/*
* Copyright 2014 The original authors
*
* 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 org.vaadin.spring.servlet;
import com.vaadin.server.ServiceException;
import com.vaadin.server.SessionInitEvent;
import com.vaadin.server.SessionInitListener;
import com.vaadin.server.VaadinServlet;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import javax.servlet.ServletException;
/**
* Subclass of the standard {@link com.vaadin.server.VaadinServlet Vaadin servlet} that adds a {@link SpringAwareUIProvider} to
* every new Vaadin session.
* <p>
* If you need a custom Vaadin servlet, you can either extend this servlet directly, or extend another subclass of {@link VaadinServlet}
* and just add the UI provider.
*
* @author Petter Holmström (petter@vaadin.com)
* @author Josh Long (josh@joshlong.com)
*/
public class SpringAwareVaadinServlet extends VaadinServlet {
@Override
protected void servletInitialized() throws ServletException {
getService().addSessionInitListener(new SessionInitListener() {
@Override
public void sessionInit(SessionInitEvent sessionInitEvent) throws ServiceException {
WebApplicationContext webApplicationContext = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
SpringAwareUIProvider uiProvider = new SpringAwareUIProvider(webApplicationContext);
sessionInitEvent.getSession().addUIProvider(uiProvider);
}
});
}
}