com.vaadin.server.DefaultUIProvider Maven / Gradle / Ivy
/*
* Copyright 2000-2014 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.server;
import com.vaadin.ui.UI;
public class DefaultUIProvider extends UIProvider {
@Override
public Class getUIClass(UIClassSelectionEvent event) {
VaadinRequest request = event.getRequest();
String uiClassName = request.getService().getDeploymentConfiguration()
.getUIClassName();
if (uiClassName != null) {
ClassLoader classLoader = request.getService().getClassLoader();
try {
Class uiClass = Class.forName(uiClassName, true,
classLoader).asSubclass(UI.class);
return uiClass;
} catch (ClassNotFoundException e) {
throw new RuntimeException("Could not find UI class", e);
}
}
return null;
}
}