annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedHeightFactory.java @ 7829:1aba75321441 minfo-opt

Added morph. active width to bed height difference calculation.
author Raimund Renkert <rrenkert@intevation.de>
date Fri, 28 Mar 2014 11:20:49 +0100
parents 04b70a6fe8c5
children 868f55932fe6
rev   line source
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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.artifacts.model.minfo;
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10
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11
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633fbb61a0cc Split bed heights into bed height epochs and single bed heights.
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12 import java.util.Date;
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13 import java.util.List;
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14
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15 import net.sf.ehcache.Cache;
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16 import net.sf.ehcache.Element;
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17
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18 import org.apache.log4j.Logger;
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19 import org.hibernate.SQLQuery;
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20 import org.hibernate.Session;
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21 import org.hibernate.type.StandardBasicTypes;
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22
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23 import org.dive4elements.river.artifacts.cache.CacheFactory;
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24 import org.dive4elements.river.artifacts.model.StaticBedHeightCacheKey;
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25 import org.dive4elements.river.backend.SessionHolder;
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26
6765
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27
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28 /** Create BedHeights from database. */
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29 public class BedHeightFactory {
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30 /** Private logger to use here. */
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31 private static Logger log = Logger.getLogger(BedHeightFactory.class);
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32
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33 /** Query to get km and ws for wst_id and column_pos. */
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34 public static final String SQL_SELECT_SINGLE =
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35 "SELECT bhsv.height, bhsv.station, bhsv.data_gap, bhsv.sounding_width," +
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36 " bhs.year, bhsv.width" +
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37 " FROM bed_height_single bhs" +
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38 " JOIN bed_height_single_values bhsv on bhsv.bed_height_single_id = bhs.id" +
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39 " WHERE bhs.id = :height_id" +
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40 " ORDER BY bhsv.station";
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41
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42
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43 /** Query to get name for wst_id and column_pos. */
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44 public static final String SQL_SELECT_EPOCH =
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45 "SELECT bv.height, bv.station, ti.start_time, ti.stop_time" +
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46 " FROM bed_height_epoch b" +
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47 " JOIN bed_height_epoch_values bv ON b.id = bv.bed_height_epoch_id" +
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48 " JOIN time_intervals ti ON b.time_interval_id = ti.id" +
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49 " WHERE b.id = :height_id" +
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50 " ORDER BY bhsv.station";
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51
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52 /** Query to get name (description) for wst_id. */
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53 public static final String SQL_SELECT_DESCR_SINGLE =
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54 "SELECT description FROM bed_height_single "+
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55 "WHERE id = :height_id";
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56
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57 /** Query to get name (description) for wst_id. */
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58 public static final String SQL_SELECT_DESCR_EPOCH =
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59 "SELECT description from bed_height_epoch "+
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60 "WHERE id = :height_id";
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61
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62
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63 private BedHeightFactory() {
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64 }
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65
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66
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67 /**
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68 * Get BedHeightData for given type and height_id, caring about the cache.
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69 */
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70 public static BedHeightData getHeight(String type, int height_id, int time) {
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71 log.debug("BedHeightFactory.getHeight");
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72 Cache cache = CacheFactory.getCache(StaticBedHeightCacheKey.CACHE_NAME);
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73
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74 StaticBedHeightCacheKey cacheKey;
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75
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76 if (cache != null) {
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77 cacheKey = new StaticBedHeightCacheKey(height_id, time);
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78 Element element = cache.get(cacheKey);
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79 if (element != null) {
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80 log.debug("Got static bedheight values from cache");
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81 return (BedHeightData)element.getValue();
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82 }
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83 }
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84 else {
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85 cacheKey = null;
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86 }
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87
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88 BedHeightData values = getBedHeightUncached(type, height_id, time);
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89
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90 if (values != null && cacheKey != null) {
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91 log.debug("Store static bed height values in cache.");
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92 Element element = new Element(cacheKey, values);
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93 cache.put(element);
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94 }
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95 return values;
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96 }
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97
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98 /** Get name for a BedHeight. */
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99 public static String getHeightName(String type, int height_id) {
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100 log.debug("BedHeightFactory.getHeightName height_id/" + height_id);
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101
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102 String name = null;
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103 Session session = SessionHolder.HOLDER.get();
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104
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105 SQLQuery nameQuery = null;
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106 if (type.equals("single")) {
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107 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_SINGLE)
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108 .addScalar("description", StandardBasicTypes.STRING);
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109 nameQuery.setInteger("height_id", height_id);
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110 }
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111 else if (type.equals("epoch")) {
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112 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_EPOCH)
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113 .addScalar("description", StandardBasicTypes.STRING);
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114 nameQuery.setInteger("height_id", height_id);
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115 }
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116 else {
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117 return "none";
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118 }
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119 List<String> names = nameQuery.list();
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120 if (!names.isEmpty()) {
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121 name = names.get(0);
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122 }
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123
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124 return name;
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125 }
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126
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127
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128 /**
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129 * Get BedHeightData from db.
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130 * @param height_id database id of the bed_height
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131 * @return according BedHeight.
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132 */
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133 public static BedHeightData getBedHeightUncached(
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134 String type,
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135 int height_id,
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136 int time)
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137 {
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138 if (log.isDebugEnabled()) {
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139 log.debug("BedHeightFactory.getBedHeightUncached");
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140 }
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141
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142 Session session = SessionHolder.HOLDER.get();
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143 SQLQuery sqlQuery = null;
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144 if (type.equals("single")) {
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145 BedHeightSingleData height =
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146 new BedHeightSingleData(getHeightName(type, height_id));
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147 sqlQuery = session.createSQLQuery(SQL_SELECT_SINGLE)
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148 .addScalar("height", StandardBasicTypes.DOUBLE)
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149 .addScalar("station", StandardBasicTypes.DOUBLE)
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150 .addScalar("data_gap", StandardBasicTypes.DOUBLE)
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151 .addScalar("sounding_width", StandardBasicTypes.DOUBLE)
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152 .addScalar("width", StandardBasicTypes.DOUBLE)
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153 .addScalar("year", StandardBasicTypes.INTEGER);
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154 sqlQuery.setInteger("height_id", height_id);
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155 List<Object []> results = sqlQuery.list();
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156
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157 for (Object [] row: results) {
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158 log.debug("got station: " + (Double)row[1]);
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159 Double row0 = row[0] != null ? (Double)row[0] : Double.NaN;
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160 Double row1 = row[1] != null ? (Double)row[1] : Double.NaN;
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161 Double row2 = row[2] != null ? (Double)row[2] : Double.NaN;
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162 Double row3 = row[3] != null ? (Double)row[3] : Double.NaN;
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163 Double row4 = row[4] != null ? (Double)row[4] : Double.NaN;
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164 height.add(row0, row1, row2, row3, row4, (Integer) row[5]);
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165 }
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166 return height;
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167 }
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168 else if (type.equals("epoch")) {
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169 BedHeightEpochData height =
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170 new BedHeightEpochData(getHeightName(type, height_id));
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171 sqlQuery = session.createSQLQuery(SQL_SELECT_EPOCH)
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172 .addScalar("height", StandardBasicTypes.DOUBLE)
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173 .addScalar("station", StandardBasicTypes.DOUBLE)
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174 .addScalar("start_time", StandardBasicTypes.DATE)
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175 .addScalar("stop_time", StandardBasicTypes.DATE);
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176 sqlQuery.setInteger("height_id", height_id);
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177 List<Object []> results = sqlQuery.list();
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178
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179 for (Object [] row: results) {
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180 height.add(
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181 (Double) row[0],
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182 (Double) row[1],
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183 (Date) row[2],
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184 (Date) row[3]);
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185 }
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186 return height;
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187 }
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188 return new BedHeightData();
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189 }
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190 }
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191 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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