public static HandshakeExtension Parse(string nameAndProperties)
{
var pos = nameAndProperties.IndexOf(':');
if (pos == -1)
{
return(new HandshakeExtension(nameAndProperties));
}
var extension = new HandshakeExtension(nameAndProperties.Substring(0, pos));
var properties = nameAndProperties.Substring(pos + 1).Split(',');
foreach (var property in properties)
{
pos = property.IndexOf('=');
if (pos == -1)
{
throw new FormatException(
"Extension was not formatted correctly, missing equal sign for a property. Extension: " +
nameAndProperties);
}
var key = property.Substring(0, pos);
var value = Uri.UnescapeDataString(property.Substring(pos + 1));
extension.Properties.Add(key, value);
}
return(extension);
}
public bool IsSameExtension(HandshakeExtension other)
{
if (other == null)
{
throw new ArgumentNullException("other");
}
return(Name.Equals(other.Name));
}
public void ResetRead()
{
_state = HandshakeFrameState.VersionMajor;
_receiveStateBytesLeft = 1; //identity length
_receiveBufferOffset = 0;
_receiveStateLength = -1;
RequiredExtensions = new HandshakeExtension[0];
OptionalExtensions = new HandshakeExtension[0];
Identity = "";
}
public IAckSender CreateAckSender(IConnection connection, byte extensionId, HandshakeExtension extProperties)
{
var msgsPerAck = MessagesPerAck;
if (extProperties.Properties.ContainsKey("MessagesPerAck"))
msgsPerAck = int.Parse(extProperties.Properties["MessagesPerAck"]);
var expire = AckExpireTime;
if (extProperties.Properties.ContainsKey("AckExpireTime"))
expire = TimeSpan.FromMilliseconds(int.Parse(extProperties.Properties["AckExpireTime"]));
return new AckSender(connection, extensionId)
{
Threshold = msgsPerAck,
TimeoutBeforeSendingAck = expire
};
}
public IAckReceiver CreateAckReceiver(IConnection connection, byte extensionId,
Action<MessageFrame> deliverMessageMethod, HandshakeExtension extProperties)
{
var msgsPerAck = MessagesPerAck;
if (extProperties.Properties.ContainsKey("MessagesPerAck"))
msgsPerAck = int.Parse(extProperties.Properties["MessagesPerAck"]);
var expire = AckExpireTime;
if (extProperties.Properties.ContainsKey("AckExpireTime"))
expire = TimeSpan.FromMilliseconds(int.Parse(extProperties.Properties["AckExpireTime"]));
return new AckReceiver(connection, deliverMessageMethod, MessagesPerAck)
{
TimeoutBeforeResendingMessage = expire.Add(TimeSpan.FromMilliseconds(20)) //for network latency
};
}
public static HandshakeExtension Parse(string nameAndProperties)
{
var pos = nameAndProperties.IndexOf(':');
if (pos == -1)
{
return new HandshakeExtension(nameAndProperties);
}
var extension = new HandshakeExtension(nameAndProperties.Substring(0, pos));
var properties = nameAndProperties.Substring(pos + 1).Split(',');
foreach (var property in properties)
{
pos = property.IndexOf('=');
if (pos == -1)
throw new FormatException(
"Extension was not formatted correctly, missing equal sign for a property. Extension: " +
nameAndProperties);
var key = property.Substring(0, pos);
var value = Uri.UnescapeDataString(property.Substring(pos + 1));
extension.Properties.Add(key, value);
}
return extension;
}
protected bool Equals(HandshakeExtension other)
{
return(string.Equals(Name, other.Name));
}
public void Parse(HandshakeExtension info)
{
}
public HandshakeExtension Negotiate(HandshakeExtension remoteEndPointExtension)
{
return new HandshakeExtension(Name);
}
public bool IsSameExtension(HandshakeExtension other)
{
if (other == null) throw new ArgumentNullException("other");
return Name.Equals(other.Name);
}
protected bool Equals(HandshakeExtension other)
{
return string.Equals(Name, other.Name);
}
public HandshakeFrame()
{
RequiredExtensions = new HandshakeExtension[0];
OptionalExtensions = new HandshakeExtension[0];
Identity = "";
}
public void ResetRead()
{
_state = HandshakeFrameState.VersionMajor;
_receiveStateBytesLeft = 1; //identity length
_receiveBufferOffset = 0;
_receiveStateLength = -1;
RequiredExtensions = new HandshakeExtension[0];
OptionalExtensions = new HandshakeExtension[0];
Identity = "";
}
public HandshakeFrame()
{
RequiredExtensions = new HandshakeExtension[0];
OptionalExtensions = new HandshakeExtension[0];
Identity = "";
}
public HandshakeExtension Negotiate(HandshakeExtension remoteEndPointExtension)
{
var frame = new HandshakeExtension(Name);
if (remoteEndPointExtension.Properties.ContainsKey("MessagesPerAck"))
{
var value = Math.Max(int.Parse(remoteEndPointExtension.Properties["MessagesPerAck"]), MessagesPerAck);
frame.Properties.Add("MessagesPerAck", value.ToString());
}
if (remoteEndPointExtension.Properties.ContainsKey("AckExpireTime"))
{
var value = Math.Min(int.Parse(remoteEndPointExtension.Properties["AckExpireTime"]),
AckExpireTime.TotalMilliseconds);
frame.Properties.Add("AckExpireTime", value.ToString());
}
return frame;
}
