1 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
4 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
5 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
6 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
7 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
8 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeUtils;
9 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
11 import com.google.common.base.Optional;
12 import com.google.common.base.Preconditions;
14 final class InMemoryDataTreeSnapshot implements DataTreeSnapshot {
15 private final RootModificationApplyOperation applyOper;
16 private final SchemaContext schemaContext;
17 private final TreeNode rootNode;
19 InMemoryDataTreeSnapshot(final SchemaContext schemaContext, final TreeNode rootNode,
20 final RootModificationApplyOperation applyOper) {
21 this.schemaContext = Preconditions.checkNotNull(schemaContext);
22 this.rootNode = Preconditions.checkNotNull(rootNode);
23 this.applyOper = Preconditions.checkNotNull(applyOper);
26 TreeNode getRootNode() {
30 SchemaContext getSchemaContext() {
35 public Optional<NormalizedNode<?, ?>> readNode(final InstanceIdentifier path) {
36 return NormalizedNodeUtils.findNode(rootNode.getData(), path);
40 public InMemoryDataTreeModification newModification() {
41 return new InMemoryDataTreeModification(this, applyOper);
45 public String toString() {
46 return rootNode.getSubtreeVersion().toString();