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 java.util.concurrent.Future;
  19 import org.opendaylight.protocol.bgp.rib.spi.BGPSession;
  20 import org.opendaylight.protocol.bgp.rib.spi.PeerRPCs;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.RouteRefresh;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.RouteRefreshBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.BgpPeerRpcService;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.ResetSessionInput;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequestInput;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  27 import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
  28 import org.opendaylight.yangtools.yang.common.RpcResult;
  29 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class BgpPeerRpc implements BgpPeerRpcService {
  34
  35     private static final Logger LOG = LoggerFactory.getLogger(BgpPeerRpc.class);
  36     private static final String FAILURE_MSG = "Failed to send Route Refresh message";
  37     private static final String FAILURE_RESET_SESSION_MSG = "Failed to reset session";
  38
  39     private final BGPSession session;
  40     private final Set<TablesKey> supportedFamilies;
  41     private final PeerRPCs peerRPCs;
  42
  43     BgpPeerRpc(final PeerRPCs peerRPCs, final BGPSession session, final Set<TablesKey> supportedFamilies) {
  44         this.session = requireNonNull(session);
  45         this.peerRPCs = requireNonNull(peerRPCs);
  46         this.supportedFamilies = requireNonNull(supportedFamilies);
  47     }
  48
  49     @Override
  50     public Future<RpcResult<Void>> resetSession(final ResetSessionInput input) {
  51         final ListenableFuture<?> f = this.peerRPCs.releaseConnection();
  52         return Futures.transform(JdkFutureAdapters.listenInPoolThread(f), input1 -> {
  53             if (f.isDone()) {
  54                 return RpcResultBuilder.<Void>success().build();
  55             }
  56             return RpcResultBuilder.<Void>failed().withError(ErrorType.RPC, FAILURE_RESET_SESSION_MSG).build();
  57         }, MoreExecutors.directExecutor());
  58     }
  59
  60     @Override
  61     public Future<RpcResult<Void>> routeRefreshRequest(final RouteRefreshRequestInput input) {
  62         final ChannelFuture f = sendRRMessage(input);
  63         if (f != null) {
  64             return Futures.transform(JdkFutureAdapters.listenInPoolThread(f), input1 -> {
  65                 if (f.isSuccess()) {
  66                     return RpcResultBuilder.<Void>success().build();
  67                 }
  68                 return RpcResultBuilder.<Void>failed().withError(ErrorType.RPC, FAILURE_MSG).build();
  69             }, MoreExecutors.directExecutor());
  70         }
  71         return RpcResultBuilder.<Void>failed().withError(ErrorType.RPC, FAILURE_MSG +
  72                 " due to unsupported address families.").buildFuture();
  73     }
  74
  75     private ChannelFuture sendRRMessage(final RouteRefreshRequestInput input) {
  76         if (!this.supportedFamilies.contains(new TablesKey(input.getAfi(), input.getSafi()))) {
  77             LOG.info("Unsupported afi/safi: {}, {}.", input.getAfi(), input.getSafi());
  78             return null;
  79         }
  80         final RouteRefresh msg = new RouteRefreshBuilder().setAfi(input.getAfi()).setSafi(input.getSafi()).build();
  81         return ((BGPSessionImpl) this.session).getLimiter().writeAndFlush(msg);
  82     }
  83
  84 }