/// <summary>
///
/// </summary>
///
public void Unsubscribe(string typeOfChannel)
{
PerfTiming perfTimer1 = new PerfTiming();
perfTimer1.Start();
// Validate current state of Reader API
if (!RfReaderApi.IsValid)
{
throw new RfReaderApiInvalidModeException();
}
if (RfReaderApi.TER == typeOfChannel || RfReaderApi.ALARM == typeOfChannel || RfReaderApi.ALL == typeOfChannel)
{
UnSubscribeChannelListener(typeOfChannel);
}
else
{
throw new RfReaderApiException(RfReaderApiException.ResultCode_System, RfReaderApiException.Error_InvalidParameter);
}
// Send unsubscribe command to ReaderService
// We do this deliberately after turning down our channels in order not
// to prevent channel shutdowns if exception during unsubscribe commands occur
// Do a security check whether we are connected at all
if (!this.CommandChannel.IsConnected())
{
throw new RfReaderApiException(RfReaderApiException.ResultCode_System, RfReaderApiException.Error_NoConnection);
}
List <ParameterDesc> unsubscribeParams = new List <ParameterDesc>();
unsubscribeParams.Add(new ParameterDesc("type", typeOfChannel));
Command rpCommand = new Command("unsubscribe", unsubscribeParams);
string commandID = "";
string replyMsg = this.CommandChannel.execute(rpCommand.getXmlCommand(ref commandID), commandID);
CommandReply rpReply = CommandReply.DecodeXmlCommand(replyMsg);
if (rpReply == null)
{
// There is no reply from our connected reader
throw new RfReaderApiException(RfReaderApiException.ResultCode_System,
RfReaderApiException.Error_NoReply);
}
if (rpReply.ResultCode != 0)
{
// forward errors as exceptions
throw new RfReaderApiException(rpReply.ResultCode, rpReply.Error,
rpReply.Cause);
}
if (RfReaderApi.showPerformanceInfo)
{
ProvideInformation(this, "Unsubscribe took " + perfTimer1.End().ToString("##.###") + "s");
}
}
/// <summary>
///
/// </summary>
/// <param name="iPAddress">IP Address of listener, to which channel send data</param>
/// <param name="port">Port of listener, to which channel send data</param>
/// <param name="bufferTag">If true: buffers data during offline. Listener must acknowledge data</param>
/// <returns></returns>
public void Subscribe(string typeOfChannel, IPAddress iPAddress, int port, bool bufferTag)
{
// Validate current state of Reader API
if (!RfReaderApi.IsValid)
{
throw new RfReaderApiInvalidModeException();
}
// Tssting only: Setup listener, but do not send commands to reader
if (RfReaderApi.testFlag_ListenOnly)
{
SubscribeChannelListener(typeOfChannel, iPAddress, port, bufferTag);
}
else
{
PerfTiming perfTimer1 = new PerfTiming();
perfTimer1.Start();
// Security check for preconditions: Are we connected at all?
if (!this.CommandChannel.IsConnected())
{
throw new RfReaderApiException(RfReaderApiException.ResultCode_System, RfReaderApiException.Error_NoConnection);
}
// setup channel Listener for alarms
if (RfReaderApi.TER == typeOfChannel || RfReaderApi.ALARM == typeOfChannel || RfReaderApi.ALL == typeOfChannel)
{
// Tssting only: send subscribe command, but don't listen
if (false == RfReaderApi.testFlag_SubscribeOnly)
{
if (IPAddress.None != iPAddress)
{
SubscribeChannelListener(typeOfChannel, iPAddress, port, bufferTag);
}
else
{
UnSubscribeChannelListener(typeOfChannel);
}
}
}
else
{
throw new RfReaderApiException(RfReaderApiException.ResultCode_System, RfReaderApiException.Error_InvalidParameter);
}
List <ParameterDesc> subscribeParams = new List <ParameterDesc>();
subscribeParams.Add(new ParameterDesc("type", typeOfChannel));
if (IPAddress.None != iPAddress)
{
subscribeParams.Add(new ParameterDesc("iPAddress", iPAddress.ToString()));
subscribeParams.Add(new ParameterDesc("port", port.ToString()));
}
subscribeParams.Add(new ParameterDesc("bufferTag", bufferTag.ToString()));
Command rpCommand = new Command("subscribe", subscribeParams);
string commandID = "";
string replyMsg = this.CommandChannel.execute(rpCommand.getXmlCommand(ref commandID), commandID);
CommandReply rpReply = CommandReply.DecodeXmlCommand(replyMsg);
if (rpReply == null)
{
// There is no reply from our connected reader
throw new RfReaderApiException(RfReaderApiException.ResultCode_System,
RfReaderApiException.Error_NoReply);
}
if (rpReply.ResultCode != 0)
{
// forward errors as exceptions
throw new RfReaderApiException(rpReply.ResultCode, rpReply.Error,
rpReply.Cause);
}
if (RfReaderApi.showPerformanceInfo)
{
ProvideInformation(this, "Subscribe took " + perfTimer1.End().ToString("##.###") + "s");
}
}
}