/* * 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.yangtools.yang.data.impl.schema; import com.google.common.base.Preconditions; import java.util.ArrayDeque; import java.util.Collection; import java.util.Deque; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument; import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode; import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode; import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode; import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode; import org.opendaylight.yangtools.yang.data.api.schema.MapNode; import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; import org.opendaylight.yangtools.yang.data.api.schema.OrderedMapNode; import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode; import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode; import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter; import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeAttrBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableAugmentationNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableChoiceNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableMapEntryNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableMapNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableOrderedMapNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableUnkeyedListEntryNodeBuilder; import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableUnkeyedListNodeBuilder; /** * * Implementation of {@link NormalizedNodeStreamWriter}, which constructs * immutable instances of {@link NormalizedNode}s. *
* This writer supports two modes of behaviour one is using {@link #from(NormalizedNodeResult)}
* where resulting NormalizedNode will be stored in supplied result object.
*
* Other mode of operation is using {@link #from(NormalizedNodeContainerBuilder)},
* where all created nodes will be written to this builder.
*
*
*/
public class ImmutableNormalizedNodeStreamWriter implements NormalizedNodeStreamWriter {
@SuppressWarnings("rawtypes")
private final Deque
* Type of supplied {@link NormalizedNodeContainerBuilder} affects,
* which events could be emitted in order to ensure proper construction of
* data.
*
* @param builder Builder to which data will be written.
* @return {@link NormalizedNodeStreamWriter} which writes data
*/
public static final NormalizedNodeStreamWriter from(final NormalizedNodeContainerBuilder, ?, ?, ?> builder) {
return new ImmutableNormalizedNodeStreamWriter(builder);
}
/**
*
* Creates a {@link NormalizedNodeStreamWriter} which creates one instance of top
* level {@link NormalizedNode} (type of NormalizedNode) is determined by first
* start event.
*
* Result is built when {@link #endNode()} associated with that start event
* is emitted.
*
* Writer properly creates also nested {@link NormalizedNode} instances,
* if their are supported inside the scope of first event.
*
* This method is useful for clients, which knows there will be one
* top level node written, but does not know which type of {@link NormalizedNode}
* will be written.
*
* @param result {@link NormalizedNodeResult} object which will hold result value.
* @return {@link NormalizedNodeStreamWriter} which will write item to supplied result holder.
*/
public static final NormalizedNodeStreamWriter from(final NormalizedNodeResult result) {
return new ImmutableNormalizedNodeStreamWriter(new NormalizedNodeResultBuilder(result));
}
@SuppressWarnings("rawtypes")
private NormalizedNodeContainerBuilder getCurrent() {
return builders.peek();
}
@SuppressWarnings("rawtypes")
private void enter(final NormalizedNodeContainerBuilder next) {
builders.push(next);
}
@SuppressWarnings("unchecked")
private void writeChild(final NormalizedNode, ?> child) {
getCurrent().addChild(child);
}
@Override
@SuppressWarnings({"rawtypes","unchecked"})
public void endNode() {
final NormalizedNodeContainerBuilder finishedBuilder = builders.poll();
Preconditions.checkState(finishedBuilder != null, "Node which should be closed does not exists.");
NormalizedNodeContainerBuilder current = getCurrent();
Preconditions.checkState(current != null, "Reached top level node, which could not be closed in this writer.");
NormalizedNode