Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/WMSHWSPointsArtifact.java @ 6693:88bb0c794833
issue1391: Enable GaugeDischarge artifact to directly load a table by its ID
This allows us to use the GaugeDischargeArtifact for any discharge
tables that we have in our database. The name of the created facet
is taken from the ids string as is also usual in the WMS artifacts.
author | Andre Heinecke <aheinecke@intevation.de> |
---|---|
date | Mon, 29 Jul 2013 12:19:57 +0200 |
parents | af13ceeba52a |
children | 8d5ca5175038 |
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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; import java.util.List; import org.w3c.dom.Document; import org.apache.log4j.Logger; import com.vividsolutions.jts.geom.Envelope; import org.dive4elements.artifacts.ArtifactFactory; import org.dive4elements.artifacts.CallMeta; import org.dive4elements.artifactdatabase.state.DefaultOutput; import org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.artifactdatabase.state.State; import org.dive4elements.river.model.HWSPoint; import org.dive4elements.river.model.River; import org.dive4elements.river.artifacts.model.FacetTypes; import org.dive4elements.river.artifacts.model.RiverFactory; import org.dive4elements.river.utils.RiverUtils; import org.dive4elements.river.utils.GeometryUtils; public class WMSHWSPointsArtifact extends WMSDBArtifact { public static final String NAME = "hws_points"; private static final Logger logger = Logger.getLogger(WMSHWSPointsArtifact.class); @Override public void setup( String identifier, ArtifactFactory factory, Object context, CallMeta callMeta, Document data) { logger.debug("WMSHWSPointsArtifact.setup"); super.setup(identifier, factory, context, callMeta, data); } @Override public String getName() { return NAME; } @Override public State getCurrentState(Object cc) { State s = new HWSPointsState(this); List<Facet> fs = getFacets(getCurrentStateId()); DefaultOutput o = new DefaultOutput( "floodmap", "floodmap", "image/png", fs, "map"); s.getOutputs().add(o); return s; } public static class HWSPointsState extends WMSDBState implements FacetTypes { private static final Logger logger = Logger.getLogger(HWSPointsState.class); protected int riverId; public HWSPointsState(WMSDBArtifact artifact) { super(artifact); riverId = 0; } public int getRiverId() { if (riverId == 0) { String ids = artifact.getDataAsString("ids"); String[] parts = ids.split(";"); try { riverId = Integer.parseInt(parts[0]); } catch (NumberFormatException nfe) { logger.error("Cannot parse river id from '" + parts[0] + "'"); } } return riverId; } @Override protected String getFacetType() { return FLOODMAP_HWS_POINTS; } @Override protected String getUrl() { return RiverUtils.getUserWMSUrl(artifact.identifier()); } @Override protected String getSrid() { River river = RiverFactory.getRiver(getRiverId()); return RiverUtils.getRiverSrid(river.getName()); } @Override protected Envelope getExtent(boolean reproject) { List<HWSPoint> hws = HWSPoint.getPoints(getRiverId(), getName()); Envelope max = null; for (HWSPoint h: hws) { Envelope env = h.getGeom().getEnvelopeInternal(); if (max == null) { max = env; continue; } max.expandToInclude(env); } return max != null && reproject ? GeometryUtils.transform(max, getSrid()) : max; } @Override protected String getFilter() { return "river_id=" + String.valueOf(getRiverId()) + " AND name='" + getName() + "'"; } @Override protected String getDataString() { String srid = getSrid(); if (RiverUtils.isUsingOracle()) { return "geom FROM hws_points USING SRID " + srid; } else { return "geom FROM hws_points USING UNIQUE id USING SRID " + srid; } } @Override protected String getGeometryType() { return "POINT"; } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :