/*
* Copyright (c) 2015 Huawei, 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.messages;
import com.google.common.util.concurrent.CheckedFuture;
import com.google.common.util.concurrent.SettableFuture;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.opendaylight.controller.cluster.datastore.node.utils.stream.SerializationUtils;
import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
/**
* Abstract base class for ReadData and DataExists messages.
*
* @author gwu
*
*/
public abstract class AbstractRead<T> extends VersionedExternalizableMessage {
private static final long serialVersionUID = 1L;
private YangInstanceIdentifier path;
protected AbstractRead() {
}
public AbstractRead(final YangInstanceIdentifier path, final short version) {
super(version);
this.path = path;
}
public YangInstanceIdentifier getPath() {
return path;
}
@Override
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
super.readExternal(in);
path = SerializationUtils.deserializePath(in);
}
@Override
public void writeExternal(ObjectOutput out) throws IOException {
super.writeExternal(out);
SerializationUtils.serializePath(path, out);
}
public AbstractRead<T> asVersion(short version) {
return version == getVersion() ? this : newInstance(version);
}
public abstract CheckedFuture<T, ReadFailedException> apply(DOMStoreReadTransaction readDelegate);
public abstract void processResponse(Object reponse, SettableFuture<T> promise);
protected abstract AbstractRead<T> newInstance(short withVersion);
}