openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/multipart/MultipartReplyFlowStatsDeserializer.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. 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
   9 package org.opendaylight.openflowplugin.impl.protocol.deserialization.multipart;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import java.math.BigInteger;
  13 import java.util.ArrayList;
  14 import java.util.List;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  18 import org.opendaylight.openflowjava.protocol.api.keys.MessageCodeKey;
  19 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  20 import org.opendaylight.openflowjava.protocol.impl.util.InstructionConstants;
  21 import org.opendaylight.openflowplugin.api.openflow.protocol.deserialization.MessageCodeExperimenterKey;
  22 import org.opendaylight.openflowplugin.extension.api.path.ActionPath;
  23 import org.opendaylight.openflowplugin.extension.api.path.MatchPath;
  24 import org.opendaylight.openflowplugin.impl.protocol.deserialization.key.MessageCodeActionExperimenterKey;
  25 import org.opendaylight.openflowplugin.impl.protocol.deserialization.key.MessageCodeMatchKey;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter32;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter64;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapListBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.multipart.reply.multipart.reply.body.MultipartReplyFlowStatsBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowCookie;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowModFlags;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.Match;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.statistics.types.rev130925.duration.DurationBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.multipart.types.rev170112.multipart.reply.MultipartReplyBody;
  41
  42 public class MultipartReplyFlowStatsDeserializer implements OFDeserializer<MultipartReplyBody>, DeserializerRegistryInjector {
  43
  44     private static final MessageCodeKey MATCH_KEY = new MessageCodeMatchKey(EncodeConstants.OF13_VERSION_ID,
  45             EncodeConstants.EMPTY_VALUE, Match.class,
  46             MatchPath.FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_MATCH);
  47
  48     private static final byte PADDING_IN_FLOW_STATS_HEADER_01 = 1;
  49     private static final byte PADDING_IN_FLOW_STATS_HEADER_02 = 4;
  50     private DeserializerRegistry registry;
  51
  52     @Override
  53     public MultipartReplyBody deserialize(ByteBuf message) {
  54         final MultipartReplyFlowStatsBuilder builder = new MultipartReplyFlowStatsBuilder();
  55         final List<FlowAndStatisticsMapList> items = new ArrayList<>();
  56
  57         while (message.readableBytes() > 0) {
  58             final FlowAndStatisticsMapListBuilder itemBuilder = new FlowAndStatisticsMapListBuilder();
  59             final int itemLength = message.readUnsignedShort();
  60             final ByteBuf itemMessage = message.readSlice(itemLength - EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
  61
  62             itemBuilder.setTableId(itemMessage.readUnsignedByte());
  63             itemMessage.skipBytes(PADDING_IN_FLOW_STATS_HEADER_01);
  64
  65
  66             itemBuilder
  67                 .setDuration(new DurationBuilder()
  68                         .setSecond(new Counter32(itemMessage.readUnsignedInt()))
  69                         .setNanosecond(new Counter32(itemMessage.readUnsignedInt()))
  70                         .build())
  71                 .setPriority(itemMessage.readUnsignedShort())
  72                 .setIdleTimeout(itemMessage.readUnsignedShort())
  73                 .setHardTimeout(itemMessage.readUnsignedShort())
  74                 .setFlags(createFlowModFlagsFromBitmap(itemMessage.readUnsignedShort()));
  75
  76             itemMessage.skipBytes(PADDING_IN_FLOW_STATS_HEADER_02);
  77
  78             itemBuilder
  79                 .setCookie(new FlowCookie(BigInteger.valueOf(message.readLong())))
  80                 .setCookieMask(new FlowCookie(BigInteger.valueOf(message.readLong())))
  81                 .setPacketCount(new Counter64(BigInteger.valueOf(message.readLong())))
  82                 .setByteCount(new Counter64(BigInteger.valueOf(message.readLong())));
  83
  84
  85             final OFDeserializer<Match> matchDeserializer = registry.getDeserializer(MATCH_KEY);
  86             itemBuilder.setMatch(new MatchBuilder(matchDeserializer.deserialize(message)).build());
  87
  88             final int length = itemMessage.readableBytes();
  89
  90             if (length > 0) {
  91                 final List<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list
  92                     .Instruction> instructions = new ArrayList<>();
  93                 final int startIndex = itemMessage.readerIndex();
  94                 int offset = 0;
  95
  96                 while ((itemMessage.readerIndex() - startIndex) < length) {
  97                     final int type = itemMessage.getUnsignedShort(itemMessage.readerIndex());
  98                     OFDeserializer<Instruction> deserializer = null;
  99
 100                     if (InstructionConstants.APPLY_ACTIONS_TYPE == type) {
 101                         deserializer = registry.getDeserializer(
 102                                 new MessageCodeActionExperimenterKey(
 103                                     EncodeConstants.OF13_VERSION_ID, type, Instruction.class,
 104                                     ActionPath.NODES_NODE_TABLE_FLOW_INSTRUCTIONS_INSTRUCTION_APPLYACTIONSCASE_APPLYACTIONS_ACTION_ACTION_EXTENSIONLIST_EXTENSION,
 105                                     null));
 106                     } else if (InstructionConstants.WRITE_ACTIONS_TYPE == type) {
 107                         deserializer = registry.getDeserializer(
 108                                 new MessageCodeActionExperimenterKey(
 109                                     EncodeConstants.OF13_VERSION_ID, type, Instruction.class,
 110                                     ActionPath.NODES_NODE_TABLE_FLOW_INSTRUCTIONS_INSTRUCTION_WRITEACTIONSCASE_WRITEACTIONS_ACTION_ACTION_EXTENSIONLIST_EXTENSION,
 111                                     null));
 112                     } else {
 113                         Long expId = null;
 114
 115                         if (EncodeConstants.EXPERIMENTER_VALUE == type) {
 116                             expId = itemMessage.getUnsignedInt(itemMessage.readerIndex() +
 117                                     2 * EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
 118                         }
 119
 120                         deserializer = registry.getDeserializer(
 121                                 new MessageCodeExperimenterKey(
 122                                     EncodeConstants.OF13_VERSION_ID, type, Instruction.class, expId));
 123                     }
 124
 125                     instructions.add(new InstructionBuilder()
 126                             .setKey(new InstructionKey(offset))
 127                             .setOrder(offset)
 128                             .setInstruction(deserializer.deserialize(itemMessage))
 129                             .build());
 130
 131                     offset++;
 132                 }
 133
 134                 itemBuilder.setInstructions(new InstructionsBuilder()
 135                         .setInstruction(instructions)
 136                         .build());
 137             }
 138
 139             items.add(itemBuilder.build());
 140         }
 141
 142         return builder
 143             .setFlowAndStatisticsMapList(items)
 144             .build();
 145     }
 146
 147     private static FlowModFlags createFlowModFlagsFromBitmap(int input) {
 148         final Boolean _oFPFFSENDFLOWREM = (input & (1 << 0)) > 0;
 149         final Boolean _oFPFFCHECKOVERLAP = (input & (1 << 1)) > 0;
 150         final Boolean _oFPFFRESETCOUNTS = (input & (1 << 2)) > 0;
 151         final Boolean _oFPFFNOPKTCOUNTS = (input & (1 << 3)) > 0;
 152         final Boolean _oFPFFNOBYTCOUNTS = (input & (1 << 4)) > 0;
 153         return new FlowModFlags(_oFPFFCHECKOVERLAP, _oFPFFNOBYTCOUNTS, _oFPFFNOPKTCOUNTS, _oFPFFRESETCOUNTS,
 154                 _oFPFFSENDFLOWREM);
 155     }
 156
 157     @Override
 158     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
 159         registry = deserializerRegistry;
 160     }
 161
 162 }