2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.cluster.datastore.entityownership;
11 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_OWNERS_PATH;
12 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_OWNER_QNAME;
13 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_QNAME;
14 import org.opendaylight.controller.cluster.datastore.ShardDataTree;
15 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.clustering.entity.owners.rev150804.entity.owners.EntityType;
17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
18 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
20 public abstract class AbstractEntityOwnerChangeListener implements DOMDataTreeChangeListener {
21 private static final YangInstanceIdentifier EOS_PATH = YangInstanceIdentifier.builder(ENTITY_OWNERS_PATH)
22 .node(EntityType.QNAME).node(EntityType.QNAME).node(ENTITY_QNAME).node(ENTITY_QNAME)
23 .node(ENTITY_OWNER_QNAME).build();
25 void init(ShardDataTree shardDataTree) {
26 shardDataTree.registerTreeChangeListener(EOS_PATH, this);
29 protected static String extractOwner(LeafNode<?> ownerLeaf) {
30 Object value = ownerLeaf.getValue();
31 return value != null ? value.toString() : null;