opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/ShardingServiceAddressResolver.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.controller.cluster.sharding;
   9
  10 import static com.google.common.base.Preconditions.checkNotNull;
  11 import static java.util.Objects.requireNonNull;
  12
  13 import akka.actor.Address;
  14 import java.util.Collection;
  15 import java.util.concurrent.ConcurrentHashMap;
  16 import java.util.concurrent.ConcurrentMap;
  17 import java.util.stream.Collectors;
  18 import org.opendaylight.controller.cluster.access.concepts.MemberName;
  19
  20 /**
  21  * Resolver for remote {@link ShardedDataTreeActor}'s.
  22  */
  23 @Deprecated(forRemoval = true)
  24 public class ShardingServiceAddressResolver {
  25
  26     private final ConcurrentMap<MemberName, Address> memberNameToAddress = new ConcurrentHashMap<>();
  27     private final String shardingServiceActorIdentifier;
  28     private final MemberName localMemberName;
  29
  30     public ShardingServiceAddressResolver(final String shardingServiceActorIdentifier,
  31                                           final MemberName localMemberName) {
  32         this.shardingServiceActorIdentifier = shardingServiceActorIdentifier;
  33         this.localMemberName = localMemberName;
  34     }
  35
  36     void addPeerAddress(final MemberName memberName, final Address address) {
  37         memberNameToAddress.put(memberName, address);
  38     }
  39
  40     void removePeerAddress(final MemberName memberName) {
  41         memberNameToAddress.remove(memberName);
  42     }
  43
  44     Address getPeerAddress(final MemberName memberName) {
  45         return memberNameToAddress.get(memberName);
  46     }
  47
  48     StringBuilder getActorPathBuilder(final Address address) {
  49         return new StringBuilder().append(address.toString()).append("/user/").append(shardingServiceActorIdentifier);
  50     }
  51
  52     Collection<String> getShardingServicePeerActorAddresses() {
  53         final Collection<String> peerAddresses =
  54                 memberNameToAddress
  55                         .entrySet()
  56                         .stream()
  57                         .filter(entry -> !localMemberName.equals(entry.getKey()))
  58                         .map(entry -> getActorPathBuilder(entry.getValue()).toString())
  59                         .collect(Collectors.toList());
  60
  61         return peerAddresses;
  62     }
  63
  64     public String resolve(final MemberName memberName) {
  65         final Address address = memberNameToAddress.get(requireNonNull(memberName));
  66         checkNotNull(address, "Requested member[%s] is not present in the resolver", memberName);
  67         return getActorPathBuilder(address).toString();
  68     }
  69 }