RoleReplyMessageFactory.java example

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openflowjava-master
/*
 * Copyright (c) 2013 Pantheon Technologies s.r.o. 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.protocol.impl.deserialization.factories;

import io.netty.buffer.ByteBuf;

import java.math.BigInteger;

import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.ControllerRole;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.RoleRequestOutput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.RoleRequestOutputBuilder;

/**
 * Translates RoleReply messages
 * @author timotej.kubas
 * @author michal.polkorab
 */
public class RoleReplyMessageFactory implements OFDeserializer<RoleRequestOutput>{

    private static final byte PADDING_IN_ROLE_REPLY_HEADER = 4;

    @Override
    public RoleRequestOutput deserialize(ByteBuf rawMessage) {
        RoleRequestOutputBuilder builder = new RoleRequestOutputBuilder();
        builder.setVersion((short) EncodeConstants.OF13_VERSION_ID);
        builder.setXid(rawMessage.readUnsignedInt());
        builder.setRole(ControllerRole.forValue((int) rawMessage.readUnsignedInt()));
        rawMessage.skipBytes(PADDING_IN_ROLE_REPLY_HEADER);
        byte[] generationID = new byte[8];
        rawMessage.readBytes(generationID);
        builder.setGenerationId(new BigInteger(1, generationID));
        return builder.build();
    }
}