*/
package org.opendaylight.controller.cluster.datastore.entityownership;
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_ID_QNAME;
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_OWNERS_PATH;
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_OWNER_NODE_ID;
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_QNAME;
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_TYPE_QNAME;
+import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.createEntity;
import com.google.common.base.Objects;
import com.google.common.base.Optional;
import java.util.Collection;
-import java.util.Map.Entry;
-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.common.QName;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
-import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
+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;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
*
* @author Thomas Pantelis
*/
-class EntityOwnerChangeListener implements DOMDataTreeChangeListener {
+class EntityOwnerChangeListener extends AbstractEntityOwnerChangeListener {
private static final Logger LOG = LoggerFactory.getLogger(EntityOwnerChangeListener.class);
private final String 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).build(), this);
- }
-
@Override
public void onDataTreeChanged(Collection<DataTreeCandidate> changes) {
for(DataTreeCandidate change: changes) {
DataTreeCandidateNode changeRoot = change.getRootNode();
- MapEntryNode entityNode = (MapEntryNode) changeRoot.getDataAfter().get();
+ LeafNode<?> ownerLeaf = (LeafNode<?>) changeRoot.getDataAfter().get();
- LOG.debug("Entity node changed: {}, {}", changeRoot.getModificationType(), change.getRootPath());
+ LOG.debug("{}: Entity node changed: {}, {}", logId(), changeRoot.getModificationType(), change.getRootPath());
- String newOwner = extractOwner(entityNode);
+ String newOwner = extractOwner(ownerLeaf);
String origOwner = null;
Optional<NormalizedNode<?, ?>> dataBefore = changeRoot.getDataBefore();
if(dataBefore.isPresent()) {
- MapEntryNode origEntityNode = (MapEntryNode) changeRoot.getDataBefore().get();
- origOwner = extractOwner(origEntityNode);
+ origOwner = extractOwner((LeafNode<?>) changeRoot.getDataBefore().get());
}
- LOG.debug("New owner: {}, Original owner: {}", newOwner, origOwner);
+ 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());
+ boolean hasOwner = newOwner != null && !newOwner.toString().isEmpty();
- LOG.debug("Calling notifyEntityOwnershipListeners: entity: {}, wasOwner: {}, isOwner: {}",
- entity, wasOwner, isOwner);
+ Entity entity = createEntity(change.getRootPath());
- listenerSupport.notifyEntityOwnershipListeners(entity, wasOwner, isOwner);
- }
- }
- }
- }
+ LOG.debug("{}: Calling notifyEntityOwnershipListeners: entity: {}, wasOwner: {}, isOwner: {}, hasOwner: {}",
+ logId(), entity, wasOwner, isOwner, hasOwner);
- private Entity createEntity(YangInstanceIdentifier entityPath) {
- String entityType = null;
- YangInstanceIdentifier entityId = null;
- for(PathArgument pathArg: entityPath.getPathArguments()) {
- if(pathArg instanceof NodeIdentifierWithPredicates) {
- NodeIdentifierWithPredicates nodeKey = (NodeIdentifierWithPredicates) pathArg;
- Entry<QName, Object> key = nodeKey.getKeyValues().entrySet().iterator().next();
- if(ENTITY_TYPE_QNAME.equals(key.getKey())) {
- entityType = key.getValue().toString();
- } else if(ENTITY_ID_QNAME.equals(key.getKey())) {
- entityId = (YangInstanceIdentifier) key.getValue();
- }
+ listenerSupport.notifyEntityOwnershipListeners(entity, wasOwner, isOwner, hasOwner);
}
}
-
- return new Entity(entityType, entityId);
}
- private String extractOwner(MapEntryNode entityNode) {
- Optional<DataContainerChild<? extends PathArgument, ?>> ownerNode = entityNode.getChild(ENTITY_OWNER_NODE_ID);
- return ownerNode.isPresent() ? (String) ownerNode.get().getValue() : null;
+ private String logId() {
+ return listenerSupport.getLogId();
}
}