java.nio.channels.UnresolvedAddressException using Elektron Connect SDK

yinwh

I got a trial on Elektron Connect APIs/SDK, but there is an exception occurred as below:

Dec 10, 2019 3:08:54 PM com.thomsonreuters.ema.access.ChannelCallbackClient reactorChannelEventCallback

warning: loggerMsg

ClientName: ChannelCallbackClient

Severity: Warning

Text: Received ChannelDownReconnecting event on channel Channel

RsslReactor Channel is null

Error Id 0

Internal sysError 0

Error Location Reactor.processWorkerEvent

Error text Reconnection failed: java.nio.channels.UnresolvedAddressException

loggerMsgEnd

and main code as below, I think the problem should on: config.host("elektron:14002").username("test"), reqMsg.serviceName("ELEKTRON_AD").name("IBM.N"), any help?

public class Consumer
{ 
public static void main(String[] args)
{ 
OmmConsumer consumer = null;
try
{ 
AppClient appClient = new AppClient();

OmmConsumerConfig config = EmaFactory.createOmmConsumerConfig();

consumer = EmaFactory.createOmmConsumer(config.host("elektron:14002").username("test"));

ReqMsg reqMsg = EmaFactory.createReqMsg();

consumer.registerClient(reqMsg.serviceName("ELEKTRON_AD").name("IBM.N").interestAfterRefresh(false), appClient);

Thread.sleep(60000); // API calls onRefreshMsg(), onUpdateMsg() and onStatusMsg()
}
catch (InterruptedException | OmmException excp)
{ 
System.out.println(excp.getMessage());
}
finally
{ 
if (consumer != null) consumer.uninitialize();
}
}
}

pimchaya.wongrukun01

Hello @yinwh

java.nio.channels.UnresolvedAddressException indicates that EMA Java fails to maps the host name(elektron) to IP address. Please make sure that you put the IP address of elektron to the hosts file on the machine running EMA application.

If you have no permission to modify the hosts file.You can use the IP adress instead of elektron.