--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/state/StateFactory.java	Fri Sep 28 12:13:56 2012 +0200
@@ -0,0 +1,65 @@
+package de.intevation.gnv.state;
+
+import de.intevation.gnv.artifacts.GNVArtifactBase;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Node;
+
+/**
+ * This factory should be used to create new state objects with help of a
+ * configuration segment.
+ *
+ * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
+ *
+ */
+public class StateFactory {
+
+    /**
+     * the logger, used to log exceptions and additonaly information
+     */
+    private static Logger log = Logger.getLogger(GNVArtifactBase.class);
+
+    private static StateFactory instance = null;
+
+    /**
+     * Constructor
+     */
+    public StateFactory() {
+        super();
+    }
+
+    /**
+     * Return the instance of this class.
+     */
+    public static StateFactory getInstance() {
+        if (instance == null) {
+            instance = new StateFactory();
+        }
+        return instance;
+    }
+
+    /**
+     * This method creates a new state with help of the information in <i>
+     * configuration</i> and calls its setup method after creation.
+     *
+     * @return the new state.
+     */
+    public State createState(Node configuration) {
+        log.debug("StateFactory.createState");
+        State state = null;
+        try {
+            String classname = ((org.w3c.dom.Element)configuration).getAttribute("state");
+            state = (State) (Class.forName(classname).newInstance());
+            state.setup(configuration);
+        } catch (InstantiationException e) {
+            log.error(e, e);
+        } catch (IllegalAccessException e) {
+            log.error(e, e);
+        } catch (ClassNotFoundException e) {
+            log.error(e, e);
+        }
+        return state;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :