Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/FlowVelocityMeasurementFactory.java @ 6945:735346b3e438

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Let hibernate do the parsing/casting.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 29 Aug 2013 16:37:53 +0200
parents 602dac32a996
children e4606eae8ea5
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
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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.artifacts.model.minfo;
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10
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11 import java.util.Date;
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12 import java.util.List;
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13
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14 import org.apache.log4j.Logger;
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15 import org.hibernate.SQLQuery;
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16 import org.hibernate.Session;
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17
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18 import org.hibernate.type.StandardBasicTypes;
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19
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20 import org.dive4elements.river.model.FlowVelocityMeasurementValue;
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21 import org.dive4elements.river.backend.SessionHolder;
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22
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23
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24 public class FlowVelocityMeasurementFactory
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25 {
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26 /** Private logger to use here. */
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27 private static Logger log = Logger.getLogger(FlowVelocityMeasurementFactory.class);
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28
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29 /** Query to get description and start year, given name and a km range. */
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30 public static final String SQL_SELECT_ONE =
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31 "SELECT station, datetime, w, q, v, description " +
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32 " FROM flow_velocity_measure_values" +
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33 " WHERE id = :id";
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34
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35
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36 private FlowVelocityMeasurementFactory() {
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37 }
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38
3395f8c6b030 FlowVelocityMeasurementFactory: New, do the query to fetch measured flow velocities.
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39
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40 public static FlowVelocityMeasurementValue.FastFlowVelocityMeasurementValue
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41 getFlowVelocityMeasurement(int id)
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42 {
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43 log.debug("FlowVelocityMeasurementFactory.getFlowVelocityMeasurementValue");
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44 Session session = SessionHolder.HOLDER.get();
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45 SQLQuery sqlQuery = null;
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46 sqlQuery = session.createSQLQuery(SQL_SELECT_ONE)
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47 .addScalar("station", StandardBasicTypes.DOUBLE)
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48 .addScalar("datetime", StandardBasicTypes.DATE)
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49 .addScalar("w", StandardBasicTypes.DOUBLE)
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50 .addScalar("q", StandardBasicTypes.DOUBLE)
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51 .addScalar("v", StandardBasicTypes.DOUBLE)
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52 .addScalar("description", StandardBasicTypes.STRING);
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53 sqlQuery.setParameter("id", id);
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54
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55 List<Object []> results = sqlQuery.list();
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56 if (results.size() > 0) {
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57 Object[] row = results.get(0);
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58 if (row == null || row.length < 6) {
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59 return null;
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60 }
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61 return FlowVelocityMeasurementValue.getUnmapped(
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62 (Double) row[0],
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63 (Double) row[2],
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64 (Double) row[3],
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65 (Double) row[4],
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66 (Date) row[1],
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67 (String) row[5]);
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68 }
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69 return null;
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70 }
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71 }
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72 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org