void PopulateTypes(IEnumerable <Type> knownTypes)
{
if (known_types == null)
{
known_types = new KnownTypeCollection();
}
if (knownTypes != null)
{
foreach (Type t in knownTypes)
{
known_types.Add(t);
}
}
Type elementType = type;
if (type.HasElementType)
{
elementType = type.GetElementType();
}
/* Get all KnownTypeAttribute-s, including inherited ones */
object [] attrs = elementType.GetCustomAttributes(typeof(KnownTypeAttribute), true);
for (int i = 0; i < attrs.Length; i++)
{
KnownTypeAttribute kt = (KnownTypeAttribute)attrs [i];
foreach (var t in kt.GetTypes(elementType))
{
known_types.Add(t);
}
}
}
void RegisterTypeAsKnown(Type type)
{
if (known_types.Contains(type))
{
return;
}
Type elementType = type;
if (type.HasElementType)
{
elementType = type.GetElementType();
}
known_types.Add(elementType);
/* Get all KnownTypeAttribute-s, including inherited ones */
object [] attrs = elementType.GetCustomAttributes(typeof(KnownTypeAttribute), true);
for (int i = 0; i < attrs.Length; i++)
{
KnownTypeAttribute kt = (KnownTypeAttribute)attrs [i];
foreach (var t in kt.GetTypes(elementType))
{
RegisterTypeAsKnown(t);
}
}
}
private SharedContractMap RegisterContract(Type type)
{
QName qname = GetContractQName(type);
if (qname == null)
{
return(null);
}
CheckStandardQName(qname);
if (FindUserMap(qname) != null)
{
throw new InvalidOperationException(String.Format("There is already a registered type for XML name {0}", qname));
}
SharedContractMap ret = new SharedContractMap(type, qname, this);
contracts.Add(ret);
ret.Initialize();
object [] attrs = type.GetCustomAttributes(typeof(KnownTypeAttribute), true);
for (int i = 0; i < attrs.Length; i++)
{
KnownTypeAttribute kt = (KnownTypeAttribute)attrs [i];
TryRegister(kt.Type);
}
return(ret);
}
static IEnumerable <Type> GetKnownTypesByReadingKnownTypeAttributes(Type typeThatHasTheKnownTypeAttributes)
{
foreach (Attribute attr in typeThatHasTheKnownTypeAttributes.GetCustomAttributes(typeof(KnownTypeAttribute), true))
{
if (attr is KnownTypeAttribute)
{
KnownTypeAttribute knownTypeAttribute = (KnownTypeAttribute)attr;
//------------------------------------
// Return the type defined using the [KnownType(type)] constructor overload:
//------------------------------------
if (knownTypeAttribute.Type != null)
{
yield return(knownTypeAttribute.Type);
}
//------------------------------------
// Return the types returned by the method specified using the [KnownType(methodName)] constructor overload:
//------------------------------------
if (!string.IsNullOrWhiteSpace(knownTypeAttribute.MethodName))
{
string methodName = knownTypeAttribute.MethodName;
MethodInfo methodInfo = typeThatHasTheKnownTypeAttributes.GetMethod(methodName, BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public);
if (methodInfo != null)
{
var types = methodInfo.Invoke(null, null);
if (types is IEnumerable <Type> )
{
foreach (Type type in (IEnumerable <Type>)types)
{
yield return(type);
}
}
}
else
{
throw new InvalidDataContractException(
string.Format(
"KnownTypeAttribute attribute on type '{0}' specifies a method named '{1}' to provide known types. Static method '{1}()' was not found on this type. Ensure that the method exists and is marked as static.",
typeThatHasTheKnownTypeAttributes.ToString(),
methodName
));
}
}
}
}
}
private SharedContractMap RegisterContract(Type type)
{
QName qname = GetContractQName(type);
if (qname == null)
{
return(null);
}
CheckStandardQName(qname);
if (FindUserMap(qname) != null)
{
throw new InvalidOperationException(String.Format("There is already a registered type for XML name {0}", qname));
}
SharedContractMap ret = new SharedContractMap(type, qname, this);
contracts.Add(ret);
ret.Initialize();
if (type.BaseType != typeof(object))
{
TryRegister(type.BaseType);
if (!FindUserMap(type.BaseType).IsContractAllowedType)
{
throw new InvalidDataContractException(String.Format("To be serializable by data contract, type '{0}' cannot inherit from non-contract and non-Serializable type '{1}'", type, type.BaseType));
}
}
object [] attrs = type.GetCustomAttributes(typeof(KnownTypeAttribute), true);
for (int i = 0; i < attrs.Length; i++)
{
KnownTypeAttribute kt = (KnownTypeAttribute)attrs [i];
foreach (var t in kt.GetTypes(type))
{
TryRegister(t);
}
}
return(ret);
}
