevation.de>
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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.artifacts.model.map;
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10
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11 import java.util.List;
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12
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13 import net.sf.ehcache.Cache;
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14 import net.sf.ehcache.Element;
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15
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16 import org.apache.log4j.Logger;
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17 import org.hibernate.SQLQuery;
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18 import org.hibernate.Session;
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19 import org.hibernate.type.StandardBasicTypes;
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20 import org.hibernatespatial.GeometryUserType;
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21
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22 import com.vividsolutions.jts.geom.Geometry;
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23
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24 import org.dive4elements.river.artifacts.cache.CacheFactory;
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25 import org.dive4elements.river.backend.SessionHolder;
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26
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27
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28 public class HWSFactory
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29 {
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30 /** Private logger to use here. */
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31 private static Logger log = Logger.getLogger(HWSFactory.class);
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32
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33 private static final int HWS_LINES = 0;
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34 private static final int HWS_POINTS = 1;
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35
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36 public static final String SQL_SELECT_LINES =
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37 "SELECT hl.name, hl.geom, hl.id, hl.kind_id, hl.official, fs.name AS fed, hl.description " +
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38 " FROM hws_lines hl" +
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39 " JOIN rivers r ON hl.river_id = r.id" +
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40 " LEFT JOIN fed_states fs ON hl.fed_state_id = fs.id" +
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41 " WHERE r.name = :river";
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42
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43 public static final String SQL_SELECT_POINTS =
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44 "SELECT hp.name, hp.geom, hp.id, hp.kind_id, hp.official, fs.name AS fed, hp.description " +
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45 " FROM hws_points hp" +
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46 " JOIN rivers r ON hp.river_id = r.id" +
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47 " LEFT JOIN fed_states fs ON hp.fed_state_id = fs.id" +
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48 " WHERE r.name = :river";
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49
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50
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51 private HWSFactory() {
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52 }
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53
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54
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55 public static HWSContainer getHWSLines(String river) {
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56 log.debug("HWSFactory.getHWS");
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57 Cache cache = CacheFactory.getCache(StaticHWSCacheKey.CACHE_NAME);
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58
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59 StaticHWSCacheKey cacheKey;
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60
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61 if (cache != null) {
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62 cacheKey = new StaticHWSCacheKey(river, HWS_LINES);
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63 Element element = cache.get(cacheKey);
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64 if (element != null) {
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65 log.debug("Got static hws values from cache");
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66 return (HWSContainer)element.getValue();
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67 }
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68 }
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69 else {
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70 cacheKey = null;
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71 }
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72
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73 HWSContainer values = getHWSLinesUncached(river);
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74
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75 if (values != null && cacheKey != null) {
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76 log.debug("Store static hws values in cache.");
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77 Element element = new Element(cacheKey, values);
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78 cache.put(element);
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79 }
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80 return values;
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81 }
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82
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83 public static HWSContainer getHWSPoints(String river) {
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84 log.debug("HWSFactory.getHWS");
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85 Cache cache = CacheFactory.getCache(StaticHWSCacheKey.CACHE_NAME);
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86
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87 StaticHWSCacheKey cacheKey;
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88
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89 if (cache != null) {
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90 cacheKey = new StaticHWSCacheKey(river, HWS_LINES);
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91 Element element = cache.get(cacheKey);
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92 if (element != null) {
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93 log.debug("Got static hws values from cache");
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94 return (HWSContainer)element.getValue();
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95 }
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96 }
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97 else {
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98 cacheKey = null;
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99 }
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100
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101 HWSContainer values = getHWSPointsUncached(river);
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102
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103 if (values != null && cacheKey != null) {
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104 log.debug("Store static hws values in cache.");
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105 Element element = new Element(cacheKey, values);
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106 cache.put(element);
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107 }
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108 return values;
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109 }
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110
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111 private static HWSContainer getHWSLinesUncached(String river) {
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112 if (log.isDebugEnabled()) {
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113 log.debug("HWSFactory.getHWSLinesUncached");
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114 }
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115
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116 Session session = SessionHolder.HOLDER.get();
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117 SQLQuery sqlQuery = null;
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118 HWSContainer container = new HWSContainer();
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119 container.setRiver(river);
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120 container.setType(HWS.TYPE.LINE);
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121 sqlQuery = session.createSQLQuery(SQL_SELECT_LINES)
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122 .addScalar("name", StandardBasicTypes.STRING)
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123 .addScalar("geom", GeometryUserType.TYPE)
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124 .addScalar("id", StandardBasicTypes.STRING)
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125 .addScalar("kind_id", StandardBasicTypes.INTEGER)
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126 .addScalar("official", StandardBasicTypes.INTEGER)
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127 .addScalar("fed", StandardBasicTypes.STRING)
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128 .addScalar("description", StandardBasicTypes.STRING);
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129
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130 sqlQuery.setString("river", river);
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131 List<Object []> resultsLines = sqlQuery.list();
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132
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133 for (Object [] row: resultsLines) {
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134 container.addHws(
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135 new HWS(
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136 (String) row[0],
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137 (Geometry) row[1],
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138 (String) row[2],
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139 (Integer) row[3],
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140 (Integer) row[4],
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141 (String) row[5],
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142 (String) row[6],
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143 HWS.TYPE.LINE));
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144 }
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145
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146 return container;
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147 }
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148
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149 private static HWSContainer getHWSPointsUncached(String river) {
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150 if (log.isDebugEnabled()) {
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151 log.debug("HWSFactory.getHWSLinesUncached");
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152 }
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153
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154 Session session = SessionHolder.HOLDER.get();
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155 SQLQuery sqlQuery = null;
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156 HWSContainer container = new HWSContainer();
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157 container.setRiver(river);
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158 container.setType(HWS.TYPE.LINE);
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159 sqlQuery = session.createSQLQuery(SQL_SELECT_POINTS)
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160 .addScalar("name", StandardBasicTypes.STRING)
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161 .addScalar("geom", GeometryUserType.TYPE)
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162 .addScalar("id", StandardBasicTypes.STRING)
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163 .addScalar("kind_id", StandardBasicTypes.INTEGER)
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164 .addScalar("official", StandardBasicTypes.INTEGER)
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165 .addScalar("fed", StandardBasicTypes.STRING)
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166 .addScalar("description", StandardBasicTypes.STRING);
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167
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168 sqlQuery.setString("river", river);
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169 List<Object []> resultsPoints = sqlQuery.list();
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170
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171 for (int i = 0; i < resultsPoints.size(); i++) {
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172 Object[] row = resultsPoints.get(i);
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173 container.addHws(
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174 new HWS(
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175 (String) row[0],
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176 (Geometry) row[1],
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177 (String) row[2],
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178 (Integer) row[3],
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179 (Integer) row[4],
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180 (String) row[5],
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181 (String) row[6],
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182 HWS.TYPE.POINT));
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183 }
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184
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185 return container;
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186 }
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187 }
http://dive4elements.wald.intevation.org