/// <summary>
/// Adds the type to the known types if the type is serializable.
/// </summary>
/// <param name="typeToAdd">The type to add.</param>
/// <param name="serializerTypeInfo">The serializer type info.</param>
/// <returns><c>true</c> if the type is serializable; otherwise <c>false</c>.</returns>
protected virtual bool AddTypeToKnownTypesIfSerializable(Type typeToAdd, XmlSerializerTypeInfo serializerTypeInfo)
{
// Collection first, this collection of types is smaller so if we have a hit, we exit sooner
if (serializerTypeInfo.IsCollectionAlreadyHandled(typeToAdd))
{
return(true);
}
if (serializerTypeInfo.ContainsKnownType(typeToAdd))
{
return(true);
}
serializerTypeInfo.AddCollectionAsHandled(typeToAdd);
// If this is a special collection type (generic), then we need to make sure that if the inner type is
// an interface, we do not add it again if already added.
// See this issue http://catel.codeplex.com/workitem/7167
if (serializerTypeInfo.IsSpecialCollectionType(typeToAdd))
{
// Always ignore
return(false);
}
return(serializerTypeInfo.AddKnownType(typeToAdd));
}
/// <summary>
/// Adds the type to the known types if the type is serializable.
/// </summary>
/// <param name="typeToAdd">The type to add.</param>
/// <param name="serializerTypeInfo">The serializer type info.</param>
/// <returns><c>true</c> if the type is serializable; otherwise <c>false</c>.</returns>
protected virtual bool AddTypeToKnownTypesIfSerializable(Type typeToAdd, XmlSerializerTypeInfo serializerTypeInfo)
{
// Collection first, this collection of types is smaller so if we have a hit, we exit sooner
if (serializerTypeInfo.IsCollectionAlreadyHandled(typeToAdd))
{
return(true);
}
if (serializerTypeInfo.ContainsKnownType(typeToAdd))
{
return(true);
}
serializerTypeInfo.AddCollectionAsHandled(typeToAdd);
// If this is a special collection type (generic), then we need to make sure that if the inner type is
// an interface, we do not add it again if already added.
// See this issue http://catel.codeplex.com/workitem/7167
if (serializerTypeInfo.IsSpecialCollectionType(typeToAdd))
{
// Always ignore as a test
return(false);
// TODO: Also check interfaces
// // It might be a base type, loop all
// var baseType = typeToAdd;
// while (baseType != null)
// {
// if (baseType.IsGenericTypeEx())
// {
// if (baseType.GetGenericArgumentsEx()[0].IsInterfaceEx())
// {
// var genericTypeDefinition = baseType.GetGenericTypeDefinitionEx();
// var allPossibleMatchingTypes = (from type in serializerTypeInfo.SpecialGenericCollectionTypes
// where type.GetGenericTypeDefinitionEx() == genericTypeDefinition
// select type).ToList();
// if (allPossibleMatchingTypes.Count > 0)
// {
// Log.Debug("Skipping type '{0}' because there already exists such a type which does the same", typeToAdd.GetSafeFullName());
// return false;
// }
// }
// }
// baseType = baseType.GetBaseTypeEx();
// }
}
return(serializerTypeInfo.AddKnownType(typeToAdd));
}
/// <summary>
/// Adds the type to the known types if the type is serializable.
/// </summary>
/// <param name="typeToAdd">The type to add.</param>
/// <param name="serializerTypeInfo">The serializer type info.</param>
/// <returns><c>true</c> if the type is serializable; otherwise <c>false</c>.</returns>
protected virtual bool AddTypeToKnownTypesIfSerializable(Type typeToAdd, XmlSerializerTypeInfo serializerTypeInfo)
{
// Collection first, this collection of types is smaller so if we have a hit, we exit sooner
if (serializerTypeInfo.IsCollectionAlreadyHandled(typeToAdd))
{
return true;
}
if (serializerTypeInfo.ContainsKnownType(typeToAdd))
{
return true;
}
serializerTypeInfo.AddCollectionAsHandled(typeToAdd);
// If this is a special collection type (generic), then we need to make sure that if the inner type is
// an interface, we do not add it again if already added.
// See this issue http://catel.codeplex.com/workitem/7167
if (serializerTypeInfo.IsSpecialCollectionType(typeToAdd))
{
// Always ignore
return false;
}
return serializerTypeInfo.AddKnownType(typeToAdd);
}
/// <summary>
/// Gets the known types inside the specific type.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="serializerTypeInfo">The serializer type info.</param>
/// <param name="resolveAbstractClassesAndInterfaces">if set to <c>true</c> [resolve abstract classes and interfaces].</param>
/// <returns>Array of <see cref="Type" /> that are found in the object type.</returns>
protected virtual void GetKnownTypes(Type type, XmlSerializerTypeInfo serializerTypeInfo, bool resolveAbstractClassesAndInterfaces = true)
{
if (ShouldTypeBeIgnored(type, serializerTypeInfo))
{
return;
}
#if ENABLE_DETAILED_LOGGING
Log.Debug("Getting known types for '{0}'", type.GetSafeFullName());
#endif
GetKnownTypesForItems(type, serializerTypeInfo);
// If this is an interface or abstract, we need to retieve all items that might possible implement or derive
var isInterface = type.IsInterfaceEx();
var isAbstract = type.IsAbstractEx();
if (isInterface || isAbstract)
{
if (!serializerTypeInfo.IsTypeAlreadyHandled(type) && resolveAbstractClassesAndInterfaces)
{
// Interfaces / abstract classes are not a type, and in fact a LOT of types can be added (in fact every object implementing
// the interface). For serialization, this is not a problem (we know the exact type), but for deserialization this IS an
// issue because we should expect EVERY type that implements the type in the whole AppDomain.
// This is huge performance hit, but it's the cost for dynamic easy on-the-fly serialization in WPF and Silverlight. Luckily
// we already implemented caching.
// Don't check this type again in children checks
serializerTypeInfo.AddTypeAsHandled(type);
#if ENABLE_DETAILED_LOGGING
Log.Debug("Type is an interface / abstract class, checking all types implementing / deriving");
#endif
if (isInterface)
{
var typesImplementingInterface = TypeCache.GetTypesImplementingInterface(type);
foreach (var typeImplementingInterface in typesImplementingInterface)
{
if (typeImplementingInterface != type)
{
GetKnownTypes(typeImplementingInterface, serializerTypeInfo);
}
}
}
if (isAbstract)
{
var typesDerivingFromClass = TypeCache.GetTypes(type.IsAssignableFromEx);
foreach (var typeDerivingFromClass in typesDerivingFromClass)
{
if (typeDerivingFromClass != type)
{
GetKnownTypes(typeDerivingFromClass, serializerTypeInfo);
}
}
}
#if ENABLE_DETAILED_LOGGING
Log.Debug("Finished checking all types implementing / deriving");
#endif
}
// The interface itself is ignored
return;
}
if (serializerTypeInfo.IsSpecialCollectionType(type) && !type.IsInterfaceEx())
{
#if ENABLE_DETAILED_LOGGING
Log.Debug("Type is a special collection type, adding it to the array of known types");
#endif
AddTypeToKnownTypesIfSerializable(type, serializerTypeInfo);
}
// Fix generics
if (type.GetSafeFullName().StartsWith("System."))
{
var genericArguments = type.GetGenericArgumentsEx();
foreach (var genericArgument in genericArguments)
{
#if ENABLE_DETAILED_LOGGING
Log.Debug("Retrieving known types for generic argument '{0}' of '{1}'", genericArgument.GetSafeFullName(), type.GetSafeFullName());
#endif
GetKnownTypes(genericArgument, serializerTypeInfo);
}
return;
}
if (!AddTypeToKnownTypesIfSerializable(type, serializerTypeInfo))
{
serializerTypeInfo.AddTypeAsHandled(type);
}
AddTypeMembers(type, serializerTypeInfo);
// If this isn't the base type, check that as well
var baseType = type.GetBaseTypeEx();
if (baseType != null)
{
#if ENABLE_DETAILED_LOGGING
Log.Debug("Checking base type of '{0}' for known types", type.GetSafeFullName());
#endif
if (baseType.FullName != null)
{
GetKnownTypes(baseType, serializerTypeInfo);
}
else
{
serializerTypeInfo.AddTypeAsHandled(baseType);
}
}
// Last but not least, check if the type is decorated with KnownTypeAttributes
var knowTypesByAttributes = GetKnownTypesViaAttributes(type);
if (knowTypesByAttributes.Length > 0)
{
#if ENABLE_DETAILED_LOGGING
Log.Debug("Found {0} additional known types for type '{1}'", knowTypesByAttributes.Length, type.GetSafeFullName());
#endif
foreach (var knownTypeByAttribute in knowTypesByAttributes)
{
var attributeType = knownTypeByAttribute;
var attributeTypeFullName = attributeType.GetSafeFullName();
if (attributeTypeFullName != null)
{
GetKnownTypes(knownTypeByAttribute, serializerTypeInfo);
}
else
{
serializerTypeInfo.AddTypeAsHandled(attributeType);
}
}
}
}
/// <summary>
/// Adds the type to the known types if the type is serializable.
/// </summary>
/// <param name="typeToAdd">The type to add.</param>
/// <param name="serializerTypeInfo">The serializer type info.</param>
/// <returns><c>true</c> if the type is serializable; otherwise <c>false</c>.</returns>
protected virtual bool AddTypeToKnownTypesIfSerializable(Type typeToAdd, XmlSerializerTypeInfo serializerTypeInfo)
{
// Collection first, this collection of types is smaller so if we have a hit, we exit sooner
if (serializerTypeInfo.IsCollectionAlreadyHandled(typeToAdd))
{
return true;
}
if (serializerTypeInfo.ContainsKnownType(typeToAdd))
{
return true;
}
serializerTypeInfo.AddCollectionAsHandled(typeToAdd);
// If this is a special collection type (generic), then we need to make sure that if the inner type is
// an interface, we do not add it again if already added.
// See this issue http://catel.codeplex.com/workitem/7167
if (serializerTypeInfo.IsSpecialCollectionType(typeToAdd))
{
// Always ignore as a test
return false;
// TODO: Also check interfaces
// // It might be a base type, loop all
// var baseType = typeToAdd;
// while (baseType != null)
// {
// if (baseType.IsGenericTypeEx())
// {
// if (baseType.GetGenericArgumentsEx()[0].IsInterfaceEx())
// {
// var genericTypeDefinition = baseType.GetGenericTypeDefinitionEx();
// var allPossibleMatchingTypes = (from type in serializerTypeInfo.SpecialGenericCollectionTypes
// where type.GetGenericTypeDefinitionEx() == genericTypeDefinition
// select type).ToList();
// if (allPossibleMatchingTypes.Count > 0)
// {
// Log.Debug("Skipping type '{0}' because there already exists such a type which does the same", typeToAdd.GetSafeFullName());
// return false;
// }
// }
// }
// baseType = baseType.GetBaseTypeEx();
// }
}
return serializerTypeInfo.AddKnownType(typeToAdd);
}
/// <summary>
/// Gets the known types inside the specific type.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="serializerTypeInfo">The serializer type info.</param>
/// <returns>Array of <see cref="Type"/> that are found in the object type.</returns>
protected virtual void GetKnownTypes(Type type, XmlSerializerTypeInfo serializerTypeInfo)
{
if (ShouldTypeBeIgnored(type, serializerTypeInfo))
{
return;
}
Log.Debug("Getting known types for '{0}'", type.GetSafeFullName());
// If this is an interface, HOUSTON, WE HAVE A PROBLEM
if (type.IsInterfaceEx())
{
if (!serializerTypeInfo.IsTypeAlreadyHandled(type))
{
Log.Debug("Type is an interface, checking all types deriving from this interface");
// Don't check this interface again in children checks
serializerTypeInfo.AddTypeAsHandled(type);
// Interfaces are not a type, and in fact a LOT of types can be added (in fact every object implementing the interface). For
// serialization, this is not a problem (we know the exact type), but for deserialization this IS an issue because we should
// expect EVERY type that implements the type in the whole AppDomain.
// This is huge performance hit, but it's the cost for dynamic easy on-the-fly serialization in WPF and Silverlight. Luckily
// we already implemented caching.
var typesDerivingFromInterface = TypeCache.GetTypes(t => t.ImplementsInterfaceEx(type));
foreach (var typeDerivingFromInterface in typesDerivingFromInterface)
{
if (typeDerivingFromInterface != type)
{
GetKnownTypes(typeDerivingFromInterface, serializerTypeInfo);
}
}
Log.Debug("Finished checking all types deriving from this interface");
}
// The interface itself is ignored
return;
}
if (serializerTypeInfo.IsSpecialCollectionType(type) && !type.IsInterfaceEx())
{
Log.Debug("Type is a special collection type, adding it to the array of known types");
AddTypeToKnownTypesIfSerializable(type, serializerTypeInfo);
}
// Fix generics
if (type.GetSafeFullName().StartsWith("System."))
{
var genericArguments = type.GetGenericArgumentsEx();
foreach (var genericArgument in genericArguments)
{
Log.Debug("Retrieving known types for generic argument '{0}' of '{1}'", genericArgument.GetSafeFullName(), type.GetSafeFullName());
GetKnownTypes(genericArgument, serializerTypeInfo);
}
return;
}
if (!AddTypeToKnownTypesIfSerializable(type, serializerTypeInfo))
{
serializerTypeInfo.AddTypeAsHandled(type);
}
AddTypeMembers(type, serializerTypeInfo);
// If this isn't the base type, check that as well
var baseType = type.GetBaseTypeEx();
if (baseType != null)
{
Log.Debug("Checking base type of '{0}' for known types", type.GetSafeFullName());
if (baseType.FullName != null)
{
GetKnownTypes(baseType, serializerTypeInfo);
}
else
{
serializerTypeInfo.AddTypeAsHandled(baseType);
}
}
// Last but not least, check if the type is decorated with KnownTypeAttributes
var knowTypesByAttributes = GetKnownTypesViaAttributes(type);
if (knowTypesByAttributes.Length > 0)
{
Log.Debug("Found {0} additional known types for type '{1}'", knowTypesByAttributes.Length, type.GetSafeFullName());
foreach (var knownTypeByAttribute in knowTypesByAttributes)
{
var attributeType = knownTypeByAttribute;
if (attributeType.FullName != null)
{
GetKnownTypes(knownTypeByAttribute, serializerTypeInfo);
}
else
{
serializerTypeInfo.AddTypeAsHandled(attributeType);
}
}
}
}
/// <summary>
/// Gets the known types inside the specific type.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="serializerTypeInfo">The serializer type info.</param>
/// <returns>Array of <see cref="Type"/> that are found in the object type.</returns>
protected virtual void GetKnownTypes(Type type, XmlSerializerTypeInfo serializerTypeInfo)
{
if (ShouldTypeBeIgnored(type, serializerTypeInfo))
{
return;
}
Log.Debug("Getting known types for '{0}'", type.GetSafeFullName());
GetKnownTypesForItems(type, serializerTypeInfo);
// If this is an interface or abstract, we need to retieve all items that might possible implement or derive
bool isInterface = type.IsInterfaceEx();
bool isAbstract = type.IsAbstractEx();
if (isInterface || isAbstract)
{
if (!serializerTypeInfo.IsTypeAlreadyHandled(type))
{
// Interfaces / abstract classes are not a type, and in fact a LOT of types can be added (in fact every object implementing
// the interface). For serialization, this is not a problem (we know the exact type), but for deserialization this IS an
// issue because we should expect EVERY type that implements the type in the whole AppDomain.
// This is huge performance hit, but it's the cost for dynamic easy on-the-fly serialization in WPF and Silverlight. Luckily
// we already implemented caching.
// Don't check this type again in children checks
serializerTypeInfo.AddTypeAsHandled(type);
Log.Debug("Type is an interface / abstract class, checking all types implementing / deriving");
if (isInterface)
{
var typesImplementingInterface = TypeCache.GetTypesImplementingInterface(type);
//var typesImplementingInterface = TypeCache.GetTypes(t => t.ImplementsInterfaceEx(type));
foreach (var typeImplementingInterface in typesImplementingInterface)
{
if (typeImplementingInterface != type)
{
GetKnownTypes(typeImplementingInterface, serializerTypeInfo);
}
}
}
if (isAbstract)
{
var typesDerivingFromClass = TypeCache.GetTypes(type.IsAssignableFromEx);
foreach (var typeDerivingFromClass in typesDerivingFromClass)
{
if (typeDerivingFromClass != type)
{
GetKnownTypes(typeDerivingFromClass, serializerTypeInfo);
}
}
}
Log.Debug("Finished checking all types implementing / deriving");
}
// The interface itself is ignored
return;
}
if (serializerTypeInfo.IsSpecialCollectionType(type) && !type.IsInterfaceEx())
{
Log.Debug("Type is a special collection type, adding it to the array of known types");
AddTypeToKnownTypesIfSerializable(type, serializerTypeInfo);
}
// Fix generics
if (type.GetSafeFullName().StartsWith("System."))
{
var genericArguments = type.GetGenericArgumentsEx();
foreach (var genericArgument in genericArguments)
{
Log.Debug("Retrieving known types for generic argument '{0}' of '{1}'", genericArgument.GetSafeFullName(), type.GetSafeFullName());
GetKnownTypes(genericArgument, serializerTypeInfo);
}
return;
}
if (!AddTypeToKnownTypesIfSerializable(type, serializerTypeInfo))
{
serializerTypeInfo.AddTypeAsHandled(type);
}
AddTypeMembers(type, serializerTypeInfo);
// If this isn't the base type, check that as well
var baseType = type.GetBaseTypeEx();
if (baseType != null)
{
Log.Debug("Checking base type of '{0}' for known types", type.GetSafeFullName());
if (baseType.FullName != null)
{
GetKnownTypes(baseType, serializerTypeInfo);
}
else
{
serializerTypeInfo.AddTypeAsHandled(baseType);
}
}
// Last but not least, check if the type is decorated with KnownTypeAttributes
var knowTypesByAttributes = GetKnownTypesViaAttributes(type);
if (knowTypesByAttributes.Length > 0)
{
Log.Debug("Found {0} additional known types for type '{1}'", knowTypesByAttributes.Length, type.GetSafeFullName());
foreach (var knownTypeByAttribute in knowTypesByAttributes)
{
var attributeType = knownTypeByAttribute;
var attributeTypeFullName = attributeType.GetSafeFullName();
if (attributeTypeFullName != null)
{
GetKnownTypes(knownTypeByAttribute, serializerTypeInfo);
}
else
{
serializerTypeInfo.AddTypeAsHandled(attributeType);
}
}
}
}
