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/*
* Copyright (c) 2016 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.translate.util.read;
import com.google.common.base.Optional;
import io.fd.honeycomb.translate.read.ListReader;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.read.Reader;
import java.util.List;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.Identifiable;
import org.opendaylight.yangtools.yang.binding.Identifier;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* A trait of a delegating reader. Delegates all the calls to its delegate.
*/
public interface DelegatingReader<D extends DataObject, B extends Builder<D>> extends Reader<D, B> {
Reader<D, B> getDelegate();
@Override
@Nonnull
default Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id,
@Nonnull final ReadContext ctx) throws ReadFailedException {
return getDelegate().read(id, ctx);
}
@Override
default void readCurrentAttributes(@Nonnull final InstanceIdentifier<D> id,
@Nonnull final B builder,
@Nonnull final ReadContext ctx) throws ReadFailedException {
getDelegate().readCurrentAttributes(id, builder, ctx);
}
@Override
@Nonnull
default B getBuilder(final InstanceIdentifier<D> id) {
return getDelegate().getBuilder(id);
}
@Override
default void merge(@Nonnull final Builder<? extends DataObject> parentBuilder,
@Nonnull final D readValue) {
getDelegate().merge(parentBuilder, readValue);
}
@Override
default boolean isPresent(InstanceIdentifier<D> id, D built, final ReadContext ctx) throws ReadFailedException {
return getDelegate().isPresent(id, built, ctx);
}
@Override
@Nonnull
default InstanceIdentifier<D> getManagedDataObjectType() {
return getDelegate().getManagedDataObjectType();
}
/**
* ListReader specific delegating trait.
*/
interface DelegatingListReader<D extends DataObject & Identifiable<K>, K extends Identifier<D>, B extends Builder<D>>
extends DelegatingReader<D, B>, ListReader<D, K, B> {
@Override
ListReader<D, K, B> getDelegate();
@Override
default List<K> getAllIds(@Nonnull InstanceIdentifier<D> id, @Nonnull ReadContext ctx)
throws ReadFailedException {
return getDelegate().getAllIds(id, ctx);
}
@Nonnull
@Override
default List<D> readList(@Nonnull final InstanceIdentifier<D> id, @Nonnull final ReadContext ctx)
throws ReadFailedException {
return getDelegate().readList(id, ctx);
}
@Override
default void merge(@Nonnull final Builder<? extends DataObject> builder,
@Nonnull final List<D> readData) {
getDelegate().merge(builder, readData);
}
@Override
default void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final D readValue) {
getDelegate().merge(parentBuilder, readValue);
}
}
}
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