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 static java.util.Objects.requireNonNull;
  12
  13 import com.google.common.base.Optional;
  14 import com.google.common.util.concurrent.FutureCallback;
  15 import com.google.common.util.concurrent.Futures;
  16 import com.google.common.util.concurrent.ListenableFuture;
  17 import com.google.common.util.concurrent.MoreExecutors;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.PathComputationClient1;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.Stateful1;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.Tlvs3;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.Tlvs3Builder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.pcep.sync.optimizations.rev150714.lsp.db.version.tlv.LspDbVersion;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Tlvs1;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.open.TlvsBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.Node1;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.PathComputationClient;
  30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 public final class PCEPStatefulPeerProposal {
  39
  40     private static final Logger LOG = LoggerFactory.getLogger(PCEPStatefulPeerProposal.class);
  41
  42     private final DataBroker dataBroker;
  43     private final InstanceIdentifier<Topology> topologyId;
  44
  45     private PCEPStatefulPeerProposal(final DataBroker dataBroker, final InstanceIdentifier<Topology> topologyId) {
  46         this.dataBroker = requireNonNull(dataBroker);
  47         this.topologyId = requireNonNull(topologyId);
  48     }
  49
  50     public static PCEPStatefulPeerProposal createStatefulPeerProposal(final DataBroker dataBroker,
  51             final InstanceIdentifier<Topology> topologyId) {
  52         return new PCEPStatefulPeerProposal(dataBroker, topologyId);
  53     }
  54
  55     void setPeerProposal(final NodeId nodeId, final TlvsBuilder openTlvsBuilder) {
  56         if (isSynOptimizationEnabled(openTlvsBuilder)) {
  57             try (final ReadOnlyTransaction rTx = this.dataBroker.newReadOnlyTransaction()) {
  58                 final ListenableFuture<Optional<LspDbVersion>> future = rTx.read(
  59                     LogicalDatastoreType.OPERATIONAL,
  60                     this.topologyId.child(Node.class, new NodeKey(nodeId)).augmentation(Node1.class)
  61                     .child(PathComputationClient.class).augmentation(PathComputationClient1.class)
  62                     .child(LspDbVersion.class));
  63                 Futures.addCallback(future, new FutureCallback<Optional<LspDbVersion>>() {
  64                     @Override
  65                     public void onSuccess(final Optional<LspDbVersion> result) {
  66                         if (result.isPresent()) {
  67                             openTlvsBuilder.addAugmentation(Tlvs3.class,
  68                                 new Tlvs3Builder().setLspDbVersion(result.get()).build());
  69                         }
  70                     }
  71
  72                     @Override
  73                     public void onFailure(final Throwable t) {
  74                         LOG.warn("Failed to read toplogy {}.", InstanceIdentifier.keyOf(
  75                             PCEPStatefulPeerProposal.this.topologyId), t);
  76                     }
  77                 }, MoreExecutors.directExecutor());
  78             }
  79         }
  80     }
  81
  82     private static boolean isSynOptimizationEnabled(final TlvsBuilder openTlvsBuilder) {
  83         final Tlvs1 statefulTlv = openTlvsBuilder.getAugmentation(Tlvs1.class);
  84         if (statefulTlv != null && statefulTlv.getStateful() != null) {
  85             return statefulTlv.getStateful().getAugmentation(Stateful1.class) != null;
  86         }
  87         return false;
  88     }
  89
  90 }