openflowjava/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/serialization/factories/MultipartReplyMessageFactory.java

   1 /*
   2  * Copyright (c) 2015 NetIDE Consortium and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.openflowjava.protocol.impl.serialization.factories;
   9
  10 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  11 import io.netty.buffer.ByteBuf;
  12 import io.netty.buffer.UnpooledByteBufAllocator;
  13 import java.nio.charset.StandardCharsets;
  14 import java.util.HashMap;
  15 import java.util.List;
  16 import java.util.Map;
  17 import java.util.Objects;
  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.api.keys.MessageTypeKey;
  22 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  23 import org.opendaylight.openflowjava.protocol.impl.util.ListSerializer;
  24 import org.opendaylight.openflowjava.protocol.impl.util.TypeKeyMaker;
  25 import org.opendaylight.openflowjava.protocol.impl.util.TypeKeyMakerFactory;
  26 import org.opendaylight.openflowjava.util.ByteBufUtils;
  27 import org.opendaylight.openflowjava.util.ExperimenterSerializerKeyFactory;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.IetfYangUtil;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.ActionRelatedTableFeatureProperty;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.ExperimenterIdTableFeatureProperty;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.InstructionRelatedTableFeatureProperty;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.NextTableRelatedTableFeatureProperty;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.OxmRelatedTableFeatureProperty;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.table.features.properties.container.table.feature.properties.NextTableIds;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.Action;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.Instruction;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.ActionType;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupCapabilities;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.GroupTypes;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MeterBandTypeBitmap;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MeterFlags;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.MultipartRequestFlags;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortConfig;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortFeatures;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortState;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableConfig;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntry;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.grouping.Match;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MeterBandCommons;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.MultipartReplyMessage;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.buckets.grouping.BucketsList;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.MeterBand;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDropCase;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandDscpRemarkCase;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.MeterBandExperimenterCase;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.drop._case.MeterBandDrop;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.dscp.remark._case.MeterBandDscpRemark;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.meter.band.header.meter.band.meter.band.experimenter._case.MeterBandExperimenter;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.MultipartReplyBody;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyAggregateCase;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyDescCase;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyFlowCase;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyGroupCase;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyGroupDescCase;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyGroupFeaturesCase;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyMeterCase;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyMeterConfigCase;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyMeterFeaturesCase;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyPortDescCase;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyPortStatsCase;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyQueueCase;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyTableCase;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.MultipartReplyTableFeaturesCase;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.aggregate._case.MultipartReplyAggregate;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.desc._case.MultipartReplyDesc;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.flow._case.MultipartReplyFlow;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.flow._case.multipart.reply.flow.FlowStats;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.group._case.MultipartReplyGroup;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.group._case.multipart.reply.group.GroupStats;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.group._case.multipart.reply.group.group.stats.BucketStats;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.group.desc._case.MultipartReplyGroupDesc;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.group.desc._case.multipart.reply.group.desc.GroupDesc;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.group.features._case.MultipartReplyGroupFeatures;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter._case.MultipartReplyMeter;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter._case.multipart.reply.meter.MeterStats;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter._case.multipart.reply.meter.meter.stats.MeterBandStats;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter.config._case.MultipartReplyMeterConfig;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter.config._case.multipart.reply.meter.config.MeterConfig;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter.config._case.multipart.reply.meter.config.meter.config.Bands;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.meter.features._case.MultipartReplyMeterFeatures;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.port.desc._case.MultipartReplyPortDesc;
  92 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.port.desc._case.multipart.reply.port.desc.Ports;
  93 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.port.stats._case.MultipartReplyPortStats;
  94 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.port.stats._case.multipart.reply.port.stats.PortStats;
  95 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.queue._case.MultipartReplyQueue;
  96 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.queue._case.multipart.reply.queue.QueueStats;
  97 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.table._case.MultipartReplyTable;
  98 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.table._case.multipart.reply.table.TableStats;
  99 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.table.features._case.MultipartReplyTableFeatures;
 100 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.table.features._case.multipart.reply.table.features.TableFeatures;
 101 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.table.features.properties.grouping.TableFeatureProperties;
 102
 103 /**
 104  * Translates MultipartReply messages.
 105  *
 106  * @author giuseppex.petralia@intel.com
 107  */
 108 @SuppressFBWarnings("UWF_FIELD_NOT_INITIALIZED_IN_CONSTRUCTOR") // FB doesn't recognize Objects.requireNonNull
 109 public class MultipartReplyMessageFactory implements OFSerializer<MultipartReplyMessage>, SerializerRegistryInjector {
 110
 111     private static final byte MESSAGE_TYPE = 19;
 112     private static final byte PADDING = 4;
 113     private static final byte PORT_DESC_PADDING_1 = 4;
 114     private static final byte PORT_DESC_PADDING_2 = 2;
 115     private static final int FLOW_STATS_LENGTH_INDEX = 0;
 116     private static final byte FLOW_STATS_PADDING_1 = 1;
 117     private static final byte FLOW_STATS_PADDING_2 = 6;
 118     private static final byte AGGREGATE_PADDING = 4;
 119     private static final byte TABLE_PADDING = 3;
 120     private static final byte PORT_STATS_PADDING = 4;
 121     private static final byte GROUP_STATS_PADDING_1 = 2;
 122     private static final byte GROUP_STATS_PADDING_2 = 4;
 123     private static final int GROUP_STATS_LENGTH_INDEX = 0;
 124     private static final int GROUP_DESC_LENGTH_INDEX = 0;
 125     private static final int BUCKET_LENGTH_INDEX = 0;
 126     private static final byte GROUP_DESC_PADDING = 1;
 127     private static final byte BUCKET_PADDING = 4;
 128     private static final int METER_LENGTH_INDEX = 4;
 129     private static final byte METER_PADDING = 6;
 130     private static final int METER_CONFIG_LENGTH_INDEX = 0;
 131     private static final short LENGTH_OF_METER_BANDS = 16;
 132     private static final byte METER_FEATURES_PADDING = 2;
 133     private static final int TABLE_FEATURES_LENGTH_INDEX = 0;
 134     private static final byte TABLE_FEATURES_PADDING = 5;
 135     private static final byte INSTRUCTIONS_CODE = 0;
 136     private static final byte INSTRUCTIONS_MISS_CODE = 1;
 137     private static final byte NEXT_TABLE_CODE = 2;
 138     private static final byte NEXT_TABLE_MISS_CODE = 3;
 139     private static final byte WRITE_ACTIONS_CODE = 4;
 140     private static final byte WRITE_ACTIONS_MISS_CODE = 5;
 141     private static final byte APPLY_ACTIONS_CODE = 6;
 142     private static final byte APPLY_ACTIONS_MISS_CODE = 7;
 143     private static final byte MATCH_CODE = 8;
 144     private static final byte WILDCARDS_CODE = 10;
 145     private static final byte WRITE_SETFIELD_CODE = 12;
 146     private static final byte WRITE_SETFIELD_MISS_CODE = 13;
 147     private static final byte APPLY_SETFIELD_CODE = 14;
 148     private static final byte APPLY_SETFIELD_MISS_CODE = 15;
 149
 150     private SerializerRegistry registry;
 151
 152     @Override
 153     public void injectSerializerRegistry(final SerializerRegistry serializerRegistry) {
 154         this.registry = serializerRegistry;
 155     }
 156
 157     @Override
 158     public void serialize(final MultipartReplyMessage message, final ByteBuf outBuffer) {
 159         Objects.requireNonNull(registry);
 160
 161         ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
 162         outBuffer.writeShort(message.getType().getIntValue());
 163         writeFlags(message.getFlags(), outBuffer);
 164         outBuffer.writeZero(PADDING);
 165         switch (message.getType()) {
 166             case OFPMPDESC:
 167                 serializeDescBody(message.getMultipartReplyBody(), outBuffer);
 168                 break;
 169             case OFPMPFLOW:
 170                 serializeFlowBody(message.getMultipartReplyBody(), outBuffer, message);
 171                 break;
 172             case OFPMPAGGREGATE:
 173                 serializeAggregateBody(message.getMultipartReplyBody(), outBuffer);
 174                 break;
 175             case OFPMPTABLE:
 176                 serializeTableBody(message.getMultipartReplyBody(), outBuffer);
 177                 break;
 178             case OFPMPPORTSTATS:
 179                 serializePortStatsBody(message.getMultipartReplyBody(), outBuffer);
 180                 break;
 181             case OFPMPQUEUE:
 182                 serializeQueueBody(message.getMultipartReplyBody(), outBuffer);
 183                 break;
 184             case OFPMPGROUP:
 185                 serializeGroupBody(message.getMultipartReplyBody(), outBuffer);
 186                 break;
 187             case OFPMPGROUPDESC:
 188                 serializeGroupDescBody(message.getMultipartReplyBody(), outBuffer, message);
 189                 break;
 190             case OFPMPGROUPFEATURES:
 191                 serializeGroupFeaturesBody(message.getMultipartReplyBody(), outBuffer);
 192                 break;
 193             case OFPMPMETER:
 194                 serializeMeterBody(message.getMultipartReplyBody(), outBuffer);
 195                 break;
 196             case OFPMPMETERCONFIG:
 197                 serializeMeterConfigBody(message.getMultipartReplyBody(), outBuffer);
 198                 break;
 199             case OFPMPMETERFEATURES:
 200                 serializeMeterFeaturesBody(message.getMultipartReplyBody(), outBuffer);
 201                 break;
 202             case OFPMPTABLEFEATURES:
 203                 serializeTableFeaturesBody(message.getMultipartReplyBody(), outBuffer);
 204                 break;
 205             case OFPMPPORTDESC:
 206                 serializePortDescBody(message.getMultipartReplyBody(), outBuffer);
 207                 break;
 208             case OFPMPEXPERIMENTER:
 209                 serializeExperimenterBody(message.getMultipartReplyBody(), outBuffer);
 210                 break;
 211             default:
 212                 break;
 213         }
 214         ByteBufUtils.updateOFHeaderLength(outBuffer);
 215     }
 216
 217     private void serializeExperimenterBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 218 //        MultipartReplyExperimenterCase experimenterCase = (MultipartReplyExperimenterCase) body;
 219 //        MultipartReplyExperimenter experimenterBody = experimenterCase.getMultipartReplyExperimenter();
 220         // TODO: experimenterBody does not have get methods
 221     }
 222
 223     private void writeFlags(final MultipartRequestFlags flags, final ByteBuf outBuffer) {
 224         Map<Integer, Boolean> map = new HashMap<>();
 225         map.put(0, flags.isOFPMPFREQMORE());
 226         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 227         outBuffer.writeShort(bitmap);
 228     }
 229
 230     private void serializeTableFeaturesBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 231         MultipartReplyTableFeaturesCase tableFeaturesCase = (MultipartReplyTableFeaturesCase) body;
 232         MultipartReplyTableFeatures tableFeatures = tableFeaturesCase.getMultipartReplyTableFeatures();
 233         for (TableFeatures tableFeature : tableFeatures.getTableFeatures()) {
 234             ByteBuf tableFeatureBuff = UnpooledByteBufAllocator.DEFAULT.buffer();
 235             tableFeatureBuff.writeShort(EncodeConstants.EMPTY_LENGTH);
 236             tableFeatureBuff.writeByte(tableFeature.getTableId());
 237             tableFeatureBuff.writeZero(TABLE_FEATURES_PADDING);
 238             write32String(tableFeature.getName(), tableFeatureBuff);
 239             tableFeatureBuff.writeBytes(tableFeature.getMetadataMatch());
 240             tableFeatureBuff.writeZero(64 - tableFeature.getMetadataMatch().length);
 241             tableFeatureBuff.writeBytes(tableFeature.getMetadataWrite());
 242             tableFeatureBuff.writeZero(64 - tableFeature.getMetadataWrite().length);
 243             writeTableConfig(tableFeature.getConfig(), tableFeatureBuff);
 244             tableFeatureBuff.writeInt(tableFeature.getMaxEntries().intValue());
 245             for (TableFeatureProperties tableFeatureProp : tableFeature.getTableFeatureProperties()) {
 246                 switch (tableFeatureProp.getType()) {
 247                     case OFPTFPTINSTRUCTIONS:
 248                         writeInstructionRelatedTableProperty(tableFeatureBuff, tableFeatureProp, INSTRUCTIONS_CODE);
 249                         break;
 250                     case OFPTFPTINSTRUCTIONSMISS:
 251                         writeInstructionRelatedTableProperty(tableFeatureBuff, tableFeatureProp,
 252                                 INSTRUCTIONS_MISS_CODE);
 253                         break;
 254                     case OFPTFPTNEXTTABLES:
 255                         writeNextTableRelatedTableProperty(tableFeatureBuff, tableFeatureProp, NEXT_TABLE_CODE);
 256                         break;
 257                     case OFPTFPTNEXTTABLESMISS:
 258                         writeNextTableRelatedTableProperty(tableFeatureBuff, tableFeatureProp, NEXT_TABLE_MISS_CODE);
 259                         break;
 260                     case OFPTFPTWRITEACTIONS:
 261                         writeActionsRelatedTableProperty(tableFeatureBuff, tableFeatureProp, WRITE_ACTIONS_CODE);
 262                         break;
 263                     case OFPTFPTWRITEACTIONSMISS:
 264                         writeActionsRelatedTableProperty(tableFeatureBuff, tableFeatureProp, WRITE_ACTIONS_MISS_CODE);
 265                         break;
 266                     case OFPTFPTAPPLYACTIONS:
 267                         writeActionsRelatedTableProperty(tableFeatureBuff, tableFeatureProp, APPLY_ACTIONS_CODE);
 268                         break;
 269                     case OFPTFPTAPPLYACTIONSMISS:
 270                         writeActionsRelatedTableProperty(tableFeatureBuff, tableFeatureProp, APPLY_ACTIONS_MISS_CODE);
 271                         break;
 272                     case OFPTFPTMATCH:
 273                         writeOxmRelatedTableProperty(tableFeatureBuff, tableFeatureProp, MATCH_CODE);
 274                         break;
 275                     case OFPTFPTWILDCARDS:
 276                         writeOxmRelatedTableProperty(tableFeatureBuff, tableFeatureProp, WILDCARDS_CODE);
 277                         break;
 278                     case OFPTFPTWRITESETFIELD:
 279                         writeOxmRelatedTableProperty(tableFeatureBuff, tableFeatureProp, WRITE_SETFIELD_CODE);
 280                         break;
 281                     case OFPTFPTWRITESETFIELDMISS:
 282                         writeOxmRelatedTableProperty(tableFeatureBuff, tableFeatureProp, WRITE_SETFIELD_MISS_CODE);
 283                         break;
 284                     case OFPTFPTAPPLYSETFIELD:
 285                         writeOxmRelatedTableProperty(tableFeatureBuff, tableFeatureProp, APPLY_SETFIELD_CODE);
 286                         break;
 287                     case OFPTFPTAPPLYSETFIELDMISS:
 288                         writeOxmRelatedTableProperty(tableFeatureBuff, tableFeatureProp, APPLY_SETFIELD_MISS_CODE);
 289                         break;
 290                     case OFPTFPTEXPERIMENTER:
 291                     case OFPTFPTEXPERIMENTERMISS:
 292                         writeExperimenterRelatedTableProperty(tableFeatureBuff, tableFeatureProp);
 293                         break;
 294                     default:
 295                         break;
 296                 }
 297             }
 298             tableFeatureBuff.setShort(TABLE_FEATURES_LENGTH_INDEX, tableFeatureBuff.readableBytes());
 299             outBuffer.writeBytes(tableFeatureBuff);
 300         }
 301     }
 302
 303     private void writeExperimenterRelatedTableProperty(final ByteBuf output, final TableFeatureProperties property) {
 304         long expId = property.getAugmentation(ExperimenterIdTableFeatureProperty.class).getExperimenter().getValue();
 305         OFSerializer<TableFeatureProperties> serializer = registry.getSerializer(ExperimenterSerializerKeyFactory
 306                 .createMultipartRequestTFSerializerKey(EncodeConstants.OF13_VERSION_ID, expId));
 307         serializer.serialize(property, output);
 308     }
 309
 310     private void writeOxmRelatedTableProperty(final ByteBuf output, final TableFeatureProperties property,
 311             final byte code) {
 312         final int startIndex = output.writerIndex();
 313         output.writeShort(code);
 314         int lengthIndex = output.writerIndex();
 315         output.writeShort(EncodeConstants.EMPTY_LENGTH);
 316         List<MatchEntry> entries = property.getAugmentation(OxmRelatedTableFeatureProperty.class).getMatchEntry();
 317         if (entries != null) {
 318             TypeKeyMaker<MatchEntry> keyMaker = TypeKeyMakerFactory
 319                     .createMatchEntriesKeyMaker(EncodeConstants.OF13_VERSION_ID);
 320             ListSerializer.serializeHeaderList(entries, keyMaker, registry, output);
 321         }
 322         int length = output.writerIndex() - startIndex;
 323         output.setShort(lengthIndex, length);
 324         output.writeZero(paddingNeeded(length));
 325     }
 326
 327     private void writeActionsRelatedTableProperty(final ByteBuf output, final TableFeatureProperties property,
 328             final byte code) {
 329         final int startIndex = output.writerIndex();
 330         output.writeShort(code);
 331         int lengthIndex = output.writerIndex();
 332         output.writeShort(EncodeConstants.EMPTY_LENGTH);
 333         List<Action> actions = property.getAugmentation(ActionRelatedTableFeatureProperty.class).getAction();
 334         if (actions != null) {
 335             TypeKeyMaker<Action> keyMaker = TypeKeyMakerFactory.createActionKeyMaker(EncodeConstants.OF13_VERSION_ID);
 336             ListSerializer.serializeHeaderList(actions, keyMaker, registry, output);
 337         }
 338         int length = output.writerIndex() - startIndex;
 339         output.setShort(lengthIndex, length);
 340         output.writeZero(paddingNeeded(length));
 341     }
 342
 343     private static void writeNextTableRelatedTableProperty(final ByteBuf output, final TableFeatureProperties property,
 344             final byte code) {
 345         final int startIndex = output.writerIndex();
 346         output.writeShort(code);
 347         int lengthIndex = output.writerIndex();
 348         output.writeShort(EncodeConstants.EMPTY_LENGTH);
 349         List<NextTableIds> nextTableIds = property.getAugmentation(NextTableRelatedTableFeatureProperty.class)
 350                 .getNextTableIds();
 351         if (nextTableIds != null) {
 352             for (NextTableIds next : nextTableIds) {
 353                 output.writeByte(next.getTableId());
 354             }
 355         }
 356         int length = output.writerIndex() - startIndex;
 357         output.setShort(lengthIndex, length);
 358         output.writeZero(paddingNeeded(length));
 359     }
 360
 361     private void writeInstructionRelatedTableProperty(final ByteBuf output, final TableFeatureProperties property,
 362             final byte code) {
 363         final int startIndex = output.writerIndex();
 364         output.writeShort(code);
 365         int lengthIndex = output.writerIndex();
 366         output.writeShort(EncodeConstants.EMPTY_LENGTH);
 367         List<Instruction> instructions = property.getAugmentation(InstructionRelatedTableFeatureProperty.class)
 368                 .getInstruction();
 369         if (instructions != null) {
 370             TypeKeyMaker<Instruction> keyMaker = TypeKeyMakerFactory
 371                     .createInstructionKeyMaker(EncodeConstants.OF13_VERSION_ID);
 372             ListSerializer.serializeHeaderList(instructions, keyMaker, registry, output);
 373         }
 374         int length = output.writerIndex() - startIndex;
 375         output.setShort(lengthIndex, length);
 376         output.writeZero(paddingNeeded(length));
 377     }
 378
 379     private static int paddingNeeded(final int length) {
 380         int paddingRemainder = length % EncodeConstants.PADDING;
 381         int result = 0;
 382         if (paddingRemainder != 0) {
 383             result = EncodeConstants.PADDING - paddingRemainder;
 384         }
 385         return result;
 386     }
 387
 388     private void writeTableConfig(final TableConfig tableConfig, final ByteBuf outBuffer) {
 389         Map<Integer, Boolean> map = new HashMap<>();
 390         map.put(0, tableConfig.isOFPTCDEPRECATEDMASK());
 391         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 392         outBuffer.writeInt(bitmap);
 393     }
 394
 395     private void serializeMeterFeaturesBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 396         MultipartReplyMeterFeaturesCase meterFeaturesCase = (MultipartReplyMeterFeaturesCase) body;
 397         MultipartReplyMeterFeatures meterFeatures = meterFeaturesCase.getMultipartReplyMeterFeatures();
 398         outBuffer.writeInt(meterFeatures.getMaxMeter().intValue());
 399         writeBandTypes(meterFeatures.getBandTypes(), outBuffer);
 400         writeMeterFlags(meterFeatures.getCapabilities(), outBuffer);
 401         outBuffer.writeByte(meterFeatures.getMaxBands());
 402         outBuffer.writeByte(meterFeatures.getMaxColor());
 403         outBuffer.writeZero(METER_FEATURES_PADDING);
 404     }
 405
 406     private void writeBandTypes(final MeterBandTypeBitmap bandTypes, final ByteBuf outBuffer) {
 407         Map<Integer, Boolean> map = new HashMap<>();
 408         map.put(0, bandTypes.isOFPMBTDROP());
 409         map.put(1, bandTypes.isOFPMBTDSCPREMARK());
 410         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 411         outBuffer.writeInt(bitmap);
 412     }
 413
 414     private void serializeMeterConfigBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 415         MultipartReplyMeterConfigCase meterConfigCase = (MultipartReplyMeterConfigCase) body;
 416         MultipartReplyMeterConfig meter = meterConfigCase.getMultipartReplyMeterConfig();
 417         for (MeterConfig meterConfig : meter.getMeterConfig()) {
 418             ByteBuf meterConfigBuff = UnpooledByteBufAllocator.DEFAULT.buffer();
 419             meterConfigBuff.writeShort(EncodeConstants.EMPTY_LENGTH);
 420             writeMeterFlags(meterConfig.getFlags(), meterConfigBuff);
 421             meterConfigBuff.writeInt(meterConfig.getMeterId().getValue().intValue());
 422             for (Bands currentBand : meterConfig.getBands()) {
 423                 MeterBand meterBand = currentBand.getMeterBand();
 424                 if (meterBand instanceof MeterBandDropCase) {
 425                     MeterBandDropCase dropBandCase = (MeterBandDropCase) meterBand;
 426                     MeterBandDrop dropBand = dropBandCase.getMeterBandDrop();
 427                     writeBandCommonFields(dropBand, meterConfigBuff);
 428                 } else if (meterBand instanceof MeterBandDscpRemarkCase) {
 429                     MeterBandDscpRemarkCase dscpRemarkBandCase = (MeterBandDscpRemarkCase) meterBand;
 430                     MeterBandDscpRemark dscpRemarkBand = dscpRemarkBandCase.getMeterBandDscpRemark();
 431                     writeBandCommonFields(dscpRemarkBand, meterConfigBuff);
 432                 } else if (meterBand instanceof MeterBandExperimenterCase) {
 433                     MeterBandExperimenterCase experimenterBandCase = (MeterBandExperimenterCase) meterBand;
 434                     MeterBandExperimenter experimenterBand = experimenterBandCase.getMeterBandExperimenter();
 435                     writeBandCommonFields(experimenterBand, meterConfigBuff);
 436                 }
 437             }
 438             meterConfigBuff.setShort(METER_CONFIG_LENGTH_INDEX, meterConfigBuff.readableBytes());
 439             outBuffer.writeBytes(meterConfigBuff);
 440         }
 441     }
 442
 443     private static void writeBandCommonFields(final MeterBandCommons meterBand, final ByteBuf outBuffer) {
 444         outBuffer.writeShort(meterBand.getType().getIntValue());
 445         outBuffer.writeShort(LENGTH_OF_METER_BANDS);
 446         outBuffer.writeInt(meterBand.getRate().intValue());
 447         outBuffer.writeInt(meterBand.getBurstSize().intValue());
 448     }
 449
 450     private void writeMeterFlags(final MeterFlags flags, final ByteBuf outBuffer) {
 451         Map<Integer, Boolean> map = new HashMap<>();
 452         map.put(0, flags.isOFPMFKBPS());
 453         map.put(1, flags.isOFPMFPKTPS());
 454         map.put(2, flags.isOFPMFBURST());
 455         map.put(3, flags.isOFPMFSTATS());
 456         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 457         outBuffer.writeShort(bitmap);
 458     }
 459
 460     private void serializeMeterBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 461         MultipartReplyMeterCase meterCase = (MultipartReplyMeterCase) body;
 462         MultipartReplyMeter meter = meterCase.getMultipartReplyMeter();
 463         for (MeterStats meterStats : meter.getMeterStats()) {
 464             ByteBuf meterStatsBuff = UnpooledByteBufAllocator.DEFAULT.buffer();
 465             meterStatsBuff.writeInt(meterStats.getMeterId().getValue().intValue());
 466             meterStatsBuff.writeInt(EncodeConstants.EMPTY_LENGTH);
 467             meterStatsBuff.writeZero(METER_PADDING);
 468             meterStatsBuff.writeInt(meterStats.getFlowCount().intValue());
 469             meterStatsBuff.writeLong(meterStats.getPacketInCount().longValue());
 470             meterStatsBuff.writeLong(meterStats.getByteInCount().longValue());
 471             meterStatsBuff.writeInt(meterStats.getDurationSec().intValue());
 472             meterStatsBuff.writeInt(meterStats.getDurationNsec().intValue());
 473             for (MeterBandStats meterBandStats : meterStats.getMeterBandStats()) {
 474                 meterStatsBuff.writeLong(meterBandStats.getPacketBandCount().longValue());
 475                 meterStatsBuff.writeLong(meterBandStats.getByteBandCount().longValue());
 476             }
 477             meterStatsBuff.setInt(METER_LENGTH_INDEX, meterStatsBuff.readableBytes());
 478             outBuffer.writeBytes(meterStatsBuff);
 479         }
 480     }
 481
 482     private void serializeGroupFeaturesBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 483         MultipartReplyGroupFeaturesCase groupFeaturesCase = (MultipartReplyGroupFeaturesCase) body;
 484         MultipartReplyGroupFeatures groupFeatures = groupFeaturesCase.getMultipartReplyGroupFeatures();
 485         writeGroupTypes(groupFeatures.getTypes(), outBuffer);
 486         writeGroupCapabilities(groupFeatures.getCapabilities(), outBuffer);
 487         for (Long maxGroups : groupFeatures.getMaxGroups()) {
 488             outBuffer.writeInt(maxGroups.intValue());
 489         }
 490         for (ActionType action : groupFeatures.getActionsBitmap()) {
 491             writeActionType(action, outBuffer);
 492         }
 493     }
 494
 495     private void writeActionType(final ActionType action, final ByteBuf outBuffer) {
 496         Map<Integer, Boolean> map = new HashMap<>();
 497         map.put(0, action.isOFPATOUTPUT());
 498         map.put(1, action.isOFPATCOPYTTLOUT());
 499         map.put(2, action.isOFPATCOPYTTLIN());
 500         map.put(3, action.isOFPATSETMPLSTTL());
 501         map.put(4, action.isOFPATDECMPLSTTL());
 502         map.put(5, action.isOFPATPUSHVLAN());
 503         map.put(6, action.isOFPATPOPVLAN());
 504         map.put(7, action.isOFPATPUSHMPLS());
 505         map.put(8, action.isOFPATPOPMPLS());
 506         map.put(9, action.isOFPATSETQUEUE());
 507         map.put(10, action.isOFPATGROUP());
 508         map.put(11, action.isOFPATSETNWTTL());
 509         map.put(12, action.isOFPATDECNWTTL());
 510         map.put(13, action.isOFPATSETFIELD());
 511         map.put(14, action.isOFPATPUSHPBB());
 512         map.put(15, action.isOFPATPOPPBB());
 513         map.put(16, action.isOFPATEXPERIMENTER());
 514         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 515         outBuffer.writeInt(bitmap);
 516     }
 517
 518     private void writeGroupCapabilities(final GroupCapabilities capabilities, final ByteBuf outBuffer) {
 519         Map<Integer, Boolean> map = new HashMap<>();
 520         map.put(0, capabilities.isOFPGFCSELECTWEIGHT());
 521         map.put(1, capabilities.isOFPGFCSELECTLIVENESS());
 522         map.put(2, capabilities.isOFPGFCCHAINING());
 523         map.put(3, capabilities.isOFPGFCCHAININGCHECKS());
 524         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 525         outBuffer.writeInt(bitmap);
 526     }
 527
 528     private void writeGroupTypes(final GroupTypes types, final ByteBuf outBuffer) {
 529         Map<Integer, Boolean> map = new HashMap<>();
 530         map.put(0, types.isOFPGTALL());
 531         map.put(1, types.isOFPGTSELECT());
 532         map.put(2, types.isOFPGTINDIRECT());
 533         map.put(3, types.isOFPGTFF());
 534         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 535         outBuffer.writeInt(bitmap);
 536     }
 537
 538     private void serializeGroupDescBody(final MultipartReplyBody body, final ByteBuf outBuffer,
 539             final MultipartReplyMessage message) {
 540         MultipartReplyGroupDescCase groupDescCase = (MultipartReplyGroupDescCase) body;
 541         MultipartReplyGroupDesc group = groupDescCase.getMultipartReplyGroupDesc();
 542         for (GroupDesc groupDesc : group.getGroupDesc()) {
 543             ByteBuf groupDescBuff = UnpooledByteBufAllocator.DEFAULT.buffer();
 544             groupDescBuff.writeShort(EncodeConstants.EMPTY_LENGTH);
 545             groupDescBuff.writeByte(groupDesc.getType().getIntValue());
 546             groupDescBuff.writeZero(GROUP_DESC_PADDING);
 547             groupDescBuff.writeInt(groupDesc.getGroupId().getValue().intValue());
 548             for (BucketsList bucket : groupDesc.getBucketsList()) {
 549                 ByteBuf bucketBuff = UnpooledByteBufAllocator.DEFAULT.buffer();
 550                 bucketBuff.writeShort(EncodeConstants.EMPTY_LENGTH);
 551                 bucketBuff.writeShort(bucket.getWeight());
 552                 bucketBuff.writeInt(bucket.getWatchPort().getValue().intValue());
 553                 bucketBuff.writeInt(bucket.getWatchGroup().intValue());
 554                 bucketBuff.writeZero(BUCKET_PADDING);
 555                 ListSerializer.serializeList(bucket.getAction(),
 556                         TypeKeyMakerFactory.createActionKeyMaker(message.getVersion()), registry, bucketBuff);
 557                 bucketBuff.setShort(BUCKET_LENGTH_INDEX, bucketBuff.readableBytes());
 558                 groupDescBuff.writeBytes(bucketBuff);
 559             }
 560             groupDescBuff.setShort(GROUP_DESC_LENGTH_INDEX, groupDescBuff.readableBytes());
 561             outBuffer.writeBytes(groupDescBuff);
 562         }
 563     }
 564
 565     private void serializeGroupBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 566         MultipartReplyGroupCase groupCase = (MultipartReplyGroupCase) body;
 567         MultipartReplyGroup group = groupCase.getMultipartReplyGroup();
 568         for (GroupStats groupStats : group.getGroupStats()) {
 569             ByteBuf groupStatsBuff = UnpooledByteBufAllocator.DEFAULT.buffer();
 570             groupStatsBuff.writeShort(EncodeConstants.EMPTY_LENGTH);
 571             groupStatsBuff.writeZero(GROUP_STATS_PADDING_1);
 572             groupStatsBuff.writeInt(groupStats.getGroupId().getValue().intValue());
 573             groupStatsBuff.writeInt(groupStats.getRefCount().intValue());
 574             groupStatsBuff.writeZero(GROUP_STATS_PADDING_2);
 575             groupStatsBuff.writeLong(groupStats.getPacketCount().longValue());
 576             groupStatsBuff.writeLong(groupStats.getByteCount().longValue());
 577             groupStatsBuff.writeInt(groupStats.getDurationSec().intValue());
 578             groupStatsBuff.writeInt(groupStats.getDurationNsec().intValue());
 579             for (BucketStats bucketStats : groupStats.getBucketStats()) {
 580                 groupStatsBuff.writeLong(bucketStats.getPacketCount().longValue());
 581                 groupStatsBuff.writeLong(bucketStats.getByteCount().longValue());
 582             }
 583             groupStatsBuff.setShort(GROUP_STATS_LENGTH_INDEX, groupStatsBuff.readableBytes());
 584             outBuffer.writeBytes(groupStatsBuff);
 585         }
 586     }
 587
 588     private void serializeQueueBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 589         MultipartReplyQueueCase queueCase = (MultipartReplyQueueCase) body;
 590         MultipartReplyQueue queue = queueCase.getMultipartReplyQueue();
 591         for (QueueStats queueStats : queue.getQueueStats()) {
 592             outBuffer.writeInt(queueStats.getPortNo().intValue());
 593             outBuffer.writeInt(queueStats.getQueueId().intValue());
 594             outBuffer.writeLong(queueStats.getTxBytes().longValue());
 595             outBuffer.writeLong(queueStats.getTxPackets().longValue());
 596             outBuffer.writeLong(queueStats.getTxErrors().longValue());
 597             outBuffer.writeInt(queueStats.getDurationSec().intValue());
 598             outBuffer.writeInt(queueStats.getDurationNsec().intValue());
 599         }
 600     }
 601
 602     private void serializePortStatsBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 603         MultipartReplyPortStatsCase portStatsCase = (MultipartReplyPortStatsCase) body;
 604         MultipartReplyPortStats portStats = portStatsCase.getMultipartReplyPortStats();
 605         for (PortStats portStat : portStats.getPortStats()) {
 606             outBuffer.writeInt(portStat.getPortNo().intValue());
 607             outBuffer.writeZero(PORT_STATS_PADDING);
 608             outBuffer.writeLong(portStat.getRxPackets().longValue());
 609             outBuffer.writeLong(portStat.getTxPackets().longValue());
 610             outBuffer.writeLong(portStat.getRxBytes().longValue());
 611             outBuffer.writeLong(portStat.getTxBytes().longValue());
 612             outBuffer.writeLong(portStat.getRxDropped().longValue());
 613             outBuffer.writeLong(portStat.getTxDropped().longValue());
 614             outBuffer.writeLong(portStat.getRxErrors().longValue());
 615             outBuffer.writeLong(portStat.getTxErrors().longValue());
 616             outBuffer.writeLong(portStat.getRxFrameErr().longValue());
 617             outBuffer.writeLong(portStat.getRxOverErr().longValue());
 618             outBuffer.writeLong(portStat.getRxCrcErr().longValue());
 619             outBuffer.writeLong(portStat.getCollisions().longValue());
 620             outBuffer.writeInt(portStat.getDurationSec().intValue());
 621             outBuffer.writeInt(portStat.getDurationNsec().intValue());
 622         }
 623     }
 624
 625     private void serializeTableBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 626         MultipartReplyTableCase tableCase = (MultipartReplyTableCase) body;
 627         MultipartReplyTable table = tableCase.getMultipartReplyTable();
 628         for (TableStats tableStats : table.getTableStats()) {
 629             outBuffer.writeByte(tableStats.getTableId());
 630             outBuffer.writeZero(TABLE_PADDING);
 631             outBuffer.writeInt(tableStats.getActiveCount().intValue());
 632             outBuffer.writeLong(tableStats.getLookupCount().longValue());
 633             outBuffer.writeLong(tableStats.getMatchedCount().longValue());
 634         }
 635     }
 636
 637     private void serializeAggregateBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 638         MultipartReplyAggregateCase aggregateCase = (MultipartReplyAggregateCase) body;
 639         MultipartReplyAggregate aggregate = aggregateCase.getMultipartReplyAggregate();
 640         outBuffer.writeLong(aggregate.getPacketCount().longValue());
 641         outBuffer.writeLong(aggregate.getByteCount().longValue());
 642         outBuffer.writeInt(aggregate.getFlowCount().intValue());
 643         outBuffer.writeZero(AGGREGATE_PADDING);
 644     }
 645
 646     private void serializeFlowBody(final MultipartReplyBody body, final ByteBuf outBuffer,
 647             final MultipartReplyMessage message) {
 648         MultipartReplyFlowCase flowCase = (MultipartReplyFlowCase) body;
 649         MultipartReplyFlow flow = flowCase.getMultipartReplyFlow();
 650         for (FlowStats flowStats : flow.getFlowStats()) {
 651             ByteBuf flowStatsBuff = UnpooledByteBufAllocator.DEFAULT.buffer();
 652             flowStatsBuff.writeShort(EncodeConstants.EMPTY_LENGTH);
 653             flowStatsBuff.writeByte((byte)flowStats.getTableId().longValue());
 654             flowStatsBuff.writeZero(FLOW_STATS_PADDING_1);
 655             flowStatsBuff.writeInt(flowStats.getDurationSec().intValue());
 656             flowStatsBuff.writeInt(flowStats.getDurationNsec().intValue());
 657             flowStatsBuff.writeShort(flowStats.getPriority());
 658             flowStatsBuff.writeShort(flowStats.getIdleTimeout());
 659             flowStatsBuff.writeShort(flowStats.getHardTimeout());
 660             flowStatsBuff.writeZero(FLOW_STATS_PADDING_2);
 661             flowStatsBuff.writeLong(flowStats.getCookie().longValue());
 662             flowStatsBuff.writeLong(flowStats.getPacketCount().longValue());
 663             flowStatsBuff.writeLong(flowStats.getByteCount().longValue());
 664             OFSerializer<Match> matchSerializer = registry.<Match, OFSerializer<Match>>getSerializer(
 665                     new MessageTypeKey<>(message.getVersion(), Match.class));
 666             matchSerializer.serialize(flowStats.getMatch(), flowStatsBuff);
 667             ListSerializer.serializeList(flowStats.getInstruction(),
 668                     TypeKeyMakerFactory.createInstructionKeyMaker(message.getVersion()), registry, flowStatsBuff);
 669
 670             flowStatsBuff.setShort(FLOW_STATS_LENGTH_INDEX, flowStatsBuff.readableBytes());
 671             outBuffer.writeBytes(flowStatsBuff);
 672         }
 673     }
 674
 675     private void serializeDescBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 676         MultipartReplyDescCase descCase = (MultipartReplyDescCase) body;
 677         MultipartReplyDesc desc = descCase.getMultipartReplyDesc();
 678         write256String(desc.getMfrDesc(), outBuffer);
 679         write256String(desc.getHwDesc(), outBuffer);
 680         write256String(desc.getSwDesc(), outBuffer);
 681         write32String(desc.getSerialNum(), outBuffer);
 682         write256String(desc.getDpDesc(), outBuffer);
 683     }
 684
 685     private void write256String(final String toWrite, final ByteBuf outBuffer) {
 686         byte[] nameBytes = toWrite.getBytes(StandardCharsets.UTF_8);
 687         if (nameBytes.length < 256) {
 688             byte[] nameBytesPadding = new byte[256];
 689             int index = 0;
 690             for (byte b : nameBytes) {
 691                 nameBytesPadding[index] = b;
 692                 index++;
 693             }
 694             for (; index < 256; index++) {
 695                 nameBytesPadding[index] = 0x0;
 696             }
 697             outBuffer.writeBytes(nameBytesPadding);
 698         } else {
 699             outBuffer.writeBytes(nameBytes);
 700         }
 701     }
 702
 703     private void write32String(final String toWrite, final ByteBuf outBuffer) {
 704         byte[] nameBytes = toWrite.getBytes(StandardCharsets.UTF_8);
 705         if (nameBytes.length < 32) {
 706             byte[] nameBytesPadding = new byte[32];
 707             int index = 0;
 708             for (byte b : nameBytes) {
 709                 nameBytesPadding[index] = b;
 710                 index++;
 711             }
 712             for (; index < 32; index++) {
 713                 nameBytesPadding[index] = 0x0;
 714             }
 715             outBuffer.writeBytes(nameBytesPadding);
 716         } else {
 717             outBuffer.writeBytes(nameBytes);
 718         }
 719     }
 720
 721     private void serializePortDescBody(final MultipartReplyBody body, final ByteBuf outBuffer) {
 722         MultipartReplyPortDescCase portCase = (MultipartReplyPortDescCase) body;
 723         MultipartReplyPortDesc portDesc = portCase.getMultipartReplyPortDesc();
 724         for (Ports port : portDesc.getPorts()) {
 725             outBuffer.writeInt(port.getPortNo().intValue()); // Assuming PortNo
 726                                                              // = PortId
 727             outBuffer.writeZero(PORT_DESC_PADDING_1);
 728             outBuffer.writeBytes(IetfYangUtil.INSTANCE.bytesFor(port.getHwAddr()));
 729             outBuffer.writeZero(PORT_DESC_PADDING_2);
 730             writeName(port.getName(), outBuffer);
 731             writePortConfig(port.getConfig(), outBuffer);
 732             writePortState(port.getState(), outBuffer);
 733             writePortFeatures(port.getCurrentFeatures(), outBuffer);
 734             writePortFeatures(port.getAdvertisedFeatures(), outBuffer);
 735             writePortFeatures(port.getSupportedFeatures(), outBuffer);
 736             writePortFeatures(port.getPeerFeatures(), outBuffer);
 737             outBuffer.writeInt(port.getCurrSpeed().intValue());
 738             outBuffer.writeInt(port.getMaxSpeed().intValue());
 739         }
 740     }
 741
 742     private void writeName(final String name, final ByteBuf outBuffer) {
 743         byte[] nameBytes = name.getBytes(StandardCharsets.UTF_8);
 744         if (nameBytes.length < 16) {
 745             byte[] nameBytesPadding = new byte[16];
 746             int index = 0;
 747             for (byte b : nameBytes) {
 748                 nameBytesPadding[index] = b;
 749                 index++;
 750             }
 751             for (; index < 16; index++) {
 752                 nameBytesPadding[index] = 0x0;
 753             }
 754             outBuffer.writeBytes(nameBytesPadding);
 755         } else {
 756             outBuffer.writeBytes(nameBytes);
 757         }
 758
 759     }
 760
 761     private void writePortConfig(final PortConfig config, final ByteBuf outBuffer) {
 762         Map<Integer, Boolean> map = new HashMap<>();
 763         map.put(0, config.isPortDown());
 764         map.put(2, config.isNoRecv());
 765         map.put(5, config.isNoFwd());
 766         map.put(6, config.isNoPacketIn());
 767         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 768         outBuffer.writeInt(bitmap);
 769     }
 770
 771     private void writePortState(final PortState state, final ByteBuf outBuffer) {
 772         Map<Integer, Boolean> map = new HashMap<>();
 773         map.put(0, state.isLinkDown());
 774         map.put(1, state.isBlocked());
 775         map.put(2, state.isLive());
 776         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 777         outBuffer.writeInt(bitmap);
 778     }
 779
 780     private void writePortFeatures(final PortFeatures features, final ByteBuf outBuffer) {
 781         Map<Integer, Boolean> map = new HashMap<>();
 782         map.put(0, features.is_10mbHd());
 783         map.put(1, features.is_10mbFd());
 784         map.put(2, features.is_100mbHd());
 785         map.put(3, features.is_100mbFd());
 786         map.put(4, features.is_1gbHd());
 787         map.put(5, features.is_1gbFd());
 788         map.put(6, features.is_10gbFd());
 789         map.put(7, features.is_40gbFd());
 790         map.put(8, features.is_100gbFd());
 791         map.put(9, features.is_1tbFd());
 792         map.put(10, features.isOther());
 793         map.put(11, features.isCopper());
 794         map.put(12, features.isFiber());
 795         map.put(13, features.isAutoneg());
 796         map.put(14, features.isPause());
 797         map.put(15, features.isPauseAsym());
 798         int bitmap = ByteBufUtils.fillBitMaskFromMap(map);
 799         outBuffer.writeInt(bitmap);
 800     }
 801 }