/// <summary>
/// Helper method to generate a list column info of nested lists
/// </summary>
private static ListColumnInfo GetNestedListColumnInfo(int level, ColumnTypeCode singleType)
{
var columnInfo = new ListColumnInfo();
if (level == 0)
{
columnInfo.ValueTypeCode = singleType;
columnInfo.ValueTypeInfo = null;
}
else
{
columnInfo.ValueTypeCode = ColumnTypeCode.List;
columnInfo.ValueTypeInfo = GetNestedListColumnInfo(level - 1, singleType);
}
return(columnInfo);
}
public ColumnTypeCode GetCqlType(Type type, out IColumnInfo typeInfo)
{
typeInfo = null;
ITypeSerializer typeSerializer;
if (_primitiveSerializers.TryGetValue(type, out typeSerializer))
{
return(typeSerializer.CqlType);
}
if (_customSerializers.Count > 0 && _customSerializers.TryGetValue(type, out typeSerializer))
{
typeInfo = typeSerializer.TypeInfo;
return(typeSerializer.CqlType);
}
if (type.IsArray)
{
IColumnInfo valueTypeInfo;
ColumnTypeCode valueTypeCode = GetCqlType(type.GetElementType(), out valueTypeInfo);
typeInfo = new ListColumnInfo
{
ValueTypeCode = valueTypeCode,
ValueTypeInfo = valueTypeInfo
};
return(ColumnTypeCode.List);
}
if (type.GetTypeInfo().IsGenericType)
{
if (type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
return(GetCqlType(type.GetTypeInfo().GetGenericArguments()[0], out typeInfo));
}
if (typeof(IEnumerable).GetTypeInfo().IsAssignableFrom(type))
{
IColumnInfo valueTypeInfo;
ColumnTypeCode valueTypeCode;
var interfaces = type.GetTypeInfo().GetInterfaces();
if (typeof(IDictionary).GetTypeInfo().IsAssignableFrom(type) &&
interfaces.Any(t => t.GetTypeInfo().IsGenericType&& t.GetGenericTypeDefinition() == typeof(IDictionary <,>)))
{
IColumnInfo keyTypeInfo;
var keyTypeCode = GetCqlType(type.GetTypeInfo().GetGenericArguments()[0], out keyTypeInfo);
valueTypeCode = GetCqlType(type.GetTypeInfo().GetGenericArguments()[1], out valueTypeInfo);
typeInfo = new MapColumnInfo
{
KeyTypeCode = keyTypeCode,
KeyTypeInfo = keyTypeInfo,
ValueTypeCode = valueTypeCode,
ValueTypeInfo = valueTypeInfo
};
return(ColumnTypeCode.Map);
}
if (interfaces.Any(t => t.GetTypeInfo().IsGenericType&& t.GetGenericTypeDefinition() == typeof(ISet <>)))
{
IColumnInfo keyTypeInfo;
var keyTypeCode = GetCqlType(type.GetTypeInfo().GetGenericArguments()[0], out keyTypeInfo);
typeInfo = new SetColumnInfo
{
KeyTypeCode = keyTypeCode,
KeyTypeInfo = keyTypeInfo
};
return(ColumnTypeCode.Set);
}
valueTypeCode = GetCqlType(type.GetTypeInfo().GetGenericArguments()[0], out valueTypeInfo);
typeInfo = new ListColumnInfo
{
ValueTypeCode = valueTypeCode,
ValueTypeInfo = valueTypeInfo
};
return(ColumnTypeCode.List);
}
if (typeof(IStructuralComparable).GetTypeInfo().IsAssignableFrom(type) && type.FullName.StartsWith("System.Tuple"))
{
typeInfo = new TupleColumnInfo
{
Elements = type.GetTypeInfo().GetGenericArguments().Select(t =>
{
IColumnInfo tupleSubTypeInfo;
var dataType = new ColumnDesc
{
TypeCode = GetCqlType(t, out tupleSubTypeInfo),
TypeInfo = tupleSubTypeInfo
};
return(dataType);
}).ToList()
};
return(ColumnTypeCode.Tuple);
}
}
//Determine if its a Udt type
var udtMap = _udtSerializer.GetUdtMap(type);
if (udtMap != null)
{
typeInfo = udtMap.Definition;
return(ColumnTypeCode.Udt);
}
throw new InvalidTypeException("Unknown Cassandra target type for CLR type " + type.FullName);
}
/// <summary>
/// Helper method to generate a list column info of nested lists
/// </summary>
private static ListColumnInfo GetNestedListColumnInfo(int level, ColumnTypeCode singleType)
{
var columnInfo = new ListColumnInfo();
if (level == 0)
{
columnInfo.ValueTypeCode = singleType;
columnInfo.ValueTypeInfo = null;
}
else
{
columnInfo.ValueTypeCode = ColumnTypeCode.List;
columnInfo.ValueTypeInfo = GetNestedListColumnInfo(level - 1, singleType);
}
return columnInfo;
}
public ColumnTypeCode GetCqlType(Type type, out IColumnInfo typeInfo)
{
typeInfo = null;
ITypeSerializer typeSerializer;
if (_primitiveSerializers.TryGetValue(type, out typeSerializer))
{
return typeSerializer.CqlType;
}
if (_customSerializers.Count > 0 && _customSerializers.TryGetValue(type, out typeSerializer))
{
typeInfo = typeSerializer.TypeInfo;
return typeSerializer.CqlType;
}
if (type.IsArray)
{
IColumnInfo valueTypeInfo;
ColumnTypeCode valueTypeCode = GetCqlType(type.GetElementType(), out valueTypeInfo);
typeInfo = new ListColumnInfo
{
ValueTypeCode = valueTypeCode,
ValueTypeInfo = valueTypeInfo
};
return ColumnTypeCode.List;
}
if (type.IsGenericType)
{
if (type.GetGenericTypeDefinition() == typeof(Nullable<>))
{
return GetCqlType(type.GetGenericArguments()[0], out typeInfo);
}
if (typeof(IEnumerable).IsAssignableFrom(type))
{
IColumnInfo valueTypeInfo;
ColumnTypeCode valueTypeCode;
var interfaces = type.GetInterfaces();
if (typeof(IDictionary).IsAssignableFrom(type) &&
interfaces.Any(t => t.IsGenericType && t.GetGenericTypeDefinition() == typeof(IDictionary<,>)))
{
IColumnInfo keyTypeInfo;
var keyTypeCode = GetCqlType(type.GetGenericArguments()[0], out keyTypeInfo);
valueTypeCode = GetCqlType(type.GetGenericArguments()[1], out valueTypeInfo);
typeInfo = new MapColumnInfo
{
KeyTypeCode = keyTypeCode,
KeyTypeInfo = keyTypeInfo,
ValueTypeCode = valueTypeCode,
ValueTypeInfo = valueTypeInfo
};
return ColumnTypeCode.Map;
}
if (interfaces.Any(t => t.IsGenericType && t.GetGenericTypeDefinition() == typeof(ISet<>)))
{
IColumnInfo keyTypeInfo;
var keyTypeCode = GetCqlType(type.GetGenericArguments()[0], out keyTypeInfo);
typeInfo = new SetColumnInfo
{
KeyTypeCode = keyTypeCode,
KeyTypeInfo = keyTypeInfo
};
return ColumnTypeCode.Set;
}
valueTypeCode = GetCqlType(type.GetGenericArguments()[0], out valueTypeInfo);
typeInfo = new ListColumnInfo
{
ValueTypeCode = valueTypeCode,
ValueTypeInfo = valueTypeInfo
};
return ColumnTypeCode.List;
}
if (typeof(IStructuralComparable).IsAssignableFrom(type) && type.FullName.StartsWith("System.Tuple"))
{
typeInfo = new TupleColumnInfo
{
Elements = type.GetGenericArguments().Select(t =>
{
IColumnInfo tupleSubTypeInfo;
var dataType = new ColumnDesc
{
TypeCode = GetCqlType(t, out tupleSubTypeInfo),
TypeInfo = tupleSubTypeInfo
};
return dataType;
}).ToList()
};
return ColumnTypeCode.Tuple;
}
}
//Determine if its a Udt type
var udtMap = _udtSerializer.GetUdtMap(type);
if (udtMap != null)
{
typeInfo = udtMap.Definition;
return ColumnTypeCode.Udt;
}
throw new InvalidTypeException("Unknown Cassandra target type for CLR type " + type.FullName);
}
