Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/GaugeTimerangeState.java @ 2191:f28844a57fed
Added states (work is not finished yet) for the 'historical discharge curve' calculation.
flys-artifacts/trunk@3801 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Fri, 27 Jan 2012 13:26:04 +0000 |
| parents | |
| children | 2966787b5188 |
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| 2190:2792d2617be9 | 2191:f28844a57fed |
|---|---|
| 1 package de.intevation.flys.artifacts.states; | |
| 2 | |
| 3 import java.util.Calendar; | |
| 4 import java.util.List; | |
| 5 | |
| 6 import org.apache.log4j.Logger; | |
| 7 | |
| 8 import org.hibernate.Session; | |
| 9 import org.hibernate.SQLQuery; | |
| 10 import org.hibernate.type.StandardBasicTypes; | |
| 11 | |
| 12 import de.intevation.flys.model.Gauge; | |
| 13 import de.intevation.flys.backend.SessionHolder; | |
| 14 | |
| 15 import de.intevation.flys.artifacts.FLYSArtifact; | |
| 16 import de.intevation.flys.utils.FLYSUtils; | |
| 17 | |
| 18 | |
| 19 /** | |
| 20 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 21 */ | |
| 22 public class GaugeTimerangeState extends IntRangeState { | |
| 23 | |
| 24 private static final Logger logger = | |
| 25 Logger.getLogger(GaugeTimerangeState.class); | |
| 26 | |
| 27 | |
| 28 protected int[] getLowerUpper(FLYSArtifact flys) { | |
| 29 Gauge gauge = FLYSUtils.getReferenceGauge(flys); | |
| 30 | |
| 31 if (gauge == null) { | |
| 32 logger.warn("No reference gauge specified!"); | |
| 33 return new int[] { 0, 0 }; | |
| 34 } | |
| 35 | |
| 36 Session session = SessionHolder.HOLDER.get(); | |
| 37 | |
| 38 SQLQuery query = session.createSQLQuery( | |
| 39 "SELECT min(start_time) as min, max(stop_time) as max " + | |
| 40 "FROM time_intervals WHERE id in " + | |
| 41 "(SELECT time_interval_id FROM discharge_tables " + | |
| 42 "WHERE gauge_id =:gid)"); | |
| 43 | |
| 44 query.addScalar("min", StandardBasicTypes.CALENDAR); | |
| 45 query.addScalar("max", StandardBasicTypes.CALENDAR); | |
| 46 | |
| 47 query.setInteger("gid", gauge.getId()); | |
| 48 | |
| 49 List results = query.list(); | |
| 50 | |
| 51 if (results != null) { | |
| 52 Object[] res = (Object[]) results.get(0); | |
| 53 | |
| 54 Calendar lo = (Calendar) res[0]; | |
| 55 Calendar up = (Calendar) res[1]; | |
| 56 | |
| 57 return new int[] { lo.get(Calendar.YEAR), up.get(Calendar.YEAR) }; | |
| 58 } | |
| 59 | |
| 60 logger.warn("Could not determine time range for gauge: " + gauge); | |
| 61 | |
| 62 return null; | |
| 63 } | |
| 64 | |
| 65 | |
| 66 @Override | |
| 67 protected Object getLower(FLYSArtifact flys) { | |
| 68 int[] lowerUpper = getLowerUpper(flys); | |
| 69 | |
| 70 return lowerUpper != null ? lowerUpper[0] : 0; | |
| 71 } | |
| 72 | |
| 73 | |
| 74 @Override | |
| 75 protected Object getUpper(FLYSArtifact flys) { | |
| 76 int[] lowerUpper = getLowerUpper(flys); | |
| 77 | |
| 78 return lowerUpper != null ? lowerUpper[1] : 0; | |
| 79 } | |
| 80 } | |
| 81 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |