Receive message from SMSC using OpenSmpp

Question

i'm trying to receive messages from SMSC using the OPENSMPP. this is my code:

try{
    PDU pdu = session.receive(30000);
    if(pdu instanceof DeliverSM){
        DeliverSM received = (DeliverSM) pdu;
        if (received.getEsmClass() == 0) {                                                          // new message
            logger.debug("RECEIVE NEW MESSAGE:" + received.debugString());
            String MSG_SENDER = received.getSourceAddr().getAddress();
            String SHORT_MSG = received.getShortMessage();
        } else {                                                                                    // delivry Repport
            logger.debug("RECEIVE NEW DELIVERED REPORT:" + received.debugString());
            String MSG_ID = (new BigInteger(received.getReceiptedMessageId(), 16)) + "";
            int MSG_STATUS = received.getMessageState();
        }
    }else{
        logger.debug("----------------- FF pdu: " +pdu.debugString());
    }
} catch (TimeoutException e) {
    logger.error("------------------------- ["+SMSC_NAME+"] SMPP RECEIVED TimeoutException "+e.getMessage()+" ---------------- ", e );
} catch (ValueNotSetException e){
    logger.error("-------------------------["+SMSC_NAME+"]  SMPP RECEIVED ValueNotSetException "+e.getMessage()+" ---------------- ", e );
} catch (WrongLengthOfStringException e) {
    logger.error("-------------------------["+SMSC_NAME+"]  SMPP RECEIVED WrongLengthOfStringException "+e.getMessage()+" ---------------- ", e );
} catch (PDUException e) {
    logger.error("-------------------------["+SMSC_NAME+"]  SMPP RECEIVED PDUException "+e.getMessage()+" ---------------- ", e );
} catch (IOException e) {
    logger.error("-------------------------["+SMSC_NAME+"]  SMPP RECEIVED IOException "+e.getMessage()+" ---------------- ", e );
}catch (NotSynchronousException e) {
    logger.error("-------------------------["+SMSC_NAME+"]  SMPP RECEIVED NotSynchronousException "+e.getMessage()+" ---------------- ", e );
}catch (Exception e) {
    logger.error("-------------------------["+SMSC_NAME+"]  SMPP RECEIVED Exception "+e.getMessage()+" ---------------- ", e );
}

that's code working normaly when i connected to SMSC but when i change the SMSC to an other center SMSC i got this error:

SMPP.org.pdu.ValueNotSetException

when i trace that i got that the message id is null but this is my pdu debug:

(deliver: (pdu: 150 5 0 14) (addr: 1 1 22544803532) (addr: 2 1 98131) (sm: msg: id:256092548 sub:000 dlvrd:000 submit date:1708171009 done date:1708171009 stat:DELIVRD err:000 text:) (opt: ) )

can someone help me please.

Answer 1

The pdu debug String indicates that the message id and every other parameters is sent by the SMSC. Make sure that you are tracing the correct pdu .