/*
 *  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 org.codehaus.groovy.osgi.harness

import org.osgi.framework.BundleActivator
import org.osgi.framework.BundleContext
import org.osgi.framework.ServiceRegistration
import org.osgi.framework.ServiceReference
import org.codehaus.groovy.osgi.GroovyGreeter

/**
 * This OSGi Activator finds all registered services of type GroovyGreeter
 * and then invokes the sayHello() method on any that it finds.
 *
 * @author Hamlet D'Arcy
 */
public class HarnessActivator implements BundleActivator {

    public void start(BundleContext context) {
        String serviceName = GroovyGreeter.class.getName()
        ServiceReference[] references = context.getAllServiceReferences(serviceName, null)

        println "${ references ? references.size() : 0 } GroovyGreeter services found."

        references?.each { ServiceReference ref ->
            Object serviceHandle = context.getService(ref)
            GroovyGreeter service = (GroovyGreeter) serviceHandle
            service.sayHello()
        }
    }

    public void stop(BundleContext context) {
    }
}