Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/sq/StaticSQFactory.java @ 8694:9bb7f19cbb6f
(issue1750) Use new MeasuremenStation-methods to find companion station and do less checking for inconsistent data (schema or at least importer do the job now).
author | Tom Gottfried <tom@intevation.de> |
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date | Mon, 20 Apr 2015 10:23:40 +0200 |
parents | b0e5a2ce0b09 |
children | 0a5239a1e46e |
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.sq; |
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10 |
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11 import java.math.BigDecimal; |
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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.Query; |
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20 import org.hibernate.Session; |
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21 |
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22 import org.dive4elements.river.artifacts.cache.CacheFactory; |
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23 import org.dive4elements.river.backend.SessionHolder; |
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24 import org.dive4elements.river.model.MeasurementStation; |
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25 |
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26 |
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27 public class StaticSQFactory |
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28 { |
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29 private static final Logger log = |
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30 Logger.getLogger(StaticSQFactory.class); |
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31 |
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32 public static final String SQL_SQ = |
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33 "SELECT " + |
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34 "sq.description AS description,"+ |
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35 "ti.start_time AS start_time," + |
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36 "ti.stop_time AS stop_time, " + |
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37 "ms.name AS station_name, " + |
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38 "CASE WHEN r.km_up = 1 AND ra.b IS NOT NULL " + |
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39 "THEN ra.b " + |
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40 "ELSE ra.a " + |
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41 "END AS station_km, " + |
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42 "ms.measurement_type AS measurement_type, " + |
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43 "sqv.parameter AS parameter, " + |
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44 "sqv.a AS a, " + |
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45 "sqv.b AS b, " + |
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46 "sqv.qmax AS qmax " + |
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47 "FROM sq_relation sq " + |
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48 "JOIN time_intervals ti ON ti.id = sq.time_interval_id " + |
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49 "JOIN sq_relation_value sqv ON sqv.sq_relation_id = sq.id " + |
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50 "JOIN measurement_station ms " + |
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51 "ON sqv.measurement_station_id = ms.id " + |
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52 "JOIN ranges ra ON ra.id = ms.range_id " + |
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53 "JOIN rivers r ON r.id = ra.river_id "; |
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54 |
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55 public static final String STATION_CLAUSE = |
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56 "WHERE " + |
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57 "r.name = :river " + |
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58 "AND ms.id = :ms_id "; |
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59 |
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60 public static final String ID_CLAUSE = |
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61 "WHERE " + |
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62 "sqv.id = :dis_id "; |
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63 |
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64 private StaticSQFactory() { |
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65 } |
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66 |
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67 /** Get SQ relations for a measurement station's location. |
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68 * Returns all SQRelations for the location of the station and |
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69 * not just for the station. E.g. for a "Geschiebemessstelle" |
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70 * and a "Schwebstoffmesstelle" at the same place.*/ |
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71 public static StaticSQContainer getSQRelationsForLocation( |
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72 String river, |
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73 int mStationId |
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74 ) { |
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75 Session session = SessionHolder.HOLDER.get(); |
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76 Query query = session.createQuery( |
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77 "from MeasurementStation " + |
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78 "where id=:ms_id") |
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79 .setParameter("ms_id", mStationId); |
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80 MeasurementStation mStation = (MeasurementStation)query.list().get(0); |
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81 |
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82 /* Take the first container for the station requested. */ |
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83 StaticSQContainer retval = getSQRelations(river, mStationId); |
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84 |
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85 /* And it's companion station */ |
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86 MeasurementStation companion = mStation.findCompanionStation(); |
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87 if (companion != null) { |
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88 int stationId = companion.getId(); |
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89 StaticSQContainer additional = getSQRelations(river, stationId); |
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90 if (additional == null || additional.getSQRelations() == null) { |
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91 /* New one is empty, just take the old one. */ |
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92 return retval; |
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93 } |
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94 if (retval == null || |
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95 retval.getSQRelations() == null || |
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96 retval.getSQRelations().isEmpty()) { |
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97 /* Old one is empty, just take the new one. */ |
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98 return additional; |
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99 } |
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100 for (StaticSQRelation add: additional.getSQRelations()) { |
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101 /* Add SQ relations from new one to old one */ |
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102 retval.addSQRelation(add); |
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103 } |
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104 } |
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105 return retval; |
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106 } |
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107 |
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108 |
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109 public static StaticSQContainer getSQRelations( |
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110 String river, |
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111 int mStationId |
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112 ) { |
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113 Cache cache = CacheFactory.getCache(StaticSQCacheKey.CACHE_NAME); |
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114 |
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115 StaticSQCacheKey cacheKey; |
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116 |
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117 if (cache != null) { |
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118 cacheKey = new StaticSQCacheKey(river, mStationId); |
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119 Element element = cache.get(cacheKey); |
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120 if (element != null) { |
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121 log.debug("Got static sq relations from cache"); |
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122 return (StaticSQContainer)element.getValue(); |
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123 } |
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124 } |
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125 else { |
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126 cacheKey = null; |
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127 } |
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128 |
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129 StaticSQContainer values = getUncached(river, mStationId); |
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130 |
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131 if (values != null && cacheKey != null) { |
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132 log.debug("Store static sq relations in cache."); |
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133 Element element = new Element(cacheKey, values); |
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134 cache.put(element); |
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135 } |
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136 return values; |
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137 } |
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138 |
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139 public static StaticSQContainer getDistinctRelation(int id) { |
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140 Session session = SessionHolder.HOLDER.get(); |
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141 |
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142 Query query = session.createSQLQuery(SQL_SQ + ID_CLAUSE) |
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143 .addScalar("description") |
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144 .addScalar("start_time") |
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145 .addScalar("stop_time") |
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146 .addScalar("station_name") |
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147 .addScalar("station_km") |
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148 .addScalar("measurement_type") |
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149 .addScalar("parameter") |
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150 .addScalar("a") |
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151 .addScalar("b") |
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152 .addScalar("qmax"); |
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153 |
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154 query.setParameter("dis_id", id); |
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155 |
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156 /* This could be done nicer with hibernate */ |
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157 List<Object []> list = query.list(); |
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158 if (list.isEmpty()) { |
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159 log.debug("Query returened nothing"); |
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160 return null; |
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161 } |
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162 Object [] row = list.get(0); |
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163 |
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164 StaticSQContainer sq = new StaticSQContainer(); |
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165 sq.setDescription((String)list.get(0)[0]); |
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166 sq.setStationName((String)list.get(0)[3]); |
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167 sq.setKm(((BigDecimal)list.get(0)[4]).doubleValue()); |
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168 |
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169 StaticSQRelation relation = new StaticSQRelation(); |
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170 relation.setStartTime((Date)row[1]); |
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171 relation.setStopTime((Date)row[2]); |
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172 relation.setType((String)row[5]); |
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173 relation.setParameter((String)row[6]); |
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174 relation.setA(((BigDecimal)row[7]).doubleValue()); |
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175 relation.setB(((BigDecimal)row[8]).doubleValue()); |
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176 relation.setQmax(((BigDecimal)row[9]).doubleValue()); |
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177 sq.addSQRelation(relation); |
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178 |
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179 return sq; |
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180 } |
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181 |
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182 private static StaticSQContainer getUncached( |
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183 String river, |
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184 int mStationId |
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185 ) { |
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186 Session session = SessionHolder.HOLDER.get(); |
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187 |
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188 Query query = session.createSQLQuery(SQL_SQ + STATION_CLAUSE) |
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189 .addScalar("description") |
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190 .addScalar("start_time") |
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191 .addScalar("stop_time") |
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192 .addScalar("station_name") |
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193 .addScalar("station_km") |
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194 .addScalar("measurement_type") |
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195 .addScalar("parameter") |
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196 .addScalar("a") |
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197 .addScalar("b") |
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198 .addScalar("qmax"); |
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199 |
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200 query.setParameter("river", river); |
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201 query.setParameter("ms_id", mStationId); |
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202 |
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203 List<Object []> list = query.list(); |
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204 |
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205 if (list.isEmpty()) { |
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206 log.debug("Query returned empty"); |
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207 return new StaticSQContainer(); |
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208 } |
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209 |
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210 StaticSQContainer sq = new StaticSQContainer(); |
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211 sq.setDescription((String)list.get(0)[0]); |
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212 sq.setStationName((String)list.get(0)[3]); |
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213 sq.setKm(((BigDecimal)list.get(0)[4]).doubleValue()); |
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214 |
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215 for (Object[] row : list) { |
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216 StaticSQRelation relation = new StaticSQRelation(); |
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217 relation.setStartTime((Date)row[1]); |
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218 relation.setStopTime((Date)row[2]); |
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219 relation.setType((String)row[5]); |
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220 relation.setParameter((String)row[6]); |
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221 relation.setA(((BigDecimal)row[7]).doubleValue()); |
700ac898ab0b
Added Factory and model for static sq relations.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff
changeset
|
222 relation.setB(((BigDecimal)row[8]).doubleValue()); |
700ac898ab0b
Added Factory and model for static sq relations.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff
changeset
|
223 relation.setQmax(((BigDecimal)row[9]).doubleValue()); |
700ac898ab0b
Added Factory and model for static sq relations.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff
changeset
|
224 sq.addSQRelation(relation); |
700ac898ab0b
Added Factory and model for static sq relations.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff
changeset
|
225 } |
700ac898ab0b
Added Factory and model for static sq relations.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff
changeset
|
226 return sq; |
700ac898ab0b
Added Factory and model for static sq relations.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff
changeset
|
227 } |
700ac898ab0b
Added Factory and model for static sq relations.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff
changeset
|
228 } |