Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/states/WMSBackgroundState.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 | 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.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 org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.artifacts.CallMeta; import org.dive4elements.artifacts.common.utils.Config; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.model.map.WMSLayerFacet; import org.dive4elements.river.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( D4EArtifact 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(D4EArtifact 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 :