Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/WstValueTableFactory.java @ 9801:1d7a72a50183 3.2.x tip
Assume Compose V2, consistently
author | Tom Gottfried <tom@intevation.de> |
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date | Thu, 23 Nov 2023 10:14:13 +0100 |
parents | 0a5239a1e46e |
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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; |
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10 |
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11 import java.util.Arrays; |
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12 import java.util.List; |
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13 import java.util.ArrayList; |
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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.dive4elements.river.artifacts.cache.CacheFactory; |
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19 |
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20 import org.dive4elements.river.backend.SessionHolder; |
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21 |
9726 | 22 import org.apache.logging.log4j.Logger; |
23 import org.apache.logging.log4j.LogManager; | |
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24 |
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25 import org.dive4elements.river.model.River; |
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26 import org.dive4elements.river.model.Wst; |
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27 |
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28 import org.hibernate.Session; |
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29 import org.hibernate.Query; |
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30 import org.hibernate.SQLQuery; |
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31 |
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32 import org.hibernate.type.StandardBasicTypes; |
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33 |
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34 /** |
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35 * Creates WstValueTable s from database. |
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36 * WstValueTable s are used to interpolate given w/q/km values. |
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37 */ |
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38 public class WstValueTableFactory |
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39 { |
9726 | 40 private static Logger log = LogManager.getLogger(WstValueTableFactory.class); |
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41 |
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42 public static final int DEFAULT_KIND = 0; |
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43 |
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44 // TODO: put this into a property file |
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45 |
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46 public static final String HQL_WST = |
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47 "from Wst where river=:river and kind=:kind"; |
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48 |
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49 public static final String SQL_SELECT_NAMES_POS = |
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50 "SELECT position, name FROM wst_columns " + |
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51 "WHERE wst_id = :wst_id ORDER BY position"; |
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52 |
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53 /** Select Qs for wst (view sorted by column). */ |
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54 public static final String SQL_SELECT_QS = |
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55 "SELECT column_pos, q, a, b FROM wst_q_values " + |
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56 "WHERE wst_id = :wst_id"; |
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57 |
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58 // (sorted by km) |
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59 public static final String SQL_SELECT_WS = |
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60 "SELECT km, w, column_pos FROM wst_w_values " + |
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61 "WHERE wst_id = :wst_id"; |
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62 |
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63 /** Statement to query qranges of a single column. */ |
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64 public static final String SQL_SELECT_QS_AT_COL = |
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65 "SELECT q, a, b FROM wst_q_values " + |
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66 "WHERE wst_id = :wst_id AND column_pos = :column_pos"; |
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67 |
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68 // (sorted by km) |
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69 public static final String SQL_SELECT_WS_AT_COL = |
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70 "SELECT km, w FROM wst_w_values " + |
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71 "WHERE wst_id = :wst_id AND column_pos = :column_pos"; |
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72 |
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73 |
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74 private WstValueTableFactory() { |
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75 } |
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76 |
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77 |
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78 public static WstValueTable getTable(River river) { |
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79 return getTable(river, DEFAULT_KIND); |
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80 } |
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81 |
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82 |
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83 /** |
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84 * Get WstValueTable to interpolate values of a given Wst. |
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85 */ |
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86 public static WstValueTable getTable(int wst_id) { |
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87 |
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88 Cache cache = CacheFactory.getCache(WstValueTableCacheKey.CACHE_NAME); |
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89 |
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90 WstValueTableCacheKey cacheKey; |
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91 |
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92 if (cache != null) { |
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93 // "-1" is the symbolic river-id for "no river, but wst_id". |
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94 cacheKey = new WstValueTableCacheKey(-1, wst_id); |
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95 Element element = cache.get(cacheKey); |
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96 if (element != null) { |
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97 log.debug("Got specific wst value table from cache"); |
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98 return (WstValueTable) element.getValue(); |
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99 } |
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100 } |
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101 else { |
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102 cacheKey = null; |
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103 } |
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104 |
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105 Session session = SessionHolder.HOLDER.get(); |
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106 |
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107 // Fetch data for one column only. |
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108 |
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109 WstValueTable.Column [] columns = loadColumns(session, wst_id); |
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110 loadQRanges(session, columns, wst_id); |
8856 | 111 List<WstValueTable.Row> rows = loadRows( |
112 session, wst_id, columns.length); | |
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113 |
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114 WstValueTable valueTable = new WstValueTable(columns, rows); |
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115 |
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116 if (valueTable != null && cacheKey != null) { |
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117 log.debug("Store wst value table in cache"); |
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118 Element element = new Element(cacheKey, valueTable); |
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119 cache.put(element); |
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120 } |
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121 |
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122 return valueTable; |
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123 } |
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124 |
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125 /** |
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126 * Get Table for a specific column of a wst. |
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127 */ |
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128 public static WstValueTable getWstColumnTable(int wst_id, int col_pos) { |
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129 |
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130 Cache cache = CacheFactory.getCache(WstValueTableCacheKey.CACHE_NAME); |
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131 |
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132 WstValueTableCacheKey cacheKey; |
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133 |
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134 if (cache != null) { |
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135 // A negaitve/negative number is the symbolic 'river-id' for |
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136 // "no river and kind but wst_id and colpos". |
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137 cacheKey = new WstValueTableCacheKey(-wst_id, -col_pos); |
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138 Element element = cache.get(cacheKey); |
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139 if (element != null) { |
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140 log.debug("Got specific wst value table from cache"); |
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141 return (WstValueTable) element.getValue(); |
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142 } |
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143 } |
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144 else { |
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145 cacheKey = null; |
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146 } |
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147 |
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148 Session session = SessionHolder.HOLDER.get(); |
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149 |
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150 // Fetch data for one column only. |
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151 |
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152 WstValueTable.Column [] columns = loadColumn(session, wst_id, col_pos); |
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153 loadQRanges(session, columns, wst_id, col_pos); |
8856 | 154 List<WstValueTable.Row> rows = loadRowsOneColumn( |
155 session, wst_id, col_pos); | |
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156 |
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157 WstValueTable valueTable = new WstValueTable(columns, rows); |
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158 |
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159 if (valueTable != null && cacheKey != null) { |
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160 log.debug("Store wst value table in cache (wst: " |
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161 + wst_id + "/ col: " + col_pos + ")"); |
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162 Element element = new Element(cacheKey, valueTable); |
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163 cache.put(element); |
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164 } |
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165 |
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166 return valueTable; |
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167 } |
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168 |
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169 |
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170 /** |
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171 * Get table for first wst of given kind at given river. |
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172 */ |
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173 public static WstValueTable getTable(River river, int kind) { |
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174 |
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175 Cache cache = CacheFactory.getCache(WstValueTableCacheKey.CACHE_NAME); |
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176 |
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177 WstValueTableCacheKey cacheKey; |
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178 |
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179 if (cache != null) { |
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180 cacheKey = new WstValueTableCacheKey(river.getId(), kind); |
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181 Element element = cache.get(cacheKey); |
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182 if (element != null) { |
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183 log.debug("got wst value table from cache"); |
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184 return (WstValueTable)element.getValue(); |
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185 } |
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186 } |
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187 else { |
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188 cacheKey = null; |
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189 } |
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190 |
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191 WstValueTable valueTable = getTableUncached(river, kind); |
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192 |
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193 if (valueTable != null && cacheKey != null) { |
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194 log.debug("store wst value table in cache"); |
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195 Element element = new Element(cacheKey, valueTable); |
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196 cache.put(element); |
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197 } |
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198 |
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199 return valueTable; |
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200 } |
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201 |
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202 public static WstValueTable getTableUncached(River river) { |
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203 return getTableUncached(river, DEFAULT_KIND); |
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204 } |
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205 |
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206 public static WstValueTable getTableUncached(River river, int kind) { |
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207 |
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208 Session session = SessionHolder.HOLDER.get(); |
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209 |
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210 Wst wst = loadWst(session, river, kind); |
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211 |
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212 if (wst == null) { |
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213 return null; |
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214 } |
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215 |
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216 WstValueTable.Column [] columns = loadColumns(session, wst); |
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217 |
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218 loadQRanges(session, columns, wst); |
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219 |
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220 List<WstValueTable.Row> rows = loadRows(session, wst, columns.length); |
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221 |
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222 return new WstValueTable(columns, rows); |
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223 } |
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224 |
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225 /** |
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226 * @param kind Kind of wst. |
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227 */ |
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228 protected static Wst loadWst(Session session, River river, int kind) { |
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229 Query query = session.createQuery(HQL_WST); |
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230 query.setParameter("river", river); |
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231 query.setInteger("kind", kind); |
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232 |
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233 List<Wst> wsts = query.list(); |
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234 |
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235 // TODO Multiple wsts can match, why return just the first one? |
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236 return wsts.isEmpty() ? null : wsts.get(0); |
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237 } |
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238 |
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239 |
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240 /** |
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241 * Load rows with a single columns result. |
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242 * |
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243 * @param session session to use for querying db. |
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244 * @param wstId id of wst (in db). |
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245 * @param column_pos the column_pos (within the db) of the wst_value_table |
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246 * of which the values shall be fetched. |
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247 * |
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248 * @return resultant rows. |
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249 */ |
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250 protected static List<WstValueTable.Row> loadRowsOneColumn( |
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251 Session session, |
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252 int wstId, |
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253 int column_pos |
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254 ) { |
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255 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_WS_AT_COL) |
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256 .addScalar("km", StandardBasicTypes.DOUBLE) |
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257 .addScalar("w", StandardBasicTypes.DOUBLE); |
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258 |
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259 sqlQuery.setInteger("wst_id", wstId); |
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260 sqlQuery.setInteger("column_pos", column_pos); |
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261 |
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262 List<Object []> results = sqlQuery.list(); |
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263 |
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264 double [] ws = null; |
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265 |
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266 List<WstValueTable.Row> rows = |
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267 new ArrayList<WstValueTable.Row>(results.size()); |
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268 |
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269 // Walk over rows. |
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270 for (Object [] result: results) { |
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271 ws = new double[1]; |
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272 WstValueTable.Row row = |
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273 new WstValueTable.Row((Double) result[0], ws); |
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274 rows.add(row); |
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275 |
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276 Double w = (Double) result[1]; |
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277 ws[0] = w != null ? w : Double.NaN; |
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278 } |
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279 |
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280 return rows; |
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281 } |
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282 |
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283 protected static List<WstValueTable.Row> loadRows( |
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284 Session session, |
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285 int wst_id, |
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286 int numColumns |
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287 ) { |
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288 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_WS) |
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289 .addScalar("km", StandardBasicTypes.DOUBLE) |
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290 .addScalar("w", StandardBasicTypes.DOUBLE) |
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291 .addScalar("column_pos", StandardBasicTypes.INTEGER); |
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292 |
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293 sqlQuery.setInteger("wst_id", wst_id); |
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294 |
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295 List<Object []> results = sqlQuery.list(); |
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296 |
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297 int lastColumn = Integer.MAX_VALUE; |
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298 double [] ws = null; |
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299 |
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300 ArrayList<WstValueTable.Row> rows = new ArrayList<WstValueTable.Row>(); |
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301 |
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302 for (Object [] result: results) { |
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303 int column = (Integer)result[2]; |
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304 if (column < lastColumn) { |
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305 ws = new double[numColumns]; |
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306 Arrays.fill(ws, Double.NaN); |
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307 WstValueTable.Row row = |
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308 new WstValueTable.Row((Double)result[0], ws); |
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309 rows.add(row); |
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310 } |
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311 Double w = (Double)result[1]; |
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(issue1787) Globally sorting WST-columns over avg(Q)+max(Q) might give unexpected results at some kms. We thus sort locally since Rev 93a31cfb18c0.
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parents:
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312 ws[column] = w != null ? w : Double.NaN; |
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313 lastColumn = column; |
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314 } |
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315 |
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316 rows.trimToSize(); |
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317 return rows; |
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318 } |
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319 |
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320 protected static List<WstValueTable.Row> loadRows( |
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321 Session session, |
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322 Wst wst, |
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323 int numColumns |
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324 ) { |
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325 return loadRows(session, wst.getId(), numColumns); |
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326 } |
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327 |
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328 |
1909
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329 protected static WstValueTable.Column [] loadColumn( |
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330 Session session, |
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331 int wst_id, |
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332 int col_pos |
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333 ) { |
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334 return new WstValueTable.Column [] { |
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335 new WstValueTable.Column(WKmsFactory.getWKmsName(col_pos, wst_id))}; |
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336 } |
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337 |
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338 |
1839
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339 /** |
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340 * Get columns from wst-id. |
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341 */ |
633
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342 protected static WstValueTable.Column [] loadColumns( |
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343 Session session, |
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344 int wst_id |
633
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345 ) { |
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346 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_NAMES_POS) |
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347 .addScalar("position", StandardBasicTypes.INTEGER) |
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348 .addScalar("name", StandardBasicTypes.STRING); |
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349 |
1839
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350 sqlQuery.setInteger("wst_id", wst_id); |
633
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351 |
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352 List<Object []> columnNames = sqlQuery.list(); |
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353 |
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354 WstValueTable.Column [] columns = |
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355 new WstValueTable.Column[columnNames.size()]; |
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356 |
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357 for (int i = 0; i < columns.length; ++i) { |
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358 columns[i] = new WstValueTable.Column( |
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359 (String)columnNames.get(i)[1]); |
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360 } |
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361 return columns; |
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362 } |
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363 |
1839
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parents:
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364 /** |
c3b44da22a3a
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365 * Get columns from Wst. |
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366 */ |
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367 protected static WstValueTable.Column [] loadColumns( |
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368 Session session, |
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369 Wst wst |
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370 ) { |
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371 return loadColumns(session, wst.getId()); |
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372 } |
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373 |
1909
4b64692b2d1e
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parents:
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374 |
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375 /** |
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376 * Build a QRange-Tree. |
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377 */ |
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378 protected static void loadQRanges( |
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379 Session session, |
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380 WstValueTable.Column [] columns, |
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381 int wst_id, |
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382 int column_pos |
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383 ) { |
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384 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_QS_AT_COL) |
2609
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Little optimization when fetching q ranges for single columns of wsts.
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385 .addScalar("q", StandardBasicTypes.DOUBLE) |
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386 .addScalar("a", StandardBasicTypes.DOUBLE) |
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387 .addScalar("b", StandardBasicTypes.DOUBLE); |
1909
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parents:
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388 |
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389 sqlQuery.setInteger("wst_id", wst_id); |
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390 sqlQuery.setInteger("column_pos", column_pos); |
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391 |
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392 List<Object []> qRanges = sqlQuery.list(); |
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393 |
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394 int qSize = qRanges.size(); |
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395 |
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396 QRangeTree qRangeTree = new QRangeTree( |
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397 qRanges, QRangeTree.WITHOUT_COLUMN, 0, qSize); |
1909
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398 columns[0].setQRangeTree(qRangeTree); |
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399 } |
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|
400 |
8705
682a26e4158b
(issue1787) Globally sorting WST-columns over avg(Q)+max(Q) might give unexpected results at some kms. We thus sort locally since Rev 93a31cfb18c0.
Tom Gottfried <tom@intevation.de>
parents:
5994
diff
changeset
|
401 protected static void loadQRanges( |
633
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402 Session session, |
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403 WstValueTable.Column [] columns, |
1839
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|
404 int wst_id |
633
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405 ) { |
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406 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_QS) |
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407 .addScalar("column_pos", StandardBasicTypes.INTEGER) |
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408 .addScalar("q", StandardBasicTypes.DOUBLE) |
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409 .addScalar("a", StandardBasicTypes.DOUBLE) |
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410 .addScalar("b", StandardBasicTypes.DOUBLE); |
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411 |
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c3b44da22a3a
Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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412 sqlQuery.setInteger("wst_id", wst_id); |
633
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413 |
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414 List<Object []> qRanges = sqlQuery.list(); |
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415 |
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416 int start = -1; |
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417 int Q = qRanges.size(); |
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418 Integer lastColumn = null; |
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419 |
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420 for (int i = 0; i < Q; ++i) { |
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421 Object [] qRange = qRanges.get(i); |
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422 Integer columnId = (Integer)qRange[0]; |
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423 if (lastColumn == null) { |
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424 lastColumn = columnId; |
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425 start = i; |
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426 } |
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427 else if (!lastColumn.equals(columnId)) { |
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428 QRangeTree qRangeTree = new QRangeTree(qRanges, start, i); |
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429 columns[lastColumn].setQRangeTree(qRangeTree); |
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430 lastColumn = columnId; |
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431 start = i; |
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432 } |
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433 } |
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434 |
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435 if (start != -1) { |
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436 QRangeTree qRangeTree = new QRangeTree(qRanges, start, Q); |
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437 columns[lastColumn].setQRangeTree(qRangeTree); |
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438 } |
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439 |
742
c09c9e05ecfa
Removed trailing whitespace.
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440 /* This is debug code to visualize the q ranges trees |
633
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441 |
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442 java.io.PrintWriter out = null; |
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443 try { |
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444 out = new java.io.PrintWriter( |
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445 new java.io.FileWriter( |
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446 "/tmp/qranges" + System.currentTimeMillis() + ".dot")); |
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parents:
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447 |
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448 out.println("graph \"Q ranges trees\" {"); |
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changeset
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449 |
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changeset
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450 for (int i = 0; i < columns.length; ++i) { |
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451 QRangeTree tree = columns[i].getQRangeTree(); |
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452 out.println(tree.toGraph()); |
443
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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453 } |
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
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parents:
diff
changeset
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454 |
633
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parents:
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diff
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455 out.println("}"); |
443
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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456 |
633
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WST value table: Qs are now stored in ranges for each column.
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457 out.flush(); |
443
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
458 } |
633
d08f77e7f7e8
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459 catch (java.io.IOException ioe) { |
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460 log.error(ioe); |
443
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
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parents:
diff
changeset
|
461 } |
633
d08f77e7f7e8
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462 finally { |
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diff
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|
463 if (out != null) { |
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|
464 out.close(); |
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parents:
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465 } |
d08f77e7f7e8
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466 } |
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467 */ |
1839
c3b44da22a3a
Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
1780
diff
changeset
|
468 } |
c3b44da22a3a
Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
1780
diff
changeset
|
469 |
8705
682a26e4158b
(issue1787) Globally sorting WST-columns over avg(Q)+max(Q) might give unexpected results at some kms. We thus sort locally since Rev 93a31cfb18c0.
Tom Gottfried <tom@intevation.de>
parents:
5994
diff
changeset
|
470 protected static void loadQRanges( |
1839
c3b44da22a3a
Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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diff
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|
471 Session session, |
c3b44da22a3a
Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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diff
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|
472 WstValueTable.Column [] columns, |
c3b44da22a3a
Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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|
473 Wst wst |
c3b44da22a3a
Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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diff
changeset
|
474 ) { |
8705
682a26e4158b
(issue1787) Globally sorting WST-columns over avg(Q)+max(Q) might give unexpected results at some kms. We thus sort locally since Rev 93a31cfb18c0.
Tom Gottfried <tom@intevation.de>
parents:
5994
diff
changeset
|
475 loadQRanges(session, columns, wst.getId()); |
633
d08f77e7f7e8
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parents:
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|
476 } |
443
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
477 |
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff
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|
478 } |
5d65fe4c08d5
Separated the WST table loading logic from the calculations.
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479 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |