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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.impl.read;
import com.google.common.annotations.Beta;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.read.Reader;
import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
import io.fd.honeycomb.translate.util.read.AbstractGenericReader;
import io.fd.honeycomb.translate.util.read.ReflexiveReaderCustomizer;
import javax.annotation.Nonnull;
import javax.annotation.concurrent.ThreadSafe;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Composite implementation of {@link Reader}.
*/
@Beta
@ThreadSafe
public class GenericReader<C extends DataObject, B extends Builder<C>>
extends AbstractGenericReader<C, B>
implements Reader<C, B> {
protected final ReaderCustomizer<C, B> customizer;
/**
* Create a new {@link GenericReader}.
*
* @param id Instance identifier for managed data type
* @param customizer Customizer instance to customize this generic reader
*/
public GenericReader(@Nonnull final InstanceIdentifier<C> id,
@Nonnull final ReaderCustomizer<C, B> customizer) {
super(id);
this.customizer = customizer;
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<C> id,
@Nonnull final B builder,
@Nonnull final ReadContext ctx) throws ReadFailedException {
try {
customizer.readCurrentAttributes(id, builder, ctx);
} catch (RuntimeException e) {
throw new ReadFailedException(id, e);
}
}
@Nonnull
@Override
public B getBuilder(@Nonnull final InstanceIdentifier<C> id) {
return customizer.getBuilder(id);
}
@Override
public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final C readValue) {
customizer.merge(parentBuilder, readValue);
}
@Override
public boolean isPresent(final InstanceIdentifier<C> id, final C built, final ReadContext ctx) {
return customizer.isPresent(id, built, ctx);
}
public static <C extends DataObject, B extends Builder<C>> Reader<C, B> createReflexive(
final InstanceIdentifier<C> id, Class<B> builderClass) {
return new GenericReader<>(id, new ReflexiveReaderCustomizer<>(id.getTargetType(), builderClass));
}
}
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