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.openflowplugin.impl.util.MatchUtil;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter32;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter64;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapList;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.flow.and.statistics.map.list.FlowAndStatisticsMapListBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.multipart.reply.multipart.reply.body.MultipartReplyFlowStatsBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowCookie;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowModFlags;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  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>,
  40         DeserializerRegistryInjector {
  41
  42     private static final MessageCodeKey MATCH_KEY = new MessageCodeMatchKey(EncodeConstants.OF13_VERSION_ID,
  43             EncodeConstants.EMPTY_VALUE, Match.class,
  44             MatchPath.FLOWSSTATISTICSUPDATE_FLOWANDSTATISTICSMAPLIST_MATCH);
  45
  46     private static final byte PADDING_IN_FLOW_STATS_HEADER_01 = 1;
  47     private static final byte PADDING_IN_FLOW_STATS_HEADER_02 = 4;
  48     private DeserializerRegistry registry;
  49
  50     @Override
  51     public MultipartReplyBody deserialize(ByteBuf message) {
  52         final MultipartReplyFlowStatsBuilder builder = new MultipartReplyFlowStatsBuilder();
  53         final List<FlowAndStatisticsMapList> items = new ArrayList<>();
  54
  55         while (message.readableBytes() > 0) {
  56             final FlowAndStatisticsMapListBuilder itemBuilder = new FlowAndStatisticsMapListBuilder();
  57             final int itemLength = message.readUnsignedShort();
  58             final ByteBuf itemMessage = message.readSlice(itemLength - EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
  59
  60             itemBuilder.setTableId(itemMessage.readUnsignedByte());
  61             itemMessage.skipBytes(PADDING_IN_FLOW_STATS_HEADER_01);
  62
  63             itemBuilder
  64                     .setDuration(new DurationBuilder()
  65                             .setSecond(new Counter32(itemMessage.readUnsignedInt()))
  66                             .setNanosecond(new Counter32(itemMessage.readUnsignedInt()))
  67                             .build())
  68                     .setPriority(itemMessage.readUnsignedShort())
  69                     .setIdleTimeout(itemMessage.readUnsignedShort())
  70                     .setHardTimeout(itemMessage.readUnsignedShort())
  71                     .setFlags(createFlowModFlagsFromBitmap(itemMessage.readUnsignedShort()));
  72
  73             itemMessage.skipBytes(PADDING_IN_FLOW_STATS_HEADER_02);
  74
  75             final byte[] cookie = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  76             itemMessage.readBytes(cookie);
  77             final byte[] packetCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  78             itemMessage.readBytes(packetCount);
  79             final byte[] byteCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  80             itemMessage.readBytes(byteCount);
  81
  82             itemBuilder
  83                     .setCookie(new FlowCookie(new BigInteger(1, cookie)))
  84                     .setCookieMask(new FlowCookie(OFConstants.DEFAULT_COOKIE_MASK))
  85                     .setPacketCount(new Counter64(new BigInteger(1, packetCount)))
  86                     .setByteCount(new Counter64(new BigInteger(1, byteCount)));
  87
  88             final OFDeserializer<Match> matchDeserializer = registry.getDeserializer(MATCH_KEY);
  89             itemBuilder.setMatch(MatchUtil.transformMatch(matchDeserializer.deserialize(itemMessage),
  90                     org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match.class));
  91
  92             final int length = itemMessage.readableBytes();
  93
  94             if (length > 0) {
  95                 final List<org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list
  96                         .Instruction> instructions = new ArrayList<>();
  97                 final int startIndex = itemMessage.readerIndex();
  98                 int offset = 0;
  99
 100                 while ((itemMessage.readerIndex() - startIndex) < length) {
 101                     instructions.add(new InstructionBuilder()
 102                             .setKey(new InstructionKey(offset))
 103                             .setOrder(offset)
 104                             .setInstruction(InstructionUtil
 105                                     .readInstruction(EncodeConstants.OF13_VERSION_ID, itemMessage, registry))
 106                             .build());
 107
 108                     offset++;
 109                 }
 110
 111                 itemBuilder.setInstructions(new InstructionsBuilder()
 112                         .setInstruction(instructions)
 113                         .build());
 114             }
 115
 116             items.add(itemBuilder.build());
 117         }
 118
 119         return builder
 120                 .setFlowAndStatisticsMapList(items)
 121                 .build();
 122     }
 123
 124     private static FlowModFlags createFlowModFlagsFromBitmap(int input) {
 125         final Boolean ofp_FF_SendFlowRem = (input & (1)) > 0;
 126         final Boolean ofp_FF_CheckOverlap = (input & (1 << 1)) > 0;
 127         final Boolean ofp_FF_ResetCounts = (input & (1 << 2)) > 0;
 128         final Boolean ofp_FF_NoPktCounts = (input & (1 << 3)) > 0;
 129         final Boolean ofp_FF_NoBytCounts = (input & (1 << 4)) > 0;
 130         return new FlowModFlags(ofp_FF_CheckOverlap, ofp_FF_NoBytCounts, ofp_FF_NoPktCounts, ofp_FF_ResetCounts,
 131                 ofp_FF_SendFlowRem);
 132     }
 133
 134     @Override
 135     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
 136         registry = deserializerRegistry;
 137     }
 138
 139 }