| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 calculator.dosgi.impl; |
| |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| import java.util.logging.Logger; |
| |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.packageadmin.PackageAdmin; |
| |
| import calculator.dosgi.CalculatorService; |
| import calculator.dosgi.operations.AddService; |
| |
| /** |
| * |
| */ |
| public class CalculatorActivator implements BundleActivator { |
| private Logger logger = Logger.getLogger(CalculatorActivator.class.getName()); |
| |
| private Bundle getBundle(BundleContext bundleContext, Class<?> cls) { |
| PackageAdmin packageAdmin = null; |
| // PackageAdmin is used to resolve bundles |
| ServiceReference ref = bundleContext.getServiceReference("org.osgi.service.packageadmin.PackageAdmin"); |
| if (ref != null) { |
| packageAdmin = (PackageAdmin)bundleContext.getService(ref); |
| Bundle bundle = packageAdmin.getBundle(cls); |
| if (bundle != null) { |
| logger.info(cls.getName() + " is loaded by bundle: " + bundle.getSymbolicName()); |
| } |
| bundleContext.ungetService(ref); |
| return bundle; |
| } |
| return null; |
| } |
| |
| public void start(BundleContext context) throws Exception { |
| logger.info("Starting " + context.getBundle()); |
| Dictionary<String, Object> props = new Hashtable<String, Object>(); |
| props.put("sca.service", "CalculatorComponent#service-name(Calculator)"); |
| props.put("calculator", "Calculator"); |
| |
| logger.info("Registering " + CalculatorService.class.getName()); |
| CalculatorService calculator = new CalculatorServiceImpl(context); |
| context.registerService(CalculatorService.class.getName(), calculator, props); |
| |
| getBundle(context, AddService.class); |
| |
| } |
| |
| public void stop(BundleContext context) throws Exception { |
| logger.info("Stopping " + context.getBundle()); |
| // Registered services will be automatically unregistered |
| } |
| |
| } |