public PostgreSqlInvocation ReadInvocation(ReadOnlyMemory <byte> data)
{
// See WriteInvocation for the format
ValidateArraySize(ref data, 2, "Invocation");
// Read excluded Ids
IReadOnlyList <string> excludedConnectionIds = null;
var idCount = MessagePackUtil.ReadArrayHeader(ref data);
if (idCount > 0)
{
var ids = new string[idCount];
for (var i = 0; i < idCount; i++)
{
ids[i] = MessagePackUtil.ReadString(ref data);
}
excludedConnectionIds = ids;
}
// Read payload
var message = ReadSerializedHubMessage(ref data);
return(new PostgreSqlInvocation(message, excludedConnectionIds));
}
// ReSharper disable once ParameterOnlyUsedForPreconditionCheck.Local
private static void ValidateArraySize(ref ReadOnlyMemory <byte> data, int expectedLength, string messageType)
{
var length = MessagePackUtil.ReadArrayHeader(ref data);
if (length < expectedLength)
{
throw new InvalidDataException($"Insufficient items in {messageType} array.");
}
}
public static SerializedHubMessage ReadSerializedHubMessage(ref ReadOnlyMemory <byte> data)
{
var count = MessagePackUtil.ReadMapHeader(ref data);
var serializations = new SerializedMessage[count];
for (var i = 0; i < count; i++)
{
var protocol = MessagePackUtil.ReadString(ref data);
var serialized = MessagePackUtil.ReadBytes(ref data);
serializations[i] = new SerializedMessage(protocol, serialized);
}
return(new SerializedHubMessage(serializations));
}