openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/multipart/MultipartReplyGroupStatsDeserializer.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.OFDeserializer;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter32;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Counter64;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.multipart.reply.multipart.reply.body.MultipartReplyGroupStatsBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.BucketId;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.BucketsBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.DurationBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.buckets.BucketCounter;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.buckets.BucketCounterBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.buckets.BucketCounterKey;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.reply.GroupStats;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.reply.GroupStatsBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.group.statistics.reply.GroupStatsKey;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.multipart.types.rev170112.multipart.reply.MultipartReplyBody;
  31
  32 public class MultipartReplyGroupStatsDeserializer implements OFDeserializer<MultipartReplyBody> {
  33
  34     private static final byte PADDING_IN_GROUP_HEADER_01 = 2;
  35     private static final byte PADDING_IN_GROUP_HEADER_02 = 4;
  36     private static final byte GROUP_BODY_LENGTH = 40;
  37     private static final byte BUCKET_COUNTER_LENGTH = 16;
  38
  39     @Override
  40     public MultipartReplyBody deserialize(ByteBuf message) {
  41         final MultipartReplyGroupStatsBuilder builder = new MultipartReplyGroupStatsBuilder();
  42         final List<GroupStats> items = new ArrayList<>();
  43
  44         while (message.readableBytes() > 0) {
  45             final int itemLength = message.readUnsignedShort();
  46             message.skipBytes(PADDING_IN_GROUP_HEADER_01);
  47
  48             final GroupStatsBuilder itemBuilder = new GroupStatsBuilder()
  49                 .setGroupId(new GroupId(message.readUnsignedInt()))
  50                 .setRefCount(new Counter32(message.readUnsignedInt()));
  51
  52             message.skipBytes(PADDING_IN_GROUP_HEADER_02);
  53
  54             final byte[] packetCountg = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  55             message.readBytes(packetCountg);
  56             final byte[] byteCountg = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  57             message.readBytes(byteCountg);
  58
  59             itemBuilder
  60                 .withKey(new GroupStatsKey(itemBuilder.getGroupId()))
  61                 .setPacketCount(new Counter64(new BigInteger(1, packetCountg)))
  62                 .setByteCount(new Counter64(new BigInteger(1, byteCountg)))
  63                 .setDuration(new DurationBuilder()
  64                         .setSecond(new Counter32(message.readUnsignedInt()))
  65                         .setNanosecond(new Counter32(message.readUnsignedInt()))
  66                         .build());
  67
  68             final List<BucketCounter> subItems = new ArrayList<>();
  69             int actualLength = GROUP_BODY_LENGTH;
  70             long bucketKey = 0;
  71
  72             while (actualLength < itemLength) {
  73                 final byte[] packetCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  74                 message.readBytes(packetCount);
  75                 final byte[] byteCount = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  76                 message.readBytes(byteCount);
  77
  78                 subItems.add(new BucketCounterBuilder()
  79                     .setBucketId(new BucketId(bucketKey))
  80                     .withKey(new BucketCounterKey(new BucketId(bucketKey)))
  81                     .setPacketCount(new Counter64(new BigInteger(1, packetCount)))
  82                     .setByteCount(new Counter64(new BigInteger(1, byteCount)))
  83                     .build());
  84
  85                 bucketKey++;
  86                 actualLength += BUCKET_COUNTER_LENGTH;
  87             }
  88
  89             items.add(itemBuilder
  90                     .setBuckets(new BucketsBuilder()
  91                         .setBucketCounter(subItems)
  92                         .build())
  93                     .build());
  94         }
  95
  96         return builder
  97             .setGroupStats(items)
  98             .build();
  99     }
 100
 101 }