Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/sq/MeasurementFactory.java @ 3292:e06036fdf0c7

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SQ relation: add left joins to GSIEBSATZ and SSIEBUNG flys-artifacts/trunk@4960 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 12 Jul 2012 22:01:52 +0000
parents b52c4b34ec1b
children 5ccd51ca11ce
rev   line source
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1 package de.intevation.flys.artifacts.model.sq;
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2
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3 import de.intevation.flys.artifacts.model.DateRange;
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4
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5 import de.intevation.flys.backend.SedDBSessionHolder;
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6
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7 import java.util.HashMap;
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8 import java.util.Map;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import org.hibernate.SQLQuery;
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13 import org.hibernate.Session;
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14
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15 import org.hibernate.transform.BasicTransformerAdapter;
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16
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17 import org.hibernate.type.StandardBasicTypes;
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18
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19 public class MeasurementFactory
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20 {
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21 private static final Logger log =
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22 Logger.getLogger(MeasurementFactory.class);
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23
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24 public static final String [] GSIEBSATZ = {
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25 "SIEB01", "SIEB02", "SIEB03", "SIEB04",
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26 "SIEB05", "SIEB06", "SIEB07", "SIEB08",
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27 "SIEB09", "SIEB10", "SIEB11", "SIEB13",
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28 "SIEB13", "SIEB14", "SIEB15", "SIEB16",
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29 "SIEB17", "SIEB18", "SIEB19", "SIEB20",
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30 "SIEB21"
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31 };
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32
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33 public static final String [] SSIEBUNG = {
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34 "RSIEB01", "RSIEB02", "RSIEB03", "RSIEB04",
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35 "RSIEB05", "RSIEB06", "RSIEB07", "RSIEB08",
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36 "RSIEB09", "RSIEB10", "RSIEB11", "RSIEB13",
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37 "RSIEB13", "RSIEB14", "RSIEB15", "RSIEB16",
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38 "RSIEB17", "RSIEB18", "RSIEB19", "RSIEB20",
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39 "RSIEB21", "REST"
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40 };
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41
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42 public static final String SQL_MEASSURE =
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43 "SELECT " +
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44 "m.TSAND AS TSAND," +
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45 "m.TSCHWEB AS TSCHWEB," +
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46 "m.CSCHWEB AS CSCHWEB," +
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47 "m.Q AS Q," +
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48 "%GSIEBSATZ%" +
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49 "%SSIEBUNG%" +
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50 "FROM messung m " +
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51 "JOIN station s ON m.stationid = s.stationid " +
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52 "JOIN gewaesser g ON s.gewaesserid = g.gewaesserid " +
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53 "LEFT JOIN GSIEBSATZ gs ON m.gsiebsatzid = gs.gewaesserid " +
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54 "LEFT JOIN SSIEBUNG ss ON gs.gsiebsatzid = ss.gewaesserid " +
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55 "WHERE " +
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56 "g.name = :river_name AND " +
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57 "s.km BETWEEN :location - 0.001 AND :location + 0.001 AND " +
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58 "m.datum BETWEEN :from AND :to AND " +
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59 "m.Q IS NOT NULL"
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60 .replace("%GSIEBSATZ%", projection("gs", GSIEBSATZ))
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61 .replace("%SSIEBUNG%", projection("ss", SSIEBUNG));
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62
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63 private static final String projection(
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64 String prefix,
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65 String [] columnNames
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66 ) {
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67 StringBuilder sb = new StringBuilder();
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68 for (String columnName: columnNames) {
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69 sb.append(prefix)
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70 .append('.')
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71 .append(columnName)
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72 .append(" AS ")
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73 .append(columnName)
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74 .append(',');
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75 }
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76 return sb.toString();
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77 }
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78
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79 public static final class MeasurementResultTransformer
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80 extends BasicTransformerAdapter
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81 {
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82 public static MeasurementResultTransformer INSTANCE =
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83 new MeasurementResultTransformer();
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84
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85 public MeasurementResultTransformer() {
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86 }
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87
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88 @Override
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89 public Object transformTuple(Object [] tuple, String [] aliases) {
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90 Map<String, Object> map = new HashMap<String, Object>();
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91 for (int i = 0; i < tuple.length; ++i) {
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92 if (tuple[i] != null) {
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93 map.put(aliases[i], tuple[i]);
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94 }
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95 }
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96 return new Measurement(map);
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97 }
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98 } // class BasicTransformerAdapter
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99
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100 private MeasurementFactory() {
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101 }
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102
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103 protected static Measurements load(
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104 Session session,
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105 String river,
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106 double location,
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107 DateRange dateRange
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108 ) {
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109 SQLQuery query = session.createSQLQuery(SQL_MEASSURE)
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110 .addScalar("TSAND", StandardBasicTypes.DOUBLE)
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111 .addScalar("TSCHWEB", StandardBasicTypes.DOUBLE)
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112 .addScalar("CSCHWEB", StandardBasicTypes.DOUBLE)
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113 .addScalar("Q", StandardBasicTypes.DOUBLE);
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114
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115 for (String siebsatz: GSIEBSATZ) {
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116 query.addScalar(siebsatz, StandardBasicTypes.DOUBLE);
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117 }
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118
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119 for (String siebung: SSIEBUNG) {
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120 query.addScalar(siebung, StandardBasicTypes.DOUBLE);
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121 }
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122
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123 query.setString("river_name", river);
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124 query.setDouble("location", location);
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125 query.setDate("from", dateRange.getFrom());
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126 query.setDate("to", dateRange.getTo());
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127
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128 query.setResultTransformer(MeasurementResultTransformer.INSTANCE);
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129
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130 return new Measurements(query.list());
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131 }
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132
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133 public static Measurements getMeasurements(
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134 String river,
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135 double location,
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136 DateRange dateRange
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137 ) {
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138 Session session = SedDBSessionHolder.HOLDER.get();
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139 try {
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140 return load(session, river, location, dateRange);
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141 }
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142 finally {
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143 session.close();
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144 }
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145 }
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146 }
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147 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org