Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/D4EService.java @ 6920:74b5ffda3eeb

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Doc.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Mon, 26 Aug 2013 15:23:46 +0200
parents af13ceeba52a
children e4606eae8ea5
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.services;
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10
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11 import org.w3c.dom.Document;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import org.hibernate.Session;
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16
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17 import org.dive4elements.artifacts.CallMeta;
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18 import org.dive4elements.artifacts.GlobalContext;
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19
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20 import org.dive4elements.artifactdatabase.XMLService;
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21
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22 import org.dive4elements.river.backend.SessionHolder;
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23
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24
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25 public abstract class D4EService extends XMLService {
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26
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27 private static final Logger logger = Logger.getLogger(D4EService.class);
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28
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29
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30 @Override
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31 public Document processXML(
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32 Document data,
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33 GlobalContext globalContext,
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34 CallMeta callMeta
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35 ) {
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36 init();
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37
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38 try {
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39 return doProcess(data, globalContext, callMeta);
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40 }
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41 finally {
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42 shutdown();
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43 }
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44 }
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45
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46
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47 /** Override to do the meat work (called in processXML). */
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48 protected abstract Document doProcess(
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49 Document data,
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50 GlobalContext globalContext,
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51 CallMeta callMeta);
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52
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53
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54 protected void init() {
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55 logger.debug("init");
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56 SessionHolder.acquire();
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57 }
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58
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59
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60 /** Called when processing done, close session. */
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61 protected void shutdown() {
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62 logger.debug("shutdown");
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63 Session session = SessionHolder.HOLDER.get();
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64 session.close();
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65
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66 SessionHolder.release();
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67 }
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68 }
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69 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org