*/
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 com.google.common.base.Verify;
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 java.util.Objects;
+import java.util.Optional;
+import org.opendaylight.controller.cluster.access.concepts.MemberName;
+import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
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;
*
* @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;
- }
+ private final EntityOwnershipChangePublisher publisher;
- 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 MemberName localMemberName, final EntityOwnershipChangePublisher publisher) {
+ this.localMemberName = Verify.verifyNotNull(localMemberName.getName());
+ this.publisher = Preconditions.checkNotNull(publisher);
}
@Override
- public void onDataTreeChanged(Collection<DataTreeCandidate> changes) {
- for(DataTreeCandidate change: changes) {
+ public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
+ for (DataTreeCandidate change: changes) {
DataTreeCandidateNode changeRoot = change.getRootNode();
LeafNode<?> ownerLeaf = (LeafNode<?>) changeRoot.getDataAfter().get();
- LOG.debug("{}: Entity node changed: {}, {}", logId(), changeRoot.getModificationType(), change.getRootPath());
+ LOG.debug("{}: Entity node changed: {}, {}", logId(), changeRoot.getModificationType(),
+ change.getRootPath());
String newOwner = extractOwner(ownerLeaf);
String origOwner = null;
Optional<NormalizedNode<?, ?>> dataBefore = changeRoot.getDataBefore();
- if(dataBefore.isPresent()) {
+ if (dataBefore.isPresent()) {
origOwner = extractOwner((LeafNode<?>) changeRoot.getDataBefore().get());
}
LOG.debug("{}: New owner: {}, Original owner: {}", logId(), newOwner, origOwner);
- if(!Objects.equal(origOwner, newOwner)) {
- boolean isOwner = Objects.equal(localMemberName, newOwner);
- boolean wasOwner = Objects.equal(localMemberName, origOwner);
- if(isOwner || wasOwner) {
- Entity entity = createEntity(change.getRootPath());
+ if (!Objects.equals(origOwner, newOwner)) {
+ boolean isOwner = localMemberName.equals(newOwner);
+ boolean wasOwner = localMemberName.equals(origOwner);
+ boolean hasOwner = !Strings.isNullOrEmpty(newOwner);
- LOG.debug("{}: Calling notifyEntityOwnershipListeners: entity: {}, wasOwner: {}, isOwner: {}",
- logId(), entity, wasOwner, isOwner);
+ DOMEntity entity = createEntity(change.getRootPath());
- listenerSupport.notifyEntityOwnershipListeners(entity, wasOwner, isOwner);
- }
+ LOG.debug(
+ "{}: Calling notifyEntityOwnershipListeners: entity: {}, wasOwner: {}, isOwner: {}, hasOwner: {}",
+ logId(), entity, wasOwner, isOwner, hasOwner);
+
+ publisher.notifyEntityOwnershipListeners(entity, wasOwner, isOwner, hasOwner);
}
}
}
- private String extractOwner(LeafNode<?> ownerLeaf) {
- Object value = ownerLeaf.getValue();
- return value != null ? value.toString() : null;
- }
-
private String logId() {
- return listenerSupport.getLogId();
+ return publisher.getLogId();
}
}