org.jclouds.karaf.services.Activator Maven / Gradle / Ivy

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/**
 * Copyright (C) 2011, the original authors
 *
 * ====================================================================
 * 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 org.jclouds.karaf.services;

import java.util.Hashtable;

import org.jclouds.karaf.core.BlobStoreProviderOrApiListener;
import org.jclouds.karaf.core.BlobStoreProviderOrApiRegistry;
import org.jclouds.karaf.core.ComputeProviderOrApiListener;
import org.jclouds.karaf.core.ComputeProviderOrApiRegistry;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.cm.ManagedServiceFactory;

/**
 * @author Guillaume Nodet (gnodet)
 */
public class Activator implements BundleActivator {

    ServiceRegistration computeFactoryRegistration;
    ServiceRegistration blobStoreFactoryRegistration;
    ComputeServiceFactory computeFactory;
    BlobStoreServiceFactory blobStoreFactory;

    public void start(BundleContext context) throws Exception {
        registerComputeServiceFactory(context);
        registerBlobstoreServiceFactory(context);
    }

    public void stop(BundleContext context) throws Exception {
        if (computeFactoryRegistration != null) {
            computeFactoryRegistration.unregister();
        }
        if (blobStoreFactoryRegistration != null) {
            blobStoreFactoryRegistration.unregister();
        }
    }

    /**
     * Registers a {@link ManagedServiceFactory} for the jclouds compute.
     *
     * @param context
     */
    private void registerComputeServiceFactory(BundleContext context) {

        Hashtable properties = new Hashtable();
        properties.put(Constants.SERVICE_PID, "org.jclouds.compute");
        computeFactory = new ComputeServiceFactory(context);
        computeFactoryRegistration = context.registerService(new String[]{ManagedServiceFactory.class.getName(), ComputeProviderOrApiListener.class.getName(), ComputeProviderOrApiRegistry.class.getName()},
                computeFactory, properties);
    }

    /**
     * Registers a {@link ManagedServiceFactory} for the jclouds blobstore.
     *
     * @param context
     */
    private void registerBlobstoreServiceFactory(BundleContext context) {
        Hashtable properties = new Hashtable();
        properties.put(Constants.SERVICE_PID, "org.jclouds.blobstore");
        blobStoreFactory = new BlobStoreServiceFactory(context);
        blobStoreFactoryRegistration = context.registerService(new String[]{ManagedServiceFactory.class.getName(), BlobStoreProviderOrApiListener.class.getName(), BlobStoreProviderOrApiRegistry.class.getName()},
                blobStoreFactory, properties);
    }
}