XML debatch in pipeline

Last month I had a post were described how to debatch XML message in orchestration
How I wrote it is not the best solution , in case if you will have hundreds of records the debatching using XPath will consume too much memory and processor.

In this post I am going to show how to debatch using pipeline.
The sample will fetch multiple records from MS SQL database and after debatching put them to folder.

How to create simple WCF-SQL ports and SQL polling you can read in my old post
I will use the same procedure and table to generate Schemas and PortTypes

In generated schema change envelop type to yes



Next click on TypePolling which is the root for schema
In properties find Body XPath
and edit it as in picture is

Then change the last node to have Max Occurs = 1

Now we should remove hidden stones :-)

When you added adapter metadata from wizard to your project
PortType was generated, DO NOT use it while creating logical receive port in orchestration.
DO NOT Use multipart message type while creating Message
your mesage now has simple structure



Thats all
now in output folder you should have many files where each will contain a single record from SQL



Comments

Unknown said…
Hey, thanks for your post but I'm not getting it to work right. Richard Serotor has a similar blog about this but neither are working for me. I'm still getting a single XML file with multiple records from my db.

I'm using TypedPolling to get my schema and data from db. I changed the Schema to Envelope=Yes, updated the Body XPath, and set leaf node to Max Occurence = 1. Created a File Send port to consume the receive port (no orchestration) but I'm still getting a single file in output folder.

What am I missing? Thanks!
October 6, 2010 at 7:32 PM
Armen Kirakosyan said…
hi Brad
It should be Ok

leave me your email, I will send a solution MSI file, where you can check it. (next week)
October 8, 2010 at 8:00 PM
Gilson said…
Hello Armen,

Is this possible (debatch using pipeline) with the schemas created by the Select operation in the Consume Adapter Service wizard?

Thanks,

Gilson
October 20, 2010 at 8:50 PM
Gilson said…
Hello Armen,
Is it possible to debatch in the pipeline using the schemas generated by the Select method of the Consume Adapter Service wizard?
Regards,
Gilson
October 21, 2010 at 12:29 PM
Armen Kirakosyan said…
Hi
Sure , if your schema is Taken from WCF-SQL adapter you can debatch in the same way.
Changing that values will not break your XSD
October 21, 2010 at 12:46 PM
Anonymous said…
Hi,
Thanks for your post..
Remove hidden stones section help to solve my problem
thanks again.....

Regards,
Nilesh
November 22, 2010 at 11:10 AM
Unknown said…
Hi I am designing a messaging solutuion not using any Orchs and want to recieve a batch as a whole message in the messge box then debatch on the send pipeline as i call a Stored Proc. Can this be done?

Thanks
December 18, 2010 at 4:26 PM
Armen Kirakosyan said…
hi
sure you can do it in the same way as described latter
December 27, 2010 at 12:00 PM
Anonymous said…
Thanks for the article. Really useful. I managed to get it to work for my project. But the result set is duplicating after debatching. For example if I have two records in the database table, debatch gives me four records. one duplicate record for each record. What I am I doing wrong? Thanks
March 20, 2011 at 2:10 AM
Armen Kirakosyan said…
Hi
Check pooling interval,
also check that you mark that records as retrieved so next time SP will skip records.

run SQL profiler to understand what's going on
March 20, 2011 at 8:11 AM
OldBeno said…
Armen,

Thanks for the details I am now debatching my messages on the pipeline ;)

Much Appreciation,
OldBeno
January 9, 2012 at 2:19 PM
OldBeno said…
Armen,

Thanks for the details I am now debatching my messages on the pipeline ;)

Much Appreciation,
OldBeno
January 9, 2012 at 2:19 PM
Post a Comment

Popular posts from this blog

How to poll database using WCF-SQL adapter

Image
1. Create database and tables 2. Create stored procedure 3. Create BizTalk project 4. Create orchestration 5. Consume WCF-SQL 6. Write received data to file share First create TESTWCFSQL database from you SQL Management studio Run the script to create table: USE TESTWCFSQL GO IF OBJECT_ID('dbo.MainData', 'U') IS NOT NULL DROP TABLE dbo.MainData GO CREATE TABLE dbo.MainData ( MainDataID int primary key identity(1,1), FirstName nvarchar(30), LastName nvarchar(30), Amount int ) GO Run script in SQL management studio to create procedure IF EXISTS ( SELECT * FROM INFORMATION_SCHEMA.ROUTINES WHERE SPECIFIC_SCHEMA = N'dbo' AND SPECIFIC_NAME = N'PollData' ) DROP PROCEDURE dbo.PollData GO CREATE PROCEDURE dbo.PollData AS select MainDataID, FirstName, LastName, Amount from dbo.MainData delete from dbo.MainData GO insert some sample lines executing use TESTWCFSQL insert into MainData (FirstName, LastName, Amo
Read more

Debatching records from WCF-SQL using LOOP and XPath

Image
I will continue on my sample which demonstrated records polling from SQL using WCF-SQL adapter How I wrote in my last post it is not the best solution , it will be much slower then disassembling data in pipeline (which I will post in 2-3 days) So what I want to do. First I will count the number of records retrieved from SQL then using LOOP shape I will iterate through records and send each to a file adapter If you did not read my two last posts , read them and create BizTalk project , install SP and create table in MSSQL , create application and ports in BizTalk I will continue on the same orchestration Add new variable in orchestration and set Identifier : RecordsCount Type : System.Int32 After Send shape insert Expression shape Set expression : RecordsCount = (System.Int32)(xpath("count(/*[local-name()='TypedPolling' and namespace-uri()='http://schemas.microsoft.com/Sql/2008/05/TypedPolling/ID1']/*[local-name()='TypedPollingResultSet0' and namesp
Read more