Camel SMPP receive Deliver_sm for sms, but not Deliver_sm for SMSC DeliveryReceipt

[Tee]

Hello,

I'm learning to use Camel SMPP component as a way to send/receive SMS to
SMSC. I'm using Selenium SMPP Sim with the following routes:

context.addRoutes(new RouteBuilder() {
    @Override
    public void configure() throws Exception {
        
       
from("direct:start").to("smpp://smppclient1@localhost:2775?&password=password"
+
                "&enquireLinkTimer=3000" +
                "&transactionTimer=5000&systemType=producer"
        ).process(new SubmitSmNotificationProcessor());

        
        from("smpp://smppclient1@localhost:2775?&password=password" +
                "&enquireLinkTimer=3000" +
                "&transactionTimer=5000&systemType=consumer")
                .process(new DeliveryNotificationProcessor())
                .process(new MOProcessor());
    }
});

Where DeliveryNotificationProcessor contains this code:

if(exchange.getIn().getHeader(SmppConstants.MESSAGE_TYPE).equals(SmppMessageType.DeliveryReceipt.name()))
{
    System.out.println("received DN: "+exchange.getIn().getBody());
} else {
    System.out.println("not DN.");
}

and MOProcessor contain this code:

if(exchange.getIn().getHeader(SmppConstants.MESSAGE_TYPE).equals(SmppMessageType.DeliverSm.name()))
{
    System.out.println("got MO: "+exchange.getIn()+" with body:
"+exchange.getIn().getBody());
}

So when I test this code by doing the following:

ProducerTemplate producerTemplate = context.createProducerTemplate();
context.start();

producerTemplate.setDefaultEndpointUri("direct:start");

Exchange exchange =
producerTemplate.getDefaultEndpoint().createExchange(ExchangePattern.InOut);

for(int i = 0; i < 7; i++ ) {
    exchange.getIn().setBody("Message "+i);
    producerTemplate.send(producerTemplate.getDefaultEndpoint(), exchange);

    Thread.sleep(5000);
}

I'm expecting Deliver_sm for each of the send, and I'm seeing the
corresponding packet via wireSharks. I even see Camel response OK back to
each Deliver_sm with Delivery Receipt body, however, I do not see println
for the DN receiver in the log. I can confirm that camel is processing SMS
sent via the simulator. 

Also, I ran the SmppComponentIntegrationTest.java against Selenium SMPP Sim
and it fails.

Can someone please help explain why I'm not getting Delivery Receipt
processing? Thanks in advance.

-T



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