private string SendMessage(string msg, UpDevice target, bool waitForResponse = true)
{
UpNetworkInterface netInt = GetAppropriateInterface(target);
string networkAddress = netInt.networkAddress;
string networkType = netInt.netType;
ClientConnection con = OpenActiveConnection(networkAddress, networkType);
if (con == null)
{
logger.LogWarning("Not possible to stablish a connection with '" + networkAddress + "' of type '" + networkType + "'.");
return(null);
}
try
{
byte[] data = Encoding.UTF8.GetBytes(msg);
con.Write(data, 0, data.Length);
// Gets response.
string response = null;
if (waitForResponse)
{
data = con.Read();
if (data != null)
{
response = Encoding.UTF8.GetString(data);
if (response.Trim().Length == 0)
{
response = null;
}
}
}
con.Close();
return(response);
}
catch (System.Exception)
{
if (con.connected)
{
con.Close();
}
throw;
}
}
private void ConnectionThread()
{
ClientConnection con = null;
while (gatewayServer.running)
{
try
{
// This blocks the thread until some client connects...
con = gatewayServer.gateway.OpenPassiveConnection(device.networkDeviceName, device.networkDeviceType);
if (con != null)
{
gatewayServer.PushLog(
"Connection received from an ubiquitos-client device: '" +
con.clientDevice.networkDeviceName + "' on '" + con.clientDevice.networkDeviceType + "'.");
}
else
{
throw new System.Exception("Couldn't establish connection to client.");
}
if (con.connected)
{
StringBuilder builder = new StringBuilder();
byte[] data = con.Read();
if ((data != null) && (data.Length > 0))
{
int read = data.Length;
string[] msgs = Encoding.UTF8.GetString(data, 0, read).Split('\n');
int last = msgs.Length - 1;
int i = 0;
byte lastByte = data[read - 1];
// Were we waiting for the rest of a message?
if (builder.Length > 0)
{
builder.Append(msgs[i++]);
if ((msgs.Length > 1) || (lastByte == '\n'))
{
gatewayServer.HandleMessage(builder.ToString(), con);
builder.Length = 0;
}
}
// Processes intermediate messages...
for (; i < last; ++i)
{
gatewayServer.HandleMessage(msgs[i], con);
}
// Processes the last chunk...
if (i == last)
{
builder.Append(msgs[i]);
if (lastByte == '\n')
{
gatewayServer.HandleMessage(builder.ToString(), con);
builder.Length = 0;
}
}
}
con.Close();
}
}
catch (System.Threading.ThreadAbortException)
{
if ((con != null) && (con.connected))
{
con.Close();
}
return;
}
catch (System.Exception e)
{
if ((con != null) && (con.connected))
{
con.Close();
}
gatewayServer.PushLog("Failed to handle ubiquitos-smartspace connection. ", e);
}
}
}