Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/WMSLineArtifact.java @ 4679:23392c25fc11
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author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 14 Dec 2012 10:41:42 +0100 |
parents | a2735a4bf75e |
children | 6da542572ab1 |
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package de.intevation.flys.artifacts; import java.util.List; import org.w3c.dom.Document; import org.apache.log4j.Logger; import com.vividsolutions.jts.geom.Envelope; import de.intevation.artifacts.ArtifactFactory; import de.intevation.artifacts.CallMeta; import de.intevation.artifactdatabase.state.DefaultOutput; import de.intevation.artifactdatabase.state.Facet; import de.intevation.artifactdatabase.state.State; import de.intevation.flys.model.River; import de.intevation.flys.model.Line; import de.intevation.flys.artifacts.model.FacetTypes; import de.intevation.flys.artifacts.model.RiverFactory; import de.intevation.flys.utils.FLYSUtils; import de.intevation.flys.utils.GeometryUtils; public class WMSLineArtifact extends WMSDBArtifact { public static final String NAME = "lines"; private static final Logger logger = Logger.getLogger(WMSLineArtifact.class); @Override public void setup( String identifier, ArtifactFactory factory, Object context, CallMeta callMeta, Document data) { logger.debug("WMSLineArtifact.setup"); super.setup(identifier, factory, context, callMeta, data); } @Override public String getName() { return NAME; } @Override public State getCurrentState(Object cc) { State s = new LineState(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 LineState extends WMSDBState implements FacetTypes { private static final Logger logger = Logger.getLogger(LineState.class); protected int riverId; public LineState(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_LINES; } @Override protected String getUrl() { return FLYSUtils.getUserWMSUrl(artifact.identifier()); } @Override protected String getSrid() { River river = RiverFactory.getRiver(getRiverId()); return FLYSUtils.getRiverSrid(river.getName()); } @Override protected Envelope getExtent(boolean reproject) { List<Line> lines = Line.getLines(getRiverId(), getName()); Envelope max = null; for (Line l: lines) { Envelope env = l.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 (FLYSUtils.isUsingOracle()) { return "geom FROM lines USING SRID " + srid; } else { return "geom FROM lines USING UNIQUE id USING SRID " + srid; } } @Override protected String getGeometryType() { return "LINE"; } } // end of WMSKmState } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :