satellite-stats-waveform-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: Budiarto Herman <budiarto.herman@magister.fi>
 *
 */
 
#include "satellite-stats-waveform-usage-helper.h"
 
#include "ns3/boolean.h"
#include "ns3/callback.h"
#include "ns3/data-collection-object.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-helper.h"
#include "ns3/satellite-ncc.h"
#include "ns3/satellite-topology.h"
#include "ns3/scalar-collector.h"
#include "ns3/singleton.h"
#include "ns3/string.h"
 
#include <list>
#include <map>
#include <sstream>
#include <string>
#include <utility>
 
NS_LOG_COMPONENT_DEFINE("SatStatsWaveformUsageHelper");
 
namespace ns3
{
 
NS_OBJECT_ENSURE_REGISTERED(SatStatsWaveformUsageHelper);
 
SatStatsWaveformUsageHelper::SatStatsWaveformUsageHelper(Ptr<const SatHelper> satHelper)
    : SatStatsHelper(satHelper)
{
    NS_LOG_FUNCTION(this << satHelper);
}
 
SatStatsWaveformUsageHelper::~SatStatsWaveformUsageHelper()
{
    NS_LOG_FUNCTION(this);
}
 
TypeId // static
SatStatsWaveformUsageHelper::GetTypeId()
{
    static TypeId tid = TypeId("ns3::SatStatsWaveformUsageHelper").SetParent<SatStatsHelper>();
    return tid;
}
 
void
SatStatsWaveformUsageHelper::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.
    m_aggregator = CreateAggregator("ns3::MultiFileAggregator",
                                    "OutputFileName",
                                    StringValue(GetOutputFileName()),
                                    "MultiFileMode",
                                    BooleanValue(false),
                                    "EnableContextPrinting",
                                    BooleanValue(true),
                                    "GeneralHeading",
                                    StringValue(GetIdentifierHeading("usage_count")));
 
    Callback<void, std::string, uint32_t> waveformUsageCallback =
        MakeCallback(&SatStatsWaveformUsageHelper::WaveformUsageCallback, this);
 
    // Setup probes.
    Ptr<SatBeamHelper> beamHelper = GetSatHelper()->GetBeamHelper();
    NS_ASSERT(beamHelper != nullptr);
    Ptr<SatNcc> ncc = beamHelper->GetNcc();
    NS_ASSERT(ncc != nullptr);
    std::list<std::pair<uint32_t, uint32_t>> beams = beamHelper->GetBeams();
 
    for (std::list<std::pair<uint32_t, uint32_t>>::const_iterator it = beams.begin();
         it != beams.end();
         ++it)
    {
        std::ostringstream context;
        context << GetIdentifierForBeam(it->first, it->second);
 
        Ptr<SatBeamScheduler> s = ncc->GetBeamScheduler(it->first, it->second);
        NS_ASSERT_MSG(s != nullptr, "Error finding beam " << it->second);
        const bool ret = s->TraceConnect("WaveformTrace", context.str(), waveformUsageCallback);
        NS_ASSERT_MSG(ret, "Error connecting to WaveformTrace of beam " << it->second);
        NS_LOG_INFO(this << " successfully connected" << " with beam " << it->second);
    }
 
} // end of `void DoInstall ();`
 
std::string
SatStatsWaveformUsageHelper::GetIdentifierHeading(std::string dataLabel) const
{
    switch (GetIdentifierType())
    {
    case SatStatsHelper::IDENTIFIER_GLOBAL:
        return "% global waveform_id " + dataLabel;
 
    case SatStatsHelper::IDENTIFIER_GW:
        return "% gw_id waveform_id " + dataLabel;
 
    case SatStatsHelper::IDENTIFIER_BEAM:
        return "% beam_id waveform_id " + dataLabel;
 
    default:
        NS_FATAL_ERROR("SatStatsWaveformUsageHelper - Invalid identifier type");
        break;
    }
    return "";
}
 
void
SatStatsWaveformUsageHelper::WaveformUsageCallback(std::string context, uint32_t waveformId)
{
    NS_LOG_FUNCTION(this << context << waveformId);
 
    // convert context to number
    std::stringstream ss(context);
    uint32_t identifier;
    if (!(ss >> identifier))
    {
        NS_FATAL_ERROR("Cannot convert '" << context << "' to number");
    }
 
    std::map<uint32_t, CollectorMap>::iterator it = m_collectors.find(waveformId);
    if (it == m_collectors.end())
    {
        // Newly discovered waveform ID
        NS_LOG_INFO(this << " Creating new collectors for waveform ID " << waveformId);
        CollectorMap collectorMap;
        collectorMap.SetType("ns3::ScalarCollector");
        collectorMap.SetAttribute("InputDataType",
                                  EnumValue(ScalarCollector::INPUT_DATA_TYPE_UINTEGER));
        collectorMap.SetAttribute("OutputType", EnumValue(ScalarCollector::OUTPUT_TYPE_SUM));
        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 " << waveformId;
            collectorMap.SetAttribute("Name", StringValue(name.str()));
            collectorMap.Create(0);
            n++;
            break;
        }
 
        case SatStatsHelper::IDENTIFIER_GW: {
            NodeContainer gws = Singleton<SatTopology>::Get()->GetGwNodes();
            for (NodeContainer::Iterator it = gws.Begin(); it != gws.End(); ++it)
            {
                const uint32_t gwId = GetGwId(*it);
                std::ostringstream name;
                name << gwId << " " << waveformId;
                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 << " " << waveformId;
                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(waveformId, collectorMap));
        NS_ASSERT(ret.second);
        it = ret.first;
 
    } // end of `if (it == m_collectors.end ())`
 
    NS_ASSERT(it != m_collectors.end());
 
    // 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);
 
} // end of `void WaveformUsageCallback (std::string, uint32_t)`
 
} // end of namespace ns3