Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/GaugeFinderFactory.java @ 4282:8b4988815974
Added marker for Ws and Qs in Historical Discharge WQ charts.
Therefore, the XYChartGenerator got two new methods addDomainMarker(Marker, boolean) and addValueMarker(Marker, boolean).
The boolean parameters determine, if the marker should be visible or not. This is analogous to addAxisSeries(XYSeries, int, boolean).
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Mon, 29 Oct 2012 05:59:27 +0100 |
parents | c44ff50f4970 |
children | 61f4d4164a30 |
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package de.intevation.flys.artifacts.model; import de.intevation.flys.artifacts.cache.CacheFactory; import de.intevation.flys.backend.SessionHolder; import de.intevation.flys.model.River; import java.util.ArrayList; import java.util.List; import net.sf.ehcache.Cache; import net.sf.ehcache.Element; import org.apache.log4j.Logger; import org.hibernate.SQLQuery; import org.hibernate.Session; import org.hibernate.type.StandardBasicTypes; public class GaugeFinderFactory { private static Logger log = Logger.getLogger(GaugeFinderFactory.class); public static final String CACHE_NAME = "gauge-finders"; public static final String SQL_GAUGES = "SELECT" + " g.id AS gauge_id," + " g.name AS name," + " r.a AS a," + " r.b AS b " + "FROM gauges g" + " JOIN ranges r ON g.range_id = r.id " + "WHERE" + " g.river_id = :river_id " + "ORDER BY r.a"; private static GaugeFinderFactory INSTANCE; protected GaugeFinderFactory() { } public static synchronized GaugeFinderFactory getInstance() { if (INSTANCE == null) { INSTANCE = new GaugeFinderFactory(); } return INSTANCE; } public GaugeFinder getGaugeFinder(String riverName) { River river = RiverFactory.getRiver(riverName); return river != null ? getGaugeFinder(river.getId(), river.getKmUp()) : null; } public synchronized GaugeFinder getGaugeFinder( int riverId, boolean isKmUp ) { Cache cache = CacheFactory.getCache(CACHE_NAME); if (cache == null) { return getUncached(riverId, isKmUp); } String cacheKey = riverId + "-" + isKmUp; Element element = cache.get(cacheKey); if (element != null) { return (GaugeFinder)element.getValue(); } GaugeFinder finder = getUncached(riverId, isKmUp); if (finder != null) { cache.put(new Element(cacheKey, finder)); } return finder; } protected GaugeFinder loadGauges( Session session, int riverId, boolean isKmUp ) { SQLQuery query = session.createSQLQuery(SQL_GAUGES) .addScalar("gauge_id", StandardBasicTypes.INTEGER) .addScalar("name", StandardBasicTypes.STRING) .addScalar("a", StandardBasicTypes.DOUBLE) .addScalar("b", StandardBasicTypes.DOUBLE); query.setInteger("river_id", riverId); List<Object []> list = query.list(); if (list.isEmpty()) { log.warn("River " + riverId + " has no gauges."); return null; } List<GaugeRange> gauges = new ArrayList<GaugeRange>(); for (Object [] row: list) { int gaugeId = (Integer)row[0]; String name = (String) row[1]; double start = (Double) row[2]; double end = (Double) row[3]; GaugeRange gauge = new GaugeRange(start, end, name, gaugeId); gauges.add(gauge); } return new GaugeFinder(gauges, isKmUp); } protected GaugeFinder getUncached(int riverId, boolean isKmUp) { Session session = SessionHolder.HOLDER.get(); GaugeFinder finder = loadGauges(session, riverId, isKmUp); if (finder == null || !finder.loadDischargeSectors(session, riverId)) { return null; } return finder; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :