Problem:
In a company there was a requirement to send
various messages to consume a web service.
I am using BizTalk 2013 R2 to consume the Web Service that have 3
ELEMENT/node that can have more than 1 Records i.e. ‘Min Occurs’=0 and ‘Max
Occurs’=Unbound. But in source schema we can have
any record not present (no data) under any of 3 ELEMENT/node in this
case do not send that ELEMENT/node’, even if we send any ELEMENT/node as Empty
tag like “<HeaderResultError/>” web service 100% do not receive that empty node and
replies invalid data:
Solution:
When I was
simply mapping the node/Elements using “Copy text value” in BizTalk
mapper when there is no data\empty in Source schema BizTalk mapper was sending
empty node in destination schema and as a result creates Empty tag like “<HeaderResultError/>”, but this is not accepted by WebService.
I
use “Logical Existence” functoid as it has characteristic
to check if any attribute, field element and even record exists in source
schema then generate the schema node under destination schema.
“Logical
Existence” description is “Use the Logical Existence functoid to return
the value "true" if the input record or field exists in the source
message. This functoid requires one input parameter only.”
So
if we have any value in source schema “Logical Existence” returns true
then schema node will be generated in destination schema, and if there is no
value under source schema Logical Existence will not generate empty node in
destination schema:
Steps To use
Logical Existence in BizTalk Mapper:
1)
Drag a Logical
Existence
2)
Connect
the attribute\element from Source schema to Logical Existence functoid.
3)
Connect
the Logical
Existence to Value Mapping Functoid.
4)
Connect attribute\element
from Source schema to Value Mapping (If there is value/data in attribute\element of Source schema, it will pass the actual
value to destination schema)
5)
Connect Value Mapping to the attribute\element in destination schema.
