Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/org/dive4elements/river/exports/fixings/FixChartGenerator.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/exports/fixings/FixChartGenerator.java@dd8a63002fb8
children
rev   line source
5831
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 4437
diff changeset
1 package org.dive4elements.river.exports.fixings;
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2
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3 import org.dive4elements.artifacts.ArtifactNamespaceContext;
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4 import org.dive4elements.artifacts.CallContext;
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5 import org.dive4elements.artifacts.common.utils.XMLUtils;
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6 import org.dive4elements.river.exports.XYChartGenerator;
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7
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8 import java.io.OutputStream;
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9
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10 import org.apache.log4j.Logger;
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11 import org.w3c.dom.Document;
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12
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13 /**
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14 * Base class for FixChartGenerator.
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15 */
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16 public abstract class FixChartGenerator
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17 extends XYChartGenerator
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18 {
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19 /** Private logger. */
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20 private static Logger logger = Logger.getLogger(FixChartGenerator.class);
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21
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22 public static final Double INVALID_KM = Double.valueOf(-1d);
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23 public static final String CURRENT_KM = "currentKm";
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24 public static final String XPATH_CHART_CURRENTKM =
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25 "/art:action/art:attributes/art:currentKm/@art:km";
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26
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27 @Override
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28 public void init(Document request, OutputStream out, CallContext context) {
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29 super.init(request, out, context);
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30
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31 Double currentKm = getCurrentKmFromRequest(request);
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32
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33 if (logger.isDebugEnabled()) {
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34 logger.debug("currentKm = " + currentKm);
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35 }
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36
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37 if (currentKm != INVALID_KM) {
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38 context.putContextValue(CURRENT_KM, currentKm);
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39 }
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40 }
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41
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42 public static final Double getCurrentKmFromRequest(Document request) {
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43
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44 String km = XMLUtils.xpathString(
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45 request,
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46 XPATH_CHART_CURRENTKM,
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47 ArtifactNamespaceContext.INSTANCE);
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48
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49 if (km == null) {
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50 return INVALID_KM;
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51 }
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52
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53 try {
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54 return Double.valueOf(km);
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55 }
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56 catch (NumberFormatException nfe) {
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57 return INVALID_KM;
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58 }
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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