/*
* Copyright 2000-2016 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 javax.portlet.PortletConfig;
import javax.portlet.PortletException;
import javax.portlet.PortletRequest;
public class LegacyVaadinPortlet extends VaadinPortlet {
private static final LegacyApplicationUIProvider provider = new LegacyApplicationUIProvider() {
@Override
protected LegacyApplication createApplication() {
VaadinPortlet portlet = VaadinPortlet.getCurrent();
if (portlet instanceof LegacyVaadinPortlet) {
LegacyVaadinPortlet legacyPortlet = (LegacyVaadinPortlet) portlet;
PortletRequest request = VaadinPortletService
.getCurrentPortletRequest();
if (legacyPortlet.shouldCreateApplication(request)) {
try {
return legacyPortlet.getNewApplication(request);
} catch (PortletException e) {
throw new RuntimeException(e);
}
}
}
return null;
}
};
@Override
public void init(PortletConfig portletConfig) throws PortletException {
super.init(portletConfig);
getService().addSessionInitListener((SessionInitEvent event) -> {
try {
onVaadinSessionStarted(
(VaadinPortletRequest) event.getRequest(),
(VaadinPortletSession) event.getSession());
} catch (PortletException e) {
throw new ServiceException(e);
}
});
}
protected Class<? extends LegacyApplication> getApplicationClass()
throws ClassNotFoundException {
try {
return ServletPortletHelper.getLegacyApplicationClass(getService());
} catch (ServiceException e) {
throw new RuntimeException(e);
}
}
protected LegacyApplication getNewApplication(PortletRequest request)
throws PortletException {
try {
Class<? extends LegacyApplication> applicationClass = getApplicationClass();
return applicationClass.newInstance();
} catch (Exception e) {
throw new PortletException(e);
}
}
private void onVaadinSessionStarted(VaadinPortletRequest request,
VaadinPortletSession session) throws PortletException {
session.addUIProvider(provider);
}
protected boolean shouldCreateApplication(PortletRequest request) {
return true;
}
}