Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/ExternalWMSArtifact.java @ 1926:fde3db5e68e8
Added a new Artifact to enable users to add external WMS layers to floodmaps.
flys-artifacts/trunk@3302 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Tue, 22 Nov 2011 20:04:46 +0000 |
| parents | |
| children | 8afd6a9bb244 |
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| 1925:01f2473e362d | 1926:fde3db5e68e8 |
|---|---|
| 1 package de.intevation.flys.artifacts; | |
| 2 | |
| 3 import java.util.ArrayList; | |
| 4 import java.util.List; | |
| 5 | |
| 6 import org.apache.log4j.Logger; | |
| 7 | |
| 8 import org.w3c.dom.Document; | |
| 9 | |
| 10 import de.intevation.artifacts.Artifact; | |
| 11 import de.intevation.artifacts.ArtifactFactory; | |
| 12 import de.intevation.artifacts.CallMeta; | |
| 13 | |
| 14 import de.intevation.artifacts.common.ArtifactNamespaceContext; | |
| 15 import de.intevation.artifacts.common.utils.XMLUtils; | |
| 16 | |
| 17 import de.intevation.artifactdatabase.data.DefaultStateData; | |
| 18 import de.intevation.artifactdatabase.state.DefaultOutput; | |
| 19 import de.intevation.artifactdatabase.state.Facet; | |
| 20 import de.intevation.artifactdatabase.state.State; | |
| 21 | |
| 22 import de.intevation.flys.artifacts.states.WMSBackgroundState; | |
| 23 | |
| 24 | |
| 25 public class ExternalWMSArtifact extends StaticFLYSArtifact { | |
| 26 | |
| 27 public static final String XPATH_IDS = "/art:action/art:ids/@value"; | |
| 28 | |
| 29 public static final String NAME = "external_wms"; | |
| 30 | |
| 31 private static final Logger logger = | |
| 32 Logger.getLogger(ExternalWMSArtifact.class); | |
| 33 | |
| 34 | |
| 35 @Override | |
| 36 public String getName() { | |
| 37 return NAME; | |
| 38 } | |
| 39 | |
| 40 | |
| 41 @Override | |
| 42 public void setup( | |
| 43 String identifier, | |
| 44 ArtifactFactory factory, | |
| 45 Object context, | |
| 46 CallMeta callMeta, | |
| 47 Document data) | |
| 48 { | |
| 49 logger.info("ExternalWMSArtifact.setup"); | |
| 50 | |
| 51 super.setup(identifier, factory, context, callMeta, data); | |
| 52 | |
| 53 String ids = XMLUtils.xpathString( | |
| 54 data, XPATH_IDS, ArtifactNamespaceContext.INSTANCE); | |
| 55 | |
| 56 if (ids != null && ids.length() > 0) { | |
| 57 addData("ids", new DefaultStateData("ids", null, null, ids)); | |
| 58 } | |
| 59 else { | |
| 60 throw new IllegalArgumentException("No attribute 'ids' found!"); | |
| 61 } | |
| 62 | |
| 63 List<Facet> fs = new ArrayList<Facet>(); | |
| 64 | |
| 65 WMSBackgroundState s = (WMSBackgroundState) getCurrentState(context); | |
| 66 s.computeInit(this, hash(), context, callMeta, fs); | |
| 67 | |
| 68 if (!fs.isEmpty()) { | |
| 69 facets.put(getCurrentStateId(), fs); | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 | |
| 74 @Override | |
| 75 protected void initialize( | |
| 76 Artifact artifact, | |
| 77 Object context, | |
| 78 CallMeta callMeta) | |
| 79 { | |
| 80 // do nothing | |
| 81 } | |
| 82 | |
| 83 | |
| 84 @Override | |
| 85 public State getCurrentState(Object cc) { | |
| 86 State s = new ExternalWMSState(this); | |
| 87 | |
| 88 List<Facet> fs = facets.get(getCurrentStateId()); | |
| 89 | |
| 90 DefaultOutput o = new DefaultOutput( | |
| 91 "floodmap", | |
| 92 "floodmap", | |
| 93 "image/png", | |
| 94 fs, | |
| 95 "map"); | |
| 96 | |
| 97 s.getOutputs().add(o); | |
| 98 | |
| 99 return s; | |
| 100 } | |
| 101 | |
| 102 | |
| 103 /** | |
| 104 * Get a list containing the one and only State. | |
| 105 * @param context ignored. | |
| 106 * @return list with one and only state. | |
| 107 */ | |
| 108 @Override | |
| 109 protected List<State> getStates(Object context) { | |
| 110 ArrayList<State> states = new ArrayList<State>(); | |
| 111 states.add(getCurrentState(context)); | |
| 112 | |
| 113 return states; | |
| 114 } | |
| 115 | |
| 116 | |
| 117 public static class ExternalWMSState extends WMSBackgroundState { | |
| 118 | |
| 119 protected ExternalWMSArtifact artifact; | |
| 120 | |
| 121 protected String ids; | |
| 122 | |
| 123 | |
| 124 public ExternalWMSState(ExternalWMSArtifact artifact) { | |
| 125 super(); | |
| 126 this.artifact = artifact; | |
| 127 } | |
| 128 | |
| 129 protected String getIds() { | |
| 130 if (ids == null || ids.length() == 0) { | |
| 131 ids = artifact.getDataAsString("ids"); | |
| 132 } | |
| 133 | |
| 134 return ids; | |
| 135 } | |
| 136 | |
| 137 @Override | |
| 138 protected String getFacetType() { | |
| 139 return FLOODMAP_EXTERNAL_WMS; | |
| 140 } | |
| 141 | |
| 142 @Override | |
| 143 protected String getSrid() { | |
| 144 return ""; | |
| 145 } | |
| 146 | |
| 147 @Override | |
| 148 protected String getUrl() { | |
| 149 String ids = getIds(); | |
| 150 String[] parts = ids.split(";"); | |
| 151 | |
| 152 return parts[0]; | |
| 153 } | |
| 154 | |
| 155 @Override | |
| 156 protected String getLayer() { | |
| 157 String ids = getIds(); | |
| 158 String[] parts = ids.split(";"); | |
| 159 | |
| 160 return parts[1]; | |
| 161 } | |
| 162 | |
| 163 @Override | |
| 164 protected String getTitle(CallMeta meta) { | |
| 165 String ids = getIds(); | |
| 166 String[] parts = ids.split(";"); | |
| 167 | |
| 168 return parts[2]; | |
| 169 } | |
| 170 } // end of class ExternalWMSState | |
| 171 } | |
| 172 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |