2 * Copyright (c) 2015 Brocade Communications 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.controller.cluster.datastore.shardmanager;
10 import akka.actor.Address;
11 import com.google.common.base.Preconditions;
12 import java.util.ArrayList;
13 import java.util.Collection;
16 import java.util.concurrent.ConcurrentHashMap;
17 import java.util.concurrent.ConcurrentMap;
18 import org.opendaylight.controller.cluster.access.concepts.MemberName;
19 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
20 import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
21 import org.opendaylight.controller.cluster.raft.PeerAddressResolver;
24 * Implementation PeerAddressResolver that resolves address for shard peer ids. This class is owned by the
25 * ShardMaanager and passed to Shard actors via the ConfigParams.
27 * @author Thomas Pantelis
29 class ShardPeerAddressResolver implements PeerAddressResolver {
30 // Stores a mapping between a member name and the address of the member. The map is concurrent as it
31 // will be accessed by multiple threads via the public resolve method.
32 private final ConcurrentMap<MemberName, Address> memberNameToAddress = new ConcurrentHashMap<>();
33 private final String shardManagerIdentifier;
34 private final String shardManagerType;
35 private final MemberName localMemberName;
37 ShardPeerAddressResolver(String shardManagerType, MemberName localMemberName) {
38 this.shardManagerIdentifier = ShardManagerIdentifier.builder().type(shardManagerType).build().toString();
39 this.shardManagerType = shardManagerType;
40 this.localMemberName = Preconditions.checkNotNull(localMemberName);
43 void addPeerAddress(MemberName memberName, Address address) {
44 memberNameToAddress.put(memberName, address);
47 void removePeerAddress(MemberName memberName) {
48 memberNameToAddress.remove(memberName);
51 Set<MemberName> getPeerMembers() {
52 return this.memberNameToAddress.keySet();
55 Address getPeerAddress(MemberName memberName) {
56 return memberNameToAddress.get(memberName);
59 Collection<String> getShardManagerPeerActorAddresses() {
60 Collection<String> peerAddresses = new ArrayList<>();
61 for (Map.Entry<MemberName, Address> entry: memberNameToAddress.entrySet()) {
62 if (!localMemberName.equals(entry.getKey())) {
63 peerAddresses.add(getShardManagerActorPathBuilder(entry.getValue()).toString());
70 ShardIdentifier getShardIdentifier(MemberName memberName, String shardName) {
71 return ShardIdentifier.create(shardName, memberName, shardManagerType);
74 String getShardActorAddress(String shardName, MemberName memberName) {
75 Address memberAddress = memberNameToAddress.get(memberName);
76 if (memberAddress != null) {
77 return getShardManagerActorPathBuilder(memberAddress).append("/").append(
78 getShardIdentifier(memberName, shardName)).toString();
84 StringBuilder getShardManagerActorPathBuilder(Address address) {
85 return new StringBuilder().append(address.toString()).append("/user/").append(shardManagerIdentifier);
89 public String resolve(String peerId) {
94 ShardIdentifier shardId = ShardIdentifier.fromShardIdString(peerId);
95 return getShardActorAddress(shardId.getShardName(), shardId.getMemberName());