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.openflowplugin.api.OFConstants;
  21 import org.opendaylight.openflowplugin.extension.api.path.MatchPath;
  22 import org.opendaylight.openflowplugin.impl.protocol.deserialization.key.MessageCodeMatchKey;
  23 import org.opendaylight.openflowplugin.impl.protocol.deserialization.util.InstructionUtil;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter32;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter64;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapListBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.multipart.reply.multipart.reply.body.MultipartReplyFlowStatsBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowCookie;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowModFlags;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.Match;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.statistics.types.rev130925.duration.DurationBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.multipart.types.rev170112.multipart.reply.MultipartReplyBody;
  38
  39 public class MultipartReplyFlowStatsDeserializer implements OFDeserializer<MultipartReplyBody>, DeserializerRegistryInjector {
  40
  41     private static final MessageCodeKey MATCH_KEY = new MessageCodeMatchKey(EncodeConstants.OF13_VERSION_ID,
  42             EncodeConstants.EMPTY_VALUE, Match.class,
  43             MatchPath.FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_MATCH);
  44
  45     private static final byte PADDING_IN_FLOW_STATS_HEADER_01 = 1;
  46     private static final byte PADDING_IN_FLOW_STATS_HEADER_02 = 4;
  47     private DeserializerRegistry registry;
  48
  49     @Override
  50     public MultipartReplyBody deserialize(ByteBuf message) {
  51         final MultipartReplyFlowStatsBuilder builder = new MultipartReplyFlowStatsBuilder();
  52         final List<FlowAndStatisticsMapList> items = new ArrayList<>();
  53
  54         while (message.readableBytes() > 0) {
  55             final FlowAndStatisticsMapListBuilder itemBuilder = new FlowAndStatisticsMapListBuilder();
  56             final int itemLength = message.readUnsignedShort();
  57             final ByteBuf itemMessage = message.readSlice(itemLength - EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
  58
  59             itemBuilder.setTableId(itemMessage.readUnsignedByte());
  60             itemMessage.skipBytes(PADDING_IN_FLOW_STATS_HEADER_01);
  61
  62             itemBuilder
  63                 .setDuration(new DurationBuilder()
  64                         .setSecond(new Counter32(itemMessage.readUnsignedInt()))
  65                         .setNanosecond(new Counter32(itemMessage.readUnsignedInt()))
  66                         .build())
  67                 .setPriority(itemMessage.readUnsignedShort())
  68                 .setIdleTimeout(itemMessage.readUnsignedShort())
  69                 .setHardTimeout(itemMessage.readUnsignedShort())
  70                 .setFlags(createFlowModFlagsFromBitmap(itemMessage.readUnsignedShort()));
  71
  72             itemMessage.skipBytes(PADDING_IN_FLOW_STATS_HEADER_02);
  73
  74             final byte[] cookie = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  75             itemMessage.readBytes(cookie);
  76             final byte[] packetCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  77             itemMessage.readBytes(packetCount);
  78             final byte[] byteCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  79             itemMessage.readBytes(byteCount);
  80
  81             itemBuilder
  82                 .setCookie(new FlowCookie(new BigInteger(1, cookie)))
  83                 .setCookieMask(new FlowCookie(OFConstants.DEFAULT_COOKIE_MASK))
  84                 .setPacketCount(new Counter64(new BigInteger(1, packetCount)))
  85                 .setByteCount(new Counter64(new BigInteger(1, byteCount)));
  86
  87             final OFDeserializer<Match> matchDeserializer = registry.getDeserializer(MATCH_KEY);
  88             itemBuilder.setMatch(new MatchBuilder(matchDeserializer.deserialize(itemMessage)).build());
  89
  90             final int length = itemMessage.readableBytes();
  91
  92             if (length > 0) {
  93                 final List<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list
  94                     .Instruction> instructions = new ArrayList<>();
  95                 final int startIndex = itemMessage.readerIndex();
  96                 int offset = 0;
  97
  98                 while ((itemMessage.readerIndex() - startIndex) < length) {
  99                     instructions.add(new InstructionBuilder()
 100                             .setKey(new InstructionKey(offset))
 101                             .setOrder(offset)
 102                             .setInstruction(InstructionUtil
 103                                 .readInstruction(EncodeConstants.OF13_VERSION_ID, itemMessage, registry))
 104                             .build());
 105
 106                     offset++;
 107                 }
 108
 109                 itemBuilder.setInstructions(new InstructionsBuilder()
 110                         .setInstruction(instructions)
 111                         .build());
 112             }
 113
 114             items.add(itemBuilder.build());
 115         }
 116
 117         return builder
 118             .setFlowAndStatisticsMapList(items)
 119             .build();
 120     }
 121
 122     private static FlowModFlags createFlowModFlagsFromBitmap(int input) {
 123         final Boolean _oFPFFSENDFLOWREM = (input & (1)) > 0;
 124         final Boolean _oFPFFCHECKOVERLAP = (input & (1 << 1)) > 0;
 125         final Boolean _oFPFFRESETCOUNTS = (input & (1 << 2)) > 0;
 126         final Boolean _oFPFFNOPKTCOUNTS = (input & (1 << 3)) > 0;
 127         final Boolean _oFPFFNOBYTCOUNTS = (input & (1 << 4)) > 0;
 128         return new FlowModFlags(_oFPFFCHECKOVERLAP, _oFPFFNOBYTCOUNTS, _oFPFFNOPKTCOUNTS, _oFPFFRESETCOUNTS,
 129                 _oFPFFSENDFLOWREM);
 130     }
 131
 132     @Override
 133     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
 134         registry = deserializerRegistry;
 135     }
 136
 137 }