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JobDistributionModel.cpp
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JobDistributionModel.cpp
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//File: JobDistributionModel.cpp
//Description:
#include "JobDistributionModel.hpp"
int JobDistributionModel::NextArrival = 0;
int JobDistributionModel::NextJobLength = 0;
int JobDistributionModel::NextVMSize = 0;
int JobDistributionModel::NextDataSize = 0;
JobArrivalDistributionFactory* JobDistributionModel::JobArrivalDistribution = NULL;
JobLengthDistributionFactory* JobDistributionModel::JobLengthDistribution = NULL;
JobVMSizeDistributionFactory* JobDistributionModel::JobVMSizeDistribution = NULL;
JobDataSizeDistributionFactory* JobDistributionModel::JobDataSizeDistribution = NULL;
void JobDistributionModel::Initialize()
{
*_log.trace << "Initializing JobDistributionModel - Job Arrival" << std::endl;
if (_configuration.JobArrival_Static)
{
JobArrivalDistribution = JobArrivalDistributionFactory::make_JobArrivalDistribution(Static);
JobArrivalDistribution->Initialize();
*_log.trace << " Static" << std::endl;
}
else if (_configuration.JobArrival_Poisson)
{
JobArrivalDistribution = JobArrivalDistributionFactory::make_JobArrivalDistribution(Poisson);
JobArrivalDistribution->Initialize();
*_log.trace << " Poisson" << std::endl;
}
*_log.trace << "Initializing JobDistributionModel - Job Length" << std::endl;
if (_configuration.JobLength_Static)
{
JobLengthDistribution = JobLengthDistributionFactory::make_JobLengthDistribution(Static);
JobLengthDistribution->Initialize();
*_log.trace << " Static" << std::endl;
}
else if (_configuration.JobLength_Normal)
{
JobLengthDistribution = JobLengthDistributionFactory::make_JobLengthDistribution(Normal);
JobLengthDistribution->Initialize();
*_log.trace << " Normal" << std::endl;
}
*_log.trace << "Initializing JobDistributionModel - VM Size" << std::endl;
if (_configuration.JobVMSize_Static)
{
JobVMSizeDistribution = JobVMSizeDistributionFactory::make_JobVMSizeDistribution(Static);
JobVMSizeDistribution->Initialize();
*_log.trace << " Static" << std::endl;
}
else if (_configuration.JobVMSize_Normal)
{
JobVMSizeDistribution = JobVMSizeDistributionFactory::make_JobVMSizeDistribution(Normal);
JobVMSizeDistribution->Initialize();
*_log.trace << " Normal" << std::endl;
}
*_log.trace << "Initializing JobDistributionModel - Data Size" << std::endl;
if (_configuration.JobDataSize_Static)
{
JobDataSizeDistribution = JobDataSizeDistributionFactory::make_JobDataSizeDistribution(Static);
JobDataSizeDistribution->Initialize();
*_log.trace << " Static" << std::endl;
}
else if (_configuration.JobDataSize_Normal)
{
JobDataSizeDistribution = JobDataSizeDistributionFactory::make_JobDataSizeDistribution(Normal);
JobDataSizeDistribution->Initialize();
*_log.trace << " Normal" << std::endl;
}
}
int JobDistributionModel::getNextArrival()
{
if (NextArrival == 0)
{
generateNext();
}
return NextArrival;
}
int JobDistributionModel::getNextVMSize()
{
if (NextArrival == 0)
{
generateNext();
}
return NextVMSize;
}
int JobDistributionModel::getNextDataSize()
{
if (NextArrival == 0)
{
generateNext();
}
return NextDataSize;
}
int JobDistributionModel::getNextJobLength()
{
if (NextArrival == 0)
{
generateNext();
}
return NextJobLength;
}
void JobDistributionModel::generateNext()
{
*_log.trace << "JobDistributionModel.generateNext()" << std::endl;
int offset = JobArrivalDistribution->getNext();
NextArrival = NextArrival + offset;
NextJobLength = JobLengthDistribution->getNext();
NextVMSize = JobVMSizeDistribution->getNext();
NextDataSize = JobDataSizeDistribution->getNext();
}