Message mapping for checking hyphens (-) in material number

Question

Hi All,
I have an interface in PI 7.1 for product change and product create coming from ORACLE to SAP
Now, the reqmt is to take the ORACLE product which could have hyphens or without hyphens
In SAP, the product can have upto 40 characters and if something without hyphens come in, then it adds leading zeros while creating and while changing, SAP expects a product with leading zeros
So, how do I handle this? How do I check in message mapping, the product with hyphens or without and write a condition to it.
Here is my idea
Take the product, use a message mapping function to check for products without hyphens and if YES, add leading zeros upto 40 characters
Can anyone let me know how this could be achieved using message mapping function
I am sure this kind of reqmt especially leading zeros for products is very common in PI interface circle
So, please let me know the details
Thx
mike

Answer 1

Hi Mike,
              your requirement can be solved without UDF too
inputfield ---------------->
                                             indexOf() ------------>  
Constant(-)---------->                                                  less---->if ----->target field                                                                               
constant(0)---------->
inputfield  and contant (hyphen) are inputs to standard text function indexOf. Output of IndexOF and constant(zero) are inputs to standard arithmetic function less. Out put of less goes to boolean function if. The IF has two inputs then and else .
For then part write this logic
inputfield----> formatNumber()---->then
in standard arithmetic function Formatnumber  specify number format with 40 zeroes, leave decimal separetor blank.
Now for the else part of "IF" write this
inputfield----->else
Finally
output of "IF" goes to target field
IF------>target
Regards
Anupam