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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.fd.honeycomb.data.impl;
import static com.google.common.base.Preconditions.checkState;
import java.util.AbstractMap;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
/**
* Basic implementation for nodes that are not considered modifications but their children could be
*/
abstract class DelegatingRewriteDeleteProducer implements RewriteDeleteProducer {
private final NormalizedNodeRewriteDeleteRegistry baseRewriteProducer;
DelegatingRewriteDeleteProducer(@Nonnull final NormalizedNodeRewriteDeleteRegistry baseRewriteProducer) {
this.baseRewriteProducer = baseRewriteProducer;
}
@Override
public Collection<NormalizedNodeUpdate> normalizedUpdates(@Nonnull final YangInstanceIdentifier topLevelIdentifier,
@Nonnull final Map.Entry<YangInstanceIdentifier.PathArgument, DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>> entry) {
// just delegates to lower level
checkState(entry.getValue() instanceof DataContainerNode, "Unable to extract children");
final Collection<DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>> value =
DataContainerNode.class.cast(entry.getValue()).getValue();
return value.stream()
.map(DataContainerChild.class::cast)
.flatMap(node -> baseRewriteProducer
.normalizedUpdates(childYangId(topLevelIdentifier, entry), childMapEntry(node)).stream())
.collect(Collectors.toList());
}
private static AbstractMap.SimpleEntry<YangInstanceIdentifier.PathArgument, DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>> childMapEntry(
final DataContainerChild node) {
return new HashMap.SimpleEntry<YangInstanceIdentifier.PathArgument, DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>>(
node.getIdentifier(), node);
}
private static YangInstanceIdentifier childYangId(@Nonnull final YangInstanceIdentifier topLevelIdentifier,
@Nonnull final Map.Entry<YangInstanceIdentifier.PathArgument, DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>> entry) {
return YangInstanceIdentifier.builder(topLevelIdentifier)
.node(entry.getKey()).build();
}
}
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