opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/FRMActivator.java

   1 /**
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.frm;
   9
  10 import org.opendaylight.controller.frm.impl.ForwardingRulesManagerImpl;
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.sal.binding.api.AbstractBindingAwareProvider;
  13 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
  14 import org.osgi.framework.BundleContext;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 /**
  19  * Forwarding Rules Manager Activator
  20  *
  21  * Activator {@link ForwardingRulesManager}.
  22  * It registers all listeners (DataChangeEvent, ReconcilNotification)
  23  * in the Session Initialization phase.
  24  *
  25  * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
  26  * *
  27  */
  28 public class FRMActivator extends AbstractBindingAwareProvider {
  29
  30     private final static Logger LOG = LoggerFactory.getLogger(FRMActivator.class);
  31
  32     private ForwardingRulesManager  manager;
  33
  34     @Override
  35     public void onSessionInitiated(ProviderContext session) {
  36         LOG.info("FRMActivator initialization.");
  37         try {
  38             final DataBroker dataBroker = session.getSALService(DataBroker.class);
  39             this.manager = new ForwardingRulesManagerImpl(dataBroker, session);
  40             this.manager.start();
  41             LOG.info("FRMActivator initialization successfull.");
  42         }
  43         catch (Exception e) {
  44             LOG.error("Unexpected error by FRM initialization!", e);
  45             this.stopImpl(null);
  46         }
  47     }
  48
  49     @Override
  50     protected void stopImpl(final BundleContext context) {
  51         if (manager != null) {
  52             try {
  53                 manager.close();
  54             } catch (Exception e) {
  55                 LOG.error("Unexpected error by stopping FRMActivator", e);
  56             }
  57             manager = null;
  58             LOG.info("FRMActivator stopped.");
  59         }
  60     }
  61   }