/*
* Copyright (c) 2015 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.mdsal.binding.dom.adapter;
import static java.util.Objects.requireNonNull;
import com.google.common.base.MoreObjects;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.mdsal.binding.api.DataObjectModification;
import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
import org.opendaylight.mdsal.binding.api.DataTreeModification;
import org.opendaylight.mdsal.binding.dom.codec.api.BindingDataObjectCodecTreeNode;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.mdsal.dom.api.DOMDataTreeCandidate;
import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
/**
* Lazily translated {@link DataTreeModification} based on {@link DataTreeCandidate}.
*
*
* {@link DataTreeModification} represents Data tree change event, but whole tree is not translated or resolved eagerly,
* but only child nodes which are directly accessed by user of data object modification.
*/
final class LazyDataTreeModification implements DataTreeModification {
private final @NonNull DataTreeIdentifier path;
private final @NonNull DataObjectModification rootNode;
private LazyDataTreeModification(final DataTreeIdentifier path, final DataObjectModification modification) {
this.path = requireNonNull(path);
this.rootNode = requireNonNull(modification);
}
@SuppressWarnings({"unchecked", "rawtypes"})
static DataTreeModification create(final CurrentAdapterSerializer serializer,
final DataTreeCandidate domChange, final LogicalDatastoreType datastoreType) {
final InstanceIdentifier> bindingPath = serializer.coerceInstanceIdentifier(domChange.getRootPath());
final BindingDataObjectCodecTreeNode> codec = serializer.getSubtreeCodec(bindingPath);
final DataTreeIdentifier> path = DataTreeIdentifier.create(datastoreType, bindingPath);
return new LazyDataTreeModification(path, LazyDataObjectModification.create(codec, domChange.getRootNode()));
}
@SuppressWarnings({"unchecked", "rawtypes"})
static DataTreeModification create(final CurrentAdapterSerializer serializer,
final DOMDataTreeCandidate candidate) {
final DOMDataTreeIdentifier domRootPath = candidate.getRootPath();
final InstanceIdentifier> bindingPath = serializer.coerceInstanceIdentifier(domRootPath.getRootIdentifier());
final BindingDataObjectCodecTreeNode> codec = serializer.getSubtreeCodec(bindingPath);
return new LazyDataTreeModification(DataTreeIdentifier.create(domRootPath.getDatastoreType(), bindingPath),
LazyDataObjectModification.create(codec, candidate.getRootNode()));
}
static @NonNull List> from(final CurrentAdapterSerializer codec,
final List domChanges, final LogicalDatastoreType datastoreType) {
final List> result = new ArrayList<>(domChanges.size());
for (final DataTreeCandidate domChange : domChanges) {
result.add(LazyDataTreeModification.create(codec, domChange, datastoreType));
}
return result;
}
@Override
public DataObjectModification getRootNode() {
return rootNode;
}
@Override
public DataTreeIdentifier getRootPath() {
return path;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this).add("path", path).add("rootNode", rootNode).toString();
}
}