Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/backend/SessionHolder.java @ 9801:1d7a72a50183 3.2.x tip

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Assume Compose V2, consistently
author Tom Gottfried <tom@intevation.de>
date Thu, 23 Nov 2023 10:14:13 +0100
parents 0a5239a1e46e
children
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.backend;
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10
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11 import org.apache.logging.log4j.Logger;
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12 import org.apache.logging.log4j.LogManager;
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13
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14 import org.hibernate.Session;
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15 import org.hibernate.SessionFactory;
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16
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17
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18 public class SessionHolder
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19 {
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20 private static Logger log =
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21 LogManager.getLogger(SessionHolder.class);
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22
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23 public static final ThreadLocal<Session> HOLDER =
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24 new ThreadLocal<Session>() {
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25 @Override
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26 protected Session initialValue() {
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27 Session session = create();
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28 log.debug("Initial session value: " + session.hashCode());
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29 return session;
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30 }
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31 };
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32
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33 protected SessionHolder() {
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34 }
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35
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36 public synchronized static Session create() {
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37 log.debug("create");
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38 SessionFactory sessionFactory =
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39 SessionFactoryProvider.getSessionFactory();
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40 return sessionFactory.openSession();
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41 }
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42
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43 public static Session acquire() {
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44 Session session = create();
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45 log.debug("acquired session: " + session.hashCode());
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46 HOLDER.set(session);
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47 return session;
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48 }
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49
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50 public static void release() {
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51 Session session = HOLDER.get();
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52 if (session != null) {
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53 log.debug("releasing session: " + session.hashCode());
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54 session.close();
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55 } else {
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56 log.error("release() called on NULL session.");
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57 }
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58 HOLDER.remove();
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59 }
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60 }
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61 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org