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.FutureCallback;
  13 import com.google.common.util.concurrent.Futures;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import com.google.common.util.concurrent.MoreExecutors;
  16 import com.google.common.util.concurrent.SettableFuture;
  17 import io.netty.channel.ChannelFuture;
  18 import java.util.Set;
  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.rev180329.RouteRefresh;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.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.ResetSessionOutput;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.ResetSessionOutputBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RestartGracefullyInput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RestartGracefullyOutput;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RestartGracefullyOutputBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequestInput;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequestOutput;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev180329.RouteRefreshRequestOutputBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  34 import org.opendaylight.yangtools.yang.common.ErrorType;
  35 import org.opendaylight.yangtools.yang.common.RpcResult;
  36 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 public class BgpPeerRpc implements BgpPeerRpcService {
  41
  42     private static final Logger LOG = LoggerFactory.getLogger(BgpPeerRpc.class);
  43     private static final String FAILURE_MSG = "Failed to send Route Refresh message";
  44     private static final String FAILURE_RESET_SESSION_MSG = "Failed to reset session";
  45
  46     private final BGPSession session;
  47     private final Set<TablesKey> supportedFamilies;
  48     private final PeerRPCs peerRPCs;
  49
  50     BgpPeerRpc(final PeerRPCs peerRPCs, final BGPSession session, final Set<TablesKey> supportedFamilies) {
  51         this.session = requireNonNull(session);
  52         this.peerRPCs = requireNonNull(peerRPCs);
  53         this.supportedFamilies = requireNonNull(supportedFamilies);
  54     }
  55
  56     @Override
  57     public ListenableFuture<RpcResult<ResetSessionOutput>> resetSession(final ResetSessionInput input) {
  58         final ListenableFuture<?> f = peerRPCs.releaseConnection();
  59         return Futures.transform(f, input1 -> {
  60             if (f.isDone()) {
  61                 return RpcResultBuilder.success(new ResetSessionOutputBuilder().build()).build();
  62             }
  63             return RpcResultBuilder.<ResetSessionOutput>failed().withError(ErrorType.RPC, FAILURE_RESET_SESSION_MSG)
  64                     .build();
  65         }, MoreExecutors.directExecutor());
  66     }
  67
  68     @Override
  69     public ListenableFuture<RpcResult<RestartGracefullyOutput>> restartGracefully(final RestartGracefullyInput input) {
  70         final SettableFuture<RpcResult<RestartGracefullyOutput>> ret = SettableFuture.create();
  71         Futures.addCallback(peerRPCs.restartGracefully(input.getSelectionDeferralTime().toJava()),
  72             new FutureCallback<Object>() {
  73                 @Override
  74                 public void onSuccess(final Object result) {
  75                     ret.set(RpcResultBuilder.success(new RestartGracefullyOutputBuilder().build()).build());
  76                 }
  77
  78                 @Override
  79                 public void onFailure(final Throwable throwable) {
  80                     LOG.error("Failed to perform graceful restart", throwable);
  81                     ret.set(RpcResultBuilder.<RestartGracefullyOutput>failed()
  82                         .withError(ErrorType.RPC, throwable.getMessage()).build());
  83                 }
  84             }, MoreExecutors.directExecutor());
  85         return ret;
  86     }
  87
  88     @Override
  89     public ListenableFuture<RpcResult<RouteRefreshRequestOutput>> routeRefreshRequest(
  90             final RouteRefreshRequestInput input) {
  91         final ChannelFuture f = sendRRMessage(input);
  92         if (f == null) {
  93             return RpcResultBuilder.<RouteRefreshRequestOutput>failed().withError(ErrorType.RPC,
  94                 FAILURE_MSG + " due to unsupported address families.").buildFuture();
  95         }
  96
  97         final SettableFuture<RpcResult<RouteRefreshRequestOutput>> ret = SettableFuture.create();
  98         f.addListener(future -> {
  99             ret.set(future.isSuccess()
 100                 ? RpcResultBuilder.success(new RouteRefreshRequestOutputBuilder().build()).build()
 101                         : RpcResultBuilder.<RouteRefreshRequestOutput>failed().withError(ErrorType.RPC, FAILURE_MSG)
 102                         .build());
 103         });
 104         return ret;
 105     }
 106
 107     private ChannelFuture sendRRMessage(final RouteRefreshRequestInput input) {
 108         if (!supportedFamilies.contains(new TablesKey(input.getAfi(), input.getSafi()))) {
 109             LOG.info("Unsupported afi/safi: {}, {}.", input.getAfi(), input.getSafi());
 110             return null;
 111         }
 112         final RouteRefresh msg = new RouteRefreshBuilder().setAfi(input.getAfi()).setSafi(input.getSafi()).build();
 113         return ((BGPSessionImpl) session).getLimiter().writeAndFlush(msg);
 114     }
 115 }