Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/context/SessionCallContextListener.java @ 8202:e4606eae8ea5

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sed src/**/*.java 's/logger/log/g'
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 05 Sep 2014 12:58:17 +0200
parents af13ceeba52a
children fe7e9da6312a
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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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.artifacts.context;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import org.w3c.dom.Document;
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14 import org.w3c.dom.Node;
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15
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16 import org.hibernate.Session;
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17
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18 import org.dive4elements.river.backend.SessionHolder;
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19
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20 import org.dive4elements.artifacts.CallContext;
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21 import org.dive4elements.artifacts.CallContext.Listener;
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22
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23
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24 /**
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25 * This CallContextListener is used to initialize a ThreadLocal variable in
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26 * each CallContext (for each request) that holds Sessions.
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27 *
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28 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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29 */
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30 public class SessionCallContextListener implements Listener {
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31
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32 public static final String SESSION_KEY = "context.session";
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33
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34 /** The log that is used in this class.*/
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35 private static Logger log =
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36 Logger.getLogger(SessionCallContextListener.class);
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39 public SessionCallContextListener() {
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40 }
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42
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43 public void setup(Document config, Node listenerConfig) {
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44 // nothing to do here
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45 }
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46
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47
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48 /**
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49 * Initializes a ThreadLocal variable that is used to hold sessions.
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50 *
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51 * @param context The CallContext.
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52 */
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53 public void init(CallContext context) {
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54 log.debug("SessionCallContextListener.init");
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55
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56 Session session = SessionHolder.acquire();
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57
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58 context.putContextValue(SESSION_KEY, session);
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59 }
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60
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61
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62 /**
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63 * Closes open sessions of the ThreadLocal variable opened in init().
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64 *
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65 * @param context The CallContext.
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66 */
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67 public void close(CallContext context) {
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68 log.debug("SessionCallContextListener.close");
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69
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70 Session session = (Session)context.getContextValue(SESSION_KEY);
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71 session.close();
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73 SessionHolder.release();
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74 }
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75 }
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76 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org