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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.osgi.resources;
-
- import org.osgi.framework.BundleActivator;
- import org.osgi.framework.BundleContext;
- import org.osgi.framework.Version;
-
- import com.vaadin.osgi.resources.impl.VaadinResourceServiceImpl;
-
- /**
- * {@link BundleActivator} used to provide access to the
- * {@link VaadinResourceService} singleton for publishing themes, widgetsets and
- * other necessary resources.
- *
- * @author Vaadin Ltd.
- *
- * @since 8.1
- */
- public class OSGiVaadinResources implements BundleActivator {
-
- /**
- * Thrown if a method is called when the Resource bundle is not active.
- *
- * @author Vaadin Ltd.
- *
- * @since 8.1
- */
- @SuppressWarnings("serial")
- public static class ResourceBundleInactiveException extends Exception {
- public ResourceBundleInactiveException(String message) {
- super(message);
- }
- }
-
- private static OSGiVaadinResources instance;
-
- private VaadinResourceServiceImpl service;
- private Version version;
-
- /**
- * Returns the {@link VaadinResourceService} instance. Always returns
- * non-null.
- *
- * @return the {@link VaadinResourceService resource service} to use for
- * publishing themes, widgetsets and other necessary resources
- * @throws ResourceBundleInactiveException
- * if the bundle is not active
- */
- public static VaadinResourceService getService()
- throws ResourceBundleInactiveException {
- if (instance == null) {
- throw new ResourceBundleInactiveException(
- "Vaadin Shared is not active!");
- }
- return instance.service;
- }
-
- @Override
- public void start(BundleContext context) throws Exception {
- version = context.getBundle().getVersion();
- service = new VaadinResourceServiceImpl();
- service.setBundleVersion(version.toString());
- instance = this;
- }
-
- @Override
- public void stop(BundleContext context) throws Exception {
- instance = null;
- service = null;
- version = null;
- }
- }
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