Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/common/AbstractSeriesImport.java @ 8971:50416a0df385

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Importer for the Schifffahrt (S-INFO) and Oekologie (U-INFO) files
author mschaefer
date Tue, 03 Apr 2018 10:18:30 +0200
parents
children ae76f618d990
rev   line source
8971
50416a0df385 Importer for the Schifffahrt (S-INFO) and Oekologie (U-INFO) files
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1 /* Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10
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11 package org.dive4elements.river.importer.common;
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12
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13 import java.util.ArrayList;
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14 import java.util.EnumMap;
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15 import java.util.List;
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16 import java.util.Map;
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17
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18 import org.apache.log4j.Logger;
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19 import org.dive4elements.river.importer.ImporterSession;
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20 import org.dive4elements.river.model.River;
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21 import org.hibernate.Session;
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22
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23 /**
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24 * Abstract base class of a km bound data series of a river importing from a file
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25 *
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26 * @author Matthias Schäfer
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27 *
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28 */
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29 public abstract class AbstractSeriesImport<SERIES, KMTUPLE, KMLINE extends AbstractKmLineImport<SERIES, KMTUPLE>>
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30 {
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31 /***** FIELDS *****/
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32
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33 /**
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34 * Name of the imported file without type extension
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35 */
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36 protected String filename;
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37
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38 protected String kmrange_info;
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39
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40 protected String comment;
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41
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42 protected final List<KMLINE> values;
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43
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44 protected SERIES peer;
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45
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46 protected Map<StoreMode, Integer> valueStoreCount;
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47
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48 protected StoreMode seriesStoreMode;
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49
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50
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51 /***** CONSTRUCTORS *****/
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52
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53 AbstractSeriesImport() {
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54 this.values = new ArrayList<>();
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55 this.valueStoreCount = new EnumMap<>(StoreMode.class);
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56 for (final StoreMode mode : StoreMode.values())
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57 this.valueStoreCount.put(mode, Integer.valueOf(0));
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58 }
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59
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60 public AbstractSeriesImport(final String filename) {
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61 this();
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62 setFilename(filename);
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63 }
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64
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65
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66 /***** METHODS *****/
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67
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68 /**
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69 * Gets the class's logger
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70 */
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71 public abstract Logger getLog();
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72
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73 void setFilename(final String filename) {
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74 this.filename = filename;
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75 }
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76
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77 public String getFilename() {
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78 return this.filename;
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79 }
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80
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81 public String getKmrange_info() {
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82 return this.kmrange_info;
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83 }
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84
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85 public void setKmrange_info(final String kmrange_info) {
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86 this.kmrange_info = kmrange_info;
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87 }
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88
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89 public String getComment() {
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90 return this.comment;
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91 }
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92
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93 public void setComment(final String comment) {
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94 this.comment = comment;
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95 }
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96
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97 public int getValueCount() {
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98 return this.values.size();
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99 }
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100
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101 public void addValue(final KMLINE value) {
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102 this.values.add(value);
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103 }
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104
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105 public int getValueStoreCount(final StoreMode mode) {
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106 return this.valueStoreCount.get(mode).intValue();
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107 }
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108
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109 /**
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110 * Stores the data series and their values in the database
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111 *
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112 * @param river
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113 */
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114 public StoreMode store(final River river) {
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115 logStoreInfo();
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116 for (final StoreMode mode : StoreMode.values())
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117 this.valueStoreCount.put(mode, Integer.valueOf(0));
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118 final SERIES peer = getPeer(river);
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119 if (peer != null) {
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120 for (final KMLINE value : this.values) {
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121 incrementValueStoreCount(value.store(peer, this.seriesStoreMode));
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122 }
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123 }
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124 ImporterSession.getInstance().getDatabaseSession().flush();
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125 return this.seriesStoreMode;
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126 }
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127
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128 /**
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129 * Writes the store start info to the log
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130 */
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131 protected void logStoreInfo() {
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132 getLog().info("Store series '" + getFilename() + "'");
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133 }
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134
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135 private void incrementValueStoreCount(final StoreMode mode) {
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136 this.valueStoreCount.put(mode, Integer.valueOf(this.valueStoreCount.get(mode).intValue() + 1));
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137 }
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138
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139 /**
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140 * Gets the model object of the data series, inserting it into the database if not already existing
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141 */
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142 public SERIES getPeer(final River river) {
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143 if (this.peer != null) {
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144 this.seriesStoreMode = StoreMode.NONE;
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145 return this.peer;
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146 }
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147 final Session session = ImporterSession.getInstance().getDatabaseSession();
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148 final List<SERIES> rows = querySeriesItem(session, river);
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149 if (rows.isEmpty()) {
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150 getLog().info("Create new database instance");
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151 this.peer = createSeriesItem(river);
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152 session.save(this.peer);
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153 this.seriesStoreMode = StoreMode.INSERT;
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154 } else {
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155 this.peer = rows.get(0);
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156 this.seriesStoreMode = StoreMode.UPDATE;
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157 }
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158 return this.peer;
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159 }
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160
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161 /**
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162 * Queries the series item(s) from the database
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163 */
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164 public abstract List<SERIES> querySeriesItem(final Session session, final River river);
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165
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166 /**
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167 * Creates a new value item
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168 */
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169 public abstract SERIES createSeriesItem(final River river);
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170 }
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