PCML Structure length

Working with a PCML call that I *almost* have working....the issue seems 
to be that one of the parameters is the length of the structure which I 
am not sure how to calculate/get.  The API being called is:

https://www.ibm.com/docs/en/i/7.4?topic=ssw_ibm_i_74/apis/qycdrnwc.htm 
(yeah, been working on this for a while).  The PCML file I created is:

<pcml version="2.0">

<!-- PCML source for calling "Renew Certificate" (QYCDRNWC) API -->
     
   <!-- Format RNWC0300 - Other formats are available -->
   <struct name="rnwc0300">
     <data name="offsettofile"               type="int"    length="4"  usage="input"/>
     <data name="lengthoffilename"           type="int"    length="4"  usage="input"/>
     <data name="certfile"                   type="char"   length="lengthoffilename" usage="input"/>
   </struct>

   <!-- Program QYCDRNWC and its parameter list for retrieving RNWC03000 format -->
   <program name="qycdrnwc" path="/QSYS.LIB/QICSS.LIB/QYCDRNWC.SRVPGM" entrypoint="QycdRenewCertificate">
     <data name="certreqdata"      type="struct"   struct="rnwc0300"   usage="input"/>
     <data name="reqdataLength"    type="int"      length="4"          usage="input" />
     <data name="format"           type="char"     length="8"          usage="input"    init="RNWC0300"/>
     <data name="errorCode"        type="int"      length="4"          usage="input"    init="0"/>
   </program>

</pcml>

The relevant code (Java) is this:

             pcml.setValue("qycdrnwc.certreqdata.offsettofile",8);
             pcml.setValue("qycdrnwc.certreqdata.lengthoffilename",pathlen);
             pcml.setValue("qycdrnwc.certreqdata.certfile",certificate_path);
             
             pcml.setValue("qycdrnwc.reqdataLength",[how to I get this value??]);

So the structure is constructed using the setValue methods for each 
element of the structure.  But, I also need the length of the 
qycdrnwc.certreqdata structure to pass as the second parameter.  I was 
hoping that there was a PCML method called getLength(variable)...no joy.

How do I get the length of that structure?

-- 
Pete Helgren
www.petesworkshop.com
GIAC Secure Software Programmer-Java
AWS Certified Cloud Practitioner
Microsoft Certified: Azure Fundamentals
Twitter - Sys_i_Geek  IBM_i_Geek
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