1 files changed, 66 insertions, 0 deletions
diff --git a/orkbasej/java/net/sf/oreka/OrkObjectFactory.java b/orkbasej/java/net/sf/oreka/OrkObjectFactory.java
new file mode 100644
index 0000000..79c2734
--- /dev/null
+++ b/orkbasej/java/net/sf/oreka/OrkObjectFactory.java
@@ -0,0 +1,66 @@
+/*
+ * Oreka -- A media capture and retrieval platform
+ * 
+ * Copyright (C) 2005, orecx LLC
+ *
+ * http://www.orecx.com
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License.
+ * Please refer to http://www.gnu.org/copyleft/gpl.html
+ *
+ */
+
+package net.sf.oreka;
+/** 
+ * The ObjectFactory can be used to instanciate Objects based on class name.
+ * All existing Objects must be registered to the ObjectFactory at startup.
+ */
+public class OrkObjectFactory {
+
+	static OrkObjectFactory instance = null;
+	java.util.HashMap<String, OrkObject> classes;
+	
+	private OrkObjectFactory()
+	{
+		classes = new java.util.HashMap<String, OrkObject>();
+	}
+	
+	public static OrkObjectFactory instance()
+	{
+		if(instance == null)
+		{
+			instance = new OrkObjectFactory();
+		}
+		return instance;
+	}
+	
+	public OrkObject newOrkObject(String className) throws OrkException
+	{
+		className = className.toLowerCase();
+		OrkObject classObject = classes.get(className);
+		OrkObject newInstance = null;
+		if(classObject != null)
+		{
+			try
+			{
+				newInstance = classObject.getClass().newInstance();
+			}
+			catch (Exception e) 
+			{
+				throw new OrkException("OrkObjectFactory: Could not instanciate:" + className);
+			}
+		}
+		else
+		{
+			throw new OrkException("OrkObjectFactory: class does not exist:" + className);
+		}
+		return newInstance;
+	}
+	
+	public void registerOrkObject(OrkObject object)
+	{
+		classes.put(object.getOrkClassName(), object);
+	}
+
+}