TunnelIdEntryDeserializer.java example

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openflowplugin-master
/*
 * Copyright (c) 2016 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.openflowplugin.impl.protocol.deserialization.match;

import java.math.BigInteger;
import java.util.Objects;

import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.TunnelBuilder;

import io.netty.buffer.ByteBuf;

public class TunnelIdEntryDeserializer extends AbstractMatchEntryDeserializer {

    @Override
    public void deserializeEntry(ByteBuf message, MatchBuilder builder) {
        final boolean hasMask = processHeader(message);

        final byte[] tunnelId = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
        message.readBytes(tunnelId);
        final TunnelBuilder tunnelBuilder = new TunnelBuilder()
            .setTunnelId(new BigInteger(1, tunnelId));

        if (hasMask) {
            final byte[] tunnelMask = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
            message.readBytes(tunnelMask);
            tunnelBuilder.setTunnelMask(new BigInteger(1, tunnelMask));
        }

        if (Objects.isNull(builder.getTunnel())) {
            builder.setTunnel(tunnelBuilder.build());
        } else {
            throwErrorOnMalformed(builder, "tunnel");
        }
    }

}