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/*
 * Copyright (c) 2014, 2015 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.openflowjava.nx.codec.action;

import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint16;
import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint32;
import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint64;

import io.netty.buffer.ByteBuf;
import org.opendaylight.openflowjava.nx.api.NiciraActionDeserializerKey;
import org.opendaylight.openflowjava.nx.api.NiciraActionSerializerKey;
import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.Action;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.aug.nx.action.ActionRegLoad;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.aug.nx.action.ActionRegLoadBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.reg.load.grouping.NxActionRegLoadBuilder;

public class RegLoadCodec extends AbstractActionCodec {

    public static final int LENGTH = 24;
    public static final byte SUBTYPE = 7; // NXAST_REG_LOAD
    public static final NiciraActionSerializerKey SERIALIZER_KEY = new NiciraActionSerializerKey(
            EncodeConstants.OF_VERSION_1_3, ActionRegLoad.class);
    public static final NiciraActionDeserializerKey DESERIALIZER_KEY = new NiciraActionDeserializerKey(
            EncodeConstants.OF_VERSION_1_3, SUBTYPE);

    @Override
    public void serialize(final Action input, final ByteBuf outBuffer) {
        ActionRegLoad actionRegLoad = (ActionRegLoad) input.getActionChoice();
        serializeHeader(LENGTH, SUBTYPE, outBuffer);
        outBuffer.writeShort(actionRegLoad.getNxActionRegLoad().getOfsNbits().toJava());
        outBuffer.writeInt(actionRegLoad.getNxActionRegLoad().getDst().intValue());
        outBuffer.writeLong(actionRegLoad.getNxActionRegLoad().getValue().longValue());
    }

    @Override
    public Action deserialize(final ByteBuf message) {
        return deserializeHeader(message)
            .setActionChoice(new ActionRegLoadBuilder()
                .setNxActionRegLoad(new NxActionRegLoadBuilder()
                    .setOfsNbits(readUint16(message))
                    .setDst(readUint32(message))
                    .setValue(readUint64(message))
                    .build())
                .build())
            .build();
    }
}