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/*
* 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
}
}
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