Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/services/DischargeInfoService.java @ 8755:30b1ddadf275
(issue1801) Unify reference gauge finding code
The basic way as described in the method comment of the
determineRefGauge method is now used in the WINFOArtifact,
MainValuesService and RiverUtils.getGauge method.
RiverUtils.getGauge previously just returned the first
gauge found. While this is now a behavior change I believe
that it is always more correct then the undeterministic
behavior of the previous implmenentation.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Wed, 24 Jun 2015 14:07:26 +0200 |
parents | e4606eae8ea5 |
children | 5e38e2924c07 |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.services; import java.util.Collections; import java.util.List; import java.util.Date; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.dive4elements.artifacts.CallMeta; import org.dive4elements.artifacts.GlobalContext; import org.dive4elements.artifacts.common.ArtifactNamespaceContext; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.river.artifacts.model.DischargeTables; import org.dive4elements.river.model.Gauge; import org.dive4elements.river.model.DischargeTable; import org.dive4elements.river.model.TimeInterval; /** * This service provides information about discharges at a defined gauge. * * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public class DischargeInfoService extends D4EService { /** The log used in this service. */ private static Logger log = Logger.getLogger(DischargeInfoService.class); public static final String GAUGE_XPATH = "/art:gauge/text()"; public static final String RIVER_NAME_XPATH = "/art:gauge/art:river/text()"; public DischargeInfoService() { } @Override public Document doProcess( Document data, GlobalContext globalContext, CallMeta callMeta ) { if (log.isDebugEnabled()) { log.debug("DischargeInfoService.process"); log.debug(XMLUtils.toString(data)); } String gaugeNumber = XMLUtils.xpathString( data, GAUGE_XPATH, ArtifactNamespaceContext.INSTANCE); String river = XMLUtils.xpathString( data, RIVER_NAME_XPATH, ArtifactNamespaceContext.INSTANCE); if (gaugeNumber == null || (gaugeNumber = gaugeNumber.trim()).length() == 0) { log.warn("No gauge specified. Cannot return discharge info."); return XMLUtils.newDocument(); } log.debug("Getting discharge for gauge: " + gaugeNumber + " at river: " + river); long gn; try { gn = Long.parseLong(gaugeNumber); } catch (NumberFormatException nfe) { log.warn("Invalid gauge number. Cannot return discharge info."); return XMLUtils.newDocument(); } Gauge gauge; if (river == null || river.isEmpty()) { gauge = Gauge.getGaugeByOfficialNumber(gn); } else { gauge = Gauge.getGaugeByOfficialNumber(gn, river); } if (gauge == null) { log.warn("No such gauge found."); return XMLUtils.newDocument(); } log.debug("Found gauge: " + gauge.getName() + " id: " + gauge.getId()); return buildDocument(gauge); } protected Document buildDocument(Gauge gauge) { Document result = XMLUtils.newDocument(); List<DischargeTable> tables = gauge.getDischargeTables(); Collections.sort(tables); log.debug("# of tables:" + tables.size()); Element all = result.createElement("discharges"); for (DischargeTable dt: tables) { if (dt.getKind() == DischargeTables.MASTER) { continue; } Element discharge = result.createElement("discharge"); discharge.setAttribute("description", dt.getDescription()); // Get time interval. TimeInterval ti = dt.getTimeInterval(); if (ti == null) { log.warn("DischargeTable has no TimeInterval set!"); continue; } Date startTime = ti.getStartTime(); Date stopTime = ti.getStopTime(); if (startTime != null) { discharge.setAttribute("start", String.valueOf(startTime.getTime())); } else { continue; } if (stopTime != null) { discharge.setAttribute("end", String.valueOf(stopTime.getTime())); } else { long now = System.currentTimeMillis(); discharge.setAttribute("end", String.valueOf(now)); } String bfgId = dt.getBfgId(); if (bfgId != null) { discharge.setAttribute("bfg-id", bfgId); } all.appendChild(discharge); } result.appendChild(all); return result; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :