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Copy pathschemaModule.cc
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317 lines (273 loc) · 9.73 KB
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#include "clstepcore/schemaModule.h"
#include <cassert>
#include <unordered_map>
#include "clstepcore/attrDescriptor.h"
#include "clstepcore/aggrTypeDescriptor.h"
#include "clstepcore/derivedAttribute.h"
#include "clstepcore/dictSchema.h"
#include "clstepcore/entityDescriptor.h"
#include "clstepcore/enumTypeDescriptor.h"
#include "clstepcore/inverseAttribute.h"
#include "clstepcore/selectTypeDescriptor.h"
#include "clstepcore/typeDescriptor.h"
namespace {
struct PendingSchemaModule {
std::vector<const EntityDescriptor *> entities;
std::vector<const TypeDescriptor *> types;
std::vector<const AttrDescriptor *> attributes;
};
class PendingSchemaModules {
typedef std::unordered_map<const Schema *, PendingSchemaModule> ModuleMap;
ModuleMap _modules;
const Schema * _lastSchema;
PendingSchemaModule * _lastModule;
PendingSchemaModule * Find( Schema & schema ) {
if( _lastSchema == &schema ) {
return _lastModule;
}
ModuleMap::iterator i = _modules.find( &schema );
_lastSchema = &schema;
_lastModule = i == _modules.end() ? 0 : &i->second;
return _lastModule;
}
public:
PendingSchemaModules() : _lastSchema( 0 ), _lastModule( 0 ) {
}
void Begin( Schema & schema ) {
PendingSchemaModule & module = _modules[&schema];
module.entities.clear();
module.types.clear();
module.attributes.clear();
_lastSchema = &schema;
_lastModule = &module;
}
void RecordEntity( Schema & schema, const EntityDescriptor * entity ) {
PendingSchemaModule * module = Find( schema );
if( module ) {
module->entities.push_back( entity );
}
}
void RecordType( Schema & schema, const TypeDescriptor * type ) {
PendingSchemaModule * module = Find( schema );
if( module ) {
module->types.push_back( type );
}
}
void RecordAttribute( Schema & schema, const AttrDescriptor * attribute ) {
PendingSchemaModule * module = Find( schema );
if( module ) {
module->attributes.push_back( attribute );
}
}
bool Consume( Schema & schema, PendingSchemaModule & module ) {
ModuleMap::iterator i = _modules.find( &schema );
if( i == _modules.end() ) {
return false;
}
module.entities.swap( i->second.entities );
module.types.swap( i->second.types );
module.attributes.swap( i->second.attributes );
if( _lastSchema == &schema ) {
_lastSchema = 0;
_lastModule = 0;
}
_modules.erase( i );
return true;
}
};
PendingSchemaModules & pendingSchemaModules() {
static PendingSchemaModules modules;
return modules;
}
const TypeDescriptor * typeFromSlot( const SchemaModuleSlot & record ) {
switch( record.kind ) {
case SchemaModuleSlot_EnumType:
return *static_cast<EnumTypeDescriptor * const *>( record.slot );
case SchemaModuleSlot_SelectType:
return *static_cast<SelectTypeDescriptor * const *>( record.slot );
case SchemaModuleSlot_AggregateType:
return *static_cast<AggrTypeDescriptor * const *>( record.slot );
case SchemaModuleSlot_ArrayType:
return *static_cast<ArrayTypeDescriptor * const *>( record.slot );
case SchemaModuleSlot_ListType:
return *static_cast<ListTypeDescriptor * const *>( record.slot );
case SchemaModuleSlot_SetType:
return *static_cast<SetTypeDescriptor * const *>( record.slot );
case SchemaModuleSlot_BagType:
return *static_cast<BagTypeDescriptor * const *>( record.slot );
case SchemaModuleSlot_Type:
default:
return *static_cast<TypeDescriptor * const *>( record.slot );
}
}
const AttrDescriptor * attributeFromSlot( const SchemaModuleSlot & record ) {
switch( record.kind ) {
case SchemaModuleSlot_DerivedAttribute:
return *static_cast<Derived_attribute * const *>( record.slot );
case SchemaModuleSlot_InverseAttribute:
return *static_cast<Inverse_attribute * const *>( record.slot );
case SchemaModuleSlot_Attribute:
default:
return *static_cast<AttrDescriptor * const *>( record.slot );
}
}
void prepareLateBoundLayouts(
const std::vector<const EntityDescriptor *> & entities ) {
for( size_t i = 0; i < entities.size(); ++i ) {
if( entities[i] && !entities[i]->NewSTEPentity ) {
entities[i]->PrepareLateBoundLayout();
}
}
}
}
class SchemaLoadContext::Impl {
public:
typedef std::unordered_map<const Schema *, PendingSchemaModule> ModuleMap;
ModuleMap modules;
};
SchemaLoadContext::SchemaLoadContext() : _impl( new Impl ) {
}
SchemaLoadContext::~SchemaLoadContext() {
delete _impl;
}
void SchemaLoadContext::Begin( Schema & schema ) {
PendingSchemaModule & module = _impl->modules[&schema];
module.entities.clear();
module.types.clear();
module.attributes.clear();
}
void SchemaLoadContext::RecordEntity(
Schema & schema, const EntityDescriptor * entity ) {
_impl->modules[&schema].entities.push_back( entity );
}
void SchemaLoadContext::RecordType(
Schema & schema, const TypeDescriptor * type ) {
_impl->modules[&schema].types.push_back( type );
}
void SchemaLoadContext::RecordAttribute(
Schema & schema, const AttrDescriptor * attribute ) {
_impl->modules[&schema].attributes.push_back( attribute );
}
void BeginSchemaModuleImage( Schema & schema ) {
pendingSchemaModules().Begin( schema );
}
void RecordSchemaModuleEntity( Schema & schema,
const EntityDescriptor * entity ) {
pendingSchemaModules().RecordEntity( schema, entity );
}
void RecordSchemaModuleType( Schema & schema, const TypeDescriptor * type ) {
pendingSchemaModules().RecordType( schema, type );
}
void RecordSchemaModuleAttribute( Schema & schema,
const AttrDescriptor * attribute ) {
pendingSchemaModules().RecordAttribute( schema, attribute );
}
SchemaModule::SchemaModule() : _schema( 0 ), _fingerprint( 0 ) {
}
SchemaModule::~SchemaModule() {
}
void SchemaModule::Initialize(
Schema & schema,
const EntityDescriptor * const * entities, size_t entityCount,
const TypeDescriptor * const * types, size_t typeCount,
const AttrDescriptor * const * attributes, size_t attributeCount ) {
_schema = &schema;
_fingerprint = 0;
_entities.assign( entities, entities + entityCount );
_types.assign( types, types + typeCount );
_attributes.assign( attributes, attributes + attributeCount );
prepareLateBoundLayouts( _entities );
}
void SchemaModule::InitializeFromSlots(
Schema & schema,
const SchemaModuleSlot * entities, size_t entityCount,
const SchemaModuleSlot * types, size_t typeCount,
const SchemaModuleSlot * attributes, size_t attributeCount ) {
_schema = &schema;
_fingerprint = 0;
_entities.clear();
_entities.reserve( entityCount );
for( size_t i = 0; i < entityCount; ++i ) {
_entities.push_back(
*static_cast<EntityDescriptor * const *>( entities[i].slot ) );
}
_types.clear();
_types.reserve( typeCount );
for( size_t i = 0; i < typeCount; ++i ) {
_types.push_back( typeFromSlot( types[i] ) );
}
_attributes.clear();
_attributes.reserve( attributeCount );
for( size_t i = 0; i < attributeCount; ++i ) {
_attributes.push_back( attributeFromSlot( attributes[i] ) );
}
prepareLateBoundLayouts( _entities );
}
void SchemaModule::InitializeFromImage( Schema & schema,
const SchemaModuleImage & image ) {
PendingSchemaModule module;
const bool found = pendingSchemaModules().Consume( schema, module );
const bool valid = found &&
image.version == SchemaModuleImageVersion_1 &&
module.entities.size() == image.entityCount &&
module.types.size() == image.typeCount &&
module.attributes.size() == image.attributeCount;
assert( valid );
if( !valid ) {
_schema = 0;
_entities.clear();
_types.clear();
_attributes.clear();
return;
}
_schema = &schema;
_fingerprint = 0;
_entities.swap( module.entities );
_types.swap( module.types );
_attributes.swap( module.attributes );
prepareLateBoundLayouts( _entities );
}
bool SchemaModule::InitializeFromContext(
Schema & schema, SchemaLoadContext & context, uint64_t fingerprint ) {
SchemaLoadContext::Impl::ModuleMap::iterator i =
context._impl->modules.find( &schema );
if( i == context._impl->modules.end() ) {
return false;
}
_schema = &schema;
_entities.swap( i->second.entities );
_types.swap( i->second.types );
_attributes.swap( i->second.attributes );
_fingerprint = fingerprint;
context._impl->modules.erase( i );
prepareLateBoundLayouts( _entities );
return true;
}
bool SchemaModule::IsInitialized() const {
return _schema != 0;
}
const Schema & SchemaModule::GetSchema() const {
assert( _schema );
return *_schema;
}
const EntityDescriptor * SchemaModule::Entity( size_t id ) const {
return id < _entities.size() ? _entities[id] : 0;
}
const TypeDescriptor * SchemaModule::Type( size_t id ) const {
return id < _types.size() ? _types[id] : 0;
}
const AttrDescriptor * SchemaModule::Attribute( size_t id ) const {
return id < _attributes.size() ? _attributes[id] : 0;
}
size_t SchemaModule::EntityCount() const {
return _entities.size();
}
size_t SchemaModule::TypeCount() const {
return _types.size();
}
size_t SchemaModule::AttributeCount() const {
return _attributes.size();
}
uint64_t SchemaModule::Fingerprint() const {
return _fingerprint;
}