2 * Copyright (c) 2016 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.mdsal.dom.store.inmemory;
11 import com.google.common.base.Preconditions;
12 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
14 import org.opendaylight.yangtools.yang.data.api.schema.tree.CursorAwareDataTreeModification;
15 import org.opendaylight.yangtools.yang.data.api.schema.tree.CursorAwareDataTreeSnapshot;
16 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
17 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModificationCursor;
19 class ShardRootModificationContext {
21 private final DOMDataTreeIdentifier identifier;
22 private final CursorAwareDataTreeSnapshot snapshot;
23 private CursorAwareDataTreeModification modification = null;
24 private DataTreeModificationCursorAdaptor cursor = null;
26 ShardRootModificationContext(final DOMDataTreeIdentifier identifier,
27 final CursorAwareDataTreeSnapshot snapshot) {
28 this.identifier = Preconditions.checkNotNull(identifier);
29 this.snapshot = Preconditions.checkNotNull(snapshot);
32 public DOMDataTreeIdentifier getIdentifier() {
36 DataTreeModificationCursorAdaptor cursor() {
38 if (modification == null) {
39 modification = (CursorAwareDataTreeModification) snapshot.newModification();
42 // FIXME: Should there be non-root path?
43 DataTreeModificationCursor dataTreeCursor =
44 modification.createCursor(YangInstanceIdentifier.EMPTY);
45 cursor = DataTreeModificationCursorAdaptor.of(dataTreeCursor);
50 boolean isModified() {
51 return modification != null;
54 DataTreeModification ready() {
59 DataTreeModification ret = null;
60 if (modification != null) {