C++ Context::getGenotypeIndex方法代码示例

void TreeSTag::readWithContext(PACC::XML::ConstIterator inIter, Beagle::Context& ioContext){
	Beagle_StackTraceBeginM();
	GP::Context& lGPContext = castObjectT<GP::Context&>(ioContext);
	
	if((inIter->getType()!=PACC::XML::eData) || (inIter->getValue()!="Genotype"))
		throw Beagle_IOExceptionNodeM(*inIter, "tag <Genotype> expected!");
	
	std::string lType = inIter->getAttribute("type").c_str();
	if(lType.empty())
		throw Beagle_IOExceptionNodeM(*inIter, "GP tree type of the genotype is not present!");
	if(lType != "gptreetag")
		throw Beagle_IOExceptionNodeM(*inIter, std::string("type of genotype mismatch, expected ")
									  +std::string("\"gptreetag\" but read \"")+lType+std::string("\" instead!"));
	
	//Get structure id
	std::string lStructureID = inIter->getAttribute("structureid").c_str();
	mStructureID = str2uint(lStructureID);
	
	// Get primitive set index
	std::string lPrimitiveSetIndexText = inIter->getAttribute("primitiveSetIndex").c_str();
	if(lPrimitiveSetIndexText.empty()) {
		// No primitive set index was specified.  This must be an old
		// tree.  Assume index is equal to tree's index
		unsigned int lGenotypeIndex = ioContext.getGenotypeIndex();
		if(lGenotypeIndex >= lGPContext.getSystem().getPrimitiveSuperSet().size()) {
			throw Beagle_RunTimeExceptionM(std::string("In GP::Tree::readWithContext(): The ")+
										   std::string("'primitiveSetIndex' attribute was missing from an individual's genotype. ")+
										   std::string("It would normally be assumed that such a tree was to be mapped to the ")+
										   std::string("primitive set of the same index as the genotype. In this case that would ")+
										   std::string("result in an incorrect mapping because there are not enough primitive sets ")+
										   std::string("in the System. Perhaps this individual was not intended to be read with the ")+
										   std::string("current set of primitive sets?"));
		}
		setPrimitiveSetIndex(lGenotypeIndex);
	}
	else {
		// primitiveSetIndex is a valid attribute.
		unsigned int lPrimitiveSetIndex = str2uint(lPrimitiveSetIndexText);
		if(lPrimitiveSetIndex >= lGPContext.getSystem().getPrimitiveSuperSet().size()) {
			std::string lMessage = std::string("In GP::Tree::readWithContext(): The 'primitiveSetIndex' ")+
			std::string("attribute contained the value '") + lPrimitiveSetIndexText + 
			std::string("' which was read as the number '") + uint2str(lPrimitiveSetIndex) + 
			std::string("'. This value is incorrect as there are not enough primitive sets in the ")+
			std::string("System. Perhaps this individual was not intended to be read with the current ")+
			std::string("set of primitive sets?");
			throw Beagle_RunTimeExceptionM(lMessage);
		}
		setPrimitiveSetIndex(lPrimitiveSetIndex);
	}
	
	// Get numberArguments attribute
	std::string lNumberArgumentsText = inIter->getAttribute("numberArguments").c_str();
	if(lNumberArgumentsText.empty()) {
		// numberArguments attribute wasn't defined.  This must be an old
		// tree.  Assume the number of arguments is zero.
		setNumberArguments(0);
	}
	else {
		// numberArguments is a valid attribute.
		setNumberArguments(str2uint(lNumberArgumentsText));
	}
	
	// Get size attribute and reserve size accordingly
	std::string lSizeText = inIter->getAttribute("size").c_str();
	if(lSizeText.empty()==false) reserve(str2uint(lSizeText));
	
	PACC::XML::ConstIterator lChild = inIter->getFirstChild();
	if((!lChild) || (lChild->getType()!=PACC::XML::eData))
		throw Beagle_IOExceptionNodeM(*lChild, "expected a XML tag for the GP tree!");
	
	clear();
	readSubTree(lChild, lGPContext);
	
	//Read BondGraph if any
	const PACC::XML::Node* lParent = inIter->getParent();
	
	PACC::XML::ConstFinder lIndivFinder = PACC::XML::ConstIterator(lParent);
	PACC::XML::ConstIterator lBGTag = lIndivFinder.find("//BondGraph");
	if(!lBGTag) { 
		return;
	}
	
//	mBondGraph = new GrowingHybridBondGraph;
//	mBondGraph->read(lBGTag);	
	
	Beagle_StackTraceEndM("void GP::Tree::readWithContext(PACC::XML::ConstIterator inIter, Beagle::Context& ioContext)");
}

bool Beagle::GP::MutationEphemeralOpT<T>::mutate(Beagle::Individual& ioIndividual,
        Beagle::Context& ioContext)
{
	Beagle_StackTraceBeginM();
	Beagle_LogDetailedM(
	    ioContext.getSystem().getLogger(),
	    "mutation", "Beagle::GP::MutationEphemeralOpT",
	    std::string("Mutating ")+uint2ordinal(ioContext.getGenotypeIndex()+1)+
	    std::string(" individual with GP::MutationEphemeralOpT")
	);

	GP::Individual& lIndividual = castObjectT<GP::Individual&>(ioIndividual);
	GP::Context& lContext = castObjectT<GP::Context&>(ioContext);

	// Get index of potential primitives with parameters that can be selected for mutation.
	std::vector< std::pair<unsigned int,unsigned int> > lPotentialParam;
	for(unsigned int i=0; i<lIndividual.size(); ++i) {
		GP::Tree& lTree = *lIndividual[i];
		for(unsigned int j=0; j<lTree.size(); ++j) {
			if(lTree[j].mPrimitive->getName() == *mEphemeralName) {
				lPotentialParam.push_back(std::make_pair(i,j));
			}
		}
	}

	// Return if there is not potential parameters.
	if(lPotentialParam.empty()) return false;

	// Mutating a primitive
	Beagle_LogDebugM(
	    ioContext.getSystem().getLogger(),
	    "mutation",
	    "Beagle::GP::MutationEphemeralOpT",
	    "Individual before GP parameters mutation"
	);
	Beagle_LogObjectDebugM(
	    ioContext.getSystem().getLogger(),
	    "mutation",
	    "Beagle::GP::MutationEphemeralOpT",
	    ioIndividual
	);

	// Store original context values
	unsigned int lOldGenotypeIndex = lContext.getGenotypeIndex();
	GP::Tree::Handle lOldGenotypeHandle = lContext.getGenotypeHandle();

	// Get reference to primitive to mutate and other objects.
	const unsigned int lSelectedParam =
	    lContext.getSystem().getRandomizer().rollInteger(0,lPotentialParam.size()-1);
	GP::Tree::Handle lSelectedTree = lIndividual[lPotentialParam[lSelectedParam].first];
	lContext.setGenotypeIndex(lPotentialParam[lSelectedParam].first);
	lContext.setGenotypeHandle(lSelectedTree);
	Beagle_LogVerboseM(
	    ioContext.getSystem().getLogger(),
	    "mutation", "Beagle::GP::MutationEphemeralOpT",
	    std::string("Mutating the parameter of the ")+
	    uint2ordinal(lPotentialParam[lSelectedParam].second+1)+
	    std::string(" node in the ")+uint2ordinal(lPotentialParam[lSelectedParam].first+1)+
	    std::string(" tree")
	);

	// Mutate parameter value.
	GP::Primitive::Handle lSelectedPrimit =
	    (*lSelectedTree)[lPotentialParam[lSelectedParam].second].mPrimitive;
	typename GP::EphemeralT<T>::Handle lSelectedEphemeral =
	    castHandleT<typename GP::EphemeralT<T> >(lSelectedPrimit);
	GP::Primitive::Handle lGeneratedPrimit =
	    lSelectedEphemeral->generate(mEphemeralName->getWrappedValue(), lContext);
	(*lSelectedTree)[lPotentialParam[lSelectedParam].second].mPrimitive = lGeneratedPrimit;

	Beagle_LogVerboseM(
	    ioContext.getSystem().getLogger(),
	    "mutation", "Beagle::GP::MutationEphemeralOpT",
	    std::string("Changing the ephemeral from ")+lSelectedPrimit->serialize()+
	    std::string(" to ")+lGeneratedPrimit->serialize()
	);

	// Restore original context values
	lContext.setGenotypeIndex(lOldGenotypeIndex);
	lContext.setGenotypeHandle(lOldGenotypeHandle);

	Beagle_LogDebugM(
	    ioContext.getSystem().getLogger(),
	    "mutation",
	    "Beagle::GP::MutationEphemeralOpT",
	    "Individual after GP parameters mutation"
	);
	Beagle_LogObjectDebugM(
	    ioContext.getSystem().getLogger(),
	    "mutation",
	    "Beagle::GP::MutationEphemeralOpT",
	    ioIndividual
	);

	return true;
	Beagle_StackTraceEndM("bool GP::MutationEphemeralOpT<T>::mutate(Individual& ioIndividual, Context& ioContext)");
}