bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/BgpPeerRpc.java

   1 /*
   2  * Copyright (c) 2016 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.protocol.bgp.rib.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.JdkFutureAdapters;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import com.google.common.util.concurrent.MoreExecutors;
  16 import io.netty.channel.ChannelFuture;
  17 import java.util.Set;
  18 import org.opendaylight.protocol.bgp.rib.spi.BGPSession;
  19 import org.opendaylight.protocol.bgp.rib.spi.PeerRPCs;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.RouteRefresh;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.RouteRefreshBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.BgpPeerRpcService;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.ResetSessionInput;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.ResetSessionOutput;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.ResetSessionOutputBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequestInput;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequestOutput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequestOutputBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  30 import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
  31 import org.opendaylight.yangtools.yang.common.RpcResult;
  32 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class BgpPeerRpc implements BgpPeerRpcService {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(BgpPeerRpc.class);
  39     private static final String FAILURE_MSG = "Failed to send Route Refresh message";
  40     private static final String FAILURE_RESET_SESSION_MSG = "Failed to reset session";
  41
  42     private final BGPSession session;
  43     private final Set<TablesKey> supportedFamilies;
  44     private final PeerRPCs peerRPCs;
  45
  46     BgpPeerRpc(final PeerRPCs peerRPCs, final BGPSession session, final Set<TablesKey> supportedFamilies) {
  47         this.session = requireNonNull(session);
  48         this.peerRPCs = requireNonNull(peerRPCs);
  49         this.supportedFamilies = requireNonNull(supportedFamilies);
  50     }
  51
  52     @Override
  53     public ListenableFuture<RpcResult<ResetSessionOutput>> resetSession(final ResetSessionInput input) {
  54         final ListenableFuture<?> f = this.peerRPCs.releaseConnection();
  55         return Futures.transform(f, input1 -> {
  56             if (f.isDone()) {
  57                 return RpcResultBuilder.success(new ResetSessionOutputBuilder().build()).build();
  58             }
  59             return RpcResultBuilder.<ResetSessionOutput>failed().withError(ErrorType.RPC, FAILURE_RESET_SESSION_MSG)
  60                     .build();
  61         }, MoreExecutors.directExecutor());
  62     }
  63
  64     @Override
  65     public ListenableFuture<RpcResult<RouteRefreshRequestOutput>> routeRefreshRequest(
  66             final RouteRefreshRequestInput input) {
  67         final ChannelFuture f = sendRRMessage(input);
  68         if (f != null) {
  69             return Futures.transform(JdkFutureAdapters.listenInPoolThread(f), input1 -> {
  70                 if (f.isSuccess()) {
  71                     return RpcResultBuilder.success(new RouteRefreshRequestOutputBuilder().build()).build();
  72                 }
  73                 return RpcResultBuilder.<RouteRefreshRequestOutput>failed().withError(ErrorType.RPC, FAILURE_MSG)
  74                         .build();
  75             }, MoreExecutors.directExecutor());
  76         }
  77         return RpcResultBuilder.<RouteRefreshRequestOutput>failed().withError(ErrorType.RPC, FAILURE_MSG +
  78                 " due to unsupported address families.").buildFuture();
  79     }
  80
  81     private ChannelFuture sendRRMessage(final RouteRefreshRequestInput input) {
  82         if (!this.supportedFamilies.contains(new TablesKey(input.getAfi(), input.getSafi()))) {
  83             LOG.info("Unsupported afi/safi: {}, {}.", input.getAfi(), input.getSafi());
  84             return null;
  85         }
  86         final RouteRefresh msg = new RouteRefreshBuilder().setAfi(input.getAfi()).setSafi(input.getSafi()).build();
  87         return ((BGPSessionImpl) this.session).getLimiter().writeAndFlush(msg);
  88     }
  89
  90 }