Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/WMSHWSPointsArtifact.java @ 9425:3f49835a00c3
Extended CrossSectionFacet so it may fetch different data from within the artifact result.
Also allows to have acces to the potentially already computed artifact result via its normal computation cache.
author | gernotbelger |
---|---|
date | Fri, 17 Aug 2018 15:31:02 +0200 |
parents | 5e38e2924c07 |
children | 0a5239a1e46e |
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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.apache.log4j.Logger; import com.vividsolutions.jts.geom.Envelope; 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 log = Logger.getLogger(WMSHWSPointsArtifact.class); @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 log = 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) { log.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 :