Mercurial > dive4elements > river
annotate backend/src/main/java/org/dive4elements/river/importer/ImportUnit.java @ 8046:8c14588d1f78
ImporterSession: Load measurement stations via ranges which hold a reference to the river.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 17 Jul 2014 10:56:38 +0200 |
parents | 4c3ccf2b0304 |
children | 5e38e2924c07 |
rev | line source |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.importer; |
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10 |
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11 import java.util.List; |
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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 import org.hibernate.Session; |
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16 import org.hibernate.Query; |
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17 |
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18 import org.dive4elements.river.model.Unit; |
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19 |
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20 |
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21 public class ImportUnit |
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22 { |
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23 private static final Logger log = Logger.getLogger(ImportUnit.class); |
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24 |
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25 protected String name; |
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26 |
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27 protected Unit peer; |
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28 |
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29 |
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30 public ImportUnit(String name) { |
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31 this.name = name; |
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32 } |
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33 |
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34 |
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35 public String getName() { |
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36 return name; |
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37 } |
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38 |
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39 |
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40 public Unit getPeer() { |
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41 if (peer == null) { |
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42 Session session = ImporterSession.getInstance().getDatabaseSession(); |
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43 Query query = session.createQuery("from Unit where name=:name"); |
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44 query.setParameter("name", name); |
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45 |
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46 List<Unit> units = query.list(); |
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47 if (units.isEmpty()) { |
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48 log.info("Store new unit '" + name + "'"); |
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49 |
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50 peer = new Unit(name); |
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51 session.save(peer); |
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52 } |
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53 else { |
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54 peer = units.get(0); |
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55 } |
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56 } |
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57 return peer; |
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58 } |
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59 } |
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60 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |