Cannot obtain DACS Usage information from my JAVA application

philippe.mesmeur

My application is made of two main blocks

• Block A: Subscribes to make data and send it to a Front Office system
  • it connects to TREP
• Block B: Handles users connections and permissions
  • it connects to DACS

I would like Block B to report to DACS each user's RIC consumption, so that a detailed DACS Usage Report can be generated — precisely identifying which users have subscribed to which RICs.

To do so, I'm using the function AuthorizationAgent.checkSubscription():

private void checkSubscription(Handle dacsHandle, String symbol) throws AuthorizationException {

    AuthorizationCheckResult authorizationCheckResult =

                                  agent.checkSubscription(dacsHandle,

                                                          ALWAYS_PERFORM_USAGE_LOGGING,

                                                          NORMAL_REQUEST_LOGGING,

                                                          new AuthorizationCheckStatus(),

                                                          dacsConfiguration.getServiceName(),

                                                          symbol,

                                                          null);


    if (authorizationCheckResult == ACCESS_ALLOWED) {

        LOG.trace("checkSubscription: ACCESS_ALLOWED for dacsHandle={}, symbol={}", dacsHandle, symbol);

    } else {

        LOG.trace("checkSubscription: ACCESS_DENIED for dacsHandle={}, symbol={}", dacsHandle, symbol);

    }

}

Let's take the example of user touser1 that connects to my application and wants to consume BUHUF3MD=. As I get the following log message:

[2026-07-07 08:16:04.601] TRACE Thread-3 com.trmsys.rtmd.core.rtsources.reuters.rfa.RfaFacade checkSubscription: ACCESS_ALLOWED for dacsHandle=com.reuters.rfa.internal.common.HandleImpl@7c520325, symbol=BUHUF3MD=

I suppose that everything is OK

Now when I connect to the DACS console, I chose the report tab:

then Usage Report and By User

I chose Request Type: ALL

I can now click on Find User(s), select touser1 and launch Generate Report

Once done, when going to the report status page, I can find my report but it appears empty:

I tried other kinds of Usage Report but I always obtained empty reports!

My questions are:

• is AuthorizationAgent.checkSubscription() the right function to use?
• is my way of generating report correct?

Additional information:

• my application is written in JAVA, it uses
  • Realtime SDK 3.9.2.0 for connecting to TREP
  • RFA 8.2.1.L3 for connecting to RFA
    

Thanks for helping

Jirapongse

@philippe.mesmeur

Thank you for reaching out to us.

There are many factors that can impact the creation of a DACS usage file. Please check the following discussions.

• Dacs API not logging usage
• How to enable logging usage data in Open DACS API?

You can search DACS_SNKD_P2P_USAGE in the forum for more information.