Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/org/dive4elements/river/artifacts/context/SessionCallContextListener.java @ 5831:bd047b71ab37

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Repaired internal references
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 12:06:39 +0200
parents flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/SessionCallContextListener.java@94c176fdcb89
children
rev   line source
5831
bd047b71ab37 Repaired internal references
Sascha L. Teichmann <teichmann@intevation.de>
parents: 315
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1 package org.dive4elements.river.artifacts.context;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import org.w3c.dom.Document;
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6 import org.w3c.dom.Node;
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7
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8 import org.hibernate.Session;
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9
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10 import org.dive4elements.river.backend.SessionHolder;
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11
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12 import org.dive4elements.artifacts.CallContext;
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13 import org.dive4elements.artifacts.CallContext.Listener;
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84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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16 /**
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17 * This CallContextListener is used to initialize a ThreadLocal variable in
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18 * each CallContext (for each request) that holds Sessions.
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19 *
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20 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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21 */
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22 public class SessionCallContextListener implements Listener {
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23
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24 public static final String SESSION_KEY = "context.session";
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26 /** The logger that is used in this class.*/
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27 private static Logger logger =
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28 Logger.getLogger(SessionCallContextListener.class);
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31 public SessionCallContextListener() {
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32 }
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34
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35 public void setup(Document config, Node listenerConfig) {
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36 // nothing to do here
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37 }
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38
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39
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40 /**
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41 * Initializes a ThreadLocal variable that is used to hold sessions.
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42 *
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43 * @param context The CallContext.
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44 */
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45 public void init(CallContext context) {
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46 logger.debug("SessionCallContextListener.init");
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47
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48 Session session = SessionHolder.acquire();
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50 context.putContextValue(SESSION_KEY, session);
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51 }
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54 /**
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55 * Closes open sessions of the ThreadLocal variable opened in init().
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56 *
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57 * @param context The CallContext.
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58 */
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59 public void close(CallContext context) {
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60 logger.debug("SessionCallContextListener.close");
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62 Session session = (Session)context.getContextValue(SESSION_KEY);
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63 session.close();
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65 SessionHolder.release();
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66 }
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67 }
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68 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org