sxp-integration/sxp-ise-adapter/src/main/java/org/opendaylight/groupbasedpolicy/sxp_ise_adapter/impl/GbpIseAdapterProvider.java

   1 /*
   2  * Copyright (c) 2016 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
   9 package org.opendaylight.groupbasedpolicy.sxp_ise_adapter.impl;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
  16 import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.gbp.sxp.ise.adapter.model.rev160630.GbpSxpIseAdapter;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.gbp.sxp.ise.adapter.model.rev160630.gbp.sxp.ise.adapter.IseSourceConfig;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 import com.google.common.base.Preconditions;
  25
  26 /**
  27  * Purpose: main provider of gbp-ise adapter (for reading sgts and generating EndpointPolicyTemplates)
  28  */
  29 public class GbpIseAdapterProvider implements AutoCloseable, BindingAwareProvider {
  30
  31     private static final Logger LOG = LoggerFactory.getLogger(GbpIseAdapterProvider.class);
  32
  33     private final DataBroker dataBroker;
  34     private ListenerRegistration<ClusteredDataTreeChangeListener<IseSourceConfig>> registration;
  35
  36     public GbpIseAdapterProvider(final DataBroker dataBroker, final BindingAwareBroker brokerDependency) {
  37         this.dataBroker = Preconditions.checkNotNull(dataBroker, "provided dataBroker must not be null");
  38         brokerDependency.registerProvider(this);
  39     }
  40
  41     @Override
  42     public void close() {
  43         if (registration != null) {
  44             LOG.info("closing GbpIseAdapterProvider");
  45             registration.close();
  46             registration = null;
  47         }
  48     }
  49
  50     @Override
  51     public void onSessionInitiated(final BindingAwareBroker.ProviderContext providerContext) {
  52         LOG.info("Starting GbpIseAdapterProvider ..");
  53
  54         // setup harvesting and processing pipeline
  55         final SgtInfoProcessor epgGenerator = new SgtToEpgGeneratorImpl(dataBroker);
  56         final SgtInfoProcessor templateGenerator = new SgtToEPTemplateGeneratorImpl(dataBroker);
  57         final GbpIseSgtHarvester gbpIseSgtHarvester = new GbpIseSgtHarvesterImpl(epgGenerator, templateGenerator);
  58         final GbpIseConfigListenerImpl gbpIseConfigListener = new GbpIseConfigListenerImpl(dataBroker, gbpIseSgtHarvester);
  59
  60         // build data-tree path
  61         final DataTreeIdentifier<IseSourceConfig> dataTreePath = new DataTreeIdentifier<>(
  62                 LogicalDatastoreType.CONFIGURATION,
  63                 InstanceIdentifier.create(GbpSxpIseAdapter.class).child(IseSourceConfig.class));
  64
  65         // register config listener
  66         registration = dataBroker.registerDataTreeChangeListener(dataTreePath,
  67                 gbpIseConfigListener);
  68
  69         LOG.info("Started");
  70     }
  71 }