X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2Fentityownership%2FEntityOwnerChangeListener.java;h=fcc325e8d77ff49950dd6e8b78e31a2729805028;hb=15c366198fa48eefd94f4d1a72faa9833e988250;hp=bea0caa7c666ed2ae158a6e130cf32c04e703730;hpb=ecccb6d5b43dd73aef0d2d19349d19ee9b4728f7;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnerChangeListener.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnerChangeListener.java
index bea0caa7c6..fcc325e8d7 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnerChangeListener.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/entityownership/EntityOwnerChangeListener.java
@@ -7,17 +7,13 @@
  */
 package org.opendaylight.controller.cluster.datastore.entityownership;
 
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_OWNERS_PATH;
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_QNAME;
 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.createEntity;
 import com.google.common.base.Objects;
 import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Strings;
 import java.util.Collection;
-import org.opendaylight.controller.cluster.datastore.ShardDataTree;
 import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.clustering.entity.owners.rev150804.entity.owners.EntityType;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
@@ -30,24 +26,19 @@ import org.slf4j.LoggerFactory;
  *
  * @author Thomas Pantelis
  */
-class EntityOwnerChangeListener implements DOMDataTreeChangeListener {
+class EntityOwnerChangeListener extends AbstractEntityOwnerChangeListener {
     private static final Logger LOG = LoggerFactory.getLogger(EntityOwnerChangeListener.class);
 
     private final String localMemberName;
     private final EntityOwnershipListenerSupport listenerSupport;
 
-    EntityOwnerChangeListener(String localMemberName, EntityOwnershipListenerSupport listenerSupport) {
-        this.localMemberName = localMemberName;
-        this.listenerSupport = listenerSupport;
-    }
-
-    void init(ShardDataTree shardDataTree) {
-        shardDataTree.registerTreeChangeListener(YangInstanceIdentifier.builder(ENTITY_OWNERS_PATH).
-                node(EntityType.QNAME).node(EntityType.QNAME).node(ENTITY_QNAME).node(ENTITY_QNAME).node(EntityOwnersModel.ENTITY_OWNER_QNAME).build(), this);
+    EntityOwnerChangeListener(final String localMemberName, final EntityOwnershipListenerSupport listenerSupport) {
+        this.localMemberName = Preconditions.checkNotNull(localMemberName);
+        this.listenerSupport = Preconditions.checkNotNull(listenerSupport);
     }
 
     @Override
-    public void onDataTreeChanged(Collection<DataTreeCandidate> changes) {
+    public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
         for(DataTreeCandidate change: changes) {
             DataTreeCandidateNode changeRoot = change.getRootNode();
             LeafNode<?> ownerLeaf = (LeafNode<?>) changeRoot.getDataAfter().get();
@@ -67,7 +58,7 @@ class EntityOwnerChangeListener implements DOMDataTreeChangeListener {
             if(!Objects.equal(origOwner, newOwner)) {
                 boolean isOwner = Objects.equal(localMemberName, newOwner);
                 boolean wasOwner = Objects.equal(localMemberName, origOwner);
-                boolean hasOwner = newOwner != null && !newOwner.toString().isEmpty();
+                boolean hasOwner = !Strings.isNullOrEmpty(newOwner);
 
                 Entity entity = createEntity(change.getRootPath());
 
@@ -79,11 +70,6 @@ class EntityOwnerChangeListener implements DOMDataTreeChangeListener {
         }
     }
 
-    private static String extractOwner(LeafNode<?> ownerLeaf) {
-        Object value = ownerLeaf.getValue();
-        return value != null ? value.toString() : null;
-    }
-
     private String logId() {
         return listenerSupport.getLogId();
     }