pcep/tunnel/tunnel-provider/src/main/java/org/opendaylight/bgpcep/pcep/tunnel/provider/DestroyTunnelInstructionExecutor.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.tunnel.provider;
  10
  11 import com.google.common.util.concurrent.Futures;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import com.google.common.util.concurrent.MoreExecutors;
  14 import java.util.concurrent.ExecutionException;
  15 import org.opendaylight.bgpcep.pcep.topology.spi.AbstractInstructionExecutor;
  16 import org.opendaylight.bgpcep.programming.topology.TopologyProgrammingUtil;
  17 import org.opendaylight.bgpcep.programming.tunnel.TunnelProgrammingUtil;
  18 import org.opendaylight.mdsal.binding.api.DataBroker;
  19 import org.opendaylight.mdsal.binding.api.ReadTransaction;
  20 import org.opendaylight.mdsal.binding.api.RpcService;
  21 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev220730.OperationResult;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev220730.RemoveLsp;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev220730.RemoveLspInputBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.pcep.programming.rev181109.PcepDestroyTunnelInput;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.pcep.rev181109.Link1;
  27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.opendaylight.yangtools.yang.common.RpcResult;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 final class DestroyTunnelInstructionExecutor extends AbstractInstructionExecutor {
  36     private static final Logger LOG = LoggerFactory.getLogger(DestroyTunnelInstructionExecutor.class);
  37     private final PcepDestroyTunnelInput pcepDestroyTunnelInput;
  38     private final DataBroker dataProvider;
  39     private final RemoveLsp removeLsp;
  40
  41     DestroyTunnelInstructionExecutor(final PcepDestroyTunnelInput pcepDestroyTunnelInput, final DataBroker dataProvider,
  42             final RpcService rpcService) {
  43         super(pcepDestroyTunnelInput);
  44         this.pcepDestroyTunnelInput = pcepDestroyTunnelInput;
  45         this.dataProvider = dataProvider;
  46         removeLsp = rpcService.getRpc(RemoveLsp.class);
  47     }
  48
  49     @Override
  50     protected ListenableFuture<OperationResult> invokeOperation() {
  51         final InstanceIdentifier<Topology> tii = TopologyProgrammingUtil.topologyForInput(pcepDestroyTunnelInput);
  52         final InstanceIdentifier<Link> lii = TunnelProgrammingUtil.linkIdentifier(tii, pcepDestroyTunnelInput);
  53         try (ReadTransaction t = dataProvider.newReadOnlyTransaction()) {
  54             final Node node;
  55             final Link link;
  56             try {
  57                 // The link has to exist
  58                 link = t.read(LogicalDatastoreType.OPERATIONAL, lii).get().orElseThrow();
  59                 // The source node has to exist
  60                 node = TunelProgrammingUtil.sourceNode(t, tii, link).orElseThrow();
  61             } catch (final InterruptedException | ExecutionException e) {
  62                 LOG.debug("Link or node does not exist.", e);
  63                 return TunelProgrammingUtil.RESULT;
  64             }
  65             final RemoveLspInputBuilder ab = new RemoveLspInputBuilder();
  66             ab.setName(link.augmentation(Link1.class).getSymbolicPathName());
  67             ab.setNode(node.nonnullSupportingNode().values().iterator().next().key().getNodeRef());
  68             return Futures.transform(removeLsp.invoke(ab.build()), RpcResult::getResult,
  69                 MoreExecutors.directExecutor());
  70         }
  71     }
  72 }