ParameterCollection.cpp

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#include <cassert>
#include <cmath>
#include <iostream>
#include <fstream>
#include "PetscTools.hpp"

#include "ParameterCollection.hpp"

boost::shared_ptr<ParameterCollection> ParameterCollection::mpInstance = boost::shared_ptr<ParameterCollection>();

ParameterCollection* ParameterCollection::Instance()
{
    if (!mpInstance)
    {
        mpInstance = boost::shared_ptr<ParameterCollection>(new ParameterCollection);
        std::atexit(Destroy);
    }
    return mpInstance.get();
}

boost::shared_ptr<ParameterCollection> ParameterCollection::SharedInstance()
{
    if (!mpInstance)
    {
        mpInstance = boost::shared_ptr<ParameterCollection>(new ParameterCollection);
        std::atexit(Destroy);
    }
    return mpInstance;
}

ParameterCollection::ParameterCollection()
    : mParameters()
{
    // Make sure there's only one instance - enforces correct serialization
    assert(!mpInstance);

}

void ParameterCollection::DumpToFile(const std::string& rFilename)
{
    if(PetscTools::AmMaster())
    {
        std::ofstream myfile;
        myfile.open(rFilename.c_str());
        myfile << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl;
        myfile << "<parameter_collection>" << std::endl;

        typedef std::map<std::string, std::pair<std::string, boost::shared_ptr<BaseParameterInstance> > >::iterator it_type;
        for(it_type iterator = mParameters.begin(); iterator != mParameters.end(); iterator++)
        {
            myfile << "<parameter>" << std::endl;
            myfile << "<added_by>" << (iterator->second).first << "</added_by>"<< std::endl;
            myfile << (iterator->second).second;
            myfile << "</parameter>" << std::endl;
        }
        myfile << "</parameter_collection>" << std::endl;
        myfile.close();
    }
}

boost::shared_ptr<BaseParameterInstance> ParameterCollection::GetParameter(const std::string& rName)
{
    return mParameters[rName].second;
}

void ParameterCollection::AddParameter(boost::shared_ptr<BaseParameterInstance> pParameter, const std::string& rFirstInstantiated)
{
    // Check if the parameter already exists in the map
    std::map<std::string, std::pair<std::string, boost::shared_ptr<BaseParameterInstance> > >::iterator it = mParameters.find(pParameter->GetName());
    if(it != mParameters.end() && rFirstInstantiated != it->first)
    {
        it->second = std::pair<std::string, boost::shared_ptr<BaseParameterInstance> >(rFirstInstantiated, pParameter);
    }
    else
    {
        mParameters[pParameter->GetName()] = std::pair<std::string, boost::shared_ptr<BaseParameterInstance> >(rFirstInstantiated, pParameter);
    }
}

void ParameterCollection::Destroy()
{
    if (mpInstance)
    {
        mpInstance = boost::shared_ptr<ParameterCollection>();
    }
}