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- /*
- * 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;
- }
- }
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