CompatibilityWidgetsetContribution.java example

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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.compatibility.widgetset;

import org.osgi.service.component.ComponentContext;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.http.HttpService;

import com.vaadin.osgi.resources.OSGiVaadinResources;
import com.vaadin.osgi.resources.VaadinResourceService;

@Component(immediate = true)
public class CompatibilityWidgetsetContribution {
    private HttpService httpService;

    private static final String WIDGETSET_NAME = "com.vaadin.v7.Vaadin7WidgetSet";

    @Activate
    void startup(ComponentContext context) throws Exception {
        VaadinResourceService service = OSGiVaadinResources.getService();
        service.publishWidgetset(WIDGETSET_NAME, httpService);
    }

    @Reference
    void setHttpService(HttpService httpService) {
        this.httpService = httpService;
    }

    void unsetHttpService(HttpService httpService) {
        this.httpService = null;
    }
}