+++ /dev/null
-/*
- * Copyright (c) 2015 Brocade Communications Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.controller.cluster.datastore.entityownership;
-
-import static com.google.common.base.Verify.verifyNotNull;
-import static java.util.Objects.requireNonNull;
-import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.createEntity;
-
-import com.google.common.base.Strings;
-import java.util.Collection;
-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;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Listens for entity owner changes and notifies the EntityOwnershipListenerSupport appropriately.
- *
- * @author Thomas Pantelis
- */
-class EntityOwnerChangeListener extends AbstractEntityOwnerChangeListener {
- private static final Logger LOG = LoggerFactory.getLogger(EntityOwnerChangeListener.class);
-
- private final String localMemberName;
- private final EntityOwnershipChangePublisher publisher;
-
- EntityOwnerChangeListener(final MemberName localMemberName, final EntityOwnershipChangePublisher publisher) {
- this.localMemberName = verifyNotNull(localMemberName.getName());
- this.publisher = requireNonNull(publisher);
- }
-
- @Override
- 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());
-
- String newOwner = extractOwner(ownerLeaf);
-
- String origOwner = null;
- Optional<NormalizedNode<?, ?>> dataBefore = changeRoot.getDataBefore();
- if (dataBefore.isPresent()) {
- origOwner = extractOwner((LeafNode<?>) changeRoot.getDataBefore().get());
- }
-
- LOG.debug("{}: New owner: {}, Original owner: {}", logId(), newOwner, origOwner);
-
- if (!Objects.equals(origOwner, newOwner)) {
- boolean isOwner = localMemberName.equals(newOwner);
- boolean wasOwner = localMemberName.equals(origOwner);
- boolean hasOwner = !Strings.isNullOrEmpty(newOwner);
-
- DOMEntity entity = createEntity(change.getRootPath());
-
- LOG.debug(
- "{}: Calling notifyEntityOwnershipListeners: entity: {}, wasOwner: {}, isOwner: {}, hasOwner: {}",
- logId(), entity, wasOwner, isOwner, hasOwner);
-
- publisher.notifyEntityOwnershipListeners(entity, wasOwner, isOwner, hasOwner);
- }
- }
- }
-
- private String logId() {
- return publisher.getLogId();
- }
-}