mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-10 01:41:57 +00:00
Thomas Krijnen
455 lines
15 KiB
C++
455 lines
15 KiB
C++
/********************************************************************************
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* *
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* This file is part of IfcOpenShell. *
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* *
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* IfcOpenShell is free software: you can redistribute it and/or modify *
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* it under the terms of the Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 of the License, or *
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* (at your option) any later version. *
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* *
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* IfcOpenShell is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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#ifndef IFCSCHEMA_H
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#define IFCSCHEMA_H
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <iterator>
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#include <boost/algorithm/string.hpp>
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#include "../ifcparse/IfcException.h"
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// Forward declarations
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class IfcEntityInstanceData;
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namespace IfcUtil {
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class IfcBaseClass;
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}
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namespace IfcParse {
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class declaration;
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class type_declaration;
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class select_type;
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class enumeration_type;
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class entity;
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class named_type;
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class simple_type;
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class aggregation_type;
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class schema_definition;
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class IFC_PARSE_API parameter_type {
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public:
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virtual const named_type* as_named_type() const { return static_cast<named_type*>(0); }
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virtual const simple_type* as_simple_type() const { return static_cast<simple_type*>(0); }
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virtual const aggregation_type* as_aggregation_type() const { return static_cast<aggregation_type*>(0); }
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virtual bool is(const std::string& /*name*/) const { return false; }
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virtual bool is(const IfcParse::declaration& /*decl*/) const { return false; }
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};
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class IFC_PARSE_API named_type : public parameter_type {
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protected:
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declaration* declared_type_;
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public:
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named_type(declaration* declared_type)
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: declared_type_(declared_type) {}
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declaration* declared_type() const { return declared_type_; }
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virtual const named_type* as_named_type() const { return this; }
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virtual bool is(const std::string& name) const;
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virtual bool is(const IfcParse::declaration& decl) const;
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};
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class IFC_PARSE_API simple_type : public parameter_type {
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public:
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typedef enum { binary_type, boolean_type, integer_type, logical_type, number_type, real_type, string_type, datatype_COUNT } data_type;
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protected:
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data_type declared_type_;
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public:
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simple_type(data_type declared_type)
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: declared_type_(declared_type) {}
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data_type declared_type() const { return declared_type_; }
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virtual const simple_type* as_simple_type() const { return this; }
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};
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class IFC_PARSE_API aggregation_type : public parameter_type {
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public:
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typedef enum { array_type, bag_type, list_type, set_type } aggregate_type;
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protected:
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aggregate_type type_of_aggregation_;
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int bound1_, bound2_;
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parameter_type* type_of_element_;
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public:
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aggregation_type(aggregate_type type_of_aggregation, int bound1, int bound2, parameter_type* type_of_element)
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: type_of_aggregation_(type_of_aggregation)
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, bound1_(bound1)
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, bound2_(bound2)
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, type_of_element_(type_of_element)
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{}
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aggregate_type type_of_aggregation() const { return type_of_aggregation_; }
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int bound1() const { return bound1_; }
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int bound2() const { return bound2_; }
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parameter_type* type_of_element() const { return type_of_element_; }
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virtual const aggregation_type* as_aggregation_type() const { return this; }
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};
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class IFC_PARSE_API declaration {
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friend class schema_definition;
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protected:
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std::string name_, name_lower_;
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int index_in_schema_;
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mutable const schema_definition* schema_;
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public:
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declaration(const std::string& name, int index_in_schema)
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: name_(name)
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, name_lower_(boost::to_lower_copy(name))
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, index_in_schema_(index_in_schema)
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, schema_(0)
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{}
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virtual ~declaration() {}
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const std::string& name() const { return name_; }
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const std::string& name_lc() const { return name_lower_; }
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virtual const type_declaration* as_type_declaration() const { return static_cast<type_declaration*>(0); }
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virtual const select_type* as_select_type() const { return static_cast<select_type*>(0); }
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virtual const enumeration_type* as_enumeration_type() const { return static_cast<enumeration_type*>(0); }
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virtual const entity* as_entity() const { return static_cast<entity*>(0); }
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bool is(const std::string& name) const;
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bool is(const IfcParse::declaration& decl) const;
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int index_in_schema() const { return index_in_schema_; }
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int type() const { return index_in_schema_; }
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const schema_definition* schema() const { return schema_; }
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};
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class IFC_PARSE_API type_declaration : public declaration {
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protected:
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const parameter_type* declared_type_;
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public:
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type_declaration(const std::string& name, int index_in_schema, const parameter_type* declared_type)
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: declaration(name, index_in_schema)
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, declared_type_(declared_type) {}
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const parameter_type* declared_type() const { return declared_type_; }
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virtual const type_declaration* as_type_declaration() const { return this; }
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};
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class IFC_PARSE_API select_type : public declaration {
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protected:
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std::vector<const declaration*> select_list_;
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public:
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select_type(const std::string& name, int index_in_schema, const std::vector<const declaration*>& select_list)
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: declaration(name, index_in_schema)
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, select_list_(select_list) {}
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const std::vector<const declaration*>& select_list() const { return select_list_; }
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virtual const select_type* as_select_type() const { return this; }
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};
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class IFC_PARSE_API enumeration_type : public declaration {
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protected:
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std::vector<std::string> enumeration_items_;
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public:
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enumeration_type(const std::string& name, int index_in_schema, const std::vector<std::string>& enumeration_items)
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: declaration(name, index_in_schema)
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, enumeration_items_(enumeration_items) {}
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const std::vector<std::string>& enumeration_items() const { return enumeration_items_; }
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virtual const enumeration_type* as_enumeration_type() const { return this; }
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};
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class IFC_PARSE_API attribute {
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protected:
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std::string name_;
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const parameter_type* type_of_attribute_;
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bool optional_;
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public:
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attribute(const std::string& name, parameter_type* type_of_attribute, bool optional)
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: name_(name)
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, type_of_attribute_(type_of_attribute)
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, optional_(optional) {}
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const std::string& name() const { return name_; }
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const parameter_type* type_of_attribute() const { return type_of_attribute_; }
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bool optional() const { return optional_; }
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};
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class IFC_PARSE_API inverse_attribute {
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public:
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typedef enum { bag_type, set_type, unspecified_type } aggregate_type;
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protected:
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std::string name_;
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aggregate_type type_of_aggregation_;
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int bound1_, bound2_;
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const entity* entity_reference_;
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const attribute* attribute_reference_;
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public:
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inverse_attribute(const std::string& name, aggregate_type type_of_aggregation, int bound1, int bound2, const entity* entity_reference, const attribute* attribute_reference)
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: name_(name)
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, type_of_aggregation_(type_of_aggregation)
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, bound1_(bound1)
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, bound2_(bound2)
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, entity_reference_(entity_reference)
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, attribute_reference_(attribute_reference) {}
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const std::string& name() const { return name_; }
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aggregate_type type_of_aggregation() const { return type_of_aggregation_; }
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int bound1() const { return bound1_; }
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int bound2() const { return bound2_; }
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const entity* entity_reference() const { return entity_reference_; }
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const attribute* attribute_reference() const { return attribute_reference_; }
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};
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class IFC_PARSE_API entity : public declaration {
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protected:
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bool is_abstract_;
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const entity* supertype_; /* NB: IFC explicitly allows only single inheritance */
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std::vector<const entity*> subtypes_;
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std::vector<const attribute*> attributes_;
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std::vector<bool> derived_;
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std::vector<const inverse_attribute*> inverse_attributes_;
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class attribute_by_name_cmp {
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private:
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std::string name_;
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public:
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attribute_by_name_cmp(const std::string name)
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: name_(name) {}
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bool operator()(const attribute* attr) {
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return attr->name() == name_;
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}
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};
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const attribute* attribute_by_index_(size_t& index) const {
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const attribute* attr = 0;
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if (supertype_) {
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attr = supertype_->attribute_by_index_(index);
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}
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if (attr == 0) {
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if (index < attributes_.size()) {
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attr = attributes_[index];
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}
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index -= attributes_.size();
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}
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return attr;
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}
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public:
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entity(const std::string& name, bool is_abstract, int index_in_schema, entity* supertype)
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: declaration(name, index_in_schema)
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, is_abstract_(is_abstract)
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, supertype_(supertype)
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{}
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bool is(const std::string& name) const {
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if (name == name_) return true;
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else if (supertype_) return supertype_->is(name);
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else return false;
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}
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bool is(const IfcParse::declaration& decl) const {
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if (this == &decl) return true;
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else if (supertype_) return supertype_->is(decl);
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else return false;
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}
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bool is_abstract() const { return is_abstract_; }
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void set_subtypes(const std::vector<const entity*>& subtypes) {
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subtypes_ = subtypes;
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}
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void set_attributes(const std::vector<const attribute*>& attributes, const std::vector<bool>& derived) {
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attributes_ = attributes;
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derived_ = derived;
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}
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void set_inverse_attributes(const std::vector<const inverse_attribute*>& inverse_attributes) {
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inverse_attributes_ = inverse_attributes;
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}
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const std::vector<const entity*>& subtypes() const { return subtypes_; }
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const std::vector<const attribute*>& attributes() const { return attributes_; }
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const std::vector<bool>& derived() const { return derived_; }
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const std::vector<const attribute*> all_attributes() const {
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std::vector<const attribute*> attrs;
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attrs.reserve(derived_.size());
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if (supertype_) {
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const std::vector<const attribute*> supertype_attrs = supertype_->all_attributes();
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std::copy(supertype_attrs.begin(), supertype_attrs.end(), std::back_inserter(attrs));
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}
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std::copy(attributes_.begin(), attributes_.end(), std::back_inserter(attrs));
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return attrs;
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}
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const std::vector<const inverse_attribute*> all_inverse_attributes() const {
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std::vector<const inverse_attribute*> attrs;
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if (supertype_) {
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const std::vector<const inverse_attribute*> supertype_inv_attrs = supertype_->all_inverse_attributes();
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std::copy(supertype_inv_attrs.begin(), supertype_inv_attrs.end(), std::back_inserter(attrs));
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}
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std::copy(inverse_attributes_.begin(), inverse_attributes_.end(), std::back_inserter(attrs));
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return attrs;
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}
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const attribute* attribute_by_index(size_t index) const {
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const attribute* attr = attribute_by_index_(index);
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if (attr == 0) {
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throw IfcParse::IfcException("Attribute index out of bounds");
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}
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return attr;
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}
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size_t attribute_count() const {
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size_t super_count = 0;
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if (supertype_) {
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super_count = supertype_->attribute_count();
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}
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return super_count + attributes_.size();
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}
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ptrdiff_t attribute_index(const attribute* attr) const {
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const entity* current = this;
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ptrdiff_t index = -1;
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do {
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if (index > -1) {
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index += current->attributes().size();
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} else {
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std::vector<const attribute*>::const_iterator it;
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it = std::find(current->attributes().begin(), current->attributes().end(), attr);
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if (it != current->attributes().end()) {
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index = std::distance(current->attributes().begin(), it);
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}
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}
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} while ((current = current->supertype_) != 0);
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return index;
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}
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ptrdiff_t attribute_index(const std::string& attr_name) const {
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const entity* current = this;
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ptrdiff_t index = -1;
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attribute_by_name_cmp cmp(attr_name);
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do {
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if (index > -1) {
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index += current->attributes().size();
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} else {
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std::vector<const attribute*>::const_iterator it;
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it = std::find_if(current->attributes().begin(), current->attributes().end(), cmp);
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if (it != current->attributes().end()) {
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index = std::distance(current->attributes().begin(), it);
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}
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}
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} while ((current = current->supertype_) != 0);
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return index;
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}
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const entity* supertype() const { return supertype_; }
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virtual const entity* as_entity() const { return this; }
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};
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class instance_factory {
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public:
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virtual IfcUtil::IfcBaseClass* operator()(IfcEntityInstanceData* data) const = 0;
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};
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class schema_definition {
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private:
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std::string name_;
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std::vector<const declaration*> declarations_;
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std::vector<const type_declaration*> type_declarations_;
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std::vector<const select_type*> select_types_;
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std::vector<const enumeration_type*> enumeration_types_;
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std::vector<const entity*> entities_;
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class declaration_by_name_cmp {
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public:
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bool operator()(const declaration* decl, const std::string& name) {
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return decl->name_lc() < name;
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}
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};
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class declaration_by_index_sort {
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public:
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bool operator()(const declaration* a, const declaration* b) {
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return a->index_in_schema() < b->index_in_schema();
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}
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};
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instance_factory* factory_;
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public:
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schema_definition(const std::string& name, const std::vector<const declaration*>& declarations, instance_factory* factory);
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~schema_definition();
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const declaration* declaration_by_name(const std::string& name) const {
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const std::string name_lower = boost::to_lower_copy(name);
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std::vector<const declaration*>::const_iterator it = std::lower_bound(declarations_.begin(), declarations_.end(), name_lower, declaration_by_name_cmp());
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if (it == declarations_.end() || (**it).name_lc() != name_lower) {
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throw IfcParse::IfcException("Entity with '" + name + "' not found");
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} else {
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return *it;
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}
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}
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const declaration* declaration_by_name(int name) const {
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return declarations_[name];
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}
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const std::vector<const declaration*>& declarations() const { return declarations_; }
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const std::vector<const type_declaration*>& type_declarations() const { return type_declarations_; }
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const std::vector<const select_type*>& select_types() const { return select_types_; }
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const std::vector<const enumeration_type*>& enumeration_types() const { return enumeration_types_; }
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const std::vector<const entity*>& entities() const { return entities_; }
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const std::string& name() const { return name_; }
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IfcUtil::IfcBaseClass* instantiate(IfcEntityInstanceData* data) const;
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};
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const schema_definition* schema_by_name(const std::string&);
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void register_schema(schema_definition*);
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}
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#endif
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