Help on EMA tutorial please.
Hai.
Im new to Electron SDK and trying to run through the EMA tutorial.
But I get this error
....................................................................................................................................................
2020-02-10 10:07:19.771 SEVERE com.thomsonreuters.ema.access.ChannelCallbackClient reactorChannelEventCallback
loggerMsg
ClientName: ChannelCallbackClient
Severity: Error
Text: Received ChannelDown event on channel Channel
Instance Name EmaConsumer_1
RsslReactor Channel is null
Error Id 0
Internal sysError 0
Error Location Reactor.processWorkerEvent
Error text Reconnection failed: java.nio.channels.UnresolvedAddressException
loggerMsgEnd
login failed (timed out after waiting 45000 milliseconds) for elektron:14002)
...........................................................................................................................................................
Is there a step that Im missing or I need an active OMM provider?
{
OmmConsumer consumer = null;
try
{
AppClient appClient = new AppClient();
OmmConsumerConfig config = EmaFactory.createOmmConsumerConfig();
consumer = EmaFactory.createOmmConsumer(config.host("localhost:14002").username("user"));
ReqMsg reqMsg = EmaFactory.createReqMsg();
consumer.registerClient(reqMsg.serviceName("DIRECT_FEED").name("IBM.N"), 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();
}
}
Best Answer
-
Hi @fikri.rt
You need a running OMM Provider or RSSL compatible Datafeed such as Advance Distribution Server (ADS) or Elektron Zero Daemon (EZD) or any other datafeed.
If you just want to test the API, you can use example OMM Provider which located at com.thomsonreuters.ema.examples.training.iprovider.series100.example100__MarketPrice__Streaming package from Elektron SDK.
So, run the Interactive Provider (listening on TCP 14002 by default)
run the consumer to connect to Interactive Provider
consumer = EmaFactory.createOmmConsumer(config.host("localhost:14002").username("user"));
Change localhost and 14002 to any appropriate value.
2
Answers
-
Hello @fikri.rt
Alternatively, you can get recorded data from sink driven source tool. Start sink driven source tool and EMA consumer application connecting to the tool. For more details, please refer to Getting Playback Data with EMA VDO
1 -
Thank you @""Pimchaya.Wongrukun
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