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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.write;
import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.translate.util.RWUtils;
import io.fd.honeycomb.translate.util.write.AbstractGenericWriter;
import io.fd.honeycomb.translate.write.ListWriter;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
import javax.annotation.Nonnull;
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;
/**
* Generic list node writer with customizable behavior thanks to injected customizer.
*/
public final class GenericListWriter<D extends DataObject & Identifiable<K>, K extends Identifier<D>> extends
AbstractGenericWriter<D> implements ListWriter<D, K> {
private final WriterCustomizer<D> customizer;
public GenericListWriter(@Nonnull final InstanceIdentifier<D> type,
@Nonnull final ListWriterCustomizer<D, K> customizer) {
super(type);
this.customizer = customizer;
}
@Override
protected void writeCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D data,
@Nonnull final WriteContext ctx) throws WriteFailedException {
customizer.writeCurrentAttributes(id, data, ctx);
}
@Override
protected void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D dataBefore,
@Nonnull final WriteContext ctx) throws WriteFailedException {
customizer.deleteCurrentAttributes(id, dataBefore, ctx);
}
@Override
protected void updateCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D dataBefore,
@Nonnull final D dataAfter, @Nonnull final WriteContext ctx)
throws WriteFailedException {
customizer.updateCurrentAttributes(id, dataBefore, dataAfter, ctx);
}
@Override
protected void writeCurrent(final InstanceIdentifier<D> id, final D data, final WriteContext ctx)
throws WriteFailedException {
// Make sure the key is present
if (isWildcarded(id)) {
super.writeCurrent(getSpecificId(id, data), data, ctx);
} else {
super.writeCurrent(id, data, ctx);
}
}
@Override
protected void updateCurrent(final InstanceIdentifier<D> id, final D dataBefore, final D dataAfter,
final WriteContext ctx) throws WriteFailedException {
// Make sure the key is present
if (isWildcarded(id)) {
super.updateCurrent(getSpecificId(id, dataBefore), dataBefore, dataAfter, ctx);
} else {
super.updateCurrent(id, dataBefore, dataAfter, ctx);
}
}
@Override
protected void deleteCurrent(final InstanceIdentifier<D> id, final D dataBefore, final WriteContext ctx)
throws WriteFailedException {
// Make sure the key is present
if (isWildcarded(id)) {
super.deleteCurrent(getSpecificId(id, dataBefore), dataBefore, ctx);
} else {
super.deleteCurrent(id, dataBefore, ctx);
}
}
private boolean isWildcarded(final InstanceIdentifier<D> id) {
return id.firstIdentifierOf(getManagedDataObjectType().getTargetType()).isWildcarded();
}
private InstanceIdentifier<D> getSpecificId(final InstanceIdentifier<D> currentId, final D current) {
return RWUtils.replaceLastInId(currentId,
new InstanceIdentifier.IdentifiableItem<>(currentId.getTargetType(), current.getKey()));
}
}
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