Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedHeightFactory.java @ 3886:633fbb61a0cc
Split bed heights into bed height epochs and single bed heights.
flys-artifacts/trunk@5536 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Raimund Renkert <raimund.renkert@intevation.de> |
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date | Thu, 20 Sep 2012 09:31:18 +0000 |
parents | 68beaa827751 |
children | bce2dd4310a6 |
rev | line source |
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1 package de.intevation.flys.artifacts.model.minfo; |
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2 |
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3 |
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4 import java.util.Date; |
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5 import java.util.List; |
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6 |
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7 import net.sf.ehcache.Cache; |
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8 import net.sf.ehcache.Element; |
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9 |
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10 import org.apache.log4j.Logger; |
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11 import org.hibernate.SQLQuery; |
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12 import org.hibernate.Session; |
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13 import org.hibernate.type.StandardBasicTypes; |
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14 |
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15 import de.intevation.flys.artifacts.cache.CacheFactory; |
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16 import de.intevation.flys.artifacts.model.StaticBedHeightCacheKey; |
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17 import de.intevation.flys.backend.SessionHolder; |
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18 |
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19 public class BedHeightFactory { |
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20 /** Private logger to use here. */ |
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21 private static Logger log = Logger.getLogger(BedHeightFactory.class); |
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22 |
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23 /** Query to get km and ws for wst_id and column_pos. */ |
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24 public static final String SQL_SELECT_SINGLE = |
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25 "SELECT height, station, data_gap, sounding_width, year " + |
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26 " FROM bed_height_single_values " + |
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27 " WHERE id = :height_id"; |
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28 |
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29 /** Query to get name for wst_id and column_pos. */ |
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30 public static final String SQL_SELECT_EPOCH = |
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31 "SELECT b.height, b.station, ti.start_time, ti.stop_time" + |
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32 " FROM bed_height_epoch_values b" + |
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33 " JOIN time_interval ti ON b.time_interval_id = ti.id" + |
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34 " WHERE id = :height_id"; |
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35 |
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36 /** Query to get name (description) for wst_id. */ |
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37 public static final String SQL_SELECT_DESCR_SINGLE = |
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38 "SELECT description FROM bed_height_single "+ |
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39 "WHERE id = :height_id"; |
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40 |
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41 /** Query to get name (description) for wst_id. */ |
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42 public static final String SQL_SELECT_DESCR_EPOCH = |
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43 "SELECT description from bed_height_epoch "+ |
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44 "WHERE id = :height_id"; |
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45 |
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46 |
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47 private BedHeightFactory() { |
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48 } |
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49 |
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50 |
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51 /** |
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52 * Get WKms for given column and wst_id, caring about the cache. |
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53 */ |
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54 public static BedHeight getHeight(String type, int height_id, int time) { |
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55 log.debug("BedHeightFactory.getHeight"); |
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56 Cache cache = CacheFactory.getCache(StaticBedHeightCacheKey.CACHE_NAME); |
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57 |
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58 StaticBedHeightCacheKey cacheKey; |
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59 |
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60 if (cache != null) { |
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61 cacheKey = new StaticBedHeightCacheKey(height_id, time); |
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62 Element element = cache.get(cacheKey); |
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63 if (element != null) { |
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64 log.debug("Got static bedheight values from cache"); |
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65 return (BedHeight)element.getValue(); |
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66 } |
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67 } |
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68 else { |
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69 cacheKey = null; |
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70 } |
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71 |
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72 BedHeight values = getBedHeightUncached(type, height_id, time); |
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73 |
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74 if (values != null && cacheKey != null) { |
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75 log.debug("Store static bed height values in cache."); |
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76 Element element = new Element(cacheKey, values); |
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77 cache.put(element); |
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78 } |
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79 return values; |
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80 } |
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81 |
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82 /** Get name for a WKms. */ |
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83 public static String getHeightName(String type, int height_id) { |
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84 log.debug("BedHeightFactory.getHeightName height_id/" + height_id); |
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85 |
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86 String name = null; |
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87 Session session = SessionHolder.HOLDER.get(); |
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88 |
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89 SQLQuery nameQuery = null; |
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90 if (type.equals("single")) { |
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91 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_SINGLE) |
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92 .addScalar("description", StandardBasicTypes.STRING); |
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93 nameQuery.setInteger("height_id", height_id); |
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94 } |
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95 else if (type.equals("epoch")) { |
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96 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_EPOCH) |
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97 .addScalar("description", StandardBasicTypes.STRING); |
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98 nameQuery.setInteger("height_id", height_id); |
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99 } |
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100 else { |
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101 return "none"; |
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102 } |
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103 List<String> names = nameQuery.list(); |
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104 if (names.size() >= 1) { |
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105 name = names.get(0); |
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106 } |
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107 |
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108 return name; |
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109 } |
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110 |
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111 |
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112 /** |
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113 * Get WKms from db. |
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114 * @param column the position columns value |
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115 * @param wst_id database id of the wst |
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116 * @return according WKms. |
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117 */ |
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118 public static BedHeight getBedHeightUncached( |
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119 String type, |
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120 int height_id, |
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121 int time) |
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122 { |
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123 if (log.isDebugEnabled()) { |
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124 log.debug("BedHeightFactory.getBedHeightUncached"); |
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125 } |
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126 |
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127 Session session = SessionHolder.HOLDER.get(); |
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128 SQLQuery sqlQuery = null; |
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129 if (type.equals("single")) { |
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130 BedHeightSingle height = |
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131 new BedHeightSingle(getHeightName(type, height_id)); |
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132 sqlQuery = session.createSQLQuery(SQL_SELECT_SINGLE) |
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133 .addScalar("height", StandardBasicTypes.DOUBLE) |
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134 .addScalar("station", StandardBasicTypes.DOUBLE) |
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135 .addScalar("data_gap", StandardBasicTypes.DOUBLE) |
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136 .addScalar("sounding_width", StandardBasicTypes.DOUBLE) |
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137 .addScalar("year", StandardBasicTypes.INTEGER); |
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138 sqlQuery.setInteger("height_id", height_id); |
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139 List<Object []> results = sqlQuery.list(); |
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140 |
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141 for (int i = 0; i <= results.size(); i++) { |
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142 Object[] row = results.get(i); |
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143 height.add( |
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144 (Double) row[0], |
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145 (Double) row[1], |
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146 (Double) row[2], |
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147 (Double) row[3], |
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148 (Integer) row[4]); |
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149 } |
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150 return height; |
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151 } |
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152 else if (type.equals("epoch")) { |
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153 BedHeightEpoch height = |
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154 new BedHeightEpoch(getHeightName(type, height_id)); |
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155 sqlQuery = session.createSQLQuery(SQL_SELECT_EPOCH) |
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156 .addScalar("height", StandardBasicTypes.DOUBLE) |
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157 .addScalar("station", StandardBasicTypes.DOUBLE) |
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158 .addScalar("start_time", StandardBasicTypes.DATE) |
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159 .addScalar("stop_time", StandardBasicTypes.DATE); |
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160 sqlQuery.setInteger("height_id", height_id); |
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161 List<Object []> results = sqlQuery.list(); |
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162 |
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163 for (int i = 0; i <= results.size(); i++) { |
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164 Object[] row = results.get(i); |
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165 height.add( |
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166 (Double) row[0], |
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167 (Double) row[1], |
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168 0, |
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169 0, |
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170 (Date) row[2], |
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171 (Date)row[3]); |
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172 } |
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173 return height; |
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174 } |
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175 return new BedHeight(); |
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176 } |
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177 } |
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178 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |