Mercurial > dive4elements > river
changeset 151:4eddbb219866
Add factory to fetch gauges from database and filter them
for their ranges. XXX: Coded inefficent.
flys-artifacts/trunk@1581 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Mon, 28 Mar 2011 09:17:25 +0000 |
| parents | c904d52cdfd0 |
| children | 956445dd601d |
| files | flys-artifacts/ChangeLog flys-artifacts/pom.xml flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/GaugesFactory.java |
| diffstat | 3 files changed, 76 insertions(+), 0 deletions(-) [+] |
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--- a/flys-artifacts/ChangeLog Fri Mar 25 13:51:09 2011 +0000 +++ b/flys-artifacts/ChangeLog Mon Mar 28 09:17:25 2011 +0000 @@ -1,3 +1,9 @@ +2011-03-28 Sascha L. Teichmann <sascha.teichmann@intevation.de> + + * src/main/java/de/intevation/flys/artifacts/model/GaugesFactory.java: + New. Load gauges for a river and filter them for given + ranges. + 2011-03-25 Sascha L. Teichmann <sascha.teichmann@intevation.de> * src/main/java/de/intevation/flys/artifacts/model/DischargeTables.java:
--- a/flys-artifacts/pom.xml Fri Mar 25 13:51:09 2011 +0000 +++ b/flys-artifacts/pom.xml Mon Mar 28 09:17:25 2011 +0000 @@ -30,6 +30,11 @@ <dependencies> <dependency> + <groupId>jfree</groupId> + <artifactId>jfreechart</artifactId> + <version>1.0.13</version> + </dependency> + <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version>
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/GaugesFactory.java Mon Mar 28 09:17:25 2011 +0000 @@ -0,0 +1,65 @@ +package de.intevation.flys.artifacts.model; + +import java.util.List; +import java.util.ArrayList; + +import de.intevation.flys.backend.SessionFactoryProvider; + +import de.intevation.flys.model.River; +import de.intevation.flys.model.Gauge; +import de.intevation.flys.model.Range; + +import org.hibernate.SessionFactory; +import org.hibernate.Session; +import org.hibernate.Query; + +public class GaugesFactory +{ + public static List<Gauge> getGauges(River river) { + return getGauges(river.getName()); + } + + public static List<Gauge> getGauges(String river) { + SessionFactory sf = SessionFactoryProvider.getSessionFactory(); + Session session = sf.openSession(); + try { + Query query = session.createQuery( + "from Gauge where river.name=:name"); + query.setParameter("name", river); + return query.list(); + } + finally { + session.close(); + } + } + + public static List<Gauge> filterRanges( + List<Gauge> gauges, + List<double []> ranges + ) { + // XXX: Inefficent! + ArrayList<Range> rs = new ArrayList<Range>(); + for (double [] range: ranges) { + double a = range[0]; + double b = range[1]; + rs.add(new Range(Math.min(a, b), Math.max(a, b), null)); + } + return filter(gauges, rs); + } + + public static List<Gauge> filter(List<Gauge> gauges, List<Range> ranges) { + // TODO: Make it an HQL filter! + ArrayList<Gauge> out = new ArrayList<Gauge>(); + for (Gauge gauge: gauges) { + Range range = gauge.getRange(); + for (Range cmp: ranges) { + if (range.intersects(cmp)) { + out.add(gauge); + break; + } + } + } + return out; + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :