diff options
Diffstat (limited to 'infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java')
-rw-r--r-- | infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java new file mode 100644 index 000000000..513639610 --- /dev/null +++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/DelegatingReader.java @@ -0,0 +1,103 @@ +/* + * 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(); + + @Nonnull + default Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id, + @Nonnull final ReadContext ctx) throws ReadFailedException { + return getDelegate().read(id, ctx); + } + + default void readCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, + @Nonnull final B builder, + @Nonnull final ReadContext ctx) throws ReadFailedException { + getDelegate().readCurrentAttributes(id, builder, ctx); + } + + @Nonnull + default B getBuilder(final InstanceIdentifier<D> id) { + return getDelegate().getBuilder(id); + } + + 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); + } + + @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> { + + 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); + } + } +} |