BUG-5626: Eliminate ShardIdentifier.Builder

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / entityownership / EntityOwnershipListenerSupport.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnershipListenerSupport.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnershipListenerSupport.java
index a09d224954aedcbde762045d9d9e51c61a5bf7f6..c0fe55f12d14ee092a8d34ac6cf41882523fb929 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnershipListenerSupport.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnershipListenerSupport.java
@@ -12,12 +12,13 @@ import akka.actor.ActorRef;
 import akka.actor.PoisonPill;
 import com.google.common.collect.HashMultimap;
 import com.google.common.collect.Multimap;
-import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
 import java.util.IdentityHashMap;
 import java.util.Map;
+import java.util.Set;
 import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
-import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipCandidate;
 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipChange;
 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListener;
 import org.slf4j.Logger;
@@ -34,8 +35,9 @@ class EntityOwnershipListenerSupport {
     private final String logId;
     private final ActorContext actorContext;
     private final Map<EntityOwnershipListener, ListenerActorRefEntry> listenerActorMap = new IdentityHashMap<>();
-    private final Multimap<Entity, EntityOwnershipListener> entityListenerMap = HashMultimap.create();
+    private final Set<Entity> entitiesWithCandidateSet = new HashSet<>();
     private final Multimap<String, EntityOwnershipListener> entityTypeListenerMap = HashMultimap.create();
+    private volatile boolean inJeopardy = false;
 
     EntityOwnershipListenerSupport(ActorContext actorContext, String logId) {
         this.actorContext = actorContext;
@@ -46,53 +48,53 @@ class EntityOwnershipListenerSupport {
         return logId;
     }
 
-    boolean hasCandidateForEntity(Entity entity) {
-        for(EntityOwnershipListener listener: entityListenerMap.get(entity)) {
-            if(listener instanceof EntityOwnershipCandidate) {
-                return true;
-            }
-        }
+    /**
+     * Set the in-jeopardy flag and indicate its previous state.
+     *
+     * @param inJeopardy new value of the in-jeopardy flag
+     * @return Previous value of the flag.
+     */
+    boolean setInJeopardy(final boolean inJeopardy) {
+        final boolean wasInJeopardy = this.inJeopardy;
+        this.inJeopardy = inJeopardy;
+        return wasInJeopardy;
+    }
 
-        return false;
+    boolean hasCandidateForEntity(Entity entity) {
+        return entitiesWithCandidateSet.contains(entity);
     }
 
-    void addEntityOwnershipListener(Entity entity, EntityOwnershipListener listener) {
-        LOG.debug("{}: Adding EntityOwnershipListener {} for {}", logId, listener, entity);
+    void setHasCandidateForEntity(Entity entity) {
+        entitiesWithCandidateSet.add(entity);
+    }
 
-        addListener(listener, entity, entityListenerMap);
+    void unsetHasCandidateForEntity(Entity entity) {
+        entitiesWithCandidateSet.remove(entity);
     }
 
     void addEntityOwnershipListener(String entityType, EntityOwnershipListener listener) {
         LOG.debug("{}: Adding EntityOwnershipListener {} for entity type {}", logId, listener, entityType);
 
-        addListener(listener, entityType, entityTypeListenerMap);
-    }
-
-    void removeEntityOwnershipListener(Entity entity, EntityOwnershipListener listener) {
-        LOG.debug("{}: Removing EntityOwnershipListener {} for {}", logId, listener, entity);
-
-        removeListener(listener, entity, entityListenerMap);
+        addListener(listener, entityType);
     }
 
     void removeEntityOwnershipListener(String entityType, EntityOwnershipListener listener) {
         LOG.debug("{}: Removing EntityOwnershipListener {} for entity type {}", logId, listener, entityType);
 
-        removeListener(listener, entityType, entityTypeListenerMap);
+        removeListener(listener, entityType);
     }
 
     void notifyEntityOwnershipListeners(Entity entity, boolean wasOwner, boolean isOwner, boolean hasOwner) {
-        notifyListeners(entity, entity, wasOwner, isOwner, hasOwner, entityListenerMap);
-        notifyListeners(entity, entity.getType(), wasOwner, isOwner, hasOwner, entityTypeListenerMap);
+        notifyListeners(entity, entity.getType(), wasOwner, isOwner, hasOwner);
     }
 
     void notifyEntityOwnershipListener(Entity entity, boolean wasOwner, boolean isOwner, boolean hasOwner,
             EntityOwnershipListener listener) {
-        notifyListeners(entity, wasOwner, isOwner, hasOwner, Arrays.asList(listener));
+        notifyListeners(entity, wasOwner, isOwner, hasOwner, Collections.singleton(listener));
     }
 
-    private <T> void notifyListeners(Entity entity, T mapKey, boolean wasOwner, boolean isOwner, boolean hasOwner,
-            Multimap<T, EntityOwnershipListener> listenerMap) {
-        Collection<EntityOwnershipListener> listeners = listenerMap.get(mapKey);
+    private void notifyListeners(Entity entity, String mapKey, boolean wasOwner, boolean isOwner, boolean hasOwner) {
+        Collection<EntityOwnershipListener> listeners = entityTypeListenerMap.get(mapKey);
         if(!listeners.isEmpty()) {
             notifyListeners(entity, wasOwner, isOwner, hasOwner, listeners);
         }
@@ -100,7 +102,7 @@ class EntityOwnershipListenerSupport {
 
     private void notifyListeners(Entity entity, boolean wasOwner, boolean isOwner, boolean hasOwner,
             Collection<EntityOwnershipListener> listeners) {
-        EntityOwnershipChange changed = new EntityOwnershipChange(entity, wasOwner, isOwner, hasOwner);
+        EntityOwnershipChange changed = new EntityOwnershipChange(entity, wasOwner, isOwner, hasOwner, inJeopardy);
         for(EntityOwnershipListener listener: listeners) {
             ActorRef listenerActor = listenerActorFor(listener);
 
@@ -110,9 +112,8 @@ class EntityOwnershipListenerSupport {
         }
     }
 
-    private <T> void addListener(EntityOwnershipListener listener, T mapKey,
-            Multimap<T, EntityOwnershipListener> toListenerMap) {
-        if(toListenerMap.put(mapKey, listener)) {
+    private void addListener(EntityOwnershipListener listener, String mapKey) {
+        if (entityTypeListenerMap.put(mapKey, listener)) {
             ListenerActorRefEntry listenerEntry = listenerActorMap.get(listener);
             if(listenerEntry == null) {
                 listenerActorMap.put(listener, new ListenerActorRefEntry());
@@ -122,9 +123,8 @@ class EntityOwnershipListenerSupport {
         }
     }
 
-    private <T> void removeListener(EntityOwnershipListener listener, T mapKey,
-            Multimap<T, EntityOwnershipListener> fromListenerMap) {
-        if(fromListenerMap.remove(mapKey, listener)) {
+    private void removeListener(EntityOwnershipListener listener, String mapKey) {
+        if (entityTypeListenerMap.remove(mapKey, listener)) {
             ListenerActorRefEntry listenerEntry = listenerActorMap.get(listener);
 
             LOG.debug("{}: Found {}", logId, listenerEntry);