neutron-ovsdb/src/main/java/org/opendaylight/groupbasedpolicy/neutron/ovsdb/NeutronGbpMapperListener.java

   1 /*
   2  * Copyright (c) 2015 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.neutron.ovsdb;
  10
  11 import static com.google.common.base.Preconditions.checkNotNull;
  12
  13 import java.util.Map.Entry;
  14
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  17 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  19 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.util.NeutronOvsdbIidFactory;
  22 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  23 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointL3;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointL3Builder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointL3Key;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.external.gateways.as.l3.endpoints.ExternalGatewayAsL3Endpoint;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.EndpointLocation.LocationType;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayL3Context;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayL3ContextBuilder;
  31 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  32 import org.opendaylight.yangtools.yang.binding.DataObject;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 import com.google.common.base.Optional;
  38
  39 public class NeutronGbpMapperListener implements DataChangeListener, AutoCloseable {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(NeutronGbpMapperListener.class);
  42     private final ListenerRegistration<DataChangeListener> registration;
  43     private final DataBroker dataBroker;
  44
  45     public NeutronGbpMapperListener(DataBroker dataBroker) {
  46         this.dataBroker = checkNotNull(dataBroker);
  47         registration = dataBroker.registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
  48         NeutronOvsdbIidFactory.neutronGbpExternalGatewaysIid(), this, DataChangeScope.SUBTREE);
  49         LOG.trace("NeutronGbpMapperListener started");
  50     }
  51
  52     @Override
  53     public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  54
  55         /*
  56          */
  57         for (Entry<InstanceIdentifier<?>, DataObject> entry : change.getCreatedData().entrySet()) {
  58             if (entry.getValue() instanceof ExternalGatewayAsL3Endpoint) {
  59                 ExternalGatewayAsL3Endpoint ExternalGatewayAsL3Endpoint = (ExternalGatewayAsL3Endpoint) entry.getValue();
  60                 processExternalGatewayAsL3Endpoint(ExternalGatewayAsL3Endpoint);
  61             }
  62         }
  63
  64         /*
  65          * Updates
  66          */
  67         for (Entry<InstanceIdentifier<?>, DataObject> entry : change.getUpdatedData().entrySet()) {
  68             if (entry.getValue() instanceof ExternalGatewayAsL3Endpoint) {
  69                 ExternalGatewayAsL3Endpoint ExternalGatewayAsL3Endpoint = (ExternalGatewayAsL3Endpoint) entry.getValue();
  70                 processExternalGatewayAsL3Endpoint(ExternalGatewayAsL3Endpoint);
  71             }
  72         }
  73
  74         /*
  75          * Deletions
  76          */
  77         for (InstanceIdentifier<?> iid : change.getRemovedPaths()) {
  78             /*
  79              * Remove ?
  80              */
  81         }
  82     }
  83
  84     private void processExternalGatewayAsL3Endpoint(ExternalGatewayAsL3Endpoint ExternalGatewayAsL3Endpoint) {
  85         LOG.trace("Received ExternalGatewayAsL3Endpoints notification {}", ExternalGatewayAsL3Endpoint);
  86         ReadWriteTransaction rwTx = dataBroker.newReadWriteTransaction();
  87         EndpointL3Key epL3Key = new EndpointL3Key(ExternalGatewayAsL3Endpoint.getIpAddress(),
  88                 ExternalGatewayAsL3Endpoint.getL3Context());
  89         InstanceIdentifier<EndpointL3> epL3Iid = IidFactory.endpointL3Iid(epL3Key.getL3Context(),
  90                 epL3Key.getIpAddress());
  91         Optional<EndpointL3> endpointL3 = DataStoreHelper.readFromDs(LogicalDatastoreType.OPERATIONAL, epL3Iid, rwTx);
  92
  93         if (endpointL3.isPresent()) {
  94             EndpointL3Builder epL3Builder = new EndpointL3Builder(endpointL3.get()).addAugmentation(
  95                     OfOverlayL3Context.class, new OfOverlayL3ContextBuilder().setLocationType(LocationType.External)
  96                         .build());
  97             rwTx.put(LogicalDatastoreType.OPERATIONAL, epL3Iid, epL3Builder.build());
  98             DataStoreHelper.submitToDs(rwTx);
  99         } else {
 100             LOG.error("External Gateway {} does not exist in Endpoint repository", epL3Key);
 101             return;
 102         }
 103     }
 104
 105     @Override
 106     public void close() throws Exception {
 107         registration.close();
 108     }
 109
 110 }