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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 static org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType.CONFIGURATION;
import com.google.common.base.Optional;
import io.fd.honeycomb.translate.read.InitFailedException;
import io.fd.honeycomb.translate.read.Initializer;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.spi.read.Initialized;
import io.fd.honeycomb.translate.spi.read.InitializingReaderCustomizer;
import javax.annotation.Nonnull;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public final class GenericInitReader<O extends DataObject, B extends Builder<O>>
extends GenericReader<O, B>
implements Initializer<O> {
private static final Logger LOG = LoggerFactory.getLogger(GenericInitReader.class);
public GenericInitReader(@Nonnull final InstanceIdentifier<O> id,
@Nonnull final InitializingReaderCustomizer<O, B> customizer) {
super(id, customizer);
}
@Override
public void init(final DataBroker broker, final InstanceIdentifier<O> id, final ReadContext ctx) throws
InitFailedException {
LOG.debug("{}: Initializing current: {}", this, id);
try {
final Optional<O> operational = readCurrent(id, ctx);
if (operational.isPresent()) {
final Initialized<? extends DataObject> init =
((InitializingReaderCustomizer<O, B>) customizer).init(id, operational.get(), ctx);
LOG.debug("{}: Writing init config : {} at: {}", GenericInitReader.this, init.getData(), init.getId());
writeInit(broker, init);
}
} catch (ReadFailedException e) {
LOG.warn("{}: Failed to initialize current, unable to read: {}", this, id, e);
throw new InitFailedException(e.getFailedId(), e);
}
}
@SuppressWarnings("unchecked")
static void writeInit(final DataBroker broker, final Initialized<? extends DataObject> init) {
final WriteTransaction writeTx = broker.newWriteOnlyTransaction();
writeTx.merge(CONFIGURATION, (InstanceIdentifier) init.getId(), init.getData(), true);
writeTx.submit();
}
}
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