2 * Copyright (c) 2014 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
8 package org.opendaylight.yangtools.yang.data.impl.schema.tree;
10 import com.google.common.base.Optional;
11 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
12 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
13 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
14 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
15 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
16 import org.opendaylight.yangtools.yang.data.api.schema.tree.IncorrectDataStructureException;
17 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
18 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNodeFactory;
19 import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.Version;
20 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
21 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
22 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
24 import static com.google.common.base.Preconditions.checkArgument;
26 abstract class ValueNodeModificationStrategy<T extends DataSchemaNode> extends SchemaAwareApplyOperation {
28 private final T schema;
29 private final Class<? extends NormalizedNode<?, ?>> nodeClass;
31 protected ValueNodeModificationStrategy(final T schema, final Class<? extends NormalizedNode<?, ?>> nodeClass) {
34 this.nodeClass = nodeClass;
38 protected void verifyWrittenStructure(final NormalizedNode<?, ?> writtenValue) {
39 checkArgument(nodeClass.isInstance(writtenValue), "Node should must be of type %s", nodeClass);
43 public Optional<ModificationApplyOperation> getChild(final PathArgument child) {
44 throw new UnsupportedOperationException("Node " + schema.getPath()
45 + "is leaf type node. Child nodes not allowed");
49 protected TreeNode applySubtreeChange(final ModifiedNode modification,
50 final TreeNode currentMeta, final Version version) {
51 throw new UnsupportedOperationException("Node " + schema.getPath()
52 + "is leaf type node. Subtree change is not allowed.");
56 protected TreeNode applyMerge(final ModifiedNode modification, final TreeNode currentMeta,
57 final Version version) {
58 // Just overwrite whatever was there
59 return applyWrite(modification, null, version);
63 protected TreeNode applyWrite(final ModifiedNode modification,
64 final Optional<TreeNode> currentMeta, final Version version) {
65 return TreeNodeFactory.createTreeNode(modification.getWrittenValue(), version);
69 protected void checkSubtreeModificationApplicable(final YangInstanceIdentifier path, final NodeModification modification,
70 final Optional<TreeNode> current) throws IncorrectDataStructureException {
71 throw new IncorrectDataStructureException(path, "Subtree modification is not allowed.");
74 public static class LeafSetEntryModificationStrategy extends ValueNodeModificationStrategy<LeafListSchemaNode> {
75 @SuppressWarnings({ "unchecked", "rawtypes" })
76 protected LeafSetEntryModificationStrategy(final LeafListSchemaNode schema) {
77 super(schema, (Class) LeafSetEntryNode.class);
81 public static class LeafModificationStrategy extends ValueNodeModificationStrategy<LeafSchemaNode> {
82 @SuppressWarnings({ "unchecked", "rawtypes" })
83 protected LeafModificationStrategy(final LeafSchemaNode schema) {
84 super(schema, (Class) LeafNode.class);