Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/CreateHistogramAction.java @ 963:0441e78cd900

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Add more Javadocs gnv/trunk@1107 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 18 May 2010 11:09:33 +0000
parents 254f062e334b
children 33198e55371c
rev   line source
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1 package de.intevation.gnv.action;
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2
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3 import javax.servlet.http.HttpServletRequest;
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4 import javax.servlet.http.HttpServletResponse;
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5
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6 import org.apache.log4j.Logger;
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7 import org.apache.struts.action.ActionForm;
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8 import org.apache.struts.action.ActionForward;
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9 import org.apache.struts.action.ActionMapping;
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10
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11 import de.intevation.gnv.action.sessionmodel.SessionModel;
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12 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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13
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14 /**
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15 * This controller is called to display histograms.<br>
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16 * An attribute 'histogram' on the request object is activated which inserts an
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17 * image calling a histogram output of the server.
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18 *
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19 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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20 */
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21 public class CreateHistogramAction extends DescribeUIAction {
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22
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23 /**
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24 * the logger, used to log exceptions and additonaly information
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25 */
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26 private static Logger logger = Logger.getLogger(CreateHistogramAction.class);
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27
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28
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29 /**
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30 * Constructor
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31 */
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32 public CreateHistogramAction() {
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33 super();
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34 }
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35
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36
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37 @Override
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38 public ActionForward execute(
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39 ActionMapping mapping,
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40 ActionForm form,
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41 HttpServletRequest request,
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42 HttpServletResponse response)
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43 throws Exception {
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44 logger.debug("Create histogram.");
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45
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46 SessionModel sm = SessionModelFactory.getInstance().getSessionModel(
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47 request);
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48 sm.setDiagrammOptions(null);
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49 request.setAttribute("histogram", true);
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50
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51 return super.execute(mapping, form, request, response);
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52 }
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53 }
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54 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org