/// <summary>
/// Reads schema version from the stream on the fly inside the parser so it doesn't need to
/// access the file twice.
/// </summary>
/// <param name="stream">Input stream for step21 text file</param>
/// <param name="logger">Logger</param>
/// <param name="progressDel">Progress delegate</param>
/// <param name="ignoreTypes">A list of ifc types to skip</param>
/// <param name="allowMissingReferences">Allow referenced entities that are not in the model, default false</param>
/// <param name="keepOrder">When true, serialised file will maintain order of entities from the original file (or order of creation)</param>
/// <returns>New memory model</returns>
public static MemoryModel OpenReadStep21(Stream stream, ILogger logger = null, ReportProgressDelegate progressDel = null,
IEnumerable <string> ignoreTypes = null, bool allowMissingReferences = false, bool keepOrder = true)
{
var model = new MemoryModel((IEnumerable <string> schemas) =>
{
var schema = GetStepFileXbimSchemaVersion(schemas);
return(GetFactory(schema));
}, logger)
{
AllowMissingReferences = allowMissingReferences
};
if (!keepOrder)
{
model.DiscardNaturalOrder();
}
long len = -1;
try
{
len = stream.Length;
}
catch (Exception)
{
// if lenght is not supported use len as previously set;
}
model.LoadStep21(stream, len, progressDel, ignoreTypes);
return(model);
}
/// <summary>
/// Reads schema version from the stream on the fly inside the parser so it doesn't need to
/// access the file twice.
/// </summary>
/// <param name="stream">Input stream for step21 text file</param>
/// <param name="logger">Logger</param>
/// <param name="progressDel">Progress delegate</param>
/// <param name="ignoreTypes">A list of ifc types to skip</param>
/// <param name="allowMissingReferences">Allow referenced entities that are not in the model, default false</param>
/// <param name="keepOrder">When true, serialised file will maintain order of entities from the original file (or order of creation)</param>
/// <returns>New memory model</returns>
public static MemoryModel OpenReadStep21(Stream stream, ILogger logger = null, ReportProgressDelegate progressDel = null,
IEnumerable <string> ignoreTypes = null, bool allowMissingReferences = false, bool keepOrder = true)
{
var model = new MemoryModel((IEnumerable <string> schemas) =>
{
var schema = GetStepFileXbimSchemaVersion(schemas);
return(GetFactory(schema));
}, logger)
{
AllowMissingReferences = allowMissingReferences
};
if (!keepOrder)
{
model.DiscardNaturalOrder();
}
model.LoadStep21(stream, stream.Length, progressDel, ignoreTypes);
return(model);
}