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Design-Time Properties in Custom Pipeline Components
 

Design-Time Properties in Custom Pipeline Components

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Understanding Design-Time Properties for Custom Pipeline Components in BizTalk Server ...

Understanding Design-Time Properties for Custom Pipeline Components in BizTalk Server
Based on article by Saravana Kumar, MCAD (Charter member), MCP (BizTalk 2004)
Published: December 2006

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    Design-Time Properties in Custom Pipeline Components Design-Time Properties in Custom Pipeline Components Presentation Transcript

    • Design Time Properties BizTalk Pipeline Components Daniel Toomey presenter
    • Source• Understanding Design-Time Properties for Custom Pipeline Components in BizTalk Server• Author: Saravana Kumar, MCAD (Charter member), MCP (BizTalk 2004)• Published: December 2006• http://www.microsoft.com/downloads/details.aspx?FamilyID=8c2572a2-fb61-4016-a7a7- 1c37518b39ff&displaylang=en
    • What Is a Pipeline?• All messages in/out of BizTalk must go through a pipeline• BizTalk includes 4 default pipelines: – Pass Through Receive / Transmit – XML Receive / Transmit• Each pipeline has several stages
    • Receive Pipeline Stages• Decode: Used to decrypt/decode an incoming message. Examples: decrypt a secure message into plaintext; decode a MIME message into XML.• Disassemble: Used to convert a flat-file message to XML, if necessary. In addition, if the incoming message consists of a number of discrete messages bundled together within an envelope, disassemble components can be used to break the message into multiple single messages.• Validate: Used to validate an incoming message against the schema.• ResolveParty: The component will attempt to determine an identity for the sender
    • Send Pipeline Stages• Pre-Assemble: Used to manipulate a message prior to serialization.• Assemble: Takes the XML format the messaging engine turns out and converts it to a flat-file format if necessary, or adds an envelope to an outgoing message. This is a counter action to the Disassemble stage on the receive side.• Encode: Used to encrypt/encode the message. This is a counter action to the Decode stage on the receive side.
    • What Is a Pipeline Component?• Pipeline Components do the work inside the stages• Some stages can support multiple components, serially processed
    • Design Time Properties• Configuration settings for .NET components• Can change at design time (VS) and/or at run time (BTS Admin Console)
    • Design Time Properties
    • Custom Design Time Properties• Defining design-time properties using basic .NET data types• Creating a drop-down list for a design-time property• Complex types and serialization techniques – Custom types and TypeConverter – Collections and XML serialization• Using the SchemaList class
    • IPersistPropertyBag Interface• Key interface for design time properties• Four methods: – GetClassID : allows use with unmanaged code – InitNew : initialise any necessary structures, caches, data, objects, etc – Load : initialise (read) properties from bag – Save : save properties into the bag
    • Creating a Custom Pipeline Component• START FROM: – Copy from SDK sample – Use BTS Pipeline Component Wizard – Use sample from Saravana Kumar (PipelineCompTemplate.cs)• STEPS: 1. Change name of class in two places: • Class definition • Resource Manager definition (string) 2. Generate a new unique class ID
    • Steps for Basic .NET Data Types1. Define private field variables2. Define public design time properties3. Implement the Load method of the IPersistPropertyBag interface.4. Implement the Save method of the IPersistPropertyBag interface5. Implement the GetClassID and InitNew methods of the IPersistPropertyBag interface6. Implement Execute method
    • Using the Custom Component1. Build the project2. Copy DLL into: C:Program FilesMicrosoft BizTalk Server 2006Pipeline Components3. Add to toolbox4. Drag onto a new BizTalk pipeline
    • Post-Build Event CodeIF $(ConfigurationName) EQU Release GOTO donexcopy "$(ProjectDir)$(Outdir)$(TargetFileName)" "C:Program FilesMicrosoft BizTalk Server 2006Pipeline Components" /R /Y /FIF %ERRORLEVEL% EQU 0 GOTO donenet stop "BizTalk Service BizTalk Group : BizTalkServerApplication"iisresetxcopy "$(ProjectDir)$(Outdir)$(TargetFileName)" "C:Program FilesMicrosoft BizTalk Server 2006Pipeline Components" /R /Y /Fnet start "BizTalk Service BizTalk Group : BizTalkServerApplication":done
    • Per-Instance Pipeline Configuration• Can set property values for each instance• Set on Send / Receive port properties• Set by Administrator
    • Per-Instance Pipeline Configuration
    • Demo
    • Tips• Keep pipeline and pipeline component projects in separate solutions• Ensure you generate a unique class ID• Change namespace in two places• Ensure properties are spelled correctly when represented as a string in PropertyBag methods
    • BTS Pipeline Component Wizard• Built by Martijn Hoogendoorn (MVP)• http://btsplcw.codeplex.com/• Automates much of the process of creating a component template• Need to build the solution & run the MSI• Becomes a new BizTalk project type
    • Questions?