Error posting using Ema Consumer

Also, can we continue to use MarketLink service? Is there any timeline when Marketlink is going to be obsolete?

We are testing using the example in above link under section: "Contribution through Refinitiv's Real-Time Distribution System"

We are able to receive the RefreshMsg from the target page with existing data.

Received Refresh. Item Handle: 2 Closure: com.refinitiv.ema.access.OmmConsumerImpl@fb445a3
Item Name: 1FHLBA1
Service Name: IDN_RDF
Item State: Open / Ok / None / '*All is well'
Fid: 1 Name = PROD_PERM DataType: UInt Value: 3784
Fid: 2 Name = RDNDISPLAY DataType: UInt Value: 151
Fid: 259 Name = RECORDTYPE DataType: UInt Value: 25

However when we are trying to update value of a specific field (say Fid:1) in callback method onRefreshMsg( ) using below code,

PostMsg postMsg = EmaFactory.createPostMsg();
UpdateMsg nestedUpdateMsg = EmaFactory.createUpdateMsg().streamId(refreshMsg.streamId()).name("1FHLBA1");
FieldList nestedFieldList = EmaFactory.createFieldList();
nestedFieldList.add(EmaFactory.createFieldEntry().intValue(1, 3785));
nestedUpdateMsg.payload(nestedFieldList );

((OmmConsumer)event.closure()).submit( postMsg.postId( ++postId).serviceName("DCS_MARKETLINK")

                    .name( "1FHLBA1" )

                    .solicitAck( true ).complete(true)

                    .payload(nestedUpdateMsg), event.handle() );

we get error:

Received AckMsg. Item Handle: 1 Closure: com.refinitiv.ema.access.OmmConsumerImpl@fb445a3
Item Name: 1FHLBA1
Service Name: not set
Ack Id: 2
Nack Code: DeniedBySource
Text: Unable to update fixed area of page or non-contributable field

Is this because we need to setup the update msg in a different way?

Thanks

-Parik

@Jirapongse

Thanks for response. Below is the code snippet of current implementation using RFA7.2, where we are sending multiple field records using a byte[ ]

	private void publish(String type, byte[] buffer) {
                MarketDataItemCont itemPub = new MarketDataItemCont();

		itemPub.setServiceName(super.getServiceName());

		if (IS_DTS_INSERT) {

			if (type == "Image")

				itemPub.setItemName(DTS_INSERT_TYPE);

			else

				itemPub.setItemName(super.getItemName());

		} else

			itemPub.setItemName(super.getItemName());




		itemPub.setBuffer(buffer);

		// publish the contribution/insert

		_contID = MarketDataContributor.contribute(itemPub);
         }

The buffer is created from multiple Field Records. For e.g. actual records to be posted:

Field Name Field Value

[ ROW80_12 ] ' *MINIMUM BID OF $10 MILLION AND INCREMENTS OF $5 MILLION. '
[ ROW80_13 ] ' '
[ ROW80_10 ] ' BIDS DUE BACK AT: 12:10 '
[ ROW80_11 ] ' *ALL-IN BIDS '
[ ROW80_3 ] ' AMOUNT (MIL) MATURITY MATURITY DATE SETTLEMENT '
[ ROW80_4 ] ' $250.000 4WK 06/04/25 05/06/25 '
[ ROW80_2 ] ' FHLB DISCOUNT NOTE AUCTION 05/05/25 '
[ ROW80_7 ] ' CANCELED 17WK 09/03/25 05/06/25 '
[ ROW80_8 ] ' $120.000 26WK 11/05/25 05/06/25 '
[ ROW80_5 ] ' $250.000 8WK 07/02/25 05/06/25 '
[ ROW80_18 ] ' '
[ ROW80_6 ] ' CANCELED 13WK 08/06/25 05/06/25 '
[ ROW80_19 ] ' '
[ ROW80_16 ] ' '
[ ROW80_17 ] ' '
[ ROW80_9 ] ' '
[ ROW80_14 ] ' NO AUCTIONED DISCOUNT NOTES MATURE ON 05/06/25. '
[ ROW80_15 ] ' '

Converted to byte[ ] buffer:

[28, 53, 29, 29, 49, 70, 72, 76, 67, 65, 31, 30, 51, 50, 54, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 42, 77, 73, 78, 73, 77, 85, 77, 32, 66, 73, 68, 32, 79, 70, 32, 36, 49, 48, 32, 77, 73, 76, 76, 73, 79, 78, 32, 65, 78, 68, 32, 73, 78, 67,

………

……..

32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 28]

Now with EMA libraries how do we set these records and post?

Does it have to be one record at a time or multiple records at once? Do you have sample program for it?

I could not find any example with EmaFactory class.

Thanks

-Parik