Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/SedimentLoadInfoService.java @ 4297:6d44914b2dd4
Added serverside service for sediment load info.
The service presents an overview for sediment loads.
| author | Raimund Renkert <rrenkert@intevation.de> |
|---|---|
| date | Mon, 29 Oct 2012 13:09:16 +0100 |
| parents | |
| children | b195fede1c3b |
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| 4296:3051bc28ac43 | 4297:6d44914b2dd4 |
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| 1 package de.intevation.flys.artifacts.services; | |
| 2 | |
| 3 import java.util.Calendar; | |
| 4 | |
| 5 import org.apache.log4j.Logger; | |
| 6 import org.w3c.dom.Document; | |
| 7 import org.w3c.dom.Element; | |
| 8 | |
| 9 import de.intevation.artifacts.ArtifactNamespaceContext; | |
| 10 import de.intevation.artifacts.CallMeta; | |
| 11 import de.intevation.artifacts.GlobalContext; | |
| 12 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 13 import de.intevation.flys.artifacts.model.minfo.SedimentLoad; | |
| 14 import de.intevation.flys.artifacts.model.minfo.SedimentLoadFactory; | |
| 15 | |
| 16 | |
| 17 public class SedimentLoadInfoService | |
| 18 extends FLYSService | |
| 19 { | |
| 20 /** The logger used in this service. */ | |
| 21 private static Logger logger = Logger.getLogger(SedimentLoadInfoService.class); | |
| 22 | |
| 23 public static final String RIVER_XPATH = "/art:river/text()"; | |
| 24 public static final String TYPE_XPATH = "/art:river/art:type/text()"; | |
| 25 public static final String FROM_XPATH = "/art:river/art:location/art:from/text()"; | |
| 26 public static final String TO_XPATH = "/art:river/art:location/art:to/text()"; | |
| 27 | |
| 28 @Override | |
| 29 protected Document doProcess( | |
| 30 Document data, | |
| 31 GlobalContext globalContext, | |
| 32 CallMeta callMeta) { | |
| 33 String river = XMLUtils.xpathString( | |
| 34 data, | |
| 35 RIVER_XPATH, | |
| 36 ArtifactNamespaceContext.INSTANCE); | |
| 37 String type = XMLUtils.xpathString( | |
| 38 data, | |
| 39 TYPE_XPATH, | |
| 40 ArtifactNamespaceContext.INSTANCE); | |
| 41 String from = XMLUtils.xpathString( | |
| 42 data, | |
| 43 FROM_XPATH, | |
| 44 ArtifactNamespaceContext.INSTANCE); | |
| 45 String to = XMLUtils.xpathString( | |
| 46 data, | |
| 47 TO_XPATH, | |
| 48 ArtifactNamespaceContext.INSTANCE); | |
| 49 double f, t; | |
| 50 try { | |
| 51 f = Double.parseDouble(from); | |
| 52 t = Double.parseDouble(to); | |
| 53 } | |
| 54 catch (NumberFormatException nfe) { | |
| 55 logger.warn("Invalid locations. Cannot return sediment loads."); | |
| 56 return XMLUtils.newDocument(); | |
| 57 } | |
| 58 | |
| 59 SedimentLoad[] loads = SedimentLoadFactory.getLoads(river, type, f, t); | |
| 60 return buildDocument(loads); | |
| 61 } | |
| 62 | |
| 63 protected Document buildDocument(SedimentLoad[] loads) { | |
| 64 Document result = XMLUtils.newDocument(); | |
| 65 Element all = result.createElement("sedimentloads"); | |
| 66 for (SedimentLoad sl : loads) { | |
| 67 Element load = result.createElement("sedimentload"); | |
| 68 load.setAttribute("description", sl.getDescription()); | |
| 69 if (sl.isEpoch()) { | |
| 70 Calendar calendarS = Calendar.getInstance(); | |
| 71 calendarS.setTime(sl.getStart()); | |
| 72 Calendar calendarE = Calendar.getInstance(); | |
| 73 calendarE.setTime(sl.getEnd()); | |
| 74 load.setAttribute( | |
| 75 "date", | |
| 76 calendarS.get(Calendar.YEAR) + | |
| 77 " - " + | |
| 78 calendarE.get(Calendar.YEAR)); | |
| 79 } | |
| 80 else { | |
| 81 Calendar calendar = Calendar.getInstance(); | |
| 82 calendar.setTime(sl.getStart()); | |
| 83 load.setAttribute( | |
| 84 "date", | |
| 85 String.valueOf(calendar.get(Calendar.YEAR))); | |
| 86 } | |
| 87 all.appendChild(load); | |
| 88 } | |
| 89 result.appendChild(all); | |
| 90 return result; | |
| 91 } | |
| 92 } |