Mercurial > dive4elements > river
view backend/src/main/java/org/dive4elements/river/importer/ImportLocationSystem.java @ 5850:df5d29987df8
Wst: Avoid NPE.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 26 Apr 2013 11:08:58 +0200 |
parents | 4dd33b86dc61 |
children | 4c3ccf2b0304 |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.importer; import java.util.List; import org.apache.log4j.Logger; import org.hibernate.Session; import org.hibernate.Query; import org.dive4elements.river.model.LocationSystem; public class ImportLocationSystem { private static final Logger log = Logger.getLogger(ImportLocationSystem.class); protected String name; protected String description; protected LocationSystem peer; public ImportLocationSystem(String name, String description) { this.name = name; this.description = description; } public void storeDependencies() { log.info("store LocationSystem '" + name + "'"); LocationSystem ls = getPeer(); Session session = ImporterSession.getInstance().getDatabaseSession(); session.flush(); } public LocationSystem getPeer() { if (peer == null) { Session session = ImporterSession.getInstance().getDatabaseSession(); Query query = session.createQuery( "from LocationSystem where " + "name=:name and description=:description"); query.setParameter("name", name); query.setParameter("description", description); List<LocationSystem> lss = query.list(); if (lss.isEmpty()) { peer = new LocationSystem(name, description); session.save(peer); } else { peer = lss.get(0); } } return peer; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :