--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/utils/MetaWriter.java	Fri Mar 05 07:18:52 2010 +0000
@@ -0,0 +1,203 @@
+package de.intevation.gnv.utils;
+
+import de.intevation.artifacts.ArtifactNamespaceContext;
+import de.intevation.artifacts.CallContext;
+
+import de.intevation.artifactdatabase.XMLUtils;
+
+import de.intevation.gnv.artifacts.context.GNVArtifactContext;
+import de.intevation.gnv.wms.LayerInfo;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+/**
+ * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
+ */
+public class MetaWriter {
+
+    private static Logger logger = Logger.getLogger(MetaWriter.class);
+
+    public static final String NODE_MAPSERVER = "mapserver";
+    public static final String NODE_SERVER    = "server";
+    public static final String NODE_MAP       = "map";
+
+    public static final String META_FILE_NAME = "meta.xml";
+    public static final String ISOLINES_NAME  = "isolines.shp";
+    public static final String POLYGON_NAME   = "polygons.shp";
+
+    private MetaWriter() {
+    }
+
+    public static Document writeHorizontalcrosssectionMeta(
+        CallContext context,
+        String      uuid,
+        String      path,
+        String      paramType)
+    {
+        Document meta = XMLUtils.newDocument();
+        XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
+            meta,
+            ArtifactNamespaceContext.NAMESPACE_URI,
+            ArtifactNamespaceContext.NAMESPACE_PREFIX);
+
+        Element root = creator.create("meta");
+        meta.appendChild(root);
+
+        writeAbstractMeta(context, meta, root);
+        writePolygonMeta(context, meta, root, uuid, path, paramType);
+        writeIsolineMeta(context, meta, root, uuid, path, paramType);
+
+        try {
+            File metaFile = new File(path, META_FILE_NAME);
+
+            if (!metaFile.createNewFile() || !metaFile.canWrite()) {
+                logger.error("Error while writing meta file: "+metaFile.toString());
+                return null;
+            }
+
+            OutputStream out = null;
+            boolean success = false;
+            try {
+                out = new FileOutputStream(metaFile);
+                success = XMLUtils.toStream(meta, out);
+            }
+            finally {
+                if (out != null) {
+                    try { out.close(); }
+                    catch (IOException ioe) {}
+                }
+            }
+
+            if (!success && metaFile.exists()) {
+                metaFile.delete();
+            }
+
+            return success ? meta : null;
+        }
+        catch (FileNotFoundException fnfe) {
+            logger.error(fnfe);
+        }
+        catch (IOException ioe) {
+            logger.error(ioe, ioe);
+        }
+
+        return meta;
+    }
+
+
+    public static void writeAbstractMeta(
+        CallContext callContext,
+        Document    document,
+        Element     meta
+    ) {
+        XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
+            document,
+            ArtifactNamespaceContext.NAMESPACE_URI,
+            ArtifactNamespaceContext.NAMESPACE_PREFIX);
+
+        GNVArtifactContext context =
+            (GNVArtifactContext) callContext.globalContext();
+
+        String server = (String)
+            context.get(GNVArtifactContext.MAPSERVER_SERVER_PATH_KEY);
+
+        String map = (String)
+            context.get(GNVArtifactContext.MAPSERVER_MAP_PATH_KEY);
+
+        logger.debug("MAPSERVER PATH: " + server);
+        logger.debug("MAP PATH: " + map);
+
+        Element mapserver  = creator.create(NODE_MAPSERVER);
+        Element serverPath = creator.create(NODE_SERVER);
+        Element mapPath    = creator.create(NODE_MAP);
+
+        mapPath.setTextContent(map);
+        serverPath.setTextContent(server);
+
+        mapserver.appendChild(serverPath);
+        mapserver.appendChild(mapPath);
+        meta.appendChild(mapserver);
+    }
+
+
+    public static void writePolygonMeta(
+        CallContext context,
+        Document    document,
+        Element     meta,
+        String      uuid,
+        String      path,
+        String      paramType
+    ) {
+        XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
+            document,
+            ArtifactNamespaceContext.NAMESPACE_URI,
+            ArtifactNamespaceContext.NAMESPACE_PREFIX);
+
+        Element layer  = creator.create(LayerInfo.LAYER);
+        Element model  = creator.create(LayerInfo.LAYER_MODEL);
+        Element name   = creator.create(LayerInfo.LAYER_NAME);
+        Element type   = creator.create(LayerInfo.LAYER_TYPE);
+        Element status = creator.create(LayerInfo.LAYER_STATUS);
+        Element data   = creator.create(LayerInfo.LAYER_DATA);
+
+        model.setTextContent(paramType);
+        name.setTextContent(uuid);
+        type.setTextContent("POLYGON");
+        status.setTextContent("DEFAULT");
+        data.setTextContent(POLYGON_NAME);
+
+        layer.appendChild(model);
+        layer.appendChild(name);
+        layer.appendChild(type);
+        layer.appendChild(status);
+        layer.appendChild(data);
+
+        meta.appendChild(layer);
+    }
+
+
+    public static void writeIsolineMeta(
+        CallContext context,
+        Document    document,
+        Element     meta,
+        String      uuid,
+        String      path,
+        String      paramType
+    ) {
+        XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
+            document,
+            ArtifactNamespaceContext.NAMESPACE_URI,
+            ArtifactNamespaceContext.NAMESPACE_PREFIX);
+
+        Element layer  = creator.create(LayerInfo.LAYER);
+        Element model  = creator.create(LayerInfo.LAYER_MODEL);
+        Element name   = creator.create(LayerInfo.LAYER_NAME);
+        Element type   = creator.create(LayerInfo.LAYER_TYPE);
+        Element status = creator.create(LayerInfo.LAYER_STATUS);
+        Element data   = creator.create(LayerInfo.LAYER_DATA);
+
+        model.setTextContent(paramType+"_isolines");
+        name.setTextContent(uuid);
+        type.setTextContent("LINE");
+        status.setTextContent("DEFAULT");
+        data.setTextContent(ISOLINES_NAME);
+
+        layer.appendChild(model);
+        layer.appendChild(name);
+        layer.appendChild(type);
+        layer.appendChild(status);
+        layer.appendChild(data);
+
+        meta.appendChild(layer);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :