Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/services/MeasurementStationInfoService.java @ 7471:fff862f4ef76
Experimental caching of datacage recommendations. The respective hook is called a lot and running the datacage over and over again when loading data can be expensive. So the generated recommendations are cached for some time.
Hopefully this improves the overall speed of loading data from the datacage.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 30 Oct 2013 15:26:21 +0100 |
parents | af13ceeba52a |
children | e4606eae8ea5 |
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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.math.BigDecimal; import java.text.DateFormat; import java.util.Date; import java.util.List; import java.util.Locale; 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.river.model.MeasurementStation; import org.dive4elements.river.model.Range; import org.dive4elements.river.model.TimeInterval; /** * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a> */ public class MeasurementStationInfoService extends RiverInfoService { private static final Logger logger = Logger.getLogger( MeasurementStationInfoService.class); public static final DateFormat DATE_FORMAT = DateFormat.getDateInstance( DateFormat.SHORT, Locale.GERMANY); @Override public Document doProcess( Document data, GlobalContext globalContext, CallMeta callMeta ) { Document result = super.doProcess(data, globalContext, callMeta); Element egs = ec.create("measurement-stations"); List<MeasurementStation> mstations = river.getMeasurementStations(); if (logger.isDebugEnabled()) { logger.debug("Loaded stations: " + mstations); } for (MeasurementStation mstation: mstations) { Element eg = ec.create("measurement-station"); String name = mstation.getName(); if (name != null) { ec.addAttr(eg, "name", name, true); } Integer id = mstation.getId(); if (id != null) { ec.addAttr(eg, "id", Integer.toString(id), true); } String type = mstation.getMeasurementType(); if (type != null) { ec.addAttr(eg, "type", type, true); } String riverside = mstation.getRiverside(); if (riverside != null) { ec.addAttr(eg, "riverside", riverside, true); } Double station = mstation.getStation(); if (station != null) { ec.addAttr(eg, "station", Double.toString(station), true); } Range range = mstation.getRange(); if (range != null) { BigDecimal a = range.getA(); if (a != null) { ec.addAttr(eg, "start", getStringValue(a), true); } BigDecimal b = range.getB(); if (b != null) { ec.addAttr(eg, "end", getStringValue(b), true); } } String moperator = mstation.getOperator(); if (moperator != null) { ec.addAttr(eg, "operator", moperator, true); } TimeInterval tinterval = mstation.getObservationTimerange(); if (tinterval != null) { Date tstart = tinterval.getStartTime(); if (tstart != null) { ec.addAttr(eg, "starttime", DATE_FORMAT.format(tstart), true); } Date tstop = tinterval.getStopTime(); if (tstop != null) { ec.addAttr(eg, "stoptime", DATE_FORMAT.format(tstop), true); } } String gaugename= mstation.getGaugeName(); if (gaugename != null) { Element egauge = ec.create("gauge"); ec.addAttr(egauge, "name", gaugename, true); eg.appendChild(egauge); } egs.appendChild(eg); } this.riverele.appendChild(egs); return result; } }