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.groupbasedpolicy.sxp.ep.provider.api.EPPolicyTemplateProvider;
  18 import org.opendaylight.groupbasedpolicy.sxp.ep.provider.spi.SxpEpProviderProvider;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.groupbasedpolicy.gbp.sxp.ise.adapter.model.rev160630.GbpSxpIseAdapter;
  20 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;
  21 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  22 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 import com.google.common.base.Preconditions;
  28
  29 /**
  30  * Purpose: main provider of gbp-ise adapter (for reading sgts and generating EndpointPolicyTemplates)
  31  */
  32 public class GbpIseAdapterProvider implements AutoCloseable, BindingAwareProvider {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(GbpIseAdapterProvider.class);
  35
  36     private final DataBroker dataBroker;
  37     private final SxpEpProviderProvider sxpEpProvider;
  38     private ListenerRegistration<ClusteredDataTreeChangeListener<IseSourceConfig>> registration;
  39     private ObjectRegistration<EPPolicyTemplateProvider> epPolicyTemplateProviderRegistration;
  40
  41     public GbpIseAdapterProvider(final DataBroker dataBroker, final BindingAwareBroker broker,
  42                                  final SxpEpProviderProvider sxpEpProvider) {
  43         this.dataBroker = Preconditions.checkNotNull(dataBroker, "provided dataBroker must not be null");
  44         this.sxpEpProvider = Preconditions.checkNotNull(sxpEpProvider, "provided sxp-ep-provider must not be null");
  45
  46         broker.registerProvider(this);
  47     }
  48
  49     @Override
  50     public void close() throws Exception {
  51         if (registration != null) {
  52             LOG.info("closing GbpIseAdapterProvider");
  53             registration.close();
  54             registration = null;
  55         }
  56         if (epPolicyTemplateProviderRegistration != null) {
  57             LOG.info("closing EPPolicyTemplateProvider");
  58             epPolicyTemplateProviderRegistration.close();
  59             epPolicyTemplateProviderRegistration = null;
  60         }
  61     }
  62
  63     @Override
  64     public void onSessionInitiated(final BindingAwareBroker.ProviderContext providerContext) {
  65         LOG.info("Starting GbpIseAdapterProvider ..");
  66
  67         // setup template provider pipeline
  68         final EPPolicyTemplateProviderFacade templateProviderFacade = new EPPolicyTemplateProviderIseImpl();
  69         epPolicyTemplateProviderRegistration = sxpEpProvider.getEPPolicyTemplateProviderRegistry()
  70                 .registerTemplateProvider(templateProviderFacade);
  71
  72         // setup harvesting and processing pipeline
  73         final SgtInfoProcessor epgGenerator = new SgtToEpgGeneratorImpl(dataBroker);
  74         final SgtInfoProcessor templateGenerator = new SgtToEPTemplateGeneratorImpl(dataBroker);
  75         final GbpIseSgtHarvester gbpIseSgtHarvester = new GbpIseSgtHarvesterImpl(epgGenerator, templateGenerator);
  76         final GbpIseConfigListenerImpl gbpIseConfigListener = new GbpIseConfigListenerImpl(
  77                 dataBroker, gbpIseSgtHarvester, templateProviderFacade);
  78
  79         // build data-tree path
  80         final DataTreeIdentifier<IseSourceConfig> dataTreePath = new DataTreeIdentifier<>(
  81                 LogicalDatastoreType.CONFIGURATION,
  82                 InstanceIdentifier.create(GbpSxpIseAdapter.class).child(IseSourceConfig.class));
  83
  84         // register config listener
  85         registration = dataBroker.registerDataTreeChangeListener(dataTreePath,
  86                 gbpIseConfigListener);
  87
  88         LOG.info("Started");
  89     }
  90 }