/*
* Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.controller.cluster.datastore.persisted;
import com.google.common.base.Throwables;
import com.google.common.io.ByteArrayDataOutput;
import com.google.common.io.ByteStreams;
import java.io.DataInput;
import java.io.IOException;
import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Payload persisted when a transaction is purged from the frontend. It contains the transaction identifier.
*
* @author Robert Varga
*/
public final class PurgeTransactionPayload extends AbstractIdentifiablePayload<TransactionIdentifier> {
private static final class Proxy extends AbstractProxy<TransactionIdentifier> {
private static final long serialVersionUID = 1L;
// checkstyle flags the public modifier as redundant which really doesn't make sense since it clearly isn't
// redundant. It is explicitly needed for Java serialization to be able to create instances via reflection.
@SuppressWarnings("checkstyle:RedundantModifier")
public Proxy() {
// For Externalizable
}
Proxy(final byte[] serialized) {
super(serialized);
}
@Override
protected TransactionIdentifier readIdentifier(final DataInput in) throws IOException {
return TransactionIdentifier.readFrom(in);
}
@Override
protected PurgeTransactionPayload createObject(final TransactionIdentifier identifier,
final byte[] serialized) {
return new PurgeTransactionPayload(identifier, serialized);
}
}
private static final Logger LOG = LoggerFactory.getLogger(PurgeTransactionPayload.class);
private static final long serialVersionUID = 1L;
PurgeTransactionPayload(final TransactionIdentifier transactionId, final byte[] serialized) {
super(transactionId, serialized);
}
public static PurgeTransactionPayload create(final TransactionIdentifier transactionId) {
final ByteArrayDataOutput out = ByteStreams.newDataOutput();
try {
transactionId.writeTo(out);
} catch (IOException e) {
// This should never happen
LOG.error("Failed to serialize {}", transactionId, e);
throw Throwables.propagate(e);
}
return new PurgeTransactionPayload(transactionId, out.toByteArray());
}
@Override
protected Proxy externalizableProxy(final byte[] serialized) {
return new Proxy(serialized);
}
}