Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/exports/fixings/FixChartGenerator.java @ 4444:47d50572844a
Add method to a access the CallContext of a ChartGenerator
Don't access the member variable directly. Always use getters and setters to
declare a contract to another class. Public or proteced members
would extend the contract.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Wed, 07 Nov 2012 14:12:39 +0100 |
parents | dd8a63002fb8 |
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rev | line source |
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Moved current km to context and added an abstract generator for fix analysis
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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1 package de.intevation.flys.exports.fixings; |
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2 |
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3 import de.intevation.artifacts.ArtifactNamespaceContext; |
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4 import de.intevation.artifacts.CallContext; |
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5 import de.intevation.artifacts.common.utils.XMLUtils; |
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6 import de.intevation.flys.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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parents:
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38 context.putContextValue(CURRENT_KM, currentKm); |
dd8a63002fb8
Only put current Km to the context if it is a valid km
Björn Ricks <bjoern.ricks@intevation.de>
parents:
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diff
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39 } |
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff
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40 } |
960307cf2adc
Moved current km to context and added an abstract generator for fix analysis
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff
changeset
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41 |
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parents:
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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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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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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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parents:
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51 } |
960307cf2adc
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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 } |
960307cf2adc
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parents:
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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 : |