/*******************************************************************************
 * Copyright (c) 2004, 2007 Boeing.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Boeing - initial API and implementation
 *******************************************************************************/
package org.eclipse.osee.connection.service.internal;

import java.util.List;
import java.util.logging.Level;
import org.eclipse.osee.connection.service.IConnectionService;
import org.eclipse.osee.connection.service.IConnectorContributor;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.framework.plugin.core.util.ExtensionDefinedObjects;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;

public class Activator implements BundleActivator {

   private ConnectionServiceImpl service;
   private ServiceRegistration registration;

   @Override
   public void start(BundleContext context) throws Exception {
      service = new ConnectionServiceImpl();

      // register the service
      registration = context.registerService(IConnectionService.class.getName(), service, null);

      // create a tracker and track the service

      ExtensionDefinedObjects<IConnectorContributor> definedObjects =
         new ExtensionDefinedObjects<IConnectorContributor>("org.eclipse.osee.connection.service.ext",
            "ConnectorContribution", "className");
      try {
         List<IConnectorContributor> contributors = definedObjects.getObjects();
         for (IConnectorContributor contributor : contributors) {
            try {
               contributor.init();
            } catch (Exception e) {
               log(Level.SEVERE, "exception initializing connector contributor", e);
            }
         }
      } catch (Exception ex) {
         log(Level.SEVERE, "failed to process OTE runtime library provider extensions", ex);
      }
   }

   @Override
   public void stop(BundleContext context) throws Exception {
      service.stop();
      registration.unregister();
      service = null;
   }

   public static void log(Level level, String message, Throwable t) {
      OseeLog.log(Activator.class, level, message, t);
   }

   public static void log(Level level, String message) {
      log(level, message, null);
   }

}