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 java.util.List;
15 import org.opendaylight.controller.cluster.access.concepts.MemberName;
16 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
17 import org.opendaylight.controller.cluster.raft.RaftState;
18 import org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
19 import org.slf4j.Logger;
20 import org.slf4j.LoggerFactory;
21 import scala.concurrent.Await;
22 import scala.concurrent.duration.Duration;
24 final class ShardManagerInfo extends AbstractMXBean implements ShardManagerInfoMBean {
26 public static final String JMX_CATEGORY_SHARD_MANAGER = "ShardManager";
28 private static final Logger LOG = LoggerFactory.getLogger(ShardManagerInfo.class);
29 private static final long ASK_TIMEOUT_MILLIS = 5000;
31 private final ActorRef shardManager;
32 private final MemberName memberName;
34 private volatile boolean syncStatus = false;
37 ShardManagerInfo(final ActorRef shardManager, final MemberName memberName, final String name,
38 final String mxBeanType) {
39 super(name, mxBeanType, JMX_CATEGORY_SHARD_MANAGER);
40 this.shardManager = Preconditions.checkNotNull(shardManager);
41 this.memberName = Preconditions.checkNotNull(memberName);
44 @SuppressWarnings({"unchecked", "checkstyle:IllegalCatch"})
46 public List<String> getLocalShards() {
48 return (List<String>) Await.result(
49 Patterns.ask(shardManager, GetLocalShardIds.INSTANCE, ASK_TIMEOUT_MILLIS), Duration.Inf());
50 } catch (RuntimeException e) {
52 } catch (Exception e) {
53 throw new RuntimeException(e);
58 public boolean getSyncStatus() {
62 void setSyncStatus(final boolean syncStatus) {
63 this.syncStatus = syncStatus;
67 public String getMemberName() {
68 return memberName.getName();
71 @SuppressWarnings("checkstyle:IllegalCatch")
72 private void requestSwitchShardState(final ShardIdentifier shardId, final String newState, final long term) {
73 // Validates strings argument
74 final RaftState state = RaftState.valueOf(newState);
76 // Leader and Follower are the only states to which we can switch externally
81 Await.result(Patterns.ask(shardManager, new SwitchShardBehavior(shardId, state, term),
82 ASK_TIMEOUT_MILLIS), Duration.Inf());
83 } catch (RuntimeException e) {
85 } catch (Exception e) {
86 throw new RuntimeException(e);
92 throw new IllegalArgumentException("Illegal target state " + state);
97 public void switchAllLocalShardsState(final String newState, final long term) {
98 LOG.info("switchAllLocalShardsState called newState = {}, term = {}", newState, term);
99 requestSwitchShardState(null, newState, term);
103 public void switchShardState(final String shardId, final String newState, final long term) {
104 final ShardIdentifier identifier = ShardIdentifier.fromShardIdString(shardId);
105 LOG.info("switchShardState called shardName = {}, newState = {}, term = {}", shardId, newState, term);
106 requestSwitchShardState(identifier, newState, term);