public XbimParserState(IPersistEntity entity, ILogger logger = null)
{
_currentInstance = new Part21Entity(entity);
_processStack.Push(_currentInstance);
_logger = logger;
_metadata = entity.Model.Metadata;
}
public XbimParserState(IPersistEntity entity, ILogger logger = null)
{
_logger = logger ?? XbimLogging.CreateLogger <EsentModel>();
_currentInstance = new Part21Entity(entity);
_processStack.Push(_currentInstance);
_metadata = entity.Model.Metadata;
}
public bool Resolve(ConcurrentDictionary <int, IPersistEntity> references, ExpressMetaData metadata)
{
IPersistEntity entity;
if (references.TryGetValue(ReferenceEntityLabel, out entity))
{
var pv = new PropertyValue();
pv.Init(entity);
try
{
_referencingEntity.Parse(_referencingPropertyId, pv, _nestedIndex);
return(true);
}
catch (Exception)
{
var expressType = metadata.ExpressType(_referencingEntity);
//TODO put a logger message here
//EsentModel.Logger.ErrorFormat("Data Error. Cannot set the property = {0} of entity #{1} = {2} to entity #{3}, schema violation. Ignored",
// expressType.Properties[_referencingPropertyId+1].PropertyInfo.Name,
// _referencingEntity.EntityLabel,
// _referencingEntity.GetType().Name,
// ReferenceEntityLabel);
return(false);
}
}
else
{
return(false);
}
}
/// <summary>
/// Writes full model into output writer as STEP21 file
/// </summary>
/// <param name="model">Model to be serialized</param>
/// <param name="output">Output writer</param>
/// <param name="metadata">Metadata to be used for serialization</param>
/// <param name="map">Optional map can be used to map occurrences in the file</param>
private void Write(TextWriter output)
{
ExpressMetaData metadata = Metadata;
var header = Header ?? new StepFileHeader(StepFileHeader.HeaderCreationMode.InitWithXbimDefaults, this);
string fallBackSchema = EntityFactory.SchemasIds.FirstOrDefault();
if (!header.FileSchema.Schemas.Any())
{
foreach (var id in EntityFactory.SchemasIds)
{
header.FileSchema.Schemas.Add(id);
}
}
Part21Writer.WriteHeader(header, output, fallBackSchema);
foreach (var entity in Instances)
{
if (_comments.TryGetValue(entity.EntityLabel, out string comment))
{
comment = comment.Trim('\r', '\n');
comment = comment.Replace("\r\n", "\r\n* ");
output.WriteLine();
output.WriteLine($"/**");
output.WriteLine("* " + comment);
output.WriteLine($"* {GetMetaComment(entity)}*/");
}
Part21Writer.WriteEntity(entity, output, metadata, null);
output.WriteLine();
}
Part21Writer.WriteFooter(output);
}
/// <summary>
/// This function writes model entities to the defined XML output.
/// </summary>
/// <param name="model">Model to be used for serialization. If no entities are specified IModel.Instances will be used as a
/// source of entities to be serialized.</param>
/// <param name="output">Output XML</param>
/// <param name="entities">Optional entities enumerable. If you define this enumerable it will be
/// used instead of all entities from IModel.Instances. This allows to define different way of entities retrieval
/// like volatile instances from persisted DB model</param>
public void Write(IModel model, XmlWriter output, IEnumerable <IPersistEntity> entities = null)
{
_metadata = model.Metadata;
try
{
_written = new HashSet <long>();
output.WriteStartDocument();
output.WriteStartElement("ex", "iso_10303_28", Iso10303Urn);
output.WriteAttributeString("version", "2.0");
output.WriteAttributeString("xmlns", "xsi", null, Xsi);
output.WriteAttributeString("xmlns", "xlink", null, Xlink);
output.WriteAttributeString("xmlns", "ex", null, Iso10303Urn);
output.WriteAttributeString("xsi", "schemaLocation", null,
string.Format("{0} {1}", Iso10303Urn, ExXsd));
_fileHeader = model.Header;
WriteISOHeader(output);
//Write out the uos
output.WriteStartElement("uos", Namespace);
output.WriteAttributeString("id", "uos_1");
output.WriteAttributeString("description", "Xbim IfcXml Export");
output.WriteAttributeString("configuration", "i_ifc2x3");
output.WriteAttributeString("edo", "");
output.WriteAttributeString("xmlns", "ex", null, Iso10303Urn);
output.WriteAttributeString("xmlns", "ifc", null, Namespace);
output.WriteAttributeString("xsi", "schemaLocation", null, string.Format("{0} {1}", Namespace, IfcXsd));
//use specified entities enumeration or just all instances in the model
if (entities != null)
{
foreach (var entity in entities)
{
Write(entity, output);
}
}
else
{
foreach (var entity in model.Instances)
{
Write(entity, output);
}
}
output.WriteEndElement(); //uos
output.WriteEndElement(); //iso_10303_28
output.WriteEndDocument();
}
catch (Exception e)
{
throw new Exception("Failed to write IfcXml file", e);
}
finally
{
_written = null;
}
}
protected XbimP21Parser(ExpressMetaData metadata)
{
Metadata = metadata;
const int entityApproxCount = 5000;
_entities = new Dictionary <long, IPersist>(entityApproxCount);
_deferredReferences = new List <DeferredReference>(entityApproxCount / 2); //assume 50% deferred
ErrorCount = 0;
}
private static Type GetImplementation <T>(ExpressMetaData metadata)
{
var implementations = metadata.TypesImplementing(typeof(T)).ToList();
var ids = new HashSet <short>(implementations.Select(i => i.TypeId));
var root = implementations.AsQueryable()
.FirstOrDefault(i => !ids.Contains(i.SuperType.TypeId));
return(root.Type);
}
/// <summary>
/// This function writes model entities to the defined XML output.
/// </summary>
/// <param name="model">Model to be used for serialization. If no entities are specified IModel.Instances will be used as a
/// source of entities to be serialized.</param>
/// <param name="output">Output XML</param>
/// <param name="entities">Optional entities enumerable. If you define this enumerable it will be
/// used instead of all entities from IModel.Instances. This allows to define different way of entities retrieval
/// like volatile instances from persisted DB model</param>
public void Write(IModel model, XmlWriter output, IEnumerable <IPersistEntity> entities = null)
{
_metadata = model.Metadata;
try
{
_written = new HashSet <long>();
output.WriteStartDocument();
output.WriteStartElement(_rootElementName, _ns);
//xmlns declarations
output.WriteAttributeString("xmlns", "xsi", null, Xsi);
output.WriteAttributeString("xmlns", "xlink", null, Xlink);
output.WriteAttributeString("xmlns", _nsPrefix, null, _ns);
if (!string.IsNullOrWhiteSpace(_nsLocation))
{
output.WriteAttributeString("schemaLocation", Xsi, string.Format("{0} {1}", _ns, _nsLocation));
}
//root attributes
output.WriteAttributeString("id", "uos_1");
if (!string.IsNullOrWhiteSpace(_expressUri))
{
output.WriteAttributeString("express", _expressUri);
}
if (!string.IsNullOrWhiteSpace(_configurationUri))
{
output.WriteAttributeString("configuration", _configurationUri);
}
_fileHeader = model.Header;
WriteHeader(output);
//use specified entities enumeration or just all instances in the model
entities = entities ?? model.Instances;
foreach (var entity in entities)
{
WriteEntity(entity, output, true);
}
output.WriteEndElement(); //root element
output.WriteEndDocument();
}
catch (Exception e)
{
throw new Exception("Failed to write XML file", e);
}
finally
{
_written = null;
}
}
protected void Init(IEntityFactory factory)
{
_factory = factory;
InstanceCache = new PersistedEntityInstanceCache(this, factory);
InstancesLocal = new XbimInstanceCollection(this);
var r = new Random();
UserDefinedId = (short)r.Next(short.MaxValue); // initialise value at random to reduce chance of duplicates
Metadata = ExpressMetaData.GetMetadata(factory.GetType().Module);
ModelFactors = new XbimModelFactors(Math.PI / 180, 1e-3, 1e-5);
}
/// <summary>
/// Writes full model into output writer as STEP21 file
/// </summary>
/// <param name="model">Model to be serialized</param>
/// <param name="output">Output writer</param>
/// <param name="metadata">Metadata to be used for serialization</param>
/// <param name="map">Optional map can be used to map occurrences in the file</param>
/// <param name="progress">A progress delegate</param>
public static void Write(IModel model, TextWriter output, ExpressMetaData metadata, IDictionary <int, int> map = null, ReportProgressDelegate progress = null)
{
var header = model.Header ?? new StepFileHeader(StepFileHeader.HeaderCreationMode.InitWithXbimDefaults, model);
string fallBackSchema = null;
if (header.FileSchema == null || !header.FileSchema.Schemas.Any())
{
var instance = model.Instances.FirstOrDefault();
if (instance != null)
{
var eft = instance.GetType().GetTypeInfo().Assembly.GetTypes().Where(t => typeof(IEntityFactory).GetTypeInfo().IsAssignableFrom(t)).FirstOrDefault();
if (eft == null)
{
throw new XbimException("It wasn't possible to find valid schema definition");
}
var ef = Activator.CreateInstance(eft) as IEntityFactory;
if (ef == null)
{
throw new XbimException("It wasn't possible to find valid schema definition");
}
fallBackSchema = string.Join(",", ef.SchemasIds);
}
}
WriteHeader(header, output, fallBackSchema);
var count = model.Instances.Count;
var counter = 0;
var report = progress != null;
foreach (var entity in model.Instances)
{
WriteEntity(entity, output, metadata, map);
output.WriteLine();
if (report)
{
counter++;
// report every 1000 entities
if (counter % 1000 == 0)
{
var percent = (int)((float)counter / (float)count);
progress(percent, null);
}
}
}
WriteFooter(output);
if (progress != null)
{
progress(100, null);
}
}
public void Init(ExpressMetaData metadata)
{
MetaData = metadata;
if (ClassMappings == null)
{
return;
}
foreach (var classMapping in ClassMappings)
{
classMapping.Init(this);
}
}
public XbimP21Parser(Stream strm, ExpressMetaData metadata, long streamSize)
: base(strm)
{
Metadata = metadata;
var entityApproxCount = 5000;
if (streamSize > 0)
{
_streamSize = streamSize;
entityApproxCount = Convert.ToInt32(_streamSize / 50); //average 50 bytes per entity.
}
_entities = new Dictionary <long, IPersist>(entityApproxCount);
_deferredReferences = new List <DeferredReference>(entityApproxCount / 2); //assume 50% deferred
ErrorCount = 0;
}
private ExpressType GetExpressType(ExpressMetaData schema, string classString)
{
var v = schema.ExpressType(classString.ToUpper());
if (v != null)
{
return(v);
}
// warn once only;
if (_failedLookupMessages.Contains(classString.ToUpper()))
{
return(null);
}
Log.Error($"{classString} is not a recognised class in {schema.Module.Name}.");
_failedLookupMessages.Add(classString.ToUpper());
return(null);
}
/// <summary>
/// Constructor of the reader for IFC2x3 XML. XSD is different for different versions of IFC and there is a major difference
/// between IFC2x3 and IFC4 to there are two different classes to deal with this.
/// </summary>x
/// <param name="create">Delegate which will be used to create new entities</param>
/// <param name="finish">Delegate which will be called once the entity is finished (no changes will be made to it)
/// This is useful for a DB when this is the point when it can be serialized to DB</param>
/// <param name="metadata">Metadata model used to inspect Express types and their properties</param>
public IfcXmlReader(GetOrCreateEntity create, FinishEntity finish, ExpressMetaData metadata)
{
if (create == null)
{
throw new ArgumentNullException("create");
}
if (finish == null)
{
throw new ArgumentNullException("finish");
}
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
_create = create;
_finish = finish;
_metadata = metadata;
}
public MemoryModel(IEntityFactory entityFactory, int labelFrom = 0)
{
if (entityFactory == null)
{
throw new ArgumentNullException("entityFactory");
}
_entityFactory = entityFactory;
_instances = new EntityCollection(this, labelFrom);
Header = new StepFileHeader(StepFileHeader.HeaderCreationMode.InitWithXbimDefaults);
foreach (var schemasId in _instances.Factory.SchemasIds)
{
Header.FileSchema.Schemas.Add(schemasId);
}
ModelFactors = new XbimModelFactors(Math.PI / 180, 1e-3, 1e-5);
Metadata = ExpressMetaData.GetMetadata(entityFactory.GetType().Module);
IsTransactional = true;
}
/// <summary>
/// Constructor of the reader for IFC2x3 XML. XSD is different for different versions of IFC and there is a major difference
/// between IFC2x3 and IFC4 to there are two different classes to deal with this.
/// </summary>x
/// <param name="getOrCreate">Delegate which will be used to getOrCreate new entities</param>
/// <param name="finish">Delegate which will be called once the entity is finished (no changes will be made to it)
/// This is useful for a DB when this is the point when it can be serialized to DB</param>
/// <param name="metadata">Metadata model used to inspect Express types and their properties</param>
public XbimXmlReader4(GetOrCreateEntity getOrCreate, FinishEntity finish, ExpressMetaData metadata)
{
if (getOrCreate == null)
{
throw new ArgumentNullException("getOrCreate");
}
if (finish == null)
{
throw new ArgumentNullException("finish");
}
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
_getOrCreate = getOrCreate;
_finish = finish;
_metadata = metadata;
}
public override string ToString()
{
ExpressMetaData md = null;
if (Model != null)
{
md = Model.Metadata;
}
else
{
md = ExpressMetaData.GetMetadata(GetType().Module);
}
using (var sw = new StringWriter())
{
Part21Writer.WriteEntity(this, sw, md);
return(sw.ToString());
}
}
private static void WriteEntity(IPersistEntity entity, TextWriter output, ExpressMetaData metadata)
{
var expressType = metadata.ExpressType(entity);
output.Write("#{0}={1}(", entity.EntityLabel, expressType.ExpressNameUpper);
var first = true;
foreach (var ifcProperty in expressType.Properties.Values)
//only write out persistent attributes, ignore inverses
{
if (ifcProperty.EntityAttribute.State == EntityAttributeState.DerivedOverride)
{
if (!first)
{
output.Write(',');
}
output.Write('*');
first = false;
}
else
{
// workaround for IfcCartesianPointList3D from IFC4x1
if (entity is IfcCartesianPointList3D && ifcProperty.Name == "TagList")
{
continue;
}
var propType = ifcProperty.PropertyInfo.PropertyType;
var propVal = ifcProperty.PropertyInfo.GetValue(entity, null);
if (!first)
{
output.Write(',');
}
Part21Writer.WriteProperty(propType, propVal, output, null, metadata);
first = false;
}
}
output.Write(");");
}
/// <summary>
/// Constructor of the reader for IFC2x3 XML. XSD is different for different versions of IFC and there is a major difference
/// between IFC2x3 and IFC4 to there are two different classes to deal with this.
/// </summary>x
/// <param name="getOrCreate">Delegate which will be used to getOrCreate new entities</param>
/// <param name="finish">Delegate which will be called once the entity is finished (no changes will be made to it)
/// This is useful for a DB when this is the point when it can be serialized to DB</param>
/// <param name="metadata">Metadata model used to inspect Express types and their properties</param>
/// <param name="logger">A Logger</param>
public XbimXmlReader4(GetOrCreateEntity getOrCreate, FinishEntity finish, ExpressMetaData metadata, ILogger logger)
{
if (getOrCreate == null)
{
throw new ArgumentNullException("getOrCreate");
}
if (finish == null)
{
throw new ArgumentNullException("finish");
}
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
_getOrCreate = getOrCreate;
_finish = finish;
_metadata = metadata;
Logger = logger ?? XbimLogging.CreateLogger <XbimXmlReader4>();;
}
/// <summary>
/// Writes full model into output writer as STEP21 file
/// </summary>
/// <param name="model">Model to be serialized</param>
/// <param name="output">Output writer</param>
/// <param name="metadata">Metadata to be used for serialization</param>
/// <param name="map">Optional map can be used to map occurrences in the file</param>
public static void Write(IModel model, TextWriter output, ExpressMetaData metadata, IDictionary <int, int> map = null)
{
var header = model.Header ?? new StepFileHeader(StepFileHeader.HeaderCreationMode.InitWithXbimDefaults);
string fallBackSchema = null;
if (header.FileSchema == null || !header.FileSchema.Schemas.Any())
{
var instance = model.Instances.FirstOrDefault();
if (instance != null)
{
var eft = instance.GetType().Assembly.GetTypes().Where(t => typeof(IEntityFactory).IsAssignableFrom(t)).FirstOrDefault();
if (eft == null)
{
throw new XbimException("It wasn't possible to find valid schema definition");
}
var ef = Activator.CreateInstance(eft) as IEntityFactory;
if (ef == null)
{
throw new XbimException("It wasn't possible to find valid schema definition");
}
fallBackSchema = string.Join(",", ef.SchemasIds);
}
}
WriteHeader(header, output, fallBackSchema);
var esent = model as EsentModel;
var instances = esent != null?
esent.InstanceHandles.Select(h => esent.GetInstanceVolatile(h.EntityLabel)) :
model.Instances;
foreach (var entity in instances)
{
WriteEntity(entity, output, metadata, map);
output.WriteLine();
}
WriteFooter(output);
}
private void PopulateTree()
{
// this is done through the metadata in order to ensure that class relationships are loaded
var module4 = (typeof(Xbim.Ifc4.Kernel.IfcProduct)).Module;
var meta4 = ExpressMetaData.GetMetadata(module4);
var product4 = meta4.ExpressType("IFCPRODUCT");
TypesTree.Items.Add(new ObjectViewModel()
{
Header = "Ifc4.IfcProduct", Tag = new ExpressTypeExpander(product4, Model), IsChecked = true
});
// this is done through the metadata in order to ensure that class relationships are loaded
var module2X3 = (typeof(Xbim.Ifc2x3.Kernel.IfcProduct)).Module;
var meta2X3 = ExpressMetaData.GetMetadata(module2X3);
var product2X3 = meta2X3.ExpressType("IFCPRODUCT");
TypesTree.Items.Add(new ObjectViewModel()
{
Header = "Ifc2x3.IfcProduct", Tag = new ExpressTypeExpander(product2X3, Model), IsChecked = true
});
}
private static void WriteEntityRecursive(IPersistEntity entity, ExpressMetaData metadata, TextWriter writer, HashSet <int> written)
{
if (written.Contains(entity.EntityLabel))
{
return;
}
Part21Writer.WriteEntity(entity, writer, metadata);
written.Add(entity.EntityLabel);
var references = entity as IContainsEntityReferences;
if (references == null)
{
return;
}
foreach (var item in references.References)
{
WriteEntityRecursive(item, metadata, writer, written);
}
}
/// <summary>
/// Writes the entity to a TextWriter in the Part21 format
/// </summary>
/// <param name="output">The TextWriter</param>
/// <param name="entity">The entity to write</param>
/// <param name="metadata"></param>
/// <param name="map"></param>
public static void WriteEntity(IPersistEntity entity, TextWriter output, ExpressMetaData metadata, IDictionary <int, int> map = null)
{
var expressType = metadata.ExpressType(entity);
if (map != null && map.Keys.Contains(entity.EntityLabel))
{
return; //if the entity is replaced in the map do not write it
}
output.Write("#{0}={1}(", entity.EntityLabel, expressType.ExpressNameUpper);
var first = true;
foreach (var ifcProperty in expressType.Properties.Values)
//only write out persistent attributes, ignore inverses
{
if (ifcProperty.EntityAttribute.State == EntityAttributeState.DerivedOverride)
{
if (!first)
{
output.Write(',');
}
output.Write('*');
first = false;
}
else
{
var propType = ifcProperty.PropertyInfo.PropertyType;
var propVal = ifcProperty.PropertyInfo.GetValue(entity, null);
if (!first)
{
output.Write(',');
}
WriteProperty(propType, propVal, output, map, metadata);
first = false;
}
}
output.Write(");");
}
private ValidationResult CheckMeasureType(string typeName, ExpressMetaData metadata, bool reference)
{
// null or empty is a valid value
if (string.IsNullOrWhiteSpace(typeName))
{
return(null);
}
typeName = typeName.ToUpperInvariant();
var err = new ValidationResult
{
IssueSource = "Measure type validation",
IssueType = ValidationFlags.Properties,
};
if (!metadata.TryGetExpressType(typeName, out ExpressType eType))
{
err.Message = $"Type {typeName} is not an IFC type.";
return(err);
}
var type = eType.Type;
if (!reference && !typeof(IIfcValue).IsAssignableFrom(type))
{
err.Message = $"Type {typeName} is not applicable. This must be assignable to 'IfcValue'";
return(err);
}
if (reference && !typeof(IIfcObjectReferenceSelect).IsAssignableFrom(type))
{
err.Message = $"Type {typeName} is not applicable. This must be assignable to 'IfcObjectReferenceSelect'";
return(err);
}
return(null);
}
public static void Export()
{
var valType = typeof(IfcValue);
var types = valType.Assembly.GetTypes()
.Where(t => t.IsValueType && valType.IsAssignableFrom(t))
.OrderBy(t => t.Name);
using (var w = File.CreateText("MeasureTypeEnum.csv"))
{
// header
w.WriteLine($"Identifier, Name");
foreach (var t in types)
{
w.WriteLine($"{t.Name}, {Format(t.Name)}");
}
}
types = valType.Assembly.GetTypes()
.Where(t => !t.IsAbstract && typeof(IfcObjectReferenceSelect).IsAssignableFrom(t))
.OrderBy(t => t.Name);
using (var w = File.CreateText("ReferenceTypeEnum.csv"))
{
// header
w.WriteLine($"Identifier, Name");
foreach (var t in types)
{
w.WriteLine($"{t.Name}, {Format(t.Name)}");
}
}
var meta = ExpressMetaData.GetMetadata(valType.Module);
var product = meta.ExpressType("IFCPRODUCT");
var element = meta.ExpressType("IFCELEMENT");
var spatial = meta.ExpressType("IFCSPATIALELEMENT");
var stack = new Stack <ExpressType>(new [] { element, spatial });
var enumCounter = 5000;
using (var w = File.CreateText("ApplicableIfcTypes.csv"))
{
// header
w.WriteLine($"ID, Identifier, Name, Parent");
// root
w.WriteLine($"{product.TypeId}, {product.Name}, {Format(product.Name)}, NULL");
while (stack.Count != 0)
{
var type = stack.Pop();
if (type.SubTypes != null && type.SubTypes.Any())
{
foreach (var t in type.SubTypes)
{
stack.Push(t);
}
}
w.WriteLine($"{type.TypeId}, {type.Name}, {Format(type.Name)}, {type.SuperType.TypeId}");
// predefined types
var pdt = type.Properties.Select(kvp => kvp.Value).FirstOrDefault(p => string.Equals(p.Name, "PredefinedType"));
if (pdt == null)
{
continue;
}
var pdtType = pdt.PropertyInfo.PropertyType;
if (pdtType.IsGenericType)
{
pdtType = Nullable.GetUnderlyingType(pdtType);
}
var values = Enum.GetNames(pdtType);
foreach (var value in values)
{
w.WriteLine($"{++enumCounter}, {value}, {value}, {type.TypeId}");
}
}
}
}
public XbimGeometryHandleCollection(IEnumerable <XbimGeometryHandle> enumerable, ExpressMetaData metadata)
: base(enumerable)
{
_metadata = metadata;
}
/// <summary>
/// Writes the in memory data of the entity to a stream
/// </summary>
/// <param name = "entityStream"></param>
/// <param name = "entityWriter"></param>
/// <param name = "item"></param>
/// <param name="metadata"></param>
private static int WriteEntityToSteam(MemoryStream entityStream, BinaryWriter entityWriter, IPersistEntity item, ExpressMetaData metadata)
{
entityWriter.Seek(0, SeekOrigin.Begin);
entityWriter.Write(0);
item.WriteEntity(entityWriter, metadata);
var len = Convert.ToInt32(entityStream.Position);
entityWriter.Seek(0, SeekOrigin.Begin);
entityWriter.Write(len);
entityWriter.Seek(0, SeekOrigin.Begin);
return(len);
}
private static void WriteProperty(Type propType, object propVal, BinaryWriter entityWriter, ExpressMetaData metadata)
{
Type itemType;
if (propVal == null) //null or a value type that maybe null
{
entityWriter.Write(Convert.ToByte(P21ParseAction.SetNonDefinedValue));
}
else if (propVal is IOptionalItemSet && !((IOptionalItemSet)propVal).Initialized)
{
entityWriter.Write(Convert.ToByte(P21ParseAction.SetNonDefinedValue));
}
else if (propType.IsGenericType && propType.GetGenericTypeDefinition() == typeof(Nullable <>))
//deal with undefined types (nullables)
{
var complexType = propVal as IExpressComplexType;
if (complexType != null)
{
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginList));
foreach (var compVal in complexType.Properties)
{
WriteProperty(compVal.GetType(), compVal, entityWriter, metadata);
}
entityWriter.Write(Convert.ToByte(P21ParseAction.EndList));
}
else if ((propVal is IExpressValueType))
{
var expressVal = (IExpressValueType)propVal;
WriteValueType(expressVal.UnderlyingSystemType, expressVal.Value, entityWriter);
}
else
{
WriteValueType(propVal.GetType(), propVal, entityWriter);
}
}
else if (typeof(IExpressComplexType).IsAssignableFrom(propType))
{
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginList));
foreach (var compVal in ((IExpressComplexType)propVal).Properties)
{
WriteProperty(compVal.GetType(), compVal, entityWriter, metadata);
}
entityWriter.Write(Convert.ToByte(P21ParseAction.EndList));
}
else if (typeof(IExpressValueType).IsAssignableFrom(propType))
//value types with a single property (IfcLabel, IfcInteger)
{
var realType = propVal.GetType();
if (realType != propType)
//we have a type but it is a select type use the actual value but write out explicitly
{
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginNestedType));
entityWriter.Write(realType.Name.ToUpper());
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginList));
WriteProperty(realType, propVal, entityWriter, metadata);
entityWriter.Write(Convert.ToByte(P21ParseAction.EndList));
entityWriter.Write(Convert.ToByte(P21ParseAction.EndNestedType));
}
else //need to write out underlying property value
{
var expressVal = (IExpressValueType)propVal;
WriteValueType(expressVal.UnderlyingSystemType, expressVal.Value, entityWriter);
}
}
else if (typeof(IExpressEnumerable).IsAssignableFrom(propType) &&
(itemType = propType.GetItemTypeFromGenericType()) != null)
//only process lists that are real lists, see cartesianpoint
{
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginList));
foreach (var item in ((IExpressEnumerable)propVal))
{
WriteProperty(itemType, item, entityWriter, metadata);
}
entityWriter.Write(Convert.ToByte(P21ParseAction.EndList));
}
else if (typeof(IPersistEntity).IsAssignableFrom(propType))
//all writable entities must support this interface and ExpressType have been handled so only entities left
{
var val = ((IPersistEntity)propVal).EntityLabel;
if (val <= UInt16.MaxValue)
{
entityWriter.Write((byte)P21ParseAction.SetObjectValueUInt16);
entityWriter.Write(Convert.ToUInt16(val));
}
else if (val <= Int32.MaxValue)
{
entityWriter.Write((byte)P21ParseAction.SetObjectValueInt32);
entityWriter.Write(Convert.ToInt32(val));
}
//else if (val <= Int64.MaxValue)
//{
// //This is a very large model and it is unlikely we will be able to handle this number of entities,
// //it is possible they have just created big labels and it needs to be renumbered
// //Entity Label could be redfined as a long bu this is a large overhead if never required, let's see...
// throw new XbimException("Entity Label is Init64, this is not currently supported");
// //entityWriter.Write((byte)P21ParseAction.SetObjectValueInt64);
// //entityWriter.Write(val);
//}
else
{
throw new Exception("Entity Label exceeds maximim value for a an int32 long number");
}
}
else if (propType.IsValueType || propType == typeof(string)) //it might be an in-built value type double, string etc
{
WriteValueType(propVal.GetType(), propVal, entityWriter);
}
else if (typeof(IExpressSelectType).IsAssignableFrom(propType))
// a select type get the type of the actual value
{
if (propVal.GetType().IsValueType) //we have a value type, so write out explicitly
{
var type = metadata.ExpressType(propVal.GetType());
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginNestedType));
entityWriter.Write(type.ExpressNameUpper);
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginList));
WriteProperty(propVal.GetType(), propVal, entityWriter, metadata);
entityWriter.Write(Convert.ToByte(P21ParseAction.EndList));
entityWriter.Write(Convert.ToByte(P21ParseAction.EndNestedType));
}
else //could be anything so re-evaluate actual type
{
WriteProperty(propVal.GetType(), propVal, entityWriter, metadata);
}
}
else
{
throw new Exception(string.Format("Entity has illegal property {0} of type {1}",
propType.Name, propType.Name));
}
}
internal static void WriteEntity(this IPersistEntity entity, BinaryWriter entityWriter, ExpressMetaData metadata)
{
var expressType = metadata.ExpressType(entity);
// entityWriter.Write(Convert.ToByte(P21ParseAction.NewEntity));
entityWriter.Write(Convert.ToByte(P21ParseAction.BeginList));
foreach (var ifcProperty in expressType.Properties.Values)
//only write out persistent attributes, ignore inverses
{
if (ifcProperty.EntityAttribute.State == EntityAttributeState.DerivedOverride)
{
entityWriter.Write(Convert.ToByte(P21ParseAction.SetOverrideValue));
}
else
{
var propType = ifcProperty.PropertyInfo.PropertyType;
var propVal = ifcProperty.PropertyInfo.GetValue(entity, null);
WriteProperty(propType, propVal, entityWriter, metadata);
}
}
entityWriter.Write(Convert.ToByte(P21ParseAction.EndList));
entityWriter.Write(Convert.ToByte(P21ParseAction.EndEntity));
}
internal static void WriteEntity(this IPersistEntity entity, TextWriter tw, byte[] propertyData, ExpressMetaData metadata)
{
var type = metadata.ExpressType(entity);
tw.Write("#{0}={1}", entity.EntityLabel, type.ExpressNameUpper);
var br = new BinaryReader(new MemoryStream(propertyData));
var action = (P21ParseAction)br.ReadByte();
var comma = false; //the first property
while (action != P21ParseAction.EndEntity)
{
switch (action)
{
case P21ParseAction.BeginList:
tw.Write("(");
break;
case P21ParseAction.EndList:
tw.Write(")");
break;
case P21ParseAction.BeginComplex:
tw.Write("&SCOPE");
break;
case P21ParseAction.EndComplex:
tw.Write("ENDSCOPE");
break;
case P21ParseAction.SetIntegerValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write(br.ReadInt64().ToString());
break;
case P21ParseAction.SetHexValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write(Convert.ToString(br.ReadInt64(), 16));
break;
case P21ParseAction.SetFloatValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write(br.ReadDouble().AsPart21());
break;
case P21ParseAction.SetStringValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write(br.ReadString());
break;
case P21ParseAction.SetEnumValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write("." + br.ReadString() + ".");
break;
case P21ParseAction.SetBooleanValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write(br.ReadBoolean() ? ".T." : ".F.");
break;
case P21ParseAction.SetNonDefinedValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write("$");
break;
case P21ParseAction.SetOverrideValue:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write("*");
break;
case P21ParseAction.SetObjectValueUInt16:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write("#" + br.ReadUInt16());
break;
case P21ParseAction.SetObjectValueInt32:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write("#" + br.ReadInt32());
break;
case P21ParseAction.SetObjectValueInt64:
if (comma)
{
tw.Write(",");
}
comma = true;
tw.Write("#" + br.ReadInt64());
break;
case P21ParseAction.BeginNestedType:
if (comma)
{
tw.Write(",");
}
comma = false;
tw.Write(br.ReadString() + "(");
break;
case P21ParseAction.EndNestedType:
comma = true;
tw.Write(")");
break;
case P21ParseAction.EndEntity:
tw.Write(");");
break;
case P21ParseAction.NewEntity:
comma = false;
tw.Write("(");
break;
default:
throw new Exception("Invalid Property Record #" + entity.EntityLabel + " EntityType: " + entity.GetType().Name);
}
action = (P21ParseAction)br.ReadByte();
}
tw.WriteLine();
}
