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.HashMap;
14 import java.util.List;
17 import org.opendaylight.openflowjava.protocol.api.extensibility.MessageTypeKey;
18 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
19 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
20 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
21 import org.opendaylight.openflowjava.protocol.impl.util.ByteBufUtils;
22 import org.opendaylight.openflowjava.protocol.impl.util.EncodeConstants;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MeterFlags;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MeterBandCommons;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MeterModInput;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.MeterBand;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDropCase;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDscpRemarkCase;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandExperimenterCase;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.drop._case.MeterBandDrop;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.dscp.remark._case.MeterBandDscpRemark;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.experimenter._case.MeterBandExperimenter;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.mod.Bands;
36 * Translates MeterMod messages
37 * @author timotej.kubas
38 * @author michal.polkorab
40 public class MeterModInputMessageFactory implements OFSerializer<MeterModInput>,
41 SerializerRegistryInjector {
43 private static final byte MESSAGE_TYPE = 29;
44 private static final short LENGTH_OF_METER_BANDS = 16;
45 private static final short PADDING_IN_METER_BAND_DROP = 4;
46 private static final short PADDING_IN_METER_BAND_DSCP_REMARK = 3;
47 private SerializerRegistry registry;
50 public void serialize(MeterModInput message, ByteBuf outBuffer) {
51 ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
52 outBuffer.writeShort(message.getCommand().getIntValue());
53 outBuffer.writeShort(createMeterFlagsBitmask(message.getFlags()));
54 outBuffer.writeInt(message.getMeterId().getValue().intValue());
55 serializeBands(message.getBands(), outBuffer);
56 ByteBufUtils.updateOFHeaderLength(outBuffer);
59 private static int createMeterFlagsBitmask(MeterFlags flags) {
60 int meterFlagBitmask = 0;
61 Map<Integer, Boolean> meterModFlagsMap = new HashMap<>();
62 meterModFlagsMap.put(0, flags.isOFPMFKBPS());
63 meterModFlagsMap.put(1, flags.isOFPMFPKTPS());
64 meterModFlagsMap.put(2, flags.isOFPMFBURST());
65 meterModFlagsMap.put(3, flags.isOFPMFSTATS());
67 meterFlagBitmask = ByteBufUtils.fillBitMaskFromMap(meterModFlagsMap);
68 return meterFlagBitmask;
71 private void serializeBands(List<Bands> bands, ByteBuf outBuffer) {
73 for (Bands currentBand : bands) {
74 MeterBand meterBand = currentBand.getMeterBand();
75 if (meterBand instanceof MeterBandDropCase) {
76 MeterBandDropCase dropBandCase = (MeterBandDropCase) meterBand;
77 MeterBandDrop dropBand = dropBandCase.getMeterBandDrop();
78 writeBandCommonFields(dropBand, outBuffer);
79 ByteBufUtils.padBuffer(PADDING_IN_METER_BAND_DROP, outBuffer);
80 } else if (meterBand instanceof MeterBandDscpRemarkCase) {
81 MeterBandDscpRemarkCase dscpRemarkBandCase = (MeterBandDscpRemarkCase) meterBand;
82 MeterBandDscpRemark dscpRemarkBand = dscpRemarkBandCase.getMeterBandDscpRemark();
83 writeBandCommonFields(dscpRemarkBand, outBuffer);
84 outBuffer.writeByte(dscpRemarkBand.getPrecLevel());
85 ByteBufUtils.padBuffer(PADDING_IN_METER_BAND_DSCP_REMARK, outBuffer);
86 } else if (meterBand instanceof MeterBandExperimenterCase) {
87 OFSerializer<MeterBandExperimenter> serializer = registry.getSerializer(
88 new MessageTypeKey<>(EncodeConstants.OF13_VERSION_ID, MeterBandExperimenter.class));
89 MeterBandExperimenterCase experimenterBandCase = (MeterBandExperimenterCase) meterBand;
90 MeterBandExperimenter experimenterBand = experimenterBandCase.getMeterBandExperimenter();
91 serializer.serialize(experimenterBand, outBuffer);
97 private static void writeBandCommonFields(MeterBandCommons meterBand, ByteBuf outBuffer) {
98 outBuffer.writeShort(meterBand.getType().getIntValue());
99 outBuffer.writeShort(LENGTH_OF_METER_BANDS);
100 outBuffer.writeInt(meterBand.getRate().intValue());
101 outBuffer.writeInt(meterBand.getBurstSize().intValue());
105 public void injectSerializerRegistry(SerializerRegistry serializerRegistry) {
106 registry = serializerRegistry;