protected string ReadStringFromStream(MessageStream input)
{
ushort len = ReadUshortFromStream(input);
byte[] data = input.readBytes(len);
UTF8Encoding enc = new UTF8Encoding();
return(enc.GetString(data, 0, data.Length));
}
protected override void readMessage(MessageStream input, int msgLength)
{
base.readMessage(input, msgLength);
while (input.Size() > 0)
{
String topic = ReadStringFromStream(input);
//System.out.println("Topic : " + topic);
topics.Add(topic);
topicQoSs.Add((QoS)input.readByte());
}
}
protected override void readMessage(MessageStream input, int msgLength)
{
short msb = input.readByte();
byte lsb = input.readByte();
int id = msb << 8;
id += lsb;
setMessageId(id);
// setMessageId((short)(input.readByte() >> 8 + input.readByte()));
}
protected override void readMessage(MessageStream input, int msgLength)
{
base.readMessage(input, msgLength);
int pos = 2;
while (pos < msgLength)
{
QoS qos = (QoS)(input.readByte());
addQoS(qos);
pos++;
}
}
protected override void readMessage(MessageStream input, int msgLength)
{
int pos = 0;
topic = ReadStringFromStream(input);
pos += FormatUtil.toMQttString(topic).Length;
if (getQos() != QoS.AT_MOST_ONCE)
{
base.readMessage(input, msgLength);
pos += 2;
}
int payloadSize = (msgLength - pos);
data = input.readBytes(payloadSize);
}
protected override void readMessage(MessageStream input, int msgLength)
{
ReadStringFromStream(input); //PROTOCOL_ID
input.readByte(); // PROTOCOL_VERSION
byte flags = input.readByte(); //flags
keepAlive = (short)ReadUshortFromStream(input);
clientId = ReadStringFromStream(input);
if (((flags & 0x04) != 0))
{
willTopic = ReadStringFromStream(input);
will = ReadStringFromStream(input);
}
username = ((flags & 0x80) == 0) ? null : ReadStringFromStream(input);
password = ((flags & 0x40) == 0) ? null : ReadStringFromStream(input);
retainWill = ((flags & 0x20) > 0);
willQoS = (QoS)(Convert.ToUInt16(flags & 0x18) >> 3);
}
protected override void readMessage(MessageStream input, int msgLength)
{
if (msgLength != 2)
{
// throw new IllegalStateException("Message Length must be 2 for CONNACK. Current value: " + msgLength);
}
// Ignore first byte
input.readByte();
int result = input.readByte();
switch (result)
{
case 0:
status = ConnectionStatus.ACCEPTED;
break;
case 1:
status = ConnectionStatus.UNACCEPTABLE_PROTOCOL_VERSION;
break;
case 2:
status = ConnectionStatus.IDENTIFIER_REJECTED;
break;
case 3:
status = ConnectionStatus.SERVER_UNAVAILABLE;
break;
case 4:
status = ConnectionStatus.BAD_USERNAME_OR_PASSWORD;
break;
case 5:
status = ConnectionStatus.NOT_AUTHORIZED;
break;
default:
throw new NotSupportedException("Unsupported CONNACK code: " + result);
}
}
/// <summary>
/// composes a message object from messagestream. throws exception if the message is incomplete in buffer as of now.
/// </summary>
/// <param name="input"></param>
/// <param name="flags">flags to be restored in message stream in case message is incomplete as of now</param>
public void read(MessageStream input)
{
int msgLength = input.readMsgLength();
readMessage(input, msgLength);
}
protected ushort ReadUshortFromStream(MessageStream input)
{
return((ushort)((input.readByte() << 8) + input.readByte()));
}
protected virtual void readMessage(MessageStream input, int msgLength)
{
}
