Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WstValueTableFactory.java @ 1839:c3b44da22a3a

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Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms. flys-artifacts/trunk@3175 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Mon, 07 Nov 2011 12:37:41 +0000
parents b503d92dd709
children d5e51cc7da23
rev   line source
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1 package de.intevation.flys.artifacts.model;
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2
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3 import java.util.List;
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4 import java.util.ArrayList;
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5
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6 import net.sf.ehcache.Cache;
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7 import net.sf.ehcache.Element;
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8
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9 import de.intevation.flys.artifacts.cache.CacheFactory;
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10
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11 import de.intevation.flys.backend.SessionHolder;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import de.intevation.flys.model.River;
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16 import de.intevation.flys.model.Wst;
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17
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18 import org.hibernate.Session;
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19 import org.hibernate.Query;
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20 import org.hibernate.SQLQuery;
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21
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22 import org.hibernate.type.StandardBasicTypes;
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23
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24 /**
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25 * Creates WstValueTable s from database.
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26 * WstValueTable s are used to interpolate given w/q/km values.
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27 */
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28 public class WstValueTableFactory
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29 {
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30 private static Logger log = Logger.getLogger(WstValueTableFactory.class);
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32 public static final int DEFAULT_KIND = 0;
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33
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34 // TODO: put this into a property file
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35
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36 public static final String HQL_WST =
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37 "from Wst where river=:river and kind=:kind";
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38
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39 public static final String SQL_SELECT_NAMES_POS =
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40 "SELECT position, name FROM wst_columns " +
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41 "WHERE wst_id = :wst_id ORDER BY position";
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42
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43 public static final String SQL_SELECT_QS =
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44 "SELECT column_pos, q, a, b FROM wst_q_values " +
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45 "WHERE wst_id = :wst_id";
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46
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47 public static final String SQL_SELECT_WS =
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48 "SELECT km, w, column_pos FROM wst_w_values " +
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49 "WHERE wst_id = :wst_id";
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50
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51 private WstValueTableFactory() {
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52 }
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53
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54 public static WstValueTable getTable(River river) {
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55 return getTable(river, DEFAULT_KIND);
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56 }
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57
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58
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59 public static WstValueTable getTable(River river, int kind) {
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61 Cache cache = CacheFactory.getCache(WstValueTableCacheKey.CACHE_NAME);
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62
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63 WstValueTableCacheKey cacheKey;
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64
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65 if (cache != null) {
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66 cacheKey = new WstValueTableCacheKey(river.getId(), kind);
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67 Element element = cache.get(cacheKey);
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68 if (element != null) {
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69 log.debug("got wst value table from cache");
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70 return (WstValueTable)element.getValue();
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71 }
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72 }
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73 else {
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74 cacheKey = null;
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75 }
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77 WstValueTable valueTable = getTableUncached(river, kind);
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78
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79 if (valueTable != null && cacheKey != null) {
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80 log.debug("store wst value table in cache");
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81 Element element = new Element(cacheKey, valueTable);
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82 cache.put(element);
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83 }
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84
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85 return valueTable;
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86 }
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87
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88 public static WstValueTable getTableUncached(River river) {
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89 return getTableUncached(river, DEFAULT_KIND);
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90 }
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91
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92 public static WstValueTable getTableUncached(River river, int kind) {
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93
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94 Session session = SessionHolder.HOLDER.get();
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96 Wst wst = loadWst(session, river, kind);
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98 if (wst == null) {
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99 return null;
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100 }
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102 WstValueTable.Column [] columns = loadColumns(session, wst);
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104 loadQRanges(session, columns, wst);
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105
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106 List<WstValueTable.Row> rows = loadRows(session, wst, columns.length);
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107
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108 return new WstValueTable(columns, rows);
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109 }
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110
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111 /**
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112 * @param kind Kind of wst.
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113 */
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114 protected static Wst loadWst(Session session, River river, int kind) {
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115 Query query = session.createQuery(HQL_WST);
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116 query.setParameter("river", river);
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117 query.setInteger("kind", kind);
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118
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119 List<Wst> wsts = query.list();
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120
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121 // TODO Multiple wsts can match, why return just the first one?
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122 return wsts.isEmpty() ? null : wsts.get(0);
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123 }
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124
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125 protected static List<WstValueTable.Row> loadRows(
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126 Session session,
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127 int wst_id,
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128 int numColumns
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129 ){
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130 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_WS)
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131 .addScalar("km", StandardBasicTypes.DOUBLE)
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132 .addScalar("w", StandardBasicTypes.DOUBLE)
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133 .addScalar("column_pos", StandardBasicTypes.INTEGER);
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134
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135 sqlQuery.setInteger("wst_id", wst_id);
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136
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137 List<Object []> results = sqlQuery.list();
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138
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139 int lastColumn = Integer.MAX_VALUE;
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140 double [] ws = null;
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141
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142 ArrayList<WstValueTable.Row> rows = new ArrayList<WstValueTable.Row>();
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143
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144 for (Object [] result: results) {
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145 int column = (Integer)result[2];
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146 if (column < lastColumn) {
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147 ws = new double[numColumns];
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148 WstValueTable.Row row =
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149 new WstValueTable.Row((Double)result[0], ws);
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150 rows.add(row);
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151 }
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152 Double w = (Double)result[1];
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153 ws[column] = w != null ? w : Double.NaN;
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154 lastColumn = column;
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155 }
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156
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157 rows.trimToSize();
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158 return rows;
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159
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160 }
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161
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162 protected static List<WstValueTable.Row> loadRows(
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163 Session session,
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164 Wst wst,
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165 int numColumns
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166 ) {
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167 return loadRows(session, wst.getId(), numColumns);
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168 }
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169
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170
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171 /**
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172 * Get columns from wst-id.
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173 */
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174 protected static WstValueTable.Column [] loadColumns(
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175 Session session,
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176 int wst_id
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177 ) {
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178 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_NAMES_POS)
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179 .addScalar("position", StandardBasicTypes.INTEGER)
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180 .addScalar("name", StandardBasicTypes.STRING);
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181
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182 sqlQuery.setInteger("wst_id", wst_id);
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183
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184 List<Object []> columnNames = sqlQuery.list();
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185
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186 WstValueTable.Column [] columns =
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187 new WstValueTable.Column[columnNames.size()];
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188
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189 for (int i = 0; i < columns.length; ++i) {
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190 columns[i] = new WstValueTable.Column(
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191 (String)columnNames.get(i)[1]);
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192 }
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193 return columns;
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194 }
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195
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196 /**
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197 * Get columns from Wst.
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198 */
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199 protected static WstValueTable.Column [] loadColumns(
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200 Session session,
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201 Wst wst
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202 ) {
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203 return loadColumns(session, wst.getId());
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204 }
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205
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206 protected static void loadQRanges(
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207 Session session,
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208 WstValueTable.Column [] columns,
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209 int wst_id
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210 ) {
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211 SQLQuery sqlQuery = session.createSQLQuery(SQL_SELECT_QS)
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212 .addScalar("column_pos", StandardBasicTypes.INTEGER)
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213 .addScalar("q", StandardBasicTypes.DOUBLE)
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214 .addScalar("a", StandardBasicTypes.DOUBLE)
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215 .addScalar("b", StandardBasicTypes.DOUBLE);
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216
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217 sqlQuery.setInteger("wst_id", wst_id);
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218
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219 List<Object []> qRanges = sqlQuery.list();
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220
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221 int start = -1;
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222 int Q = qRanges.size();
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223 Integer lastColumn = null;
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parents: 632
diff changeset
224
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parents: 632
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225 for (int i = 0; i < Q; ++i) {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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226 Object [] qRange = qRanges.get(i);
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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227 Integer columnId = (Integer)qRange[0];
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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228 if (lastColumn == null) {
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parents: 632
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229 lastColumn = columnId;
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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230 start = i;
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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231 }
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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232 else if (!lastColumn.equals(columnId)) {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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233 QRangeTree qRangeTree = new QRangeTree(qRanges, start, i);
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
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234 columns[lastColumn].setQRangeTree(qRangeTree);
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
diff changeset
235 lastColumn = columnId;
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
236 start = i;
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
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237 }
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
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238 }
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
239
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
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240 if (start != -1) {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
diff changeset
241 QRangeTree qRangeTree = new QRangeTree(qRanges, start, Q);
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
diff changeset
242 columns[lastColumn].setQRangeTree(qRangeTree);
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parents: 632
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243 }
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
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244
742
c09c9e05ecfa Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 633
diff changeset
245 /* This is debug code to visualize the q ranges trees
633
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
diff changeset
246
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
247 java.io.PrintWriter out = null;
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parents: 632
diff changeset
248 try {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
249 out = new java.io.PrintWriter(
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
250 new java.io.FileWriter(
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
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251 "/tmp/qranges" + System.currentTimeMillis() + ".dot"));
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
252
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
253 out.println("graph \"Q ranges trees\" {");
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
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parents: 632
diff changeset
254
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
255 for (int i = 0; i < columns.length; ++i) {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
256 QRangeTree tree = columns[i].getQRangeTree();
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
257 out.println(tree.toGraph());
443
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
258 }
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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259
633
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
260 out.println("}");
443
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
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parents:
diff changeset
261
633
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
262 out.flush();
443
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
263 }
633
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
264 catch (java.io.IOException ioe) {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
265 log.error(ioe);
443
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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266 }
633
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
267 finally {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
268 if (out != null) {
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
269 out.close();
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
270 }
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
271 }
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
272 */
1839
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
273
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
274 }
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
275
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
276 protected static void loadQRanges(
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
277 Session session,
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
278 WstValueTable.Column [] columns,
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
279 Wst wst
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
280 ) {
c3b44da22a3a Minor refactoring in preparation of generation of interpolators (WstValueTable) for static WQKms.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1780
diff changeset
281 loadQRanges(session, columns, wst.getId());
633
d08f77e7f7e8 WST value table: Qs are now stored in ranges for each column.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 632
diff changeset
282 }
443
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
283
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
284 }
5d65fe4c08d5 Separated the WST table loading logic from the calculations.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
285 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org