2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.protocol.bgp.rib.impl;
10 import com.google.common.base.Preconditions;
12 import java.util.concurrent.ConcurrentHashMap;
13 import org.opendaylight.protocol.bgp.rib.spi.IdentifierUtils;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerId;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerRole;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
18 import org.slf4j.Logger;
19 import org.slf4j.LoggerFactory;
22 * Tracks import policy corresponding to a particular peer.
24 final class ImportPolicyPeerTracker {
25 private static final Logger LOG = LoggerFactory.getLogger(ImportPolicyPeerTracker.class);
27 private final Map<PeerId, AbstractImportPolicy> policies = new ConcurrentHashMap<>();
28 private final PolicyDatabase policyDatabase;
30 protected ImportPolicyPeerTracker(final PolicyDatabase policyDatabase) {
32 this.policyDatabase = Preconditions.checkNotNull(policyDatabase);
36 * Invoked whenever a peer role changes.
38 * @param peerPath Peer's path
39 * @param role Peer's new role, null indicates the peer has disappeared.
41 protected void peerRoleChanged(final YangInstanceIdentifier peerPath, final PeerRole role) {
42 final PeerId peer = IdentifierUtils.peerId((NodeIdentifierWithPredicates) peerPath.getLastPathArgument());
45 // Lookup policy based on role
46 final AbstractImportPolicy policy = this.policyDatabase.importPolicyForRole(role);
49 this.policies.put(peer, policy);
50 LOG.debug("Updating policy {} for peer {}", policy, peer);
52 this.policies.remove(peer);
56 AbstractImportPolicy policyFor(final PeerId peerId) {
57 LOG.trace("Peer ID : {}", peerId);
58 return new CachingImportPolicy(this.policies.get(peerId));