Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/map/HWSFactory.java @ 5476:f9eee1909e6e
Fix null pointer exception in ImportMeasurement Station
Range may be null
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Wed, 27 Mar 2013 17:49:46 +0100 |
parents | 029b5f5f1dcc |
children |
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package de.intevation.flys.artifacts.model.map; 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; import org.hibernatespatial.GeometryUserType; import com.vividsolutions.jts.geom.Geometry; import de.intevation.flys.artifacts.cache.CacheFactory; import de.intevation.flys.backend.SessionHolder; public class HWSFactory { /** Private logger to use here. */ private static Logger log = Logger.getLogger(HWSFactory.class); private static final int HWS_LINES = 0; private static final int HWS_POINTS = 1; public static final String SQL_SELECT_LINES = "SELECT hl.name, hl.geom, hl.id, hl.kind_id, hl.official, fs.name AS fed, hl.description " + " FROM hws_lines hl" + " JOIN rivers r ON hl.river_id = r.id" + " LEFT JOIN fed_states fs ON hl.fed_state_id = fs.id" + " WHERE r.name = :river"; public static final String SQL_SELECT_POINTS = "SELECT hp.name, hp.geom, hp.id, hp.kind_id, hp.official, fs.name AS fed, hp.description " + " FROM hws_points hp" + " JOIN rivers r ON hp.river_id = r.id" + " LEFT JOIN fed_states fs ON hp.fed_state_id = fs.id" + " WHERE r.name = :river"; private HWSFactory() { } public static HWSContainer getHWSLines(String river) { log.debug("HWSFactory.getHWS"); Cache cache = CacheFactory.getCache(StaticHWSCacheKey.CACHE_NAME); StaticHWSCacheKey cacheKey; if (cache != null) { cacheKey = new StaticHWSCacheKey(river, HWS_LINES); Element element = cache.get(cacheKey); if (element != null) { log.debug("Got static hws values from cache"); return (HWSContainer)element.getValue(); } } else { cacheKey = null; } HWSContainer values = getHWSLinesUncached(river); if (values != null && cacheKey != null) { log.debug("Store static hws values in cache."); Element element = new Element(cacheKey, values); cache.put(element); } return values; } public static HWSContainer getHWSPoints(String river) { log.debug("HWSFactory.getHWS"); Cache cache = CacheFactory.getCache(StaticHWSCacheKey.CACHE_NAME); StaticHWSCacheKey cacheKey; if (cache != null) { cacheKey = new StaticHWSCacheKey(river, HWS_LINES); Element element = cache.get(cacheKey); if (element != null) { log.debug("Got static hws values from cache"); return (HWSContainer)element.getValue(); } } else { cacheKey = null; } HWSContainer values = getHWSPointsUncached(river); if (values != null && cacheKey != null) { log.debug("Store static hws values in cache."); Element element = new Element(cacheKey, values); cache.put(element); } return values; } private static HWSContainer getHWSLinesUncached(String river) { if (log.isDebugEnabled()) { log.debug("HWSFactory.getHWSLinesUncached"); } Session session = SessionHolder.HOLDER.get(); SQLQuery sqlQuery = null; HWSContainer container = new HWSContainer(); container.setRiver(river); container.setType(HWS.TYPE.LINE); sqlQuery = session.createSQLQuery(SQL_SELECT_LINES) .addScalar("name", StandardBasicTypes.STRING) .addScalar("geom", GeometryUserType.TYPE) .addScalar("id", StandardBasicTypes.STRING) .addScalar("kind_id", StandardBasicTypes.INTEGER) .addScalar("official", StandardBasicTypes.INTEGER) .addScalar("fed", StandardBasicTypes.STRING) .addScalar("description", StandardBasicTypes.STRING); sqlQuery.setString("river", river); List<Object []> resultsLines = sqlQuery.list(); for (Object [] row: resultsLines) { container.addHws( new HWS( (String) row[0], (Geometry) row[1], (String) row[2], (Integer) row[3], (Integer) row[4], (String) row[5], (String) row[6], HWS.TYPE.LINE)); } return container; } private static HWSContainer getHWSPointsUncached(String river) { if (log.isDebugEnabled()) { log.debug("HWSFactory.getHWSLinesUncached"); } Session session = SessionHolder.HOLDER.get(); SQLQuery sqlQuery = null; HWSContainer container = new HWSContainer(); container.setRiver(river); container.setType(HWS.TYPE.LINE); sqlQuery = session.createSQLQuery(SQL_SELECT_POINTS) .addScalar("name", StandardBasicTypes.STRING) .addScalar("geom", GeometryUserType.TYPE) .addScalar("id", StandardBasicTypes.STRING) .addScalar("kind_id", StandardBasicTypes.INTEGER) .addScalar("official", StandardBasicTypes.INTEGER) .addScalar("fed", StandardBasicTypes.STRING) .addScalar("description", StandardBasicTypes.STRING); sqlQuery.setString("river", river); List<Object []> resultsPoints = sqlQuery.list(); for (int i = 0; i < resultsPoints.size(); i++) { Object[] row = resultsPoints.get(i); container.addHws( new HWS( (String) row[0], (Geometry) row[1], (String) row[2], (Integer) row[3], (Integer) row[4], (String) row[5], (String) row[6], HWS.TYPE.POINT)); } return container; } }