Mercurial > dive4elements > river

annotate flys-aft/src/main/java/de/intevation/aft/Rivers.java @ 5529:52876daf97b0

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Use left join on time intervals as they can be NULL
author Tom Gottfried <tom@intevation.de>
date Tue, 02 Apr 2013 13:02:12 +0200
parents f939e1e6cfa4
children
rev   line source
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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1 package de.intevation.aft;
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2
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3 import de.intevation.db.ConnectedStatements;
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4
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5 import java.sql.ResultSet;
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6 import java.sql.SQLException;
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7
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8 import java.util.ArrayList;
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9 import java.util.HashMap;
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10 import java.util.List;
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11 import java.util.Map;
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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 public class Rivers
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16 {
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17 private static Logger log = Logger.getLogger(Rivers.class);
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18
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19 public Rivers() {
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20 }
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21
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22 public boolean sync(SyncContext context) throws SQLException {
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23
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24 log.info("sync: rivers");
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25
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26 ConnectedStatements flysStatements = context.getFlysStatements();
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27 ConnectedStatements aftStatements = context.getAftStatements();
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28
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29 Map<String, River> flysRivers = new HashMap<String, River>();
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30
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31 ResultSet flysRs = flysStatements
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32 .getStatement("select.rivers").executeQuery();
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33
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34 try {
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35 while (flysRs.next()) {
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36 int id = flysRs.getInt("id");
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37 String name = flysRs.getString("name");
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38 double from = flysRs.getDouble("min_km");
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39 double to = flysRs.getDouble("max_km");
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40 flysRivers.put(name.toLowerCase(), new River(id, name, from, to));
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41 }
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42 }
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43 finally {
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44 flysRs.close();
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45 }
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46
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47 List<River> commonRivers = new ArrayList<River>();
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48
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49 ResultSet aftRs = aftStatements
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50 .getStatement("select.gewaesser").executeQuery();
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51
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52 try {
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53 while (aftRs.next()) {
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54 String name = aftRs.getString("NAME");
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55 River river = flysRivers.get(name.toLowerCase());
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56 if (river != null) {
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57 int id2 = aftRs.getInt("GEWAESSER_NR");
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58 river.setId2(id2);
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59 commonRivers.add(river);
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60 }
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61 }
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62 }
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63 finally {
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64 aftRs.close();
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65 }
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66
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67
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68 boolean modified = false;
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69
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70 for (River river: commonRivers) {
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71 modified |= river.sync(context);
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72 }
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73
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74 return modified;
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75 }
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76 }
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77 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org