pcep/tunnel/tunnel-provider/src/main/java/org/opendaylight/bgpcep/pcep/tunnel/provider/PCEPTunnelTopologyProvider.java

   1 /*
   2  * Copyright (c) 2013 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 package org.opendaylight.bgpcep.pcep.tunnel.provider;
   9
  10 import java.util.ArrayList;
  11 import javax.annotation.concurrent.GuardedBy;
  12 import org.opendaylight.bgpcep.topology.DefaultTopologyReference;
  13 import org.opendaylight.bgpcep.topology.TopologyReference;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.pcep.rev130820.TopologyTypes1;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.pcep.rev130820.TopologyTypes1Builder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.pcep.rev130820.topology.tunnel.pcep.type.TopologyTunnelPcepBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.TopologyTypesBuilder;
  26 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28
  29 public final class PCEPTunnelTopologyProvider extends DefaultTopologyReference implements AutoCloseable {
  30
  31     private final NodeChangedListener ncl;
  32     private final InstanceIdentifier<Node> src;
  33     private final DefaultTopologyReference ref;
  34     private final DataBroker dataBroker;
  35     private final TopologyId tunneltopologyId;
  36     @GuardedBy("this")
  37     private ListenerRegistration<NodeChangedListener> reg;
  38
  39     public PCEPTunnelTopologyProvider(
  40             final DataBroker dataBroker,
  41             final InstanceIdentifier<Topology> pcepTopology,
  42             final TopologyId pcepTopologyId,
  43             final InstanceIdentifier<Topology> tunnelTopology,
  44             final TopologyId tunneltopologyId) {
  45         super(tunnelTopology);
  46         this.dataBroker = dataBroker;
  47         this.tunneltopologyId = tunneltopologyId;
  48         this.ncl = new NodeChangedListener(dataBroker, pcepTopologyId, tunnelTopology);
  49         this.src = pcepTopology.child(Node.class);
  50         this.ref = new DefaultTopologyReference(tunnelTopology);
  51     }
  52
  53     synchronized void init() {
  54         final WriteTransaction tx = this.dataBroker.newWriteOnlyTransaction();
  55         tx.put(LogicalDatastoreType.OPERATIONAL, getTopologyReference().getInstanceIdentifier(),
  56                 new TopologyBuilder().setTopologyId(this.tunneltopologyId)
  57                         .setTopologyTypes(new TopologyTypesBuilder()
  58                                 .addAugmentation(TopologyTypes1.class, new TopologyTypes1Builder()
  59                                         .setTopologyTunnelPcep(
  60                                                 new TopologyTunnelPcepBuilder().build()).build()).build())
  61                         .setNode(new ArrayList<>()).build(), true);
  62         tx.submit();
  63         this.reg = this.ncl.getDataProvider()
  64                 .registerDataTreeChangeListener(new DataTreeIdentifier<>(LogicalDatastoreType.OPERATIONAL, this.src),
  65                         this.ncl);
  66     }
  67
  68     public TopologyReference getTopologyReference() {
  69         return this.ref;
  70     }
  71
  72     @Override
  73     public synchronized void close() {
  74         if (this.reg != null) {
  75             this.reg.close();
  76             this.reg = null;
  77         }
  78     }
  79 }