2 * Copyright (c) 2014 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
9 package org.opendaylight.controller.cluster.datastore.shardmanager;
11 import akka.actor.ActorRef;
12 import akka.pattern.Patterns;
13 import com.google.common.base.Preconditions;
14 import com.google.common.base.Throwables;
15 import java.util.List;
16 import org.opendaylight.controller.cluster.access.concepts.MemberName;
17 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
18 import org.opendaylight.controller.cluster.raft.RaftState;
19 import org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
20 import org.slf4j.Logger;
21 import org.slf4j.LoggerFactory;
22 import scala.concurrent.Await;
23 import scala.concurrent.duration.Duration;
25 final class ShardManagerInfo extends AbstractMXBean implements ShardManagerInfoMBean {
27 public static final String JMX_CATEGORY_SHARD_MANAGER = "ShardManager";
29 private static final Logger LOG = LoggerFactory.getLogger(ShardManagerInfo.class);
30 private static final long ASK_TIMEOUT_MILLIS = 5000;
32 private final ActorRef shardManager;
33 private final MemberName memberName;
35 private volatile boolean syncStatus = false;
38 ShardManagerInfo(final ActorRef shardManager, final MemberName memberName, final String name,
39 final String mxBeanType) {
40 super(name, mxBeanType, JMX_CATEGORY_SHARD_MANAGER);
41 this.shardManager = Preconditions.checkNotNull(shardManager);
42 this.memberName = Preconditions.checkNotNull(memberName);
45 @SuppressWarnings({"unchecked", "checkstyle:IllegalCatch"})
47 public List<String> getLocalShards() {
49 return (List<String>) Await.result(
50 Patterns.ask(shardManager, GetLocalShardIds.INSTANCE, ASK_TIMEOUT_MILLIS), Duration.Inf());
51 } catch (Exception e) {
52 throw Throwables.propagate(e);
57 public boolean getSyncStatus() {
61 void setSyncStatus(boolean syncStatus) {
62 this.syncStatus = syncStatus;
66 public String getMemberName() {
67 return memberName.getName();
70 @SuppressWarnings("checkstyle:IllegalCatch")
71 private void requestSwitchShardState(final ShardIdentifier shardId, final String newState, final long term) {
72 // Validates strings argument
73 final RaftState state = RaftState.valueOf(newState);
75 // Leader and Follower are the only states to which we can switch externally
80 Await.result(Patterns.ask(shardManager, new SwitchShardBehavior(shardId, state, term),
81 ASK_TIMEOUT_MILLIS), Duration.Inf());
82 } catch (Exception e) {
83 throw Throwables.propagate(e);
89 throw new IllegalArgumentException("Illegal target state " + state);
94 public void switchAllLocalShardsState(String newState, long term) {
95 LOG.info("switchAllLocalShardsState called newState = {}, term = {}", newState, term);
96 requestSwitchShardState(null, newState, term);
100 public void switchShardState(String shardId, String newState, long term) {
101 final ShardIdentifier identifier = ShardIdentifier.fromShardIdString(shardId);
102 LOG.info("switchShardState called shardName = {}, newState = {}, term = {}", shardId, newState, term);
103 requestSwitchShardState(identifier, newState, term);