Introduce EntityOwnerSelectionStrategy

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / jmx / mbeans / shardmanager / ShardManagerInfo.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/jmx/mbeans/shardmanager/ShardManagerInfo.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/jmx/mbeans/shardmanager/ShardManagerInfo.java
index 99c8daf87d30af3ce66bf3b5c42aa86133ec5575..94bf67557be278d1510a54457967c177fffe82d5 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/jmx/mbeans/shardmanager/ShardManagerInfo.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/jmx/mbeans/shardmanager/ShardManagerInfo.java
@@ -8,32 +8,132 @@
 
 package org.opendaylight.controller.cluster.datastore.jmx.mbeans.shardmanager;
 
+import akka.actor.ActorRef;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
 import java.util.List;
-
+import org.opendaylight.controller.cluster.datastore.ShardManager;
+import org.opendaylight.controller.cluster.datastore.messages.SwitchShardBehavior;
+import org.opendaylight.controller.cluster.raft.RaftState;
 import org.opendaylight.controller.md.sal.common.util.jmx.AbstractMXBean;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica;
+import org.opendaylight.controller.cluster.datastore.messages.RemoveShardReplica;
+import akka.pattern.Patterns;
+import akka.util.Timeout;
+import java.util.concurrent.TimeUnit;
+import scala.concurrent.Await;
 
 public class ShardManagerInfo extends AbstractMXBean implements ShardManagerInfoMBean {
 
     public static String JMX_CATEGORY_SHARD_MANAGER = "ShardManager";
 
+    // The only states that you can switch to from outside. You cannot switch to Candidate/IsolatedLeader for example
+    private static final List<String> ACCEPTABLE_STATES
+            = Lists.newArrayList(RaftState.Leader.name(), RaftState.Follower.name());
+
+    private static final Logger LOG = LoggerFactory.getLogger(ShardManagerInfo.class);
+
+    private final String memberName;
     private final List<String> localShards;
 
-    public ShardManagerInfo(String name, String mxBeanType, List<String> localShards) {
+    private boolean syncStatus = false;
+
+    private ShardManager shardManager;
+
+    public ShardManagerInfo(String memberName, String name, String mxBeanType, List<String> localShards) {
         super(name, mxBeanType, JMX_CATEGORY_SHARD_MANAGER);
+        this.memberName = memberName;
         this.localShards = localShards;
     }
 
-    public static ShardManagerInfo createShardManagerMBean(String name, String mxBeanType,
+    public static ShardManagerInfo createShardManagerMBean(String memberName, String name, String mxBeanType,
             List<String> localShards){
-        ShardManagerInfo shardManagerInfo = new ShardManagerInfo(name, mxBeanType, localShards);
+        ShardManagerInfo shardManagerInfo = new ShardManagerInfo(memberName, name, mxBeanType, localShards);
 
         shardManagerInfo.registerMBean();
 
         return shardManagerInfo;
     }
 
+    public void addLocalShard(String shardName) {
+        localShards.add(shardName);
+    }
+
     @Override
     public List<String> getLocalShards() {
         return localShards;
     }
+
+    @Override
+    public boolean getSyncStatus() {
+        return this.syncStatus;
+    }
+
+    @Override
+    public String getMemberName() {
+        return memberName;
+    }
+
+    @Override
+    public void switchAllLocalShardsState(String newState, long term) {
+        LOG.info("switchAllLocalShardsState called newState = {}, term = {}", newState, term);
+
+        for(String shardName : localShards){
+            switchShardState(shardName, newState, term);
+        }
+    }
+
+    @Override
+    public void switchShardState(String shardName, String newState, long term) {
+        LOG.info("switchShardState called shardName = {}, newState = {}, term = {}", shardName, newState, term);
+
+        Preconditions.checkArgument(localShards.contains(shardName), shardName + " is not local");
+        Preconditions.checkArgument(ACCEPTABLE_STATES.contains(newState));
+
+        shardManager.getSelf().tell(new SwitchShardBehavior(shardName, newState, term), ActorRef.noSender());
+    }
+
+    public void setSyncStatus(boolean syncStatus){
+        this.syncStatus = syncStatus;
+    }
+
+    public void setShardManager(ShardManager shardManager){
+        this.shardManager = shardManager;
+    }
+
+    @Override
+    public void setAddShardReplica (String shardName) {
+        LOG.info ("addShardReplica initiated for shard {}", shardName);
+
+        // TODO addTimeout to be made configurable
+        Timeout addTimeOut = new Timeout(1, TimeUnit.MINUTES);
+        try {
+            Await.result(Patterns.ask(shardManager.getSelf(),
+                           new AddShardReplica(shardName), addTimeOut),
+                           addTimeOut.duration());
+        } catch (Exception ex) {
+            LOG.debug ("Obtained an exception during addShardReplica", ex);
+            throw (new RuntimeException(ex.getMessage()));
+        }
+        return;
+    }
+
+    @Override
+    public void setRemoveShardReplica (String shardName) {
+        LOG.info ("removeShardReplica initiated for shard {}", shardName);
+
+        // TODO remTimeOut to be made configurable
+        Timeout remTimeOut = new Timeout(30, TimeUnit.SECONDS);
+        try {
+            Await.result(Patterns.ask(shardManager.getSelf(),
+                           new RemoveShardReplica(shardName), remTimeOut),
+                           remTimeOut.duration());
+        } catch (Exception ex) {
+            LOG.debug ("Obtained an exception during removeShardReplica", ex);
+            throw (new RuntimeException(ex.getMessage()));
+        }
+        return;
+    }
 }