--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifact-database/src/main/java/org/dive4elements/artifactdatabase/DefaultServiceFactory.java	Thu Apr 25 10:57:18 2013 +0200
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2010 by Intevation GmbH
+ *
+ * This program is free software under the LGPL (>=v2.1)
+ * Read the file LGPL.txt coming with the software for details
+ * or visit http://www.gnu.org/licenses/ if it does not exist.
+ */
+
+package de.intevation.artifactdatabase;
+
+import de.intevation.artifacts.common.utils.Config;
+
+import de.intevation.artifacts.Service;
+import de.intevation.artifacts.GlobalContext;
+import de.intevation.artifacts.ServiceFactory;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+
+/**
+ * Trivial implementation of the ServiceFactory interface.
+ * Name and an description are configured by the given Node given to
+ * #setup(Document, Node) via the 'name' and 'description' attributes.
+ * The name of the class that provides the concrete serice is configured
+ * by the 'service' attribute.
+ *
+ * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
+ */
+public class DefaultServiceFactory
+implements   ServiceFactory
+{
+    private static Logger logger =
+        Logger.getLogger(DefaultServiceFactory.class);
+
+    /**
+     * XPath to access the name of the service.
+     */
+    public static final String XPATH_NAME        = "@name";
+    /**
+     * XPath to access the description of the service.
+     */
+    public static final String XPATH_DESCRIPTION = "@description";
+    /**
+     * XPath to access the class name of the service to be build by
+     * this factory.
+     */
+    public static final String XPATH_SERVICE     = "@service";
+
+    /**
+     * Default description if no description is given in configuration.
+     */
+    public static final String DEFAULT_DESCRIPTION =
+        "No description available";
+
+    /**
+     * Loaded service class if no class name is given in the configuration.
+     */
+    public static final String DEFAULT_SERVICE =
+        "de.intevation.artifactdatabase.DefaultService";
+
+    /**
+     * The name of the service factory.
+     */
+    protected String name;
+
+    /**
+     * The description of the service factory.
+     */
+    protected String description;
+
+    /**
+     * The loaded class used to build the concrete service.
+     */
+    protected Class  serviceClass;
+
+    /**
+     * Default constructor.
+     */
+    public DefaultServiceFactory() {
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public String getDescription() {
+        return description;
+    }
+
+    @Override
+    public Service createService(GlobalContext globalContext) {
+        try {
+            Service service = (Service)serviceClass.newInstance();
+
+            service.setup(this, globalContext);
+
+            return service;
+        }
+        catch (InstantiationException ie) {
+            logger.error(ie.getLocalizedMessage(), ie);
+        }
+        catch (IllegalAccessException iae) {
+            logger.error(iae.getLocalizedMessage(), iae);
+        }
+        catch (ClassCastException cce) {
+            logger.error(cce.getLocalizedMessage(), cce);
+        }
+
+        return null;
+    }
+
+    @Override
+    public void setup(Document config, Node factoryNode) {
+
+        description = Config.getStringXPath(
+            factoryNode, XPATH_DESCRIPTION, DEFAULT_DESCRIPTION);
+
+        name = Config.getStringXPath(
+            factoryNode, XPATH_NAME, toString());
+
+        String service = Config.getStringXPath(
+            factoryNode, XPATH_SERVICE, DEFAULT_SERVICE);
+
+        try {
+            serviceClass = Class.forName(service);
+        }
+        catch (ClassNotFoundException cnfe) {
+            logger.error(cnfe.getLocalizedMessage(), cnfe);
+        }
+
+        if (serviceClass == null) {
+            serviceClass = DefaultService.class;
+        }
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :