--- /dev/null
+/*
+ * Copyright (c) 2014 Cisco 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.md.sal.dom.store.impl.tree.data;
+
+import static com.google.common.base.Preconditions.checkState;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.StoreTreeNode;
+import org.opendaylight.yangtools.concepts.Identifiable;
+import org.opendaylight.yangtools.concepts.Immutable;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
+
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.primitives.UnsignedLong;
+
+public class StoreMetadataNode implements Immutable, Identifiable<PathArgument>, StoreTreeNode<StoreMetadataNode> {
+
+ private final UnsignedLong nodeVersion;
+ private final UnsignedLong subtreeVersion;
+ private final NormalizedNode<?, ?> data;
+
+ private final Map<PathArgument, StoreMetadataNode> children;
+
+ /**
+ *
+ * @param data
+ * @param nodeVersion
+ * @param subtreeVersion
+ * @param children Map of children, must not be modified externally
+ */
+ protected StoreMetadataNode(final NormalizedNode<?, ?> data, final UnsignedLong nodeVersion,
+ final UnsignedLong subtreeVersion, final Map<PathArgument, StoreMetadataNode> children) {
+ this.nodeVersion = nodeVersion;
+ this.subtreeVersion = subtreeVersion;
+ this.data = data;
+ this.children = Preconditions.checkNotNull(children);
+ }
+
+ public static StoreMetadataNode createEmpty(final NormalizedNode<?, ?> data) {
+ return new StoreMetadataNode(data, UnsignedLong.ZERO, UnsignedLong.ZERO,
+ Collections.<PathArgument, StoreMetadataNode>emptyMap());
+ }
+
+ public StoreMetadataNode(final NormalizedNode<?, ?> data, final UnsignedLong nodeVersion,
+ final UnsignedLong subtreeVersion) {
+ this(data, nodeVersion, subtreeVersion, Collections.<PathArgument, StoreMetadataNode>emptyMap());
+ }
+
+ public static Builder builder() {
+ return new Builder();
+ }
+
+ public static Builder builder(StoreMetadataNode node) {
+ return new Builder(node);
+ }
+
+ public UnsignedLong getNodeVersion() {
+ return this.nodeVersion;
+ }
+
+ @Override
+ public PathArgument getIdentifier() {
+ return data.getIdentifier();
+ }
+
+ public UnsignedLong getSubtreeVersion() {
+ return subtreeVersion;
+ }
+
+ public NormalizedNode<?, ?> getData() {
+ return this.data;
+ }
+
+ @Override
+ public Optional<StoreMetadataNode> getChild(final PathArgument key) {
+ return Optional.fromNullable(children.get(key));
+ }
+
+ @Override
+ public String toString() {
+ return "StoreMetadataNode [identifier=" + getIdentifier() + ", nodeVersion=" + nodeVersion + "]";
+ }
+
+ public static Optional<UnsignedLong> getVersion(final Optional<StoreMetadataNode> currentMetadata) {
+ if (currentMetadata.isPresent()) {
+ return Optional.of(currentMetadata.get().getNodeVersion());
+ }
+ return Optional.absent();
+ }
+
+ public static Optional<StoreMetadataNode> getChild(final Optional<StoreMetadataNode> parent,
+ final PathArgument child) {
+ if (parent.isPresent()) {
+ return parent.get().getChild(child);
+ }
+ return Optional.absent();
+ }
+
+ public static final StoreMetadataNode createRecursively(final NormalizedNode<?, ?> node,
+ final UnsignedLong nodeVersion, final UnsignedLong subtreeVersion) {
+ Builder builder = builder() //
+ .setNodeVersion(nodeVersion) //
+ .setSubtreeVersion(subtreeVersion) //
+ .setData(node);
+ if (node instanceof NormalizedNodeContainer<?, ?, ?>) {
+
+ @SuppressWarnings("unchecked")
+ NormalizedNodeContainer<?, ?, NormalizedNode<?, ?>> nodeContainer = (NormalizedNodeContainer<?, ?, NormalizedNode<?, ?>>) node;
+ for (NormalizedNode<?, ?> subNode : nodeContainer.getValue()) {
+ builder.add(createRecursively(subNode, nodeVersion, subtreeVersion));
+ }
+ }
+ return builder.build();
+ }
+
+ public static class Builder {
+
+ private UnsignedLong nodeVersion;
+ private UnsignedLong subtreeVersion;
+ private NormalizedNode<?, ?> data;
+ private Map<PathArgument, StoreMetadataNode> children;
+ private boolean dirty = false;
+
+ private Builder() {
+ children = new HashMap<>();
+ }
+
+ public Builder(StoreMetadataNode node) {
+ children = new HashMap<>(node.children);
+ }
+
+ public UnsignedLong getVersion() {
+ return nodeVersion;
+
+ }
+
+ public Builder setNodeVersion(final UnsignedLong version) {
+ this.nodeVersion = version;
+ return this;
+ }
+
+ public Builder setSubtreeVersion(final UnsignedLong version) {
+ this.subtreeVersion = version;
+ return this;
+ }
+
+ public Builder setData(final NormalizedNode<?, ?> data) {
+ this.data = data;
+ return this;
+ }
+
+ public Builder add(final StoreMetadataNode node) {
+ if (dirty) {
+ children = new HashMap<>(children);
+ dirty = false;
+ }
+ children.put(node.getIdentifier(), node);
+ return this;
+ }
+
+ public Builder remove(final PathArgument id) {
+ if (dirty) {
+ children = new HashMap<>(children);
+ dirty = false;
+ }
+ children.remove(id);
+ return this;
+ }
+
+ public StoreMetadataNode build() {
+ checkState(data != null, "Data node should not be null.");
+ checkState(subtreeVersion.compareTo(nodeVersion) >= 0,
+ "Subtree version must be equals or greater than node version.");
+ dirty = true;
+ return new StoreMetadataNode(data, nodeVersion, subtreeVersion, children);
+ }
+ }
+
+ public static StoreMetadataNode createRecursively(final NormalizedNode<?, ?> node, final UnsignedLong version) {
+ return createRecursively(node, version, version);
+ }
+}
Code Review / controller.git / blobdiff