openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/multipart/MultipartReplyFlowTableStatsDeserializer.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.flow.table.statistics.rev131215.flow.table.and.statistics.map.FlowTableAndStatisticsMap;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.and.statistics.map.FlowTableAndStatisticsMapBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.flow.table.and.statistics.map.FlowTableAndStatisticsMapKey;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.multipart.reply.multipart.reply.body.MultipartReplyFlowTableStatsBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.multipart.types.rev170112.multipart.reply.MultipartReplyBody;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.TableId;
  25
  26 public class MultipartReplyFlowTableStatsDeserializer implements OFDeserializer<MultipartReplyBody> {
  27
  28     private static final byte PADDING_IN_TABLE_HEADER = 3;
  29
  30     @Override
  31     public MultipartReplyBody deserialize(ByteBuf message) {
  32         final MultipartReplyFlowTableStatsBuilder builder = new MultipartReplyFlowTableStatsBuilder();
  33         final List<FlowTableAndStatisticsMap> items = new ArrayList<>();
  34
  35         while (message.readableBytes() > 0) {
  36             final FlowTableAndStatisticsMapBuilder itemBuilder = new FlowTableAndStatisticsMapBuilder()
  37                 .setTableId(new TableId(message.readUnsignedByte()));
  38
  39             message.skipBytes(PADDING_IN_TABLE_HEADER);
  40
  41             itemBuilder
  42                 .withKey(new FlowTableAndStatisticsMapKey(itemBuilder.getTableId()))
  43                 .setActiveFlows(new Counter32(message.readUnsignedInt()));
  44
  45             final byte[] packetsLooked = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  46             message.readBytes(packetsLooked);
  47             final byte[] packetsMatched = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  48             message.readBytes(packetsMatched);
  49
  50             items.add(itemBuilder
  51                 .setPacketsLookedUp(new Counter64(new BigInteger(1, packetsLooked)))
  52                 .setPacketsMatched(new Counter64(new BigInteger(1, packetsMatched)))
  53                 .build());
  54         }
  55
  56         return builder
  57             .setFlowTableAndStatisticsMap(items)
  58             .build();
  59     }
  60
  61 }