internal void BuildPropertyAttributes(Type type, ref List <Tuple <object, List <Attribute> > > configuredMembers)
{
if (_propertyImports.Any() || _propertyExports.Any())
{
foreach (PropertyInfo pi in type.GetProperties())
{
List <Attribute> attributes = null;
PropertyInfo declaredPi = pi.DeclaringType.UnderlyingSystemType.GetProperty(pi.Name, pi.PropertyType);
int importsBuilt = 0;
bool checkedIfConfigured = false;
bool isConfigured = false;
// Run through the import specifications see if any match
foreach (Tuple <Predicate <PropertyInfo>, Action <PropertyInfo, ImportBuilder>, Type> importSpecification in _propertyImports)
{
if (importSpecification.Item1 != null && importSpecification.Item1(declaredPi))
{
var importBuilder = new ImportBuilder();
if (importSpecification.Item3 != null)
{
importBuilder.AsContractType(importSpecification.Item3);
}
importSpecification.Item2?.Invoke(declaredPi, importBuilder);
if (!checkedIfConfigured)
{
isConfigured = pi.GetCustomAttributes(typeof(ImportAttribute), false).FirstOrDefault() != null || pi.GetCustomAttributes(typeof(ImportManyAttribute), false).FirstOrDefault() != null;
checkedIfConfigured = true;
}
if (isConfigured)
{
CompositionTrace.Registration_MemberImportConventionOverridden(type, pi);
break;
}
else
{
importBuilder.BuildAttributes(declaredPi.PropertyType, ref attributes);
++importsBuilt;
}
}
if (importsBuilt > 1)
{
CompositionTrace.Registration_MemberImportConventionMatchedTwice(type, pi);
}
}
checkedIfConfigured = false;
isConfigured = false;
// Run through the export specifications see if any match
foreach (Tuple <Predicate <PropertyInfo>, Action <PropertyInfo, ExportBuilder>, Type> exportSpecification in _propertyExports)
{
if (exportSpecification.Item1 != null && exportSpecification.Item1(declaredPi))
{
var exportBuilder = new ExportBuilder();
if (exportSpecification.Item3 != null)
{
exportBuilder.AsContractType(exportSpecification.Item3);
}
exportSpecification.Item2?.Invoke(declaredPi, exportBuilder);
if (!checkedIfConfigured)
{
isConfigured = pi.GetCustomAttributes(typeof(ExportAttribute), false).FirstOrDefault() != null || MemberHasExportMetadata(pi);
checkedIfConfigured = true;
}
if (isConfigured)
{
CompositionTrace.Registration_MemberExportConventionOverridden(type, pi);
break;
}
else
{
exportBuilder.BuildAttributes(declaredPi.PropertyType, ref attributes);
}
}
}
if (attributes != null)
{
if (configuredMembers == null)
{
configuredMembers = new List <Tuple <object, List <Attribute> > >();
}
configuredMembers.Add(Tuple.Create((object)declaredPi, attributes));
}
}
}
}
internal IEnumerable <Attribute> BuildTypeAttributes(Type type)
{
var attributes = new List <Attribute>();
if (_typeExportBuilders != null)
{
bool isConfigured = type.GetCustomAttributes(typeof(ExportAttribute), false).FirstOrDefault() != null || MemberHasExportMetadata(type);
if (isConfigured)
{
CompositionTrace.Registration_TypeExportConventionOverridden(type);
}
else
{
foreach (ExportBuilder export in _typeExportBuilders)
{
export.BuildAttributes(type, ref attributes);
}
}
}
if (_setCreationPolicy)
{
// Check if there is already a PartCreationPolicyAttribute
// If found Trace a warning and do not add the registered part creationpolicy
// otherwise add new one
bool isConfigured = type.GetCustomAttributes(typeof(PartCreationPolicyAttribute), false).FirstOrDefault() != null;
if (isConfigured)
{
CompositionTrace.Registration_PartCreationConventionOverridden(type);
}
else
{
attributes.Add(new PartCreationPolicyAttribute(_creationPolicy));
}
}
//Add metadata attributes from direct specification
if (_metadataItems != null)
{
bool isConfigured = type.GetCustomAttributes(typeof(PartMetadataAttribute), false).FirstOrDefault() != null;
if (isConfigured)
{
CompositionTrace.Registration_PartMetadataConventionOverridden(type);
}
else
{
foreach (Tuple <string, object> item in _metadataItems)
{
attributes.Add(new PartMetadataAttribute(item.Item1, item.Item2));
}
}
}
//Add metadata attributes from func specification
if (_metadataItemFuncs != null)
{
bool isConfigured = type.GetCustomAttributes(typeof(PartMetadataAttribute), false).FirstOrDefault() != null;
if (isConfigured)
{
CompositionTrace.Registration_PartMetadataConventionOverridden(type);
}
else
{
foreach (Tuple <string, Func <Type, object> > item in _metadataItemFuncs)
{
var name = item.Item1;
var value = (item.Item2 != null) ? item.Item2(type) : null;
attributes.Add(new PartMetadataAttribute(name, value));
}
}
}
if (_interfaceExports.Any())
{
if (_typeExportBuilders != null)
{
bool isConfigured = type.GetCustomAttributes(typeof(ExportAttribute), false).FirstOrDefault() != null || MemberHasExportMetadata(type);
if (isConfigured)
{
CompositionTrace.Registration_TypeExportConventionOverridden(type);
}
else
{
foreach (Type iface in type.GetInterfaces())
{
Type underlyingType = iface.UnderlyingSystemType;
if (underlyingType == typeof(IDisposable) || underlyingType == typeof(IPartImportsSatisfiedNotification))
{
continue;
}
// Run through the export specifications see if any match
foreach (Tuple <Predicate <Type>, Action <Type, ExportBuilder> > exportSpecification in _interfaceExports)
{
if (exportSpecification.Item1 != null && exportSpecification.Item1(underlyingType))
{
ExportBuilder exportBuilder = new ExportBuilder();
exportBuilder.AsContractType((Type)iface);
exportSpecification.Item2?.Invoke(iface, exportBuilder);
exportBuilder.BuildAttributes(iface, ref attributes);
}
}
}
}
}
}
return(attributes);
}