Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/exports/fixings/FixChartGenerator.java @ 7605:f51c943c707a
(issue1560) Fix off by one error in ATWriter causing the last value to be omitted.
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Wed, 27 Nov 2013 17:17:54 +0100 |
parents | 0a337f0005c2 |
children | e4606eae8ea5 |
rev | line source |
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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.exports.fixings; |
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10 |
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11 import org.dive4elements.artifacts.ArtifactNamespaceContext; |
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12 import org.dive4elements.artifacts.CallContext; |
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13 import org.dive4elements.artifacts.common.utils.XMLUtils; |
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14 import org.dive4elements.river.exports.XYChartGenerator; |
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15 |
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16 import java.io.OutputStream; |
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17 |
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18 import org.apache.log4j.Logger; |
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19 import org.w3c.dom.Document; |
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20 |
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21 /** |
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22 * Base class for FixChartGenerator. |
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23 */ |
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24 public abstract class FixChartGenerator |
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25 extends XYChartGenerator |
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26 { |
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27 /** Private logger. */ |
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28 private static Logger logger = Logger.getLogger(FixChartGenerator.class); |
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29 |
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30 public static final Double INVALID_KM = Double.valueOf(-1d); |
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31 public static final String CURRENT_KM = "currentKm"; |
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32 public static final String XPATH_CHART_CURRENTKM = |
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33 "/art:action/art:attributes/art:currentKm/@art:km"; |
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34 |
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35 @Override |
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36 public void init(String outName, Document request, OutputStream out, CallContext context) { |
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37 super.init(outName, request, out, context); |
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38 |
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39 Double currentKm = getCurrentKmFromRequest(request); |
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40 |
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41 if (logger.isDebugEnabled()) { |
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42 logger.debug("currentKm = " + currentKm); |
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43 } |
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44 |
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45 if (currentKm != INVALID_KM) { |
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46 context.putContextValue(CURRENT_KM, currentKm); |
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47 } |
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48 } |
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49 |
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50 public static final Double getCurrentKmFromRequest(Document request) { |
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51 |
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52 String km = XMLUtils.xpathString( |
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53 request, |
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54 XPATH_CHART_CURRENTKM, |
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55 ArtifactNamespaceContext.INSTANCE); |
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56 |
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57 if (km == null) { |
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58 return INVALID_KM; |
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59 } |
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60 |
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61 try { |
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62 return Double.valueOf(km); |
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63 } |
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64 catch (NumberFormatException nfe) { |
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65 return INVALID_KM; |
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66 } |
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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=utf8 : |