/*
 * Copyright (c) 2014 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.messages;

import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
import org.opendaylight.controller.cluster.datastore.node.NormalizedNodeToNodeCodec;
import org.opendaylight.controller.cluster.datastore.node.NormalizedNodeToNodeCodec.Decoded;
import org.opendaylight.controller.cluster.datastore.node.NormalizedNodeToNodeCodec.Encoded;
import org.opendaylight.controller.protobuff.messages.transaction.ShardTransactionMessages;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;

/**
 * @deprecated Replaced by BatchedModifications.
 */
@Deprecated
public class MergeData extends ModifyData {
    private static final long serialVersionUID = 1L;

    public static final Class<MergeData> SERIALIZABLE_CLASS = MergeData.class;

    public MergeData() {
    }

    public MergeData(YangInstanceIdentifier path, NormalizedNode<?, ?> data, short version) {
        super(path, data, version);
    }

    @Override
    public Object toSerializable() {
        if(getVersion() >= DataStoreVersions.LITHIUM_VERSION) {
            return this;
        } else {
            // To base or R1 Helium version
            Encoded encoded = new NormalizedNodeToNodeCodec(null).encode(getPath(), getData());
            return ShardTransactionMessages.MergeData.newBuilder()
                    .setInstanceIdentifierPathArguments(encoded.getEncodedPath())
                    .setNormalizedNode(encoded.getEncodedNode().getNormalizedNode()).build();
        }
    }

    public static MergeData fromSerializable(Object serializable){
        if(serializable instanceof MergeData) {
            return (MergeData) serializable;
        } else {
            // From base or R1 Helium version
            ShardTransactionMessages.MergeData o = (ShardTransactionMessages.MergeData) serializable;
            Decoded decoded = new NormalizedNodeToNodeCodec(null).decode(
                    o.getInstanceIdentifierPathArguments(), o.getNormalizedNode());
            return new MergeData(decoded.getDecodedPath(), decoded.getDecodedNode(),
                    DataStoreVersions.HELIUM_2_VERSION);
        }
    }

    public static boolean isSerializedType(Object message) {
        return SERIALIZABLE_CLASS.isInstance(message) ||
               message instanceof ShardTransactionMessages.MergeData;
    }
}