BUG-5511: Support Route Refresh operation from BGP

[bgpcep.git] / bgp / rib-impl / src / main / java / org / opendaylight / protocol / bgp / rib / impl / BgpPeerRpc.java

diff --git a/bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/BgpPeerRpc.java b/bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/BgpPeerRpc.java
new file mode 100644 (file)
index 0000000..26a12fb
--- /dev/null
+++ b/bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/BgpPeerRpc.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.protocol.bgp.rib.impl;
+
+import com.google.common.base.Function;
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.JdkFutureAdapters;
+import io.netty.channel.ChannelFuture;
+import java.util.Set;
+import java.util.concurrent.Future;
+import org.opendaylight.protocol.bgp.rib.spi.BGPSession;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.RouteRefresh;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.RouteRefreshBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev160322.BgpPeerRpcService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.peer.rpc.rev160322.RouteRefreshRequestInput;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
+import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
+import org.opendaylight.yangtools.yang.common.RpcResult;
+import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class BgpPeerRpc implements BgpPeerRpcService {
+
+    private static final Logger LOG = LoggerFactory.getLogger(BgpPeerRpc.class);
+    private static final String FAILURE_MSG = "Failed to send Route Refresh message";
+
+    private final BGPSession session;
+    private final Set<TablesKey> supportedFamilies;
+
+    BgpPeerRpc(final BGPSession session, final Set<TablesKey> supportedFamilies) {
+        this.session = Preconditions.checkNotNull(session);
+        this.supportedFamilies = Preconditions.checkNotNull(supportedFamilies);
+    }
+
+    @Override
+    public Future<RpcResult<Void>> routeRefreshRequest(final RouteRefreshRequestInput input) {
+        final ChannelFuture f = sendRRMessage(input);
+        if (f != null) {
+            return Futures.transform(JdkFutureAdapters.listenInPoolThread(f), new Function<Void, RpcResult<Void>>() {
+                @Override
+                public RpcResult<Void> apply(final Void input) {
+                    if (f.isSuccess()) {
+                        return RpcResultBuilder.<Void>success().build();
+                    } else {
+                        return RpcResultBuilder.<Void>failed().withError(ErrorType.RPC, FAILURE_MSG).build();
+                    }
+                }
+            });
+        }
+        return RpcResultBuilder.<Void>failed().withError(ErrorType.RPC, FAILURE_MSG + " due to unsupported address families.").buildFuture();
+    }
+
+    private ChannelFuture sendRRMessage(final RouteRefreshRequestInput input) {
+        if (!this.supportedFamilies.contains(new TablesKey(input.getAfi(), input.getSafi()))) {
+            LOG.info("Unsupported afi/safi: {}, {}.", input.getAfi(), input.getSafi());
+            return null;
+        }
+        final RouteRefresh msg = new RouteRefreshBuilder().setAfi(input.getAfi()).setSafi(input.getSafi()).build();
+        return ((BGPSessionImpl) this.session).getLimiter().writeAndFlush(msg);
+    }
+
+}