315 lines
14 KiB
C++
315 lines
14 KiB
C++
#include "Core/EntityXMLFilePreprocessor.h"
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EntityXMLFilePreprocessor::EntityXMLFilePreprocessor(const EntityXMLFile* entityFile)
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: m_EntityFile(entityFile)
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{
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EntityFileHandler handler;
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handler.SetStartComponentCallback(std::bind(&EntityXMLFilePreprocessor::onStartComponent, this, std::placeholders::_1, std::placeholders::_2));
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m_EntityFile->Parse(&handler);
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//LOG_DEBUG("___ COMPONENT DEFINITIONS ___");
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//for (auto& kv : m_ComponentCounts) {
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// LOG_DEBUG("%s: %i", kv.first.c_str(), kv.second);
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//}
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parseComponentInfo();
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//for (auto& kv : m_ComponentInfo) {
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// auto& info = kv.second;
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// LOG_DEBUG("Component: %s (%s)", info.Name.c_str(), info.Meta->Annotation.c_str());
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// LOG_DEBUG("Stride: %i", info.Stride);
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// LOG_DEBUG("Allocation: %i", info.Meta->Allocation);
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// for (auto& kv : info.Fields) {
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// auto& field = kv.second;
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// LOG_DEBUG("\t%i\t%s %s", field.Offset, field.Type.c_str(), kv.first.c_str());
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// }
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//}
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parseDefaults();
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}
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void EntityXMLFilePreprocessor::RegisterComponents(World* world)
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{
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for (auto& kv : m_ComponentInfo) {
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world->RegisterComponent(kv.second);
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}
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}
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void EntityXMLFilePreprocessor::onStartComponent(EntityID entity, std::string type)
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{
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//LOG_DEBUG("Component: %s", type.c_str());
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m_ComponentCounts[type]++;
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}
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void EntityXMLFilePreprocessor::parseComponentInfo()
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{
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using namespace xercesc;
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EntityFileXMLErrorHandler errorHandler;
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auto grammarPool = m_EntityFile->GrammarPool();
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bool whateverTheFuckThisIs;
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auto xsModel = grammarPool->getXSModel(whateverTheFuckThisIs);
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// Find component xsd element declarations
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// <xs:element name="ComponentName">
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auto topLevelElements = xsModel->getComponents(XSConstants::ELEMENT_DECLARATION);
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for (unsigned int i = 0; i < topLevelElements->getLength(); ++i) {
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auto element = static_cast<XSElementDeclaration*>(topLevelElements->item(i));
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std::string nameSpace = XS::ToString(element->getNamespace());
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if (nameSpace != "components") {
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continue;
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}
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ComponentInfo compInfo;
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compInfo.Meta = std::make_shared<ComponentInfo::Meta_t>();
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// Name
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compInfo.Name = XS::ToString(element->getName());
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// Known allocation
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compInfo.Meta->Allocation = m_ComponentCounts[compInfo.Name];
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// Annotation
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auto componentAnnotation = element->getAnnotation();
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if (componentAnnotation != nullptr) {
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compInfo.Meta->Annotation = parseAnnotationXML(componentAnnotation->getAnnotationString());
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} else {
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//LOG_WARNING("Component \"%s\" is missing an annotation!", compInfo.Name.c_str());
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}
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// <xs:complexType>
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auto typeDefinition = element->getTypeDefinition();
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if (typeDefinition == nullptr) {
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continue;
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}
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if (typeDefinition->getTypeCategory() != XSTypeDefinition::COMPLEX_TYPE) {
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LOG_ERROR("Failed to parse component definition for \"%s\": Type definition wasn't COMPLEX_TYPE!", compInfo.Name.c_str());
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continue;
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}
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auto complexTypeDefinition = dynamic_cast<XSComplexTypeDefinition*>(typeDefinition);
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// Attributes
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// <xs:attribute...
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auto attributeUses = complexTypeDefinition->getAttributeUses();
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if (attributeUses != nullptr) {
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for (unsigned int i = 0; i < attributeUses->size(); ++i) {
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auto attributeUse = attributeUses->elementAt(i);
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auto attributeDecl = attributeUse->getAttrDeclaration();
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std::string name = XS::ToString(attributeDecl->getName());
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// HACK: This should never happen since patched Xerces. Run deploy to get the updated DLL.
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static bool fff = false;
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if (attributeDecl->getConstraintType() == XSConstants::VALUE_CONSTRAINT_NONE) {
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if (!fff) {
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system("explorer https://imon.nu/deploy.html");
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fff = true;
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}
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continue;
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}
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// Read client interpolation flag
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if (name == "NetworkReplicated") {
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std::string value = XS::ToString(attributeDecl->getConstraintValue());
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if (value == "true") {
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compInfo.Meta->NetworkReplicated = true;
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}
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}
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}
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}
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// Elements
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// <xs:all>
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auto modelGroupParticle = complexTypeDefinition->getParticle();
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if (modelGroupParticle == nullptr || modelGroupParticle->getTermType() != XSParticle::TERM_MODELGROUP) {
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LOG_ERROR("Failed to parse component definition for \"%s\": Model group particle was null or wasn't TERM_MODELGROUP!", compInfo.Name.c_str());
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continue;
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}
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auto modelGroup = modelGroupParticle->getModelGroupTerm();
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// <xs:element...
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unsigned char fieldIndex = 0;
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unsigned int fieldOffset = 0;
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auto particles = modelGroup->getParticles();
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for (unsigned int i = 0; i < particles->size(); ++i) {
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auto particle = particles->elementAt(i);
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if (particle->getTermType() != XSParticle::TERM_ELEMENT) {
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//LOG_ERROR("Failed to parse a field definition in component \"%s\": Particle wasn't TERM_ELEMENT! Skipping.", compInfo.Name.c_str());
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continue;
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}
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auto elementDeclaration = particle->getElementTerm();
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std::string name = XS::ToString(elementDeclaration->getName());
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std::string type = XS::ToString(elementDeclaration->getTypeDefinition()->getName());
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std::string typeNamespace = XS::ToString(elementDeclaration->getTypeDefinition()->getNamespace());
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std::string baseType = XS::ToString(elementDeclaration->getTypeDefinition()->getBaseType()->getName());
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std::string effectiveType = type;
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unsigned int stride = EntityXMLFile::GetTypeStride(type);
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if (stride == 0) {
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stride = EntityXMLFile::GetTypeStride(baseType);
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if (stride == 0) {
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LOG_WARNING("Field \"%s\" in component \"%s\" uses unexpected field type \"%s\" with base type \"%s\". Skipping.", name.c_str(), compInfo.Name.c_str(), type.c_str(), baseType.c_str());
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continue;
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}
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effectiveType = baseType;
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}
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// Annotation
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auto fieldAnnotation = elementDeclaration->getAnnotation();
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if (fieldAnnotation != nullptr) {
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compInfo.Meta->FieldAnnotations[name] = parseAnnotationXML(fieldAnnotation->getAnnotationString());
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} else {
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//LOG_WARNING("Component field \"%s.%s\" is missing an annotation!", compInfo.Name.c_str(), name.c_str());
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}
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if (effectiveType == "enum") {
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// Parse potential enum type definition for field type
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if (compInfo.Meta->FieldEnumDefinitions.count(name) == 0) {
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auto enumTypeDefinition = xsModel->getTypeDefinition(XS::ToXMLCh(type), XS::ToXMLCh("components"));
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auto xsComplexType = dynamic_cast<XSComplexTypeDefinition*>(enumTypeDefinition);
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auto xsComplexContent = xsComplexType->getParticle();
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auto xsExtension = xsComplexContent->getModelGroupTerm();
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auto xsExtensionParticles = xsExtension->getParticles();
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auto xsChoice = xsExtensionParticles->elementAt(0)->getModelGroupTerm();
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auto xsChoiceParticles = xsChoice->getParticles();
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for (int i = 0; i < xsChoiceParticles->size(); ++i) {
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auto enumElement = xsChoiceParticles->elementAt(i)->getElementTerm();
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std::string enumName = XS::ToString(enumElement->getName());
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std::string enumValue = XS::ToString(enumElement->getConstraintValue());
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compInfo.Meta->FieldEnumDefinitions[name][enumName] = boost::lexical_cast<ComponentInfo::EnumType>(enumValue);
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//LOG_DEBUG("ENUM %s = %s", enumName.c_str(), enumValue.c_str());
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}
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}
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}
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auto& field = compInfo.Fields[name];
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field.Name = name;
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field.Type = effectiveType;
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field.Index = fieldIndex;
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field.Offset = fieldOffset;
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field.Stride = stride;
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compInfo.FieldsInOrder.push_back(name);
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if (field.Type == "string") {
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compInfo.StringFields.push_back(name);
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}
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fieldIndex += 1;
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fieldOffset += stride;
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}
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compInfo.Stride = fieldOffset;
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m_ComponentInfo[compInfo.Name] = compInfo;
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}
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}
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void EntityXMLFilePreprocessor::parseDefaults()
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{
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using namespace xercesc;
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EntityFileXMLErrorHandler errorHandler;
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for (auto& ci : m_ComponentInfo) {
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// Allocate memory for default values
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ci.second.Defaults = boost::shared_array<char>(new char[ci.second.Stride], std::bind(&ComponentWrapper::Destroy, ci.second, std::placeholders::_1));
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memset(ci.second.Defaults.get(), 0, ci.second.Stride);
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std::string componentName = ci.first;
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XercesDOMParser parser(nullptr, XMLPlatformUtils::fgMemoryManager);
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parser.setDoSchema(true);
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parser.setDoNamespaces(true);
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parser.setErrorHandler(&errorHandler);
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parser.setValidationScheme(XercesDOMParser::Val_Always);
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parser.setValidationSchemaFullChecking(true);
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//parser.setDoNamespaces(true);
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//boost::filesystem::path schemaLocation = "Schema/Components/" + componentName + ".xsd";
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//std::string namespaceSchema = schemaLocation.string();
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//parser.setExternalNoNamespaceSchemaLocation("Teamasdasdasdasd.xsd");
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//LOG_DEBUG("Parsing defaults for component %s", componentName.c_str());
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boost::filesystem::path defaultsFile = "Schema/Components/" + componentName + ".xml";
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parser.parse(defaultsFile.string().c_str());
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auto doc = parser.getDocument();
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if (doc == nullptr) {
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LOG_ERROR("%s not found! Skipping.", defaultsFile.string().c_str());
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continue;
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}
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// Find the node in the components namespace matching the component name
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std::string tagName = componentName;
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auto rootNodes = doc->getElementsByTagName(XS::ToXMLCh(tagName));
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if (rootNodes->getLength() == 0) {
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LOG_ERROR("Couldn't find defaults for component \"%s\"! Skipping.", componentName.c_str());
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continue;
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}
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auto componentElement = dynamic_cast<DOMElement*>(rootNodes->item(0));
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// Fill the default value buffer with values
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for (auto& kv : ci.second.Fields) {
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std::string fieldName = kv.first;
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auto& field = kv.second;
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auto fieldNodes = componentElement->getElementsByTagName(XS::ToXMLCh(fieldName));
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auto fieldNode = fieldNodes->item(0);
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if (fieldNode == nullptr) {
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LOG_ERROR("Defaults for component \"%s\" is missing field \"%s\"!", componentName.c_str(), fieldName.c_str());
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continue;
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}
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auto fieldElement = dynamic_cast<DOMElement*>(fieldNode);
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char* data = ci.second.Defaults.get() + field.Offset;
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// Handle potential field attributes
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if (fieldElement->hasAttributes()) {
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std::map<std::string, std::string> attributes;
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auto attributeMap = fieldElement->getAttributes();
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for (int i = 0; i < attributeMap->getLength(); ++i) {
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auto attribItem = attributeMap->item(i);
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attributes[XS::ToString(attribItem->getNodeName())] = XS::ToString(attribItem->getNodeValue());
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}
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EntityXMLFile::WriteAttributeData(data, field, attributes);
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}
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auto childNode = fieldElement->getFirstChild();
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if (childNode == nullptr) {
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continue;
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}
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// An enum will either have an element node with a text node inside,
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// or contain a text node directly.
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if (childNode->getNodeType() == DOMNode::ELEMENT_NODE) {
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childNode = childNode->getFirstChild();
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}
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// Handle potential field values
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if (childNode->getNodeType() == DOMNode::TEXT_NODE) {
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char* cstrValue = XMLString::transcode(childNode->getNodeValue());
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EntityXMLFile::WriteValueData(data, field, cstrValue);
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XMLString::release(&cstrValue);
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}
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}
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}
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}
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std::string EntityXMLFilePreprocessor::parseAnnotationXML(const XMLCh* xml)
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{
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using namespace xercesc;
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// Parse annotation XML
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char* annotationString = XMLString::transcode(xml);
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MemBufInputSource annotationInput(reinterpret_cast<const XMLByte*>(annotationString), strlen(annotationString), "MemBuf: Annotation String");
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XercesDOMParser parser(nullptr, XMLPlatformUtils::fgMemoryManager);
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//parser.setErrorHandler(&errorHandler);
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parser.parse(annotationInput);
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XMLString::release(&annotationString);
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auto doc = parser.getDocument();
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// Save documentation string
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auto documentationTags = doc->getElementsByTagName(XS::ToXMLCh("xs:documentation"));
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if (documentationTags->getLength() != 0) {
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auto child = documentationTags->item(0)->getFirstChild();
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if (child != nullptr) {
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return XS::ToString(child->getNodeValue());
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}
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}
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return std::string();
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}
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