Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/DischargeInfoService.java @ 4173:7d4480c0e68e
Allow users to select the current relevant discharge table in historical discharge table calculattion.
In addition to this, the discharge tables in the helper panel displayed in the client is ordered in time.
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
---|---|
date | Thu, 18 Oct 2012 12:13:48 +0200 |
parents | 0cc2c3d89a9d |
children | 810db532803a |
line wrap: on
line source
package de.intevation.flys.artifacts.services; import java.util.Collections; import java.util.List; import java.util.Date; import java.util.Calendar; import java.util.GregorianCalendar; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; import de.intevation.artifacts.CallMeta; import de.intevation.artifacts.GlobalContext; import de.intevation.artifacts.common.ArtifactNamespaceContext; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.flys.artifacts.model.DischargeTables; import de.intevation.flys.model.Gauge; import de.intevation.flys.model.DischargeTable; import de.intevation.flys.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 FLYSService { /** The logger used in this service. */ private static Logger logger = Logger.getLogger(DischargeInfoService.class); public static final String GAUGE_XPATH = "/art:gauge/text()"; public DischargeInfoService() { } @Override public Document doProcess( Document data, GlobalContext globalContext, CallMeta callMeta ) { logger.debug("DischargeInfoService.process"); logger.debug(XMLUtils.toString(data)); String gaugeNumber = XMLUtils.xpathString( data, GAUGE_XPATH, ArtifactNamespaceContext.INSTANCE); if(gaugeNumber == null || (gaugeNumber = gaugeNumber.trim()).length() == 0) { logger.warn("No gauge specified. Cannot return discharge info."); return XMLUtils.newDocument(); } logger.debug("Getting discharge for gauge: " + gaugeNumber); long gn; try { gn = Long.parseLong(gaugeNumber); } catch (NumberFormatException nfe) { logger.warn("Invalid gauge number. Cannot return discharg info."); return XMLUtils.newDocument(); } Gauge gauge = Gauge.getGaugeByOfficialNumber(gn); logger.debug("Found gauge: " + gauge.getName()); return buildDocument(gauge); } protected Document buildDocument(Gauge gauge) { Document result = XMLUtils.newDocument(); List<DischargeTable> tables =gauge.getDischargeTables(); Collections.sort(tables); Element all = result.createElement("discharges"); for (DischargeTable dt: tables) { Element discharge = result.createElement("discharge"); discharge.setAttribute("description", dt.getDescription()); // Get time interval. TimeInterval ti = dt.getTimeInterval(); if (ti == null) { logger.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 && dt.getKind() != DischargeTables.MASTER) { discharge.setAttribute("end", String.valueOf(stopTime.getTime())); } else if (dt.getKind() == DischargeTables.MASTER) { long now = System.currentTimeMillis(); discharge.setAttribute("end", String.valueOf(now)); } else { continue; } all.appendChild(discharge); } result.appendChild(all); return result; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :