1 files changed, 84 insertions, 0 deletions
diff --git a/plugins/infra/constraints/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/util/ClassLoader.java b/plugins/infra/constraints/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/util/ClassLoader.java
new file mode 100644
index 00000000000..ab0ad2832d0
--- /dev/null
+++ b/plugins/infra/constraints/org.eclipse.papyrus.infra.constraints/src/org/eclipse/papyrus/infra/constraints/util/ClassLoader.java
@@ -0,0 +1,84 @@
+/*****************************************************************************
+ * Copyright (c) 2010 CEA LIST.
+ *
+ * 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:
+ *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
+ *****************************************************************************/
+package org.eclipse.papyrus.infra.constraints.util;
+
+import org.eclipse.papyrus.infra.constraints.Activator;
+
+/**
+ * A Helper class for Class Loading.
+ *
+ * @author Camille Letavernier
+ */
+public class ClassLoader {
+
+	/**
+	 * Loads the class matching the given className. Exceptions are caught and sent
+	 * to the Logger.
+	 *
+	 * @param className
+	 *            The qualified name of the Class to load.
+	 * @return
+	 *         The loaded Class, or null if an error occured
+	 */
+	public Class<?> loadClass(String className) {
+		try {
+			Class<?> clazz = Activator.getDefault().getBundle().loadClass(className);
+			return clazz;
+		} catch (ClassNotFoundException ex) {
+			Activator.log.error("Cannot load class " + className, ex); //$NON-NLS-1$
+		} catch (ClassCastException ex) {
+			Activator.log.error("Cannot load class " + className, ex); //$NON-NLS-1$
+		} catch (NullPointerException ex) {
+			Activator.log.error("Cannot load class " + className, ex); //$NON-NLS-1$
+		}
+
+		return null;
+	}
+
+	/**
+	 * Returns a new Instance of the given class
+	 *
+	 * @param className
+	 *            The qualified name of the Class to instantiate
+	 * @return
+	 *         A new instance of the given class, or null if the class couldn't be
+	 *         instantiated
+	 */
+	public Object newInstance(String className) {
+		return newInstance(loadClass(className));
+	}
+
+	/**
+	 * Returns a new Instance of the given class
+	 *
+	 * @param theClass
+	 *            The Class to instantiate
+	 * @return
+	 *         A new instance of the given class, or null if the class couldn't be
+	 *         instantiated
+	 */
+	public <T extends Object> T newInstance(Class<T> theClass) {
+		if (theClass == null) {
+			return null;
+		}
+
+		try {
+			return theClass.newInstance();
+		} catch (IllegalAccessException ex) {
+			Activator.log.error(ex);
+		} catch (InstantiationException ex) {
+			Activator.log.error(ex);
+		}
+
+		return null;
+	}
+}