Dynamically assign a send pipeline to a dynamic send port in orchestration

Question

Hi
I have an orchestration that is using a dynamic send port. I need to somehow assign the send pipeline to the dynamic send port programmatically.
for example, I will have a decide shape in the orchestration. Based on the condition in the decide shape I need to assign the corresponding send pipeline for that condition. let's say in Branch A, I want to select xml assembler , in Branch B I will want
to select a flat file assembler...
how can this be achieved. I have seen some links recommending using the ESB tool kit, but I do not want to go down that route.
any help is appreciated
Regards, Mazin - MCTS BizTalk Server 2006

Answer 1

Ashwin
Thanks again for your reply.
If I do it using role links I will loose the flexibility I have "having a dynamic file name" lots of our partners would like to receive their files with specific file naming convention based on the content of the file.
If I use a decide shape / another dynamic send port, this means that everytime I have a new custom pipeline I would need to modify the orchestration and add another decide branch with another dynamic send port.
both of the above suggestions will break the flexibility of the solution since we now can configure new partners in seconds in the configuration database without the need to modify the orchestration or add any new send ports
Regards, Mazin - MCTS BizTalk Server 2006
So in your requirement, the “dynamic” nature you want from send port are
 following:
To set the send file names dynamically depends on the message received.
To send the message to different send locations depending on the message received. You want to retrieve this destination URL location from database.
And send ports may have different pipeline component like flat-file and XML ones.
As I have commented in my earlier reply, Role-Link could fit your bill perfectly and this can be achieved by using following:
1) Receive a message into an Orchestration.
2) In Orchestration set the file name dynamically based on the received file and following code shall help you to set the name of the file to dynamic. 
msgToBeSend(FILE.ReceivedFileName)="YourDynamicFileNameUWantToAssign";
Use the above while constructing the outgoing message.
3) Create a “Provider” Role-Link with send port type following the wizard.
4) In Orchestration’s expression shape may be before sending the message out,
performs the party resolution using a code similar to the following:  
YourRoleLinkName(Microsoft.XLANGs.BaseTypes.DestinationParty) = new Microsoft.XLANGs.BaseTypes.Party(msgToBeSend.YourDistingushedPropertyToIdentifyParty, "OrganizationName");
5) In the above sample code “YourDistingushedPropertyToIdentifyParty” refer for the code which could identify the partyname where the send port is configured.
6) Create Parties representing different type of message to be send like flat-file or XML messages.
7) Create a static send port and populate the outbound URL dynamically by using a custom pipeline component. In the custom pipeline component URL can be dynamically bound by calling the database as per your reqirement i.e based on the received message by
accessing its content in custom pipeline access the database, find the destination URL and assign the “OutboundTransportLocation” context property of the outbound message something like this 
msgToBeSend.Context.Promote("OutboundTransportLocation", "http://schemas.microsoft.com/BizTalk/2003/system-properties", YourOutboundURLFromDatabase);
Refer this article on this topic:
http://www.codit.eu/blog/2013/03/06/adding-dynamic-behavior-to-static-send-ports-a-caveat/
8) In the Parties you have created assign the send ports.
9) GoTo your “Role-Links” folder within the deployed BizTalk application and enlist the parties.
These steps enable you to achieve the dynamic requirement you want to implement with the mentioned Role-Link.
Regards,
M.R.Ashwin Prabhu
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