pcep/topology-provider/src/main/java/org/opendaylight/bgpcep/pcep/topology/provider/PCEPStatefulPeerProposal.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.bgpcep.pcep.topology.provider;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.base.Preconditions;
  13 import com.google.common.util.concurrent.FutureCallback;
  14 import com.google.common.util.concurrent.Futures;
  15 import com.google.common.util.concurrent.ListenableFuture;
  16 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.PathComputationClient1;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.Stateful1;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.Tlvs3;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.Tlvs3Builder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.lsp.db.version.tlv.LspDbVersion;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Tlvs1;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.open.TlvsBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.Node1;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.PathComputationClient;
  27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 public class PCEPStatefulPeerProposal {
  36
  37     private static final Logger LOG = LoggerFactory.getLogger(PCEPStatefulPeerProposal.class);
  38
  39     private final DataBroker dataBroker;
  40     private final InstanceIdentifier<Topology> topologyId;
  41
  42     private PCEPStatefulPeerProposal(final DataBroker dataBroker, final InstanceIdentifier<Topology> topologyId) {
  43         this.dataBroker = Preconditions.checkNotNull(dataBroker);
  44         this.topologyId = Preconditions.checkNotNull(topologyId);
  45     }
  46
  47     public static PCEPStatefulPeerProposal createStatefulPeerProposal(final DataBroker dataBroker,
  48             final InstanceIdentifier<Topology> topologyId) {
  49         return new PCEPStatefulPeerProposal(dataBroker, topologyId);
  50     }
  51
  52     void setPeerProposal(final NodeId nodeId, final TlvsBuilder openTlvsBuilder) {
  53         if (isSynOptimizationEnabled(openTlvsBuilder)) {
  54             final ListenableFuture<Optional<LspDbVersion>> future = this.dataBroker.newReadOnlyTransaction().read(
  55                     LogicalDatastoreType.OPERATIONAL,
  56                     topologyId.child(Node.class, new NodeKey(nodeId)).augmentation(Node1.class)
  57                             .child(PathComputationClient.class).augmentation(PathComputationClient1.class)
  58                             .child(LspDbVersion.class));
  59             Futures.addCallback(future, new FutureCallback<Optional<LspDbVersion>>() {
  60                 @Override
  61                 public void onSuccess(final Optional<LspDbVersion> result) {
  62                     if (result.isPresent()) {
  63                         openTlvsBuilder.addAugmentation(Tlvs3.class, new Tlvs3Builder().setLspDbVersion(result.get())
  64                                 .build());
  65                     }
  66                 }
  67
  68                 @Override
  69                 public void onFailure(final Throwable t) {
  70                     LOG.warn("Failed to read toplogy {}.", InstanceIdentifier.keyOf(topologyId), t);
  71                 }
  72             });
  73         }
  74     }
  75
  76     private static boolean isSynOptimizationEnabled(final TlvsBuilder openTlvsBuilder) {
  77         final Tlvs1 statefulTlv = openTlvsBuilder.getAugmentation(Tlvs1.class);
  78         if (statefulTlv != null && statefulTlv.getStateful() != null) {
  79             return statefulTlv.getStateful().getAugmentation(Stateful1.class) != null;
  80         }
  81         return false;
  82     }
  83
  84 }