Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/statistics/HorizontalProfileStatistics.java @ 1129:ccfa07b88476

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merged geo-backend
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:01 +0200
parents f953c9a559d8
children
rev   line source
1115
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.gnv.statistics;
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11 import java.sql.SQLException;
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12 import java.util.Collection;
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13
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14 import org.apache.log4j.Logger;
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15
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16 import com.vividsolutions.jts.geom.Point;
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17 import com.vividsolutions.jts.io.ParseException;
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18 import com.vividsolutions.jts.io.WKTReader;
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19
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20 import de.intevation.gnv.geobackend.base.Result;
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21 import de.intevation.gnv.state.describedata.KeyValueDescibeData;
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22 import de.intevation.gnv.utils.DistanceCalculator;
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23
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24 /**
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25 * This class is used to create a statistic for 'Horizontalprofil' products.
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26 *
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27 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
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28 *
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29 */
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30 public class HorizontalProfileStatistics extends TimeseriesStatistics {
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31
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32 private static Logger log = Logger.getLogger(HorizontalProfileStatistics.class);
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33
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34 private WKTReader wktReader = new WKTReader();
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35
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36 private DistanceCalculator dc = new DistanceCalculator();
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37
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38 private double distance = 0;
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39
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40 /**
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41 * Constructor
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42 */
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43 public HorizontalProfileStatistics() {
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44 super();
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45 }
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46
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47
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48 @Override
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49 protected double calculateXOrdinateValue(Result previousRow,Result row)
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50 throws SQLException {
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51 try {
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52 Point start = (Point)this.wktReader.read(previousRow.getString("SHAPE"));
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53 Point current = (Point)this.wktReader.read(row.getString("SHAPE"));
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54 double delta = DistanceCalculator.calculateDistance(start, current);
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55
255
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56 if (!Double.isNaN(delta)){
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57 this.distance = this.distance + delta;
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58 }
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59 } catch (ParseException e) {
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60 log.error(e,e);
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61 }
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62 return this.distance;
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63 }
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64
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65
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66 @Override
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67 protected String generateStatisticsName(
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68 String break1,
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69 String break2,
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70 String break3,
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71 Collection<KeyValueDescibeData> parameters,
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72 Collection<KeyValueDescibeData> measurements,
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73 Collection<KeyValueDescibeData> dates) {
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74 return (this.findValueTitle(parameters, break1)+ " "+
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75 this.findValueTitle(measurements,break2)).trim()+" "+
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76 this.findValueTitle(dates,break3);
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77 }
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80 @Override
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81 protected void clearStatistics() {
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82 log.debug("HorizontalProfileStatistics.clearStatistics");
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83 super.clearStatistics();
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84 this.distance = 0;
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85 }
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87 }
http://dive4elements.wald.intevation.org