--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/FactoryBootstrap.java	Fri Sep 04 12:04:12 2009 +0000
@@ -0,0 +1,116 @@
+package de.intevation.artifactdatabase;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.NodeList;
+
+import java.util.ArrayList;
+
+import de.intevation.artifacts.ArtifactFactory;
+import de.intevation.artifacts.ArtifactContextFactory;
+
+/**
+ * Bootstrap facility for the global context and the artifact factories.
+ *
+ * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
+ */
+public class FactoryBootstrap
+{
+    public static final String CONTEXT_FACTORY =
+        "/artifact-database/factories/context-factory/text()";
+
+    public static final String DEFAULT_CONTEXT_FACTORY =
+        "de.intevation.artifactdatabase.DefaultArtifactContextFactory";
+
+    public static final String ARTIFACT_FACTORIES =
+        "/artifact-database/factories/artifact-factories/artifact-factory/text()";
+
+    protected Object context;
+
+    protected ArtifactFactory [] artifactFactories;
+
+    public FactoryBootstrap() {
+    }
+
+    void buildContext() {
+        String className = Config.getStringXPath(
+            CONTEXT_FACTORY, DEFAULT_CONTEXT_FACTORY);
+
+        ArtifactContextFactory factory = null;
+
+        try {
+            Class clazz = Class.forName(className);
+            factory = (ArtifactContextFactory)clazz.newInstance();
+        }
+        catch (ClassNotFoundException cnfe) {
+            cnfe.printStackTrace(System.err);
+        }
+        catch (InstantiationException ie) {
+            ie.printStackTrace(System.err);
+        }
+        catch (ClassCastException cce) {
+            cce.printStackTrace(System.err);
+        }
+        catch (IllegalAccessException iae) {
+            iae.printStackTrace(System.err);
+        }
+
+        if (factory == null) {
+            factory = new DefaultArtifactContextFactory();
+        }
+
+        context = factory.createArtifactContext(Config.getConfig());
+    }
+
+    protected void loadArtifactFactories() {
+        ArrayList loadedFactories = new ArrayList();
+
+        NodeList nodes = Config.getNodeSetXPath(ARTIFACT_FACTORIES);
+
+        Document config = Config.getConfig();
+
+        for (int i = 0, N = nodes.getLength(); i < N; ++i) {
+            String className = nodes.item(i).getTextContent();
+
+            ArtifactFactory factory = null;
+
+            try {
+                Class clazz = Class.forName(className);
+                factory = (ArtifactFactory)clazz.newInstance();
+            }
+            catch (ClassNotFoundException cnfe) {
+                cnfe.printStackTrace(System.err);
+            }
+            catch (InstantiationException ie) {
+                ie.printStackTrace(System.err);
+            }
+            catch (ClassCastException cce) {
+                cce.printStackTrace(System.err);
+            }
+            catch (IllegalAccessException iae) {
+                iae.printStackTrace(System.err);
+            }
+
+            if (factory != null) {
+                factory.setup(config);
+                loadedFactories.add(factory);
+            }
+        }
+
+        artifactFactories = (ArtifactFactory [])loadedFactories.toArray(
+            new ArtifactFactory[loadedFactories.size()]);
+    }
+
+    public void boot() {
+        buildContext();
+        loadArtifactFactories();
+    }
+
+    public ArtifactFactory [] getArtifactFactories() {
+        return artifactFactories;
+    }
+
+    public Object getContext() {
+        return context;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: