1 files changed, 143 insertions, 0 deletions
diff --git a/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/internal/utils/ClassLoaderUtil.java b/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/internal/utils/ClassLoaderUtil.java
new file mode 100644
index 00000000000..577d6f4c2a0
--- /dev/null
+++ b/plugins/xwt/org.eclipse.papyrus.xwt/src/org/eclipse/papyrus/xwt/internal/utils/ClassLoaderUtil.java
@@ -0,0 +1,143 @@
+/*******************************************************************************
+ * 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.internal.utils;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+
+import org.eclipse.papyrus.xwt.IConstants;
+import org.eclipse.papyrus.xwt.ILoadingContext;
+import org.eclipse.papyrus.xwt.internal.xml.DocumentObject;
+import org.eclipse.papyrus.xwt.internal.xml.Element;
+
+public class ClassLoaderUtil {
+
+	static final String[] DefaultPackages = new String[]{
+	/*
+	 * UIElement.class.getPackage().getName(), Validation.class.getPackage().getName(), Timeline.class.getPackage().getName(),
+	 * Binding.class.getPackage().getName(),
+	 */};
+
+	static public Class<?> loadClass(ILoadingContext loadingContext, String className) {
+		Class<?> type = doLoadClass(loadingContext, className);
+		if(type != null) {
+			return type;
+		}
+		int index = className.indexOf('.');
+		if(index == -1) {
+			for(String packageName : DefaultPackages) {
+				type = doLoadClass(loadingContext, packageName + "." + className);
+				if(type != null) {
+					return type;
+				}
+			}
+		}
+		return null;
+	}
+
+	private static Class<?> doLoadClass(ILoadingContext loadingContext, String className) {
+		Class<?> type = loadingContext.loadClass(className);
+		if(type != null) {
+			return type;
+		}
+		try {
+			return Class.forName(className);
+		} catch (ClassNotFoundException e1) {
+		}
+		return null;
+	}
+
+	static public Object loadMember(ILoadingContext loadingContext, String className, String memberName, boolean raiseException) {
+		Class<?> type = loadClass(loadingContext, className);
+		return loadMember(loadingContext, type, memberName, raiseException);
+	}
+
+	static public Object loadMember(ILoadingContext loadingContext, Class<?> type, String memberName, boolean raiseException) {
+
+		try {
+			Field field = type.getField(memberName);
+			if(raiseException && !Modifier.isStatic(field.getModifiers())) {
+				throw new IllegalStateException(type.getName() + "." + memberName + " is not static member.");
+			}
+			return field.get(null);
+		} catch (Exception e) {
+			if(e instanceof NoSuchFieldException) {
+				Method method = ObjectUtil.findGetter(type, memberName, null);
+				if(raiseException && (method == null || !Modifier.isStatic(method.getModifiers()))) {
+					throw new IllegalStateException(type.getName() + "." + memberName + " is not static member.");
+				}
+				try {
+					return method.invoke(null);
+				} catch (Exception exception) {
+					e = exception;
+				}
+			}
+			if(raiseException) {
+				e.printStackTrace();
+				throw new IllegalStateException(e);
+			}
+		}
+		return null;
+	}
+
+	static public Object loadStaticMember(ILoadingContext loadingContext, Element element) {
+		String name = element.getName();
+		String namespace = element.getNamespace();
+		Object value = doLoadMember(loadingContext, name, namespace);
+		if(value != null) {
+			return value;
+		}
+		String content = element.getContent();
+		if(content == null) {
+			DocumentObject member = element.getAttribute(IConstants.XWT_NAMESPACE, IConstants.XAML_X_STATIC_MEMBER);
+			if(member == null) {
+				member = element;
+			}
+			if(member != null) {
+				content = member.getContent();
+				if(content == null) {
+					for(DocumentObject documentObject : member.getChildren()) {
+						String ns = documentObject.getNamespace();
+						String n = documentObject.getName();
+						return doLoadMember(loadingContext, n, ns);
+					}
+				}
+			}
+		} else {
+			if(IConstants.XAML_X_STATIC.equals(name) && IConstants.XWT_X_NAMESPACE.equals(namespace)) {
+				namespace = IConstants.XWT_NAMESPACE;
+				return doLoadMember(loadingContext, content, namespace);
+			}
+		}
+		// TODO
+		return null;
+	}
+
+	protected static Object doLoadMember(ILoadingContext loadingContext, String name, String namespace) {
+		int lastIndex = name.lastIndexOf('.');
+		if(lastIndex == -1) {
+			throw new IllegalStateException("Separator '.' is missing in:" + name);
+		}
+		String className = name.substring(0, lastIndex);
+		String memberName = name.substring(lastIndex + 1);
+
+		try {
+			Class<?> type = NamespaceHelper.loadCLRClass(loadingContext, className, namespace);
+			if(type != null) {
+				return ClassLoaderUtil.loadMember(loadingContext, type, memberName, true);
+			}
+		} catch (ClassNotFoundException e) {
+			throw new RuntimeException(e);
+		}
+		return null;
+	}
+}