org.opendaylight.protocol.rsvp.parser.impl.te.SenderTspecObjectParser.java Source code

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Here is the source code for org.opendaylight.protocol.rsvp.parser.impl.te.SenderTspecObjectParser.java

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/*
 * Copyright (c) 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.protocol.rsvp.parser.impl.te;

import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeFloat32;
import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedInt;

import com.google.common.base.Preconditions;
import io.netty.buffer.ByteBuf;
import org.opendaylight.protocol.rsvp.parser.spi.RSVPParsingException;
import org.opendaylight.protocol.rsvp.parser.spi.subobjects.AbstractRSVPObjectParser;
import org.opendaylight.protocol.util.ByteArray;
import org.opendaylight.protocol.util.ByteBufWriteUtil;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ieee754.rev130819.Float32;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.RsvpTeObject;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.tspec.object.TspecObject;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.tspec.object.TspecObjectBuilder;

public class SenderTspecObjectParser extends AbstractRSVPObjectParser {
    public static final short CLASS_NUM = 12;
    public static final short CTYPE = 2;
    private static final int BODY_SIZE = 32;
    private static final int SERVICE_LENGHT = 6;

    @Override
    protected RsvpTeObject localParseObject(final ByteBuf byteBuf) throws RSVPParsingException {
        final TspecObjectBuilder builder = new TspecObjectBuilder();
        //skip version number, reserved, Overall length
        byteBuf.skipBytes(ByteBufWriteUtil.INT_BYTES_LENGTH);
        //skip Service header, reserved, Length of service
        byteBuf.skipBytes(ByteBufWriteUtil.INT_BYTES_LENGTH);
        //skip Parameter ID, Parameter 127 flags, Parameter 127 length
        byteBuf.skipBytes(ByteBufWriteUtil.INT_BYTES_LENGTH);

        builder.setTokenBucketRate(new Float32(ByteArray.readBytes(byteBuf, METRIC_VALUE_F_LENGTH)));
        builder.setTokenBucketSize(new Float32(ByteArray.readBytes(byteBuf, METRIC_VALUE_F_LENGTH)));
        builder.setPeakDataRate(new Float32(ByteArray.readBytes(byteBuf, METRIC_VALUE_F_LENGTH)));
        builder.setMinimumPolicedUnit(byteBuf.readUnsignedInt());
        builder.setMaximumPacketSize(byteBuf.readUnsignedInt());
        return builder.build();
    }

    @Override
    public void localSerializeObject(final RsvpTeObject teLspObject, final ByteBuf output) {
        Preconditions.checkArgument(teLspObject instanceof TspecObject, "SenderTspecObject is mandatory.");
        final TspecObject tspecObj = (TspecObject) teLspObject;
        serializeAttributeHeader(BODY_SIZE, CLASS_NUM, CTYPE, output);
        output.writeZero(ByteBufWriteUtil.SHORT_BYTES_LENGTH);
        output.writeShort(OVERALL_LENGTH);
        output.writeByte(ByteBufWriteUtil.ONE_BYTE_LENGTH);
        output.writeZero(ByteBufWriteUtil.ONE_BYTE_LENGTH);
        output.writeShort(SERVICE_LENGHT);
        output.writeByte(TOKEN_BUCKET_TSPEC);
        output.writeZero(ByteBufWriteUtil.ONE_BYTE_LENGTH);
        output.writeShort(PARAMETER_127_LENGTH);
        writeFloat32(tspecObj.getTokenBucketRate(), output);
        writeFloat32(tspecObj.getTokenBucketSize(), output);
        writeFloat32(tspecObj.getPeakDataRate(), output);
        writeUnsignedInt(tspecObj.getMinimumPolicedUnit(), output);
        writeUnsignedInt(tspecObj.getMaximumPacketSize(), output);
    }
}