Hello @luxiangyuan

Another way is to set closure in OmmConsumer.registerClient(ReqMsg reqMsg,OmmConsumerClient client,java.lang.Object closure) method when the application subscribes a RIC. closure parameter is used to specify application-defined item identification. Hence, in onRefreshMsg(..) or onUpdateMsg(..), you can check OmmConsumerEvent's closure if it is for which RICs or group of RICs(codeChain or quotation) before decoding data.

For example:

//for codeChain RIC 

consumer.registerClient( EmaFactory.createReqMsg().serviceName("ELEKTRON").name("0#.DJI"), appClient, "codeChain"); 


//for quotation RIC 

consumer.registerClient( EmaFactory.createReqMsg().serviceName("ELEKTRON").name("JPY="), appClient, "quotation"); 

and in onRefreshMsg(..) , onUpdateMsg(..)

public void onRefreshMsg(RefreshMsg refreshMsg, OmmConsumerEvent event) 
{ 
  if(event.closure().toString().equalsIgnoreCase("codeChain")) 
  { 
    System.out.println("process codeChain"); 
    .... 
  } 
  else if(event.closure().toString().equalsIgnoreCase("quotation")) 
  { 
    System.out.println("process quotation"); 
    ... 
  } 
}

The example result:

When the application receives data of codeChain

When the application receives data of quotation

Hello @luxiangyuan

You can check if a message is codeChain or quotation by checking field id 239(REF_COUNT). Each codeChain message contains this field. If the message does not have the field, it is quotation. This is explained in How to tell if a RIC is for a chain? section of Simple Chain objects for EMA - Part 1

Hope this help.

hello Pimchaya.Wongrukun

thanks for your answer.

as your answer, I must decode the FieldList to check if it contain the fileld id 239,

which is inefficient to me;

so I wan to know how i can judge the msg tpye before decode the FieldList, so I can

decode the codeChain or the quotation separately.

hi Pimchaya.Wongrukun

thank you very much, i will try it,

thank you again.

hello Alex Putkov:

I am so sorry ， as I busied my self on "Decoding the info" received from EMA. i did not noticed the mail.

but i can not find the "Accept" text to click on this page. could you pleas gaves more details?