1 files changed, 70 insertions, 0 deletions
diff --git a/plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/utils/JavaReflectionUtil.java b/plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/utils/JavaReflectionUtil.java
new file mode 100644
index 00000000..a28ebf23
--- /dev/null
+++ b/plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/utils/JavaReflectionUtil.java
@@ -0,0 +1,70 @@
+/*******************************************************************************
+ * Copyright (c) 2011, 2012 Red Hat, Inc.
+ *  All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ *
+ * @author Bob Brodt
+ ******************************************************************************/
+
+package org.eclipse.bpmn2.modeler.core.utils;
+
+import org.eclipse.core.internal.registry.osgi.OSGIUtils;
+import org.osgi.framework.Bundle;
+
+/**
+ * As the name implies, this is a static class of java reflection utilities
+ * @author Bob Brodt
+ */
+public class JavaReflectionUtil {
+	
+	/**
+	 * Find the class with the given simple name in a package hierarchy.
+	 * The object is used as the starting point (deepest level)
+	 * and the search continues up the package hierarchy.
+	 * 
+	 * @param object - any object in a package
+	 * @param simpleName - simple (non-qualified) class name to search for
+	 * @return - the class or null if not found
+	 */
+	public static Class findClass(Object object, String simpleName) {
+		Class clazz = object.getClass();
+		do {
+			Class result = findClass(clazz, simpleName);
+			if (result!=null)
+				return result;
+			clazz = clazz.getSuperclass();
+		}
+		while (clazz!=null);
+		try {
+			// last resort: try the UI plugin, this is where the Messages class is defined
+			Bundle b = OSGIUtils.getDefault().getBundle("org.eclipse.bpmn2.modeler.ui"); //$NON-NLS-1$
+			clazz = b.loadClass("org.eclipse.bpmn2.modeler.ui.Messages"); //$NON-NLS-1$
+			Class result = findClass(clazz, simpleName);
+			if (result!=null)
+				return result;
+		} catch (Exception e) {
+		}
+		return null;
+	}
+	
+	public static Class findClass(Class clazz, String simpleName) {
+		ClassLoader cl = clazz.getClassLoader();
+		String packageName = clazz.getPackage().getName();
+		int index;
+		while ((index = packageName.lastIndexOf(".")) != -1) { //$NON-NLS-1$
+			String className = packageName + "." + simpleName;  //$NON-NLS-1$
+			try {
+				return Class.forName(className, true, cl);
+			} catch (ClassNotFoundException e) {
+			}
+			packageName = packageName.substring(0, index);
+		}
+		return null;
+		
+	}
+}