Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WMSBackgroundState.java @ 4902:e1566938d04c
Added new functions to datacage templating language.
* get minimum of location/distance:
dc:fromValue($ld_mode, $ld_locations, $ld_from)
- returns -Double.MAX_VALUE if no min exists.
* get maximum of location/distance:
dc:toValue($ld_mode, $ld_locations, $ld_to)
- returns Double.MAX_VALUE if no max exists.
author | Raimund Renkert <rrenkert@intevation.de> |
---|---|
date | Tue, 29 Jan 2013 17:11:26 +0100 |
parents | 453d2d0c4258 |
children |
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package de.intevation.flys.artifacts.states; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.xml.xpath.XPathConstants; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Node; import de.intevation.artifactdatabase.state.Facet; import de.intevation.artifacts.CallMeta; import de.intevation.artifacts.common.utils.Config; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.flys.artifacts.FLYSArtifact; import de.intevation.flys.artifacts.model.map.WMSLayerFacet; import de.intevation.flys.artifacts.resources.Resources; public class WMSBackgroundState extends OutputState { public static final String I18N_DESCRIPTION = "floodmap.wmsbackground"; public static final String XPATH_SRID = "/artifact-database/floodmap/river[@name=$name]/srid/@value"; public static final String XPATH_WMS_URL = "/artifact-database/floodmap/river[@name=$name]/background-wms/@url"; public static final String XPATH_WMS_LAYER = "/artifact-database/floodmap/river[@name=$name]/background-wms/@layers"; protected String url; protected String layer; protected String srid; protected Document cfg; protected Map<String, String> variables; private static final Logger logger = Logger.getLogger(WMSBackgroundState.class); @Override public void setup(Node config) { super.setup(config); logger.debug("WMSBackgroundState.setup()"); } @Override public Object computeInit( FLYSArtifact artifact, String hash, Object context, CallMeta meta, List<Facet> facets ) { logger.debug("WMSBackgroundState.computeInit()"); initVariables(artifact); if (url == null || layer == null) { // XXX I don't remember why 'srid', 'url' and 'layer' are member // variables. I think the reason was buffering those values. srid = getSrid(); url = getUrl(); layer = getLayer(); } if (url == null || layer == null) { logger.warn("No background layers currently configured:"); logger.warn("... add config for WMS url: " + XPATH_WMS_URL); logger.warn("... add config for WMS layer: " + XPATH_WMS_LAYER); return null; } WMSLayerFacet facet = new WMSLayerFacet( 0, getFacetType(), getTitle(meta), ComputeType.INIT, getID(), hash, url); facet.addLayer(layer); facet.setSrid(srid); facets.add(facet); return null; } protected Document getConfig() { if (cfg == null) { cfg = Config.getConfig(); } return cfg; } protected void initVariables(FLYSArtifact artifact) { String river = artifact.getDataAsString("river"); variables = new HashMap<String, String>(); variables.put("name", river); } protected String getFacetType() { return FLOODMAP_WMSBACKGROUND; } protected String getSrid() { return (String) XMLUtils.xpath( getConfig(), XPATH_SRID, XPathConstants.STRING, null, variables); } protected String getUrl() { return (String) XMLUtils.xpath( getConfig(), XPATH_WMS_URL, XPathConstants.STRING, null, variables); } protected String getLayer() { return (String) XMLUtils.xpath( getConfig(), XPATH_WMS_LAYER, XPathConstants.STRING, null, variables); } protected String getTitle(CallMeta meta) { return Resources.getMsg(meta, I18N_DESCRIPTION, I18N_DESCRIPTION); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :