/*
* Copyright (c) 2013 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.yangtools.yang.data.impl.schema.builder.impl;
import com.google.common.base.Optional;
import com.google.common.collect.Maps;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.opendaylight.yangtools.concepts.Immutable;
import org.opendaylight.yangtools.util.MapAdaptor;
import org.opendaylight.yangtools.util.UnmodifiableCollection;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
import org.opendaylight.yangtools.yang.data.impl.schema.nodes.AbstractImmutableNormalizedNode;
import org.opendaylight.yangtools.yang.data.impl.schema.nodes.AbstractImmutableNormalizedValueNode;
public class ImmutableLeafSetNodeBuilder<T> implements ListNodeBuilder<T, LeafSetEntryNode<T>> {
private static final int DEFAULT_CAPACITY = 4;
private final Map<NodeWithValue, LeafSetEntryNode<T>> value;
private NodeIdentifier nodeIdentifier;
protected ImmutableLeafSetNodeBuilder() {
value = new HashMap<>(DEFAULT_CAPACITY);
}
protected ImmutableLeafSetNodeBuilder(final int sizeHint) {
if (sizeHint >= 0) {
value = Maps.newHashMapWithExpectedSize(sizeHint);
} else {
value = new HashMap<>(DEFAULT_CAPACITY);
}
}
protected ImmutableLeafSetNodeBuilder(final ImmutableLeafSetNode<T> node) {
nodeIdentifier = node.getIdentifier();
value = MapAdaptor.getDefaultInstance().takeSnapshot(node.children);
}
public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create() {
return new ImmutableLeafSetNodeBuilder<>();
}
public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create(final int sizeHint) {
return new ImmutableLeafSetNodeBuilder<>(sizeHint);
}
public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create(final LeafSetNode<T> node) {
if (!(node instanceof ImmutableLeafSetNode<?>)) {
throw new UnsupportedOperationException(String.format("Cannot initialize from class %s", node.getClass()));
}
return new ImmutableLeafSetNodeBuilder<>((ImmutableLeafSetNode<T>) node);
}
@Override
public ListNodeBuilder<T, LeafSetEntryNode<T>> withChild(final LeafSetEntryNode<T> child) {
this.value.put(child.getIdentifier(), child);
return this;
}
@Override
public ListNodeBuilder<T, LeafSetEntryNode<T>> withoutChild(final PathArgument key) {
this.value.remove(key);
return this;
}
@Override
public LeafSetNode<T> build() {
return new ImmutableLeafSetNode<>(nodeIdentifier, MapAdaptor.getDefaultInstance().optimize(value));
}
@Override
public ListNodeBuilder<T, LeafSetEntryNode<T>> withNodeIdentifier(final NodeIdentifier nodeIdentifier) {
this.nodeIdentifier = nodeIdentifier;
return this;
}
@Override
public ListNodeBuilder<T, LeafSetEntryNode<T>> withValue(final Collection<LeafSetEntryNode<T>> value) {
for (final LeafSetEntryNode<T> leafSetEntry : value) {
withChild(leafSetEntry);
}
return this;
}
@Override
public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value, final Map<QName, String> attributes) {
final ImmutableLeafSetEntryNodeBuilder<T> b = ImmutableLeafSetEntryNodeBuilder.create();
b.withNodeIdentifier(new NodeWithValue<>(nodeIdentifier.getNodeType(), value));
b.withValue(value);
b.withAttributes(attributes);
return withChild(b.build());
}
@Override
public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value) {
return withChildValue(value, Collections.emptyMap());
}
protected final static class ImmutableLeafSetNode<T> extends
AbstractImmutableNormalizedValueNode<NodeIdentifier, Collection<LeafSetEntryNode<T>>> implements
Immutable, LeafSetNode<T> {
private final Map<NodeWithValue, LeafSetEntryNode<T>> children;
ImmutableLeafSetNode(final NodeIdentifier nodeIdentifier, final Map<NodeWithValue, LeafSetEntryNode<T>> children) {
super(nodeIdentifier, UnmodifiableCollection.create(children.values()));
this.children = children;
}
@Override
public Optional<LeafSetEntryNode<T>> getChild(final NodeWithValue child) {
return Optional.fromNullable(children.get(child));
}
@Override
protected int valueHashCode() {
return children.hashCode();
}
@Override
protected boolean valueEquals(final AbstractImmutableNormalizedNode<?, ?> other) {
return children.equals(((ImmutableLeafSetNode<?>) other).children);
}
}
@Override
public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>> addChild(
final LeafSetEntryNode<T> child) {
return withChild(child);
}
@Override
public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>> removeChild(
final PathArgument key) {
return withoutChild(key);
}
}