How to implement FLOW ACTIIVTY in Oracle SOA

Property: whenever executed parallel Non blocking invoke à true (multithreading)     XSD: i/p  i1 ,i2  int o/p  result àint   create variables:

• name (add) type(int)
• name (mul) type(int)

  Assign 1 : Input  invoke 1 i/p Input  invoke 2 i/p   Assign 2 : Invoke 1 o/p  add   Assign 3: Invoke 2 o/p  mul   Switch: Case1: add> mul Case2:  mul  > add   Assign 4: Add  result   Assign 5: mul result   Create the property: Double click on partner link (ex: PL _add) Property  click Property name(non blocking invoke), property  value (true) ok   Note:

• Put property to 2 partner links

1. PL_add
2. PL _ mul

• Non blocking invoke means send the message parallel.

  Flow: Loan approval process à when ever we know the flow of our project we work with “flow activity” . i/p  loan amount, duration   Flow – N : When we are not sure of the flow of the project and don’t how many web services we need to invoke we will dynamically process at runtime by using “flow activity” .   DB –poll + synchronous _read to file _write:   Fault Handling Frame work: 2 ways to handle the faults

1. Process level :
2. Scope
3. Catch
4. Catch all
5. Throw
6. compensate
7. Policy level
8. Fault – indings.xml
9. Fault – polices .xml

• Process level can be handle particular BPEL process only

   Ex: In process have multiple BPEL’s are then if we created throw, catch, catch all for ci validation BPEL then it applicable for that BPEL only not applicable for total process project.

• Policy level can be handle entire application /project

Ex: Process project all BPEL process handled. 2 types of faults

1. Business faults: it can be defined business conditions

Ex: amount> 50,000 , length cc number = 16 digits

2. Run time faults : it can handle by using catch, catch all blocks. It doesn’t have throw activity.

Business faults	Run time faults
Catch catch catch all catch all throw

    XSD: i/p  Branch name  string branch  string loan amount  int o/p  Result  string   Switch: Case1 : Label :SBI Expression: bank name = “SBI”   Case2: Label :ICICI Expression: bank name= “ICICI’   Throw 1 and catch1: Name space URI = http://SBI BANK Local part = SBI BANK   Throw 2 and catch2: Name space URI = http://ICICI  BANK Local part = ICICI BANK   Throw 3 Name space URI = http://other   BANKs Local part = other BANKs Process level : Project  customer details.

1. Policy level:
2. Fault – bindings.xml
3. Fault – policies.xml

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Write inside composite .xml: <property name = “oracle .composite.faultpolicy file”> Fault – policies.xml</property> <property name = “oracle .composite.faultpolicy file”> Fault – bindings.xml</property>

1. xml  open source

</service> <component name =”BPEL process 1”  version= “1-0”>

2. Copy fault – bindings.xml , fault – polices.xml

Paste inside project(C://j developer/ my works/application ramesh 1/project) fault –policies.xml -> contains (actions)

1. Ora – retry
2. Ora – terminate

• Ora – human intervention

1. Ora –rethrow
2. Ora –reply
3. Ora –java

  Main faults:

1. Remote fault
2. Mediator fault

• Binding fault

1. Selection failure.

  Ora – retry:

1. Retry interval failure action
2. Retry count

• Retry failure action

  Ora – human intervention: Some one has come and do something   Ora –java: Send the mail to admin /client(java code)   Ora –rethrow: Throw back policy level to process level   Ora – terminate: Immediately stop the process.   Ora –reply: Starts again  ora retry   Example for above all (remote fault)   PL:

1. Shut down
2. Retired
3. Undeploy
4. Server shutdown

  Mediator faults:

• Routing rules
• Transformation
• XSD validation
• Filter condition

  Binding fault: WSDL miss match   Ault – policies .xml: <conditions> <fault name Xmlns:bpelx =http://schemas.oracle.com/bpel/extension name =”bpelx: remotefault” > <conditions> <action ref =”ora -retry”/> </conditions> </fault name> <faultname Xmlns:bpelx =http://schemas.oracle.com/bpel/extension name =”medns:mediatorfault” > <conditions> <action ref =”my – mediator-fault-handler”/> </conditions> </fault name> <fault name Xmlns:bpelx =http://schemas.oracle.com/bpel/extension name =”bpelx: bindingfault” > <conditions> <action ref =”my- java- handler”/> </conditions> </fault name> </conditions> <Actions> <Action id = “my –java-handler”> <retry> <retry count>4</retrycount> <retry FailureAction ref =”Ora – human - intervention”/> </retry> </Action> </Actions> For Indepth knowledge on Oracle SOA, click on below

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