Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WMSBackgroundState.java @ 2424:092e519ff461
merged flys-artifacts/2.6.1
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:26 +0200 |
| parents | fde3db5e68e8 |
| children | 453d2d0c4258 |
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| 2392:8112ec686a9a | 2424:092e519ff461 |
|---|---|
| 1 package de.intevation.flys.artifacts.states; | |
| 2 | |
| 3 import java.util.HashMap; | |
| 4 import java.util.List; | |
| 5 import java.util.Map; | |
| 6 | |
| 7 import javax.xml.xpath.XPathConstants; | |
| 8 | |
| 9 import org.apache.log4j.Logger; | |
| 10 | |
| 11 import org.w3c.dom.Document; | |
| 12 import org.w3c.dom.Node; | |
| 13 | |
| 14 import de.intevation.artifacts.CallMeta; | |
| 15 | |
| 16 import de.intevation.artifacts.common.utils.Config; | |
| 17 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 18 | |
| 19 import de.intevation.artifactdatabase.state.Facet; | |
| 20 | |
| 21 import de.intevation.flys.artifacts.FLYSArtifact; | |
| 22 import de.intevation.flys.artifacts.model.WMSLayerFacet; | |
| 23 import de.intevation.flys.artifacts.resources.Resources; | |
| 24 import de.intevation.flys.artifacts.states.DefaultState.ComputeType; | |
| 25 | |
| 26 | |
| 27 public class WMSBackgroundState extends OutputState { | |
| 28 | |
| 29 public static final String I18N_DESCRIPTION = "floodmap.wmsbackground"; | |
| 30 | |
| 31 public static final String XPATH_SRID = | |
| 32 "/artifact-database/floodmap/river[@name=$name]/srid/@value"; | |
| 33 | |
| 34 public static final String XPATH_WMS_URL = | |
| 35 "/artifact-database/floodmap/river[@name=$name]/background-wms/@url"; | |
| 36 | |
| 37 public static final String XPATH_WMS_LAYER = | |
| 38 "/artifact-database/floodmap/river[@name=$name]/background-wms/@layers"; | |
| 39 | |
| 40 | |
| 41 protected String url; | |
| 42 protected String layer; | |
| 43 protected String srid; | |
| 44 | |
| 45 protected Document cfg; | |
| 46 | |
| 47 protected Map<String, String> variables; | |
| 48 | |
| 49 | |
| 50 private static final Logger logger = Logger.getLogger(WMSBackgroundState.class); | |
| 51 | |
| 52 | |
| 53 @Override | |
| 54 public void setup(Node config) { | |
| 55 super.setup(config); | |
| 56 | |
| 57 logger.debug("WMSBackgroundState.setup()"); | |
| 58 } | |
| 59 | |
| 60 | |
| 61 @Override | |
| 62 public Object computeInit( | |
| 63 FLYSArtifact artifact, | |
| 64 String hash, | |
| 65 Object context, | |
| 66 CallMeta meta, | |
| 67 List<Facet> facets | |
| 68 ) { | |
| 69 logger.debug("WMSBackgroundState.computeInit()"); | |
| 70 | |
| 71 initVariables(artifact); | |
| 72 | |
| 73 if (url == null || layer == null) { | |
| 74 // XXX I don't remember why 'srid', 'url' and 'layer' are member | |
| 75 // variables. I think the reason was buffering those values. | |
| 76 srid = getSrid(); | |
| 77 url = getUrl(); | |
| 78 layer = getLayer(); | |
| 79 } | |
| 80 | |
| 81 if (url == null || layer == null) { | |
| 82 logger.warn("No background layers currently configured:"); | |
| 83 logger.warn("... add config for WMS url: " + XPATH_WMS_URL); | |
| 84 logger.warn("... add config for WMS layer: " + XPATH_WMS_LAYER); | |
| 85 return null; | |
| 86 } | |
| 87 | |
| 88 WMSLayerFacet facet = new WMSLayerFacet( | |
| 89 0, | |
| 90 getFacetType(), | |
| 91 getTitle(meta), | |
| 92 ComputeType.INIT, | |
| 93 getID(), hash, | |
| 94 url); | |
| 95 | |
| 96 facet.addLayer(layer); | |
| 97 facet.setSrid(srid); | |
| 98 | |
| 99 facets.add(facet); | |
| 100 | |
| 101 return null; | |
| 102 } | |
| 103 | |
| 104 | |
| 105 protected Document getConfig() { | |
| 106 if (cfg == null) { | |
| 107 cfg = Config.getConfig(); | |
| 108 } | |
| 109 | |
| 110 return cfg; | |
| 111 } | |
| 112 | |
| 113 | |
| 114 protected void initVariables(FLYSArtifact artifact) { | |
| 115 String river = artifact.getDataAsString("river"); | |
| 116 | |
| 117 variables = new HashMap<String, String>(); | |
| 118 variables.put("name", river); | |
| 119 } | |
| 120 | |
| 121 | |
| 122 protected String getFacetType() { | |
| 123 return FLOODMAP_WMSBACKGROUND; | |
| 124 } | |
| 125 | |
| 126 | |
| 127 protected String getSrid() { | |
| 128 return (String) XMLUtils.xpath( | |
| 129 getConfig(), | |
| 130 XPATH_SRID, | |
| 131 XPathConstants.STRING, | |
| 132 null, | |
| 133 variables); | |
| 134 } | |
| 135 | |
| 136 | |
| 137 protected String getUrl() { | |
| 138 return (String) XMLUtils.xpath( | |
| 139 getConfig(), | |
| 140 XPATH_WMS_URL, | |
| 141 XPathConstants.STRING, | |
| 142 null, | |
| 143 variables); | |
| 144 } | |
| 145 | |
| 146 | |
| 147 protected String getLayer() { | |
| 148 return (String) XMLUtils.xpath( | |
| 149 getConfig(), | |
| 150 XPATH_WMS_LAYER, | |
| 151 XPathConstants.STRING, | |
| 152 null, | |
| 153 variables); | |
| 154 } | |
| 155 | |
| 156 | |
| 157 protected String getTitle(CallMeta meta) { | |
| 158 return Resources.getMsg(meta, I18N_DESCRIPTION, I18N_DESCRIPTION); | |
| 159 } | |
| 160 } | |
| 161 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |