2 * Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.openflowjava.protocol.impl.serialization.factories;
11 import io.netty.buffer.ByteBuf;
13 import java.util.List;
15 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
16 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
17 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
18 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
19 import org.opendaylight.openflowjava.util.ByteBufUtils;
20 import org.opendaylight.openflowjava.util.ExperimenterSerializerKeyFactory;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.ExperimenterIdMeterBand;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MeterFlags;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MeterBandCommons;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MeterModInput;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.MeterBand;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDropCase;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDscpRemarkCase;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandExperimenterCase;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.drop._case.MeterBandDrop;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.dscp.remark._case.MeterBandDscpRemark;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.experimenter._case.MeterBandExperimenter;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.mod.Bands;
35 * Translates MeterMod messages
36 * @author timotej.kubas
37 * @author michal.polkorab
39 public class MeterModInputMessageFactory implements OFSerializer<MeterModInput>,
40 SerializerRegistryInjector {
42 private static final byte MESSAGE_TYPE = 29;
43 private static final short LENGTH_OF_METER_BANDS = 16;
44 private static final short PADDING_IN_METER_BAND_DROP = 4;
45 private static final short PADDING_IN_METER_BAND_DSCP_REMARK = 3;
46 private SerializerRegistry registry;
49 public void serialize(final MeterModInput message, final ByteBuf outBuffer) {
50 ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
51 outBuffer.writeShort(message.getCommand().getIntValue());
52 outBuffer.writeShort(createMeterFlagsBitmask(message.getFlags()));
53 outBuffer.writeInt(message.getMeterId().getValue().intValue());
54 serializeBands(message.getBands(), outBuffer);
55 ByteBufUtils.updateOFHeaderLength(outBuffer);
58 private static int createMeterFlagsBitmask(final MeterFlags flags) {
59 return ByteBufUtils.fillBitMask(0,
63 flags.isOFPMFSTATS());
66 private void serializeBands(final List<Bands> bands, final ByteBuf outBuffer) {
68 for (Bands currentBand : bands) {
69 MeterBand meterBand = currentBand.getMeterBand();
70 if (meterBand instanceof MeterBandDropCase) {
71 MeterBandDropCase dropBandCase = (MeterBandDropCase) meterBand;
72 MeterBandDrop dropBand = dropBandCase.getMeterBandDrop();
73 writeBandCommonFields(dropBand, outBuffer);
74 outBuffer.writeZero(PADDING_IN_METER_BAND_DROP);
75 } else if (meterBand instanceof MeterBandDscpRemarkCase) {
76 MeterBandDscpRemarkCase dscpRemarkBandCase = (MeterBandDscpRemarkCase) meterBand;
77 MeterBandDscpRemark dscpRemarkBand = dscpRemarkBandCase.getMeterBandDscpRemark();
78 writeBandCommonFields(dscpRemarkBand, outBuffer);
79 outBuffer.writeByte(dscpRemarkBand.getPrecLevel());
80 outBuffer.writeZero(PADDING_IN_METER_BAND_DSCP_REMARK);
81 } else if (meterBand instanceof MeterBandExperimenterCase) {
82 MeterBandExperimenterCase experimenterBandCase = (MeterBandExperimenterCase) meterBand;
83 MeterBandExperimenter experimenterBand = experimenterBandCase.getMeterBandExperimenter();
84 long expId = experimenterBand.getAugmentation(ExperimenterIdMeterBand.class)
85 .getExperimenter().getValue();
86 OFSerializer<MeterBandExperimenterCase> serializer = registry.getSerializer(
87 ExperimenterSerializerKeyFactory.createMeterBandSerializerKey(
88 EncodeConstants.OF13_VERSION_ID, expId));
89 serializer.serialize(experimenterBandCase, outBuffer);
95 private static void writeBandCommonFields(final MeterBandCommons meterBand, final ByteBuf outBuffer) {
96 outBuffer.writeShort(meterBand.getType().getIntValue());
97 outBuffer.writeShort(LENGTH_OF_METER_BANDS);
98 outBuffer.writeInt(meterBand.getRate().intValue());
99 outBuffer.writeInt(meterBand.getBurstSize().intValue());
103 public void injectSerializerRegistry(final SerializerRegistry serializerRegistry) {
104 registry = serializerRegistry;