satellite-stats-frame-type-usage-helper.cc

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/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2014 Magister Solutions
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Lauri Sormunen <lauri.sormunen@magister.fi>
 *
 */
 
#include "satellite-stats-frame-type-usage-helper.h"
 
#include <ns3/boolean.h>
#include <ns3/callback.h>
#include <ns3/data-collection-object.h>
#include <ns3/distribution-collector.h>
#include <ns3/enum.h>
#include <ns3/fatal-error.h>
#include <ns3/log.h>
#include <ns3/multi-file-aggregator.h>
#include <ns3/node-container.h>
#include <ns3/satellite-beam-helper.h>
#include <ns3/satellite-beam-scheduler.h>
#include <ns3/satellite-gw-mac.h>
#include <ns3/satellite-helper.h>
#include <ns3/satellite-ncc.h>
#include <ns3/scalar-collector.h>
#include <ns3/string.h>
 
#include <list>
#include <sstream>
#include <utility>
 
NS_LOG_COMPONENT_DEFINE("SatStatsFrameTypeUsageHelper");
 
namespace ns3
{
 
NS_OBJECT_ENSURE_REGISTERED(SatStatsFrameTypeUsageHelper);
 
const std::map<SatEnums::SatBbFrameType_t, uint32_t> SatStatsFrameTypeUsageHelper::frameTypeIdMap =
    {{SatEnums::UNDEFINED_FRAME, 0},
     {SatEnums::SHORT_FRAME, 1},
     {SatEnums::NORMAL_FRAME, 2},
     {SatEnums::DUMMY_FRAME, 3}};
 
SatStatsFrameTypeUsageHelper::SatStatsFrameTypeUsageHelper(Ptr<const SatHelper> satHelper)
    : SatStatsHelper(satHelper),
      m_usePercentage(false)
{
    NS_LOG_FUNCTION(this << satHelper);
}
 
SatStatsFrameTypeUsageHelper::~SatStatsFrameTypeUsageHelper()
{
    NS_LOG_FUNCTION(this);
}
 
TypeId // static
SatStatsFrameTypeUsageHelper::GetTypeId()
{
    static TypeId tid =
        TypeId("ns3::SatStatsFrameTypeUsageHelper")
            .SetParent<SatStatsHelper>()
            .AddAttribute("Percentage",
                          "Use percentage of each frame type instead of sum per identifier.",
                          BooleanValue(false),
                          MakeBooleanAccessor(&SatStatsFrameTypeUsageHelper::m_usePercentage),
                          MakeBooleanChecker());
    return tid;
}
 
void
SatStatsFrameTypeUsageHelper::DoInstall()
{
    NS_LOG_FUNCTION(this);
 
    if (GetOutputType() != SatStatsHelper::OUTPUT_SCALAR_FILE)
    {
        NS_FATAL_ERROR(GetOutputTypeName(GetOutputType())
                       << " is not a valid output type for this statistics.");
    }
 
    if (GetIdentifierType() == SatStatsHelper::IDENTIFIER_UT ||
        GetIdentifierType() == SatStatsHelper::IDENTIFIER_UT_USER)
    {
        NS_FATAL_ERROR(GetIdentifierTypeName(GetIdentifierType())
                       << " is not a valid identifier type for this statistics.");
    }
 
    // Setup aggregator.
    std::string dataLabel;
    if (m_usePercentage)
        dataLabel = "usage_percentage";
    else
        dataLabel = "usage_count";
 
    m_aggregator = CreateAggregator("ns3::MultiFileAggregator",
                                    "OutputFileName",
                                    StringValue(GetOutputFileName()),
                                    "MultiFileMode",
                                    BooleanValue(false),
                                    "EnableContextPrinting",
                                    BooleanValue(true),
                                    "GeneralHeading",
                                    StringValue(GetIdentifierHeading(dataLabel)));
 
    // For each frame type ID, create a CollectorMap instance
    for (auto it : frameTypeIdMap)
    {
        uint32_t frameTypeId = it.second;
        // Newly discovered waveform ID
        NS_LOG_INFO(this << " Creating new collectors for frame type ID " << frameTypeId);
 
        CollectorMap collectorMap;
        ScalarCollector::OutputType_t opType;
        if (m_usePercentage)
            opType = ScalarCollector::OUTPUT_TYPE_AVERAGE_PER_SAMPLE;
        else
            opType = ScalarCollector::OUTPUT_TYPE_SUM;
 
        collectorMap.SetType("ns3::ScalarCollector");
        collectorMap.SetAttribute("OutputType", EnumValue(opType));
        collectorMap.SetAttribute("InputDataType",
                                  EnumValue(ScalarCollector::INPUT_DATA_TYPE_UINTEGER));
        uint32_t n = 0;
        /*
         * Create a new set of collectors. Its name consists of two integers:
         *   - the first is the identifier ID (beam ID, GW ID, or simply zero for
         *     global);
         *   - the second is the frame ID.
         */
        switch (GetIdentifierType())
        {
        case SatStatsHelper::IDENTIFIER_GLOBAL: {
            std::ostringstream name;
            name << "0 " << frameTypeId;
            collectorMap.SetAttribute("Name", StringValue(name.str()));
            collectorMap.Create(0);
            n++;
            break;
        }
 
        case SatStatsHelper::IDENTIFIER_GW: {
            NodeContainer gws = GetSatHelper()->GetBeamHelper()->GetGwNodes();
            for (NodeContainer::Iterator it = gws.Begin(); it != gws.End(); ++it)
            {
                const uint32_t gwId = GetGwId(*it);
                std::ostringstream name;
                name << gwId << " " << frameTypeId;
                collectorMap.SetAttribute("Name", StringValue(name.str()));
                collectorMap.Create(gwId);
                n++;
            }
            break;
        }
 
        case SatStatsHelper::IDENTIFIER_BEAM: {
            std::list<std::pair<uint32_t, uint32_t>> beams =
                GetSatHelper()->GetBeamHelper()->GetBeams();
            for (std::list<std::pair<uint32_t, uint32_t>>::const_iterator it = beams.begin();
                 it != beams.end();
                 ++it)
            {
                const uint32_t satId = (it->first);
                const uint32_t beamId = (it->second);
                std::ostringstream name;
                name << satId << "-" << beamId << " " << frameTypeId;
                collectorMap.SetAttribute("Name", StringValue(name.str()));
                collectorMap.Create(SatConstVariables::MAX_BEAMS_PER_SATELLITE * (satId + 1) +
                                    beamId);
                n++;
            }
            break;
        }
 
        default:
            NS_FATAL_ERROR("SatStatsWaveformUsageHelper - Invalid identifier type");
            break;
        }
 
        collectorMap.ConnectToAggregator("Output", m_aggregator, &MultiFileAggregator::Write1d);
 
        NS_LOG_INFO(this << " created " << n << " instance(s)"
                         << " of " << collectorMap.GetType().GetName() << " for "
                         << GetIdentifierTypeName(GetIdentifierType()));
 
        std::pair<std::map<uint32_t, CollectorMap>::iterator, bool> ret;
        ret = m_collectors.insert(std::make_pair(frameTypeId, collectorMap));
        NS_ASSERT(ret.second);
    }
 
    // Create the callback for trace source
    Callback<void, std::string, Ptr<SatBbFrame>> frameTypeUsageCallback =
        MakeCallback(&SatStatsFrameTypeUsageHelper::FrameTypeUsageCallback, this);
 
    // Connect SatGwMac of each beam by identifier (global, gw, beam) to callback
    NodeContainer gwNodes = GetSatHelper()->GetBeamHelper()->GetGwNodes();
    for (auto node = gwNodes.Begin(); node != gwNodes.End(); node++)
    {
        for (uint32_t i = 0; i < (*node)->GetNDevices(); i++)
        {
            Ptr<SatNetDevice> dev = DynamicCast<SatNetDevice>((*node)->GetDevice(i));
            if (dev == NULL)
                continue;
            Ptr<SatGwMac> mac = DynamicCast<SatGwMac>(dev->GetMac());
            if (mac == NULL)
                continue;
 
            // Connect the trace source
            uint32_t beamId = mac->GetBeamId();
            uint32_t satId = mac->GetSatId();
            std::ostringstream context;
            context << GetIdentifierForBeam(satId, beamId);
            const bool ret =
                mac->TraceConnect("BBFrameTxTrace", context.str(), frameTypeUsageCallback);
            NS_ASSERT_MSG(ret, "Error connecting to BBFrameTxTrace of beam " << beamId);
            NS_LOG_INFO(this << " successfully connected"
                             << " with beam " << beamId);
        }
    }
 
} // end of `void DoInstall ();`
 
std::string
SatStatsFrameTypeUsageHelper::GetIdentifierHeading(std::string dataLabel) const
{
    switch (GetIdentifierType())
    {
    case SatStatsHelper::IDENTIFIER_GLOBAL:
        return "% global frame_type " + dataLabel;
 
    case SatStatsHelper::IDENTIFIER_GW:
        return "% gw_id frame_type " + dataLabel;
 
    case SatStatsHelper::IDENTIFIER_BEAM:
        return "% beam_id frame_type " + dataLabel;
 
    default:
        NS_FATAL_ERROR("SatStatsFrameTypeUsageHelper - Invalid identifier type");
        break;
    }
    return "";
}
 
// static
uint32_t
SatStatsFrameTypeUsageHelper::GetFrameTypeId(SatEnums::SatBbFrameType_t frameType)
{
    auto it = frameTypeIdMap.find(frameType);
    NS_ASSERT(it != frameTypeIdMap.end());
    return it->second;
}
 
void
SatStatsFrameTypeUsageHelper::FrameTypeUsageCallback(std::string context, Ptr<SatBbFrame> bbFrame)
{
    SatEnums::SatBbFrameType_t frameType =
        bbFrame ? bbFrame->GetFrameType() : SatEnums::DUMMY_FRAME;
    NS_LOG_FUNCTION(this << context << SatEnums::GetFrameTypeName(frameType));
 
    // convert context to number
    std::stringstream ss(context);
    uint32_t identifier;
    if (!(ss >> identifier))
    {
        NS_FATAL_ERROR("Cannot convert '" << context << "' to number");
    }
    uint32_t frameTypeId = GetFrameTypeId(frameType);
 
    std::map<uint32_t, CollectorMap>::iterator it = m_collectors.find(frameTypeId);
 
    NS_ASSERT(it != m_collectors.end());
    if (!m_usePercentage)
    {
        // Find the collector with the right identifier.
        Ptr<DataCollectionObject> collector = it->second.Get(identifier);
        NS_ASSERT_MSG(collector != nullptr,
                      "Unable to find collector with identifier " << identifier);
 
        Ptr<ScalarCollector> c = collector->GetObject<ScalarCollector>();
        NS_ASSERT(c != nullptr);
 
        // Pass the sample to the collector.
        c->TraceSinkUinteger32(0, 1);
    }
    else
    {
        // Push 0 to all other frame type collectors of the beam/gw/global identifier
        // and 1 to the collector of the right frame type
        for (auto it : m_collectors)
        {
            Ptr<DataCollectionObject> collector = it.second.Get(identifier);
            NS_ASSERT_MSG(collector != nullptr,
                          "Unable to find collector with identifier " << identifier);
            Ptr<ScalarCollector> c = collector->GetObject<ScalarCollector>();
            NS_ASSERT(c != nullptr);
            if (it.first == frameTypeId)
                c->TraceSinkUinteger32(0, 1);
            else
                c->TraceSinkUinteger32(0, 0);
        }
    }
 
} // end of `void FrameTypeUsageCallback (std::string, uint32_t)`
 
} // end of namespace ns3