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.controller.md.sal.dom.store.impl.tree;
10 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.AugmentationIdentifier;
11 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifierWithPredicates;
12 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
13 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
14 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
16 import com.google.common.base.Strings;
19 * Data store tree manipulation utilities.
21 public final class StoreUtils {
22 private static final int STRINGTREE_INDENT = 4;
24 private StoreUtils() {
25 throw new UnsupportedOperationException("Utility class should not be instantiated");
29 * Convert a data subtree under a node into a human-readable string format.
31 * @param node Data subtree root
32 * @return String containing a human-readable form of the subtree.
34 public static String toStringTree(final NormalizedNode<?, ?> node) {
35 final StringBuilder builder = new StringBuilder();
36 toStringTree(builder, node, 0);
37 return builder.toString();
40 private static void toStringTree(final StringBuilder builder, final NormalizedNode<?, ?> node, final int offset) {
41 final String prefix = Strings.repeat(" ", offset);
43 builder.append(prefix).append(toStringTree(node.getIdentifier()));
44 if (node instanceof NormalizedNodeContainer<?, ?, ?>) {
45 final NormalizedNodeContainer<?, ?, ?> container = (NormalizedNodeContainer<?, ?, ?>) node;
47 builder.append(" {\n");
48 for (NormalizedNode<?, ?> child : container.getValue()) {
49 toStringTree(builder, child, offset + STRINGTREE_INDENT);
52 builder.append(prefix).append('}');
54 builder.append(' ').append(node.getValue());
59 private static String toStringTree(final PathArgument identifier) {
60 if (identifier instanceof NodeIdentifierWithPredicates) {
61 StringBuilder builder = new StringBuilder();
62 builder.append(identifier.getNodeType().getLocalName());
63 builder.append(((NodeIdentifierWithPredicates) identifier).getKeyValues().values());
64 return builder.toString();
65 } else if (identifier instanceof AugmentationIdentifier) {
66 return "augmentation";
68 return identifier.getNodeType().getLocalName();