/*!
* \brief Read an individual bag from a XML file.
* \param inFileName Filename to read individual bag from.
* \param ioSystem Evolutionary system used to read individual.
* \param inBagTag Name of the XML tag containing the list of individuals to read.
* \return True if an individual of the given name was found and read from file.
* false if nothing was found.
*/
bool IndividualBag::readFromFile(std::string inFileName,
System& ioSystem,
std::string inBagTag)
{
Beagle_StackTraceBeginM();
std::ifstream lIFS(inFileName.c_str());
PACC::XML::Document lParser(lIFS, inFileName);
lIFS.close();
PACC::XML::ConstFinder lBagFinder(lParser.getFirstDataTag());
PACC::XML::ConstIterator lIndivTag = lBagFinder.find(std::string("//IndividualBag")+inBagTag);
if(!lIndivTag) return false;
Context::Alloc::Handle lContextAlloc =
castHandleT<Context::Alloc>(ioSystem.getFactory().getConceptAllocator("Concept"));
Context::Handle lContext =
castHandleT<Context>(lContextAlloc->allocate());
lContext->setSystemHandle(&ioSystem);
Beagle_LogInfoM(
ioSystem.getLogger(),
std::string("Reading an individual bag from file '")+inFileName+
std::string("' that is in-between the XML tags '")+inBagTag+std::string("'")
);
readIndividuals(lIndivTag, *lContext);
return true;
Beagle_StackTraceEndM();
}
/*!
* \brief Read individual from a XML file. If several individuals are in file, read
* first tagged occurence of individual.
* \param inFileName Filename to read individual from.
* \param ioSystem Evolutionary system to read individual.
* \return True if an individual was found and read from file, false if nothing was found.
*/
bool Individual::readFromFile(std::string inFileName, System& ioSystem)
{
Beagle_StackTraceBeginM();
std::ifstream lIFS(inFileName.c_str());
PACC::XML::Document lParser(lIFS, inFileName);
lIFS.close();
PACC::XML::ConstFinder lIndivFinder(lParser.getFirstDataTag());
PACC::XML::ConstIterator lIndivTag = lIndivFinder.find("//Individual");
if(!lIndivTag) return false;
Context::Alloc::Handle lContextAlloc =
castHandleT<Context::Alloc>(ioSystem.getFactory().getConceptAllocator("Context"));
Context::Handle lContext = castHandleT<Context>(lContextAlloc->allocate());
lContext->setSystemHandle(&ioSystem);
lContext->setIndividualHandle(this);
lContext->setIndividualIndex(0);
readWithContext(lIndivTag, *lContext);
return true;
Beagle_StackTraceEndM();
}
/*!
* \brief Test the fitness of a given individual.
* \param inIndividual Handle to the individual to test.
* \param ioSystem Handle to the system to use to test the individual.
* \par Note:
* This method is provided as a mean to test some individuals after an evolution.
*/
Fitness::Handle Beagle::MPI::EvaluationOp::test(Individual::Handle inIndividual, System::Handle ioSystem)
{
Beagle_LogInfoM(
ioSystem->getLogger(),
"evaluation", "Beagle::MPIEvaluationOp",
std::string("Testing the following individual: ")+inIndividual->serialize()
);
Context::Alloc::Handle lContextAlloc =
castHandleT<Context::Alloc>(ioSystem->getContextAllocatorHandle());
Context::Handle lContext = castHandleT<Context>(lContextAlloc->allocate());
lContext->setSystemHandle(ioSystem);
lContext->setIndividualHandle(inIndividual);
Fitness::Handle lFitness = evaluate(*inIndividual, *lContext);
Beagle_LogInfoM(
ioSystem->getLogger(),
"evaluation", "Beagle::MPIEvaluationOp",
std::string("New fitness of the individual: ")+lFitness->serialize()
);
return lFitness;
}