Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/DischargeTables.java @ 146:e8dfe6ba2000
Fetch w/q values of discharge tables for given gauges.
flys-artifacts/trunk@1562 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Thu, 24 Mar 2011 17:29:08 +0000 |
| parents | |
| children | c904d52cdfd0 |
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| 145:d9e4b7e8905a | 146:e8dfe6ba2000 |
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| 1 package de.intevation.flys.artifacts.model; | |
| 2 | |
| 3 import java.util.List; | |
| 4 import java.util.Map; | |
| 5 import java.util.HashMap; | |
| 6 import java.util.Arrays; | |
| 7 | |
| 8 import java.io.Serializable; | |
| 9 | |
| 10 import org.hibernate.SessionFactory; | |
| 11 import org.hibernate.Session; | |
| 12 import org.hibernate.Query; | |
| 13 | |
| 14 import org.apache.log4j.Logger; | |
| 15 | |
| 16 import de.intevation.flys.backend.SessionFactoryProvider; | |
| 17 | |
| 18 import de.intevation.flys.model.Gauge; | |
| 19 import de.intevation.flys.model.DischargeTable; | |
| 20 import de.intevation.flys.model.DischargeTableValue; | |
| 21 | |
| 22 public class DischargeTables | |
| 23 implements Serializable | |
| 24 { | |
| 25 private static Logger log = Logger.getLogger(DischargeTables.class); | |
| 26 | |
| 27 protected List<String> gaugeNames; | |
| 28 | |
| 29 protected String riverName; | |
| 30 | |
| 31 protected Map<String, double []> values; | |
| 32 | |
| 33 public DischargeTables() { | |
| 34 } | |
| 35 | |
| 36 public DischargeTables(String riverName, String [] gaugeNames) { | |
| 37 this(riverName, Arrays.asList(gaugeNames)); | |
| 38 } | |
| 39 | |
| 40 public DischargeTables(String riverName, List<String> gaugeNames) { | |
| 41 this.riverName = riverName; | |
| 42 this.gaugeNames = gaugeNames; | |
| 43 } | |
| 44 | |
| 45 public Map<String, double []> getValues() { | |
| 46 if (values == null) { | |
| 47 values = loadValues(); | |
| 48 } | |
| 49 return values; | |
| 50 } | |
| 51 | |
| 52 protected Map<String, double []> loadValues() { | |
| 53 Map<String, double []> values = new HashMap<String, double []>(); | |
| 54 | |
| 55 SessionFactory sf = SessionFactoryProvider.getSessionFactory(); | |
| 56 Session session = sf.openSession(); | |
| 57 | |
| 58 try { | |
| 59 Query gaugeQuery = session.createQuery( | |
| 60 "from Gauge where name=:gauge and river.name=:river"); | |
| 61 gaugeQuery.setParameter("river", riverName); | |
| 62 | |
| 63 for (String gaugeName: gaugeNames) { | |
| 64 gaugeQuery.setParameter("gauge", gaugeName); | |
| 65 List<Gauge> gauges = gaugeQuery.list(); | |
| 66 if (gauges.isEmpty()) { | |
| 67 log.warn( | |
| 68 "no gauge '"+gaugeName+"' at river '"+riverName+"'"); | |
| 69 continue; | |
| 70 } | |
| 71 Gauge gauge = gauges.get(0); | |
| 72 | |
| 73 List<DischargeTable> tables = gauge.getDischargeTables(); | |
| 74 | |
| 75 if (tables.isEmpty()) { | |
| 76 log.warn( | |
| 77 "no discharge table for gauge '" + gaugeName + "'"); | |
| 78 continue; | |
| 79 } | |
| 80 | |
| 81 // TODO: Filter by time interval | |
| 82 DischargeTable table = tables.get(0); | |
| 83 | |
| 84 List<DischargeTableValue> dtvs = | |
| 85 table.getDischargeTableValues(); | |
| 86 | |
| 87 double [] vs = new double[dtvs.size() << 1]; | |
| 88 | |
| 89 int idx = 0; | |
| 90 for (DischargeTableValue dtv: dtvs) { | |
| 91 vs[idx++] = dtv.getW().doubleValue(); | |
| 92 vs[idx++] = dtv.getQ().doubleValue(); | |
| 93 } | |
| 94 | |
| 95 values.put(gaugeName, vs); | |
| 96 } | |
| 97 | |
| 98 return values; | |
| 99 } | |
| 100 finally { | |
| 101 session.close(); | |
| 102 } | |
| 103 } | |
| 104 } | |
| 105 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |