--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/context/RiverContext.java	Sun Apr 28 15:14:30 2013 +0200
@@ -0,0 +1,124 @@
+/* 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.context;
+
+import java.util.Map;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+
+import org.dive4elements.artifactdatabase.DefaultArtifactContext;
+import org.dive4elements.artifacts.CallContext;
+import org.dive4elements.river.exports.OutGenerator;
+
+
+/**
+ * This class is used to store application wide information in a global context.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class RiverContext extends DefaultArtifactContext {
+
+    /** The logger used in this class. */
+    private static Logger logger = Logger.getLogger(RiverContext.class);
+
+    /** The key that is used to store the StateEngine in the context. */
+    public static final String ARTIFACT_KEY =
+        "artifact";
+
+    /** The key that is used to store the TransitionEngine in the context. */
+    public static final String TRANSITION_ENGINE_KEY =
+        "artifact.transition.engine";
+
+    /** The key that is used to store the StateEngine in the context. */
+    public static final String STATE_ENGINE_KEY =
+        "artifact.state.engine";
+
+    /** The key that is used to store the Map of OutGenerator classes in the
+     * context. */
+    public static final String OUTGENERATORS_KEY =
+        "flys.export.outgenerators";
+
+    /** The key that is used to store the map of themes in the context. */
+    public static final String THEMES =
+        "flys.themes.map";
+
+    /** The key that is used to store a map of theme mappings in the context. */
+    public static final String THEME_MAPPING =
+        "flys.themes.mapping.map";
+
+    /** The key that is used to store a map of WMS urls for each river. */
+    public static final String RIVER_WMS =
+        "flys.floodmap.river.wms";
+
+    /** The key that is used to store an instance of Scheduler in the context.*/
+    public static final String SCHEDULER =
+        "flys.wsplgen.scheduler";
+
+    /** Key to store the configured modules in the context. */
+    public static final String MODULES = "flys.modules";
+
+
+    /**
+     * The default constructor.
+     */
+    public RiverContext() {
+        super();
+    }
+
+
+    /**
+     * A constructor with a config document.
+     */
+    public RiverContext(Document config) {
+        super(config);
+    }
+
+    /**
+     * Returns the OutGenerator for a specified <i>type</i>.
+     *
+     * @param name The name of the output type.
+     * @param type Defines the type of the desired OutGenerator.
+     *
+     * @return Instance of an OutGenerator for specified <i>type</i>.
+     */
+    public static OutGenerator getOutGenerator(
+        CallContext context,
+        String      name,
+        String      type)
+    {
+
+        RiverContext flysContext = context instanceof RiverContext
+            ? (RiverContext) context
+            : (RiverContext) context.globalContext();
+
+        Map<String, Class> generators = (Map<String, Class>)
+            flysContext.get(RiverContext.OUTGENERATORS_KEY);
+
+        if (generators == null) {
+            return null;
+        }
+
+        Class clazz = generators.get(name);
+
+        try {
+            return clazz != null ? (OutGenerator) clazz.newInstance() : null;
+        }
+        catch (InstantiationException ie) {
+            logger.error(ie, ie);
+        }
+        catch (IllegalAccessException iae) {
+            logger.error(iae, iae);
+        }
+
+        return null;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :