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- /*
- * Copyright 2000-2018 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.osgi.liferay;
-
- import org.osgi.framework.BundleContext;
- import org.osgi.framework.ServiceObjects;
- import org.osgi.service.component.annotations.Activate;
- import org.osgi.service.component.annotations.Component;
- import org.osgi.service.component.annotations.Deactivate;
- import org.osgi.service.component.annotations.Reference;
- import org.osgi.service.component.annotations.ReferenceCardinality;
- import org.osgi.service.log.LogService;
- import org.osgi.util.tracker.ServiceTracker;
-
- import com.vaadin.osgi.resources.VaadinResourceService;
- import com.vaadin.ui.UI;
-
- /**
- * Initializes a service tracker with {@link PortletUIServiceTrackerCustomizer}
- * to track {@link UI} service registrations.
- * <p>
- * This only applies to Liferay Portal 7+ with OSGi support.
- *
- * @author Sampsa Sohlman
- *
- * @since 8.1
- */
- @Component
- public class VaadinPortletProvider {
-
- private ServiceTracker<UI, ServiceObjects<UI>> serviceTracker;
- private PortletUIServiceTrackerCustomizer portletUIServiceTrackerCustomizer;
- private VaadinResourceService vaadinService;
- private LogService logService;
-
- @Activate
- void activate(BundleContext bundleContext) throws Exception {
- portletUIServiceTrackerCustomizer = new PortletUIServiceTrackerCustomizer(
- vaadinService, logService);
- serviceTracker = new ServiceTracker<UI, ServiceObjects<UI>>(
- bundleContext, UI.class, portletUIServiceTrackerCustomizer);
- serviceTracker.open();
- }
-
- @Reference
- void setVaadinResourceService(VaadinResourceService vaadinService) {
- this.vaadinService = vaadinService;
- }
-
- void unsetVaadinResourceService(VaadinResourceService vaadinService) {
- if(this.vaadinService == vaadinService) {
- this.vaadinService = null;
- }
- }
-
- @Reference(cardinality = ReferenceCardinality.OPTIONAL)
- void setLogService(LogService logService) {
- this.logService = logService;
- }
-
- void unsetLogService(LogService logService) {
- if(this.logService == logService) {
- this.logService = null;
- }
- }
-
- @Deactivate
- void deactivate() {
- if (serviceTracker != null) {
- serviceTracker.close();
- portletUIServiceTrackerCustomizer.cleanPortletRegistrations();
- portletUIServiceTrackerCustomizer = null;
- }
- }
- }
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