sqlite-data-output.cc

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/*
 * Copyright (c) 2008 Drexel University
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Author: Joe Kopena (tjkopena@cs.drexel.edu)
 */
 
#include "sqlite-data-output.h"
 
#include "data-calculator.h"
#include "data-collector.h"
#include "sqlite-output.h"
 
#include "ns3/log.h"
#include "ns3/nstime.h"
 
#include <sstream>
 
namespace ns3
{
 
NS_LOG_COMPONENT_DEFINE("SqliteDataOutput");
 
SqliteDataOutput::SqliteDataOutput()
    : DataOutputInterface()
{
    NS_LOG_FUNCTION(this);
 
    m_filePrefix = "data";
}
 
SqliteDataOutput::~SqliteDataOutput()
{
    NS_LOG_FUNCTION(this);
}
 
/* static */
TypeId
SqliteDataOutput::GetTypeId()
{
    static TypeId tid = TypeId("ns3::SqliteDataOutput")
                            .SetParent<DataOutputInterface>()
                            .SetGroupName("Stats")
                            .AddConstructor<SqliteDataOutput>();
    return tid;
}
 
//----------------------------------------------
void
SqliteDataOutput::Output(DataCollector& dc)
{
    NS_LOG_FUNCTION(this << &dc);
 
    std::string m_dbFile = m_filePrefix + ".db";
    std::string run = dc.GetRunLabel();
    bool res;
 
    m_sqliteOut = new SQLiteOutput(m_dbFile);
 
    res = m_sqliteOut->SpinExec("CREATE TABLE IF NOT EXISTS Experiments (run, experiment, "
                                "strategy, input, description text)");
    NS_ASSERT(res);
 
    sqlite3_stmt* stmt;
    res = m_sqliteOut->WaitPrepare(&stmt,
                                   "INSERT INTO Experiments "
                                   "(run, experiment, strategy, input, description)"
                                   "values (?, ?, ?, ?, ?)");
    NS_ASSERT(res);
 
    // Create temporary strings to hold their value
    // throughout the lifetime of the Bind and Step
    // procedures
    //
    // DataCollector could return const std::string&,
    // but that could break the python bindings
    res = m_sqliteOut->Bind(stmt, 1, run);
    NS_ASSERT(res);
    std::string experimentLabel = dc.GetExperimentLabel();
    res = m_sqliteOut->Bind(stmt, 2, experimentLabel);
    NS_ASSERT(res);
    std::string strategyLabel = dc.GetStrategyLabel();
    res = m_sqliteOut->Bind(stmt, 3, strategyLabel);
    NS_ASSERT(res);
    std::string inputLabel = dc.GetInputLabel();
    res = m_sqliteOut->Bind(stmt, 4, inputLabel);
    NS_ASSERT(res);
    std::string description = dc.GetDescription();
    res = m_sqliteOut->Bind(stmt, 5, description);
    NS_ASSERT(res);
 
    res = m_sqliteOut->SpinStep(stmt);
    NS_ASSERT(res);
    res = m_sqliteOut->SpinFinalize(stmt);
    NS_ASSERT(res == 0);
 
    res = m_sqliteOut->WaitExec("CREATE TABLE IF NOT EXISTS "
                                "Metadata ( run text, key text, value)");
    NS_ASSERT(res);
 
    res = m_sqliteOut->WaitPrepare(&stmt,
                                   "INSERT INTO Metadata "
                                   "(run, key, value)"
                                   "values (?, ?, ?)");
    NS_ASSERT(res);
 
    for (auto i = dc.MetadataBegin(); i != dc.MetadataEnd(); i++)
    {
        std::pair<std::string, std::string> blob = (*i);
        m_sqliteOut->SpinReset(stmt);
        m_sqliteOut->Bind(stmt, 1, run);
        m_sqliteOut->Bind(stmt, 2, blob.first);
        m_sqliteOut->Bind(stmt, 3, blob.second);
        m_sqliteOut->SpinStep(stmt);
    }
 
    m_sqliteOut->SpinFinalize(stmt);
 
    m_sqliteOut->SpinExec("BEGIN");
    SqliteOutputCallback callback(m_sqliteOut, run);
    for (auto i = dc.DataCalculatorBegin(); i != dc.DataCalculatorEnd(); i++)
    {
        (*i)->Output(callback);
    }
    m_sqliteOut->SpinExec("COMMIT");
    // end SqliteDataOutput::Output
    m_sqliteOut->Unref();
}
 
SqliteDataOutput::SqliteOutputCallback::SqliteOutputCallback(const Ptr<SQLiteOutput>& db,
                                                             std::string run)
    : m_db(db),
      m_runLabel(run)
{
    NS_LOG_FUNCTION(this << db << run);
 
    m_db->WaitExec("CREATE TABLE IF NOT EXISTS Singletons "
                   "( run text, name text, variable text, value )");
 
    m_db->WaitPrepare(&m_insertSingletonStatement,
                      "INSERT INTO Singletons "
                      "(run, name, variable, value)"
                      "values (?, ?, ?, ?)");
    m_db->Bind(m_insertSingletonStatement, 1, m_runLabel);
}
 
SqliteDataOutput::SqliteOutputCallback::~SqliteOutputCallback()
{
    m_db->SpinFinalize(m_insertSingletonStatement);
}
 
void
SqliteDataOutput::SqliteOutputCallback::OutputStatistic(std::string key,
                                                        std::string variable,
                                                        const StatisticalSummary* statSum)
{
    NS_LOG_FUNCTION(this << key << variable << statSum);
 
    OutputSingleton(key, variable + "-count", static_cast<double>(statSum->getCount()));
    if (!std::isnan(statSum->getSum()))
    {
        OutputSingleton(key, variable + "-total", statSum->getSum());
    }
    if (!std::isnan(statSum->getMax()))
    {
        OutputSingleton(key, variable + "-max", statSum->getMax());
    }
    if (!std::isnan(statSum->getMin()))
    {
        OutputSingleton(key, variable + "-min", statSum->getMin());
    }
    if (!std::isnan(statSum->getSqrSum()))
    {
        OutputSingleton(key, variable + "-sqrsum", statSum->getSqrSum());
    }
    if (!std::isnan(statSum->getStddev()))
    {
        OutputSingleton(key, variable + "-stddev", statSum->getStddev());
    }
}
 
void
SqliteDataOutput::SqliteOutputCallback::OutputSingleton(std::string key,
                                                        std::string variable,
                                                        int val)
{
    NS_LOG_FUNCTION(this << key << variable << val);
 
    m_db->SpinReset(m_insertSingletonStatement);
    m_db->Bind(m_insertSingletonStatement, 2, key);
    m_db->Bind(m_insertSingletonStatement, 3, variable);
    m_db->Bind(m_insertSingletonStatement, 4, val);
    m_db->SpinStep(m_insertSingletonStatement);
}
 
void
SqliteDataOutput::SqliteOutputCallback::OutputSingleton(std::string key,
                                                        std::string variable,
                                                        uint32_t val)
{
    NS_LOG_FUNCTION(this << key << variable << val);
 
    m_db->SpinReset(m_insertSingletonStatement);
    m_db->Bind(m_insertSingletonStatement, 2, key);
    m_db->Bind(m_insertSingletonStatement, 3, variable);
    m_db->Bind(m_insertSingletonStatement, 4, val);
    m_db->SpinStep(m_insertSingletonStatement);
}
 
void
SqliteDataOutput::SqliteOutputCallback::OutputSingleton(std::string key,
                                                        std::string variable,
                                                        double val)
{
    NS_LOG_FUNCTION(this << key << variable << val);
 
    m_db->SpinReset(m_insertSingletonStatement);
    m_db->Bind(m_insertSingletonStatement, 2, key);
    m_db->Bind(m_insertSingletonStatement, 3, variable);
    m_db->Bind(m_insertSingletonStatement, 4, val);
    m_db->SpinStep(m_insertSingletonStatement);
}
 
void
SqliteDataOutput::SqliteOutputCallback::OutputSingleton(std::string key,
                                                        std::string variable,
                                                        std::string val)
{
    NS_LOG_FUNCTION(this << key << variable << val);
 
    m_db->SpinReset(m_insertSingletonStatement);
    m_db->Bind(m_insertSingletonStatement, 2, key);
    m_db->Bind(m_insertSingletonStatement, 3, variable);
    m_db->Bind(m_insertSingletonStatement, 4, val);
    m_db->SpinStep(m_insertSingletonStatement);
}
 
void
SqliteDataOutput::SqliteOutputCallback::OutputSingleton(std::string key,
                                                        std::string variable,
                                                        Time val)
{
    NS_LOG_FUNCTION(this << key << variable << val);
 
    m_db->SpinReset(m_insertSingletonStatement);
    m_db->Bind(m_insertSingletonStatement, 2, key);
    m_db->Bind(m_insertSingletonStatement, 3, variable);
    m_db->Bind(m_insertSingletonStatement, 4, val.GetTimeStep());
    m_db->SpinStep(m_insertSingletonStatement);
}
 
} // namespace ns3