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.impl.serialization.OFSerializer;
18 import org.opendaylight.openflowjava.protocol.impl.util.ByteBufUtils;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MeterFlags;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MeterBandCommons;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MeterModInput;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.MeterBand;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDropCase;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDscpRemarkCase;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandExperimenterCase;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.drop._case.MeterBandDrop;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.dscp.remark._case.MeterBandDscpRemark;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.experimenter._case.MeterBandExperimenter;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.mod.Bands;
32 * Translates MeterMod messages
33 * @author timotej.kubas
34 * @author michal.polkorab
36 public class MeterModInputMessageFactory implements OFSerializer<MeterModInput> {
37 private static final byte MESSAGE_TYPE = 29;
38 private static final int MESSAGE_LENGTH = 16;
39 private static final short LENGTH_OF_METER_BANDS = 16;
40 private static final short PADDING_IN_METER_BAND_DROP = 4;
41 private static final short PADDING_IN_METER_BAND_DSCP_REMARK = 3;
42 private static MeterModInputMessageFactory instance;
44 private MeterModInputMessageFactory() {
49 * @return singleton factory
51 public static synchronized MeterModInputMessageFactory getInstance() {
52 if (instance == null) {
53 instance = new MeterModInputMessageFactory();
59 public void messageToBuffer(short version, ByteBuf out,
60 MeterModInput message) {
61 ByteBufUtils.writeOFHeader(instance, message, out);
62 out.writeShort(message.getCommand().getIntValue());
63 out.writeShort(createMeterFlagsBitmask(message.getFlags()));
64 out.writeInt(message.getMeterId().getValue().intValue());
65 encodeBands(message.getBands(), out);
69 public int computeLength(MeterModInput message) {
70 int length = MESSAGE_LENGTH;
71 if (message.getBands() != null) {
72 length += message.getBands().size() * LENGTH_OF_METER_BANDS;
78 public byte getMessageType() {
82 private static int createMeterFlagsBitmask(MeterFlags flags) {
83 int meterFlagBitmask = 0;
84 Map<Integer, Boolean> meterModFlagsMap = new HashMap<>();
85 meterModFlagsMap.put(0, flags.isOFPMFKBPS());
86 meterModFlagsMap.put(1, flags.isOFPMFPKTPS());
87 meterModFlagsMap.put(2, flags.isOFPMFBURST());
88 meterModFlagsMap.put(3, flags.isOFPMFSTATS());
90 meterFlagBitmask = ByteBufUtils.fillBitMaskFromMap(meterModFlagsMap);
91 return meterFlagBitmask;
94 private static void encodeBands(List<Bands> bands, ByteBuf outBuffer) {
96 for (Bands currentBand : bands) {
97 MeterBand meterBand = currentBand.getMeterBand();
98 if (meterBand instanceof MeterBandDropCase) {
99 MeterBandDropCase dropBandCase = (MeterBandDropCase) meterBand;
100 MeterBandDrop dropBand = dropBandCase.getMeterBandDrop();
101 writeBandCommonFields(dropBand, outBuffer);
102 ByteBufUtils.padBuffer(PADDING_IN_METER_BAND_DROP, outBuffer);
103 } else if (meterBand instanceof MeterBandDscpRemarkCase) {
104 MeterBandDscpRemarkCase dscpRemarkBandCase = (MeterBandDscpRemarkCase) meterBand;
105 MeterBandDscpRemark dscpRemarkBand = dscpRemarkBandCase.getMeterBandDscpRemark();
106 writeBandCommonFields(dscpRemarkBand, outBuffer);
107 outBuffer.writeByte(dscpRemarkBand.getPrecLevel());
108 ByteBufUtils.padBuffer(PADDING_IN_METER_BAND_DSCP_REMARK, outBuffer);
109 } else if (meterBand instanceof MeterBandExperimenterCase) {
110 MeterBandExperimenterCase experimenterBandCase = (MeterBandExperimenterCase) meterBand;
111 MeterBandExperimenter experimenterBand = experimenterBandCase.getMeterBandExperimenter();
112 writeBandCommonFields(experimenterBand, outBuffer);
113 outBuffer.writeInt(experimenterBand.getExperimenter().intValue());
119 private static void writeBandCommonFields(MeterBandCommons meterBand, ByteBuf outBuffer) {
120 outBuffer.writeShort(meterBand.getType().getIntValue());
121 outBuffer.writeShort(LENGTH_OF_METER_BANDS);
122 outBuffer.writeInt(meterBand.getRate().intValue());
123 outBuffer.writeInt(meterBand.getBurstSize().intValue());