From e3b7a9c657a6a5f5a7a8f3c7ee4fdff1aee6410f Mon Sep 17 00:00:00 2001
From: "David A. Madore" <david@procyon.(none)>
Date: Tue, 13 Apr 2010 15:21:41 +0200
Subject: Framework for handling attributes.

---
 org/madore/damlengine/TodoElement.java | 55 ++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 org/madore/damlengine/TodoElement.java

(limited to 'org/madore/damlengine/TodoElement.java')

diff --git a/org/madore/damlengine/TodoElement.java b/org/madore/damlengine/TodoElement.java
new file mode 100644
index 0000000..f8eaeec
--- /dev/null
+++ b/org/madore/damlengine/TodoElement.java
@@ -0,0 +1,55 @@
+package org.madore.damlengine;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.InvocationTargetException;
+import java.util.Map;
+import java.util.HashMap;
+import org.w3c.dom.Element;
+
+public class TodoElement extends TodoItem {
+
+    protected static Map<String,Method> damlHandlers;
+    protected static Method defaultHandler;
+
+    {
+	Class[] handlerArgTypes = new Class[]{ TodoElement.class };
+	damlHandlers = new HashMap<String,Method>();
+	try {
+	    defaultHandler = DefaultHandler.class.getMethod("handle", handlerArgTypes);
+	} catch (NoSuchMethodException e) {
+	    // FIXME: this isn't good...
+	    throw new Error("this is impossible");
+	}
+    }
+
+    Element node;
+    Map<String,Object> context;
+    Map<String,Object> options;
+
+    public TodoElement(Element node, Map<String,Object> context, Map<String,Object> options) {
+	this.node = node;
+	this.context = context;
+	this.options = options;
+    }
+
+    public void dispatch() {
+	Method handler;
+	String nsuri = node.getNamespaceURI();
+	if ( nsuri != null && nsuri.equals(DamlEngine.DAML_NS) ) {
+	    handler = damlHandlers.get(node.getLocalName());
+	    if ( handler == null )
+		handler = defaultHandler;
+	} else
+	    handler = defaultHandler;
+	try {
+	    handler.invoke(null, new Object[]{this});
+	} catch (IllegalAccessException e) {
+	    // FIXME: this isn't good...
+	    throw new Error("this is impossible");
+	} catch (InvocationTargetException e) {
+	    // FIXME: this isn't good...
+	    throw new Error("this is impossible");
+	}
+    }
+
+}
-- 
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