Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/artifacts/services/AbstractDynamicMainValuesService.java @ 9404:bc9a45d2b1fa
common time range for gauges incl. error messages
| author | gernotbelger |
|---|---|
| date | Wed, 15 Aug 2018 13:59:09 +0200 |
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| children |
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| 9403:e2da9c8a7c57 | 9404:bc9a45d2b1fa |
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| 1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde | |
| 2 * Software engineering by Intevation GmbH | |
| 3 * | |
| 4 * This file is Free Software under the GNU AGPL (>=v3) | |
| 5 * and comes with ABSOLUTELY NO WARRANTY! Check out the | |
| 6 * documentation coming with Dive4Elements River for details. | |
| 7 */ | |
| 8 | |
| 9 package org.dive4elements.river.artifacts.services; | |
| 10 | |
| 11 import java.util.Date; | |
| 12 import java.util.List; | |
| 13 | |
| 14 import org.dive4elements.artifacts.CallMeta; | |
| 15 import org.dive4elements.artifacts.GlobalContext; | |
| 16 import org.dive4elements.artifacts.common.ArtifactNamespaceContext; | |
| 17 import org.dive4elements.artifacts.common.utils.XMLUtils; | |
| 18 import org.dive4elements.river.model.Gauge; | |
| 19 import org.dive4elements.river.model.MainValue; | |
| 20 import org.dive4elements.river.model.River; | |
| 21 import org.w3c.dom.Document; | |
| 22 | |
| 23 /** | |
| 24 * This service returns the main values of a river's gauge based on the start | |
| 25 * and end point of the river. | |
| 26 * | |
| 27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 28 */ | |
| 29 abstract public class AbstractDynamicMainValuesService extends AbstractMainValuesService { | |
| 30 | |
| 31 private static final long serialVersionUID = 1L; | |
| 32 | |
| 33 @Override | |
| 34 public Document doProcess(final Document data, final GlobalContext context, final CallMeta callMeta) { | |
| 35 try { | |
| 36 | |
| 37 final River river = getRequestedRiver(data, "/art:mainvalues/art:river/text()"); | |
| 38 final Gauge gauge = getRequestedGauge(data, river); | |
| 39 final Date startTime = getRequestedStartDate(data, "/art:mainvalues/art:startDate/text()"); | |
| 40 final Date endTime = getRequestedEndDate(data, "/art:mainvalues/art:endDate/text()"); | |
| 41 | |
| 42 final List<MainValue> mainValues = getMainValues(river, gauge, startTime, endTime); | |
| 43 | |
| 44 return buildDocument(river, gauge, mainValues, context); | |
| 45 } | |
| 46 catch (final MainValuesServiceException e) { | |
| 47 // e.printStackTrace(); | |
| 48 return error(e.getMessage()); | |
| 49 } | |
| 50 catch (final Exception e) { | |
| 51 e.printStackTrace(); | |
| 52 return error(e.getMessage()); | |
| 53 } | |
| 54 } | |
| 55 | |
| 56 public static final Date getRequestedStartDate(final Document data, final String XPATH_END_YEAR) throws MainValuesServiceException { | |
| 57 | |
| 58 final String startStr = XMLUtils.xpathString(data, XPATH_END_YEAR, ArtifactNamespaceContext.INSTANCE); | |
| 59 | |
| 60 if (startStr == null) | |
| 61 throw new MainValuesServiceException("no start date"); | |
| 62 | |
| 63 try { | |
| 64 return new Date(Long.parseLong(startStr)); | |
| 65 // FIXME: timezone? probably must match timezone of database | |
| 66 } | |
| 67 catch (final NumberFormatException e) { | |
| 68 e.printStackTrace(); | |
| 69 throw new MainValuesServiceException("invalid start date"); | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 public static final Date getRequestedEndDate(final Document data, final String XPATH_END_DATE) throws MainValuesServiceException { | |
| 74 | |
| 75 final String endStr = XMLUtils.xpathString(data, XPATH_END_DATE, ArtifactNamespaceContext.INSTANCE); | |
| 76 | |
| 77 if (endStr == null) | |
| 78 throw new MainValuesServiceException("no end date"); | |
| 79 | |
| 80 try { | |
| 81 return new Date(Long.parseLong(endStr)); | |
| 82 // FIXME: timezone? probably must match timezone of database | |
| 83 } | |
| 84 catch (final NumberFormatException e) { | |
| 85 e.printStackTrace(); | |
| 86 throw new MainValuesServiceException("invalid end date"); | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 /** | |
| 91 * Computes a gauge's main values for a period of time based on its daily discharges stored in the database | |
| 92 */ | |
| 93 protected abstract List<MainValue> getMainValues(final River river, final Gauge gauge, final Date startTime, final Date endTime) | |
| 94 throws MainValuesServiceException; | |
| 95 | |
| 96 } |