1 files changed, 77 insertions, 0 deletions
diff --git a/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/javabean/ValueConvertorRegister.java b/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/javabean/ValueConvertorRegister.java
new file mode 100644
index 00000000000..5437fba9c2c
--- /dev/null
+++ b/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/javabean/ValueConvertorRegister.java
@@ -0,0 +1,77 @@
+/*******************************************************************************
+ * Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are 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:
+ *     Soyatec - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.papyrus.xwt.javabean;
+
+import java.util.HashMap;
+
+import org.eclipse.core.databinding.conversion.IConverter;
+
+public class ValueConvertorRegister {
+
+	static protected HashMap<Class<?>, HashMap<Class<?>, IConverter>> register = new HashMap<Class<?>, HashMap<Class<?>, IConverter>>();
+
+	public void register(Class<?> source, Class<?> target, IConverter converter) {
+		HashMap<Class<?>, IConverter> convertors = register.get(source);
+		if(convertors == null) {
+			convertors = new HashMap<Class<?>, IConverter>();
+			register.put(source, convertors);
+		}
+		convertors.put(target, converter);
+	}
+
+	public IConverter findConverter(Class<?> source, Class<?> target) {
+		HashMap<Class<?>, IConverter> convertors = register.get(source);
+		if(convertors == null) {
+			if(source.isEnum()) {
+				convertors = register.get(Enum.class);
+				if(convertors == null) {
+					return null;
+				}
+			} else {
+				Class<?>[] interfacees = source.getInterfaces();
+				for(Class<?> class1 : interfacees) {
+					IConverter converter = findConverter(class1, target);
+					if(converter != null) {
+						return converter;
+					}
+				}
+				Class<?> superclass = source.getSuperclass();
+				if(superclass != null) {
+					IConverter converter = findConverter(superclass, target);
+					if(converter != null) {
+						return converter;
+					}
+				}
+				return null;
+			}
+		}
+		return findConverter(convertors, target);
+	}
+
+	private IConverter findConverter(HashMap<Class<?>, IConverter> convertors, Class<?> current) {
+		IConverter converter = convertors.get(current);
+		if(converter == null) {
+			if(current.isEnum()) {
+				converter = convertors.get(Enum.class);
+			}
+		}
+		if(converter == null) {
+			Class<?> superclass = current.getSuperclass();
+			if(superclass == null && current != Object.class) {
+				superclass = Object.class;
+			}
+			if(superclass != null) {
+				converter = findConverter(convertors, superclass);
+			}
+		}
+		return converter;
+	}
+}