Getting started-with-oracle-so a- lab 11

Getting Started with Oracle SoA
Oracle SOA Asynchronous BPEL Process Callback Lab#11

Description:
BISP is committed to provide BEST learning material to the beginners
and advance learners. In the same series, we have prepared a complete
end-to end Hands-on Beginner’s Guide for Oracle SoA. The document
focuses on Asynchronous BPEL Process Callback. Join our professional
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History:
Version
0.1
0.1

Description Change
Initial Draft
Review#1

www.bispsolutions.com

Author
Shiva Kant Pandey
Amit Sharma

www.bisptrainigs.com

Publish Date
21st Aug 2012
29th Aug 2012

www.hyperionguru.com

Page 1

Asynchronous BPEL Process Callback
ASYNCHRONOUS BPEL PROCESS:
An Asynchronous Process is one which you call and need not wait for the response before
proceeding further. You may just initiate the Asynchronous process and receive the response
when you require it as a part of your process, hence you are not forced to wait for response.
•
•

Real life example of a Synchronous process: You call a friend and ask him to give you
some information. While your friend is finding out the information for you, you are on the
call waiting for his response. Note that connection is not dropped
Real life example of an Asynchronous process: You call a friend and ask him to give
you some information. You ask him to call you back when the information is ready and
you disconnect the call. When your friend is ready with the information, he calls you and
gives you the information. Note that you don’t wait for a response from your friend and
connection is lost. When your friend is ready, he has to establish a new connection and
then provide you the information

Procedure for asynchronous process student BPEL Process project
Step 1: Create new project
New --->All Technologies--->SOA Tier --->SOA project --->OK ---> Project Name
(ProcessStudentAsync) ---> ADF Business Component---> SOA--->Next




Page 2

Composite with BPEL Process---> Finish

Step2 : Fill all its blank spaces
Name
(ProcessStudentAsync)
---->NameSpace
(Leave
as
it is)--->Template(Select
Asynchronous BPEL Process)---> Service Name(ProcessStudentAsyncService)----> mark Expose
as a SOAP service --->Click Ok




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Step3: Open Composite.xml & observe BPEL Process




Page 4

Step 4: Click on ProcessStudentAsync.xsd & it is automatically generated xsd for Async bpel
process

Step 5: : Open ProcessStudentAsync.xsd & Right Click on target namespace & click import




Page 5

Step 6: View empty import in design mode

Step 7: Click on source mode & modify import by providing namespace & schemalocation of
Student.xsd from oramds.




Page 6

Step 8: Copy Schema location of Student.xsd from Resource Palette SOA-MDS by using
shortcut keys CTRL+SHIFT+C & Paste inside ProcessStudentAsync.xsd as shown below &
delete all text inside indicated red box

Replace all text
inside indicated
red box with
oramds:

Step 9: Provide namespace & schema location of Student.xsd from oramds
<import namespace="http://www.bispsolutions.com/training/soa/schema/Student"
schemalocation="oramds:/apps/com/ProcessStudent/xsd/Student.xsd"/>




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Step 10: Register Student.xsd namespace with prefix inside xml schema <schema>
xmlns:stdobj="http://www.bispsolutions.com/training/soa/schema/Student"

Step 11:Edit element name & their type for process & process response .




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Step 12: Preview xsd on design mode

Step 13: : Drag & Drop Assign Activity & rename it as AssignTempMarks & click to edit it .




Page 9

Step 14: : Create TotalVar , AvgVar, ResultVar all assigned as integer Type & ResultVar as
string type then click OK




Page 10

Step 15: Click ok

Step 16: To assign TotalVar click on expression Drag & Drop on TotalVar as shown below:




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Step 17: Click Lang1Marks ---> insert into expression ---> plus sign(+)--> Lang2Marks--->
insert into expression ---> plus sign(+)--> Lang3Marks---> insert into expression---> Click Ok

Step 18: : Click Expression

Drag it & keep it in AvgVar under Variables

Click TotalVar under BPEL Variables---> insert into expression ---> Select Mathematical
Function choose Divide --> insert into expression ---> 3.0(Since number of subjects are
three )---> OK




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Step 19: Click Ok

Step 20: : Drag Switch activity From Component Palette located at Right Pane of
window & keep it in between AssignTempMarks & CallbackClient




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Step 21:
 Click on Condition
 Click on Xpath Expression builder to set condition
 Click Lang1Marks ---> insert into expression ---> greater equals 35--> Lang2Marks--->
insert into expression ---> greater equals 35--> Lang3Marks---> insert into expression--> greater equals 35--> Click Ok

Step 22: Drag & Drop Assign activity under true condition & rename it as AssignPASS as
shown below




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Step 23:
 Click on Copy Rules
 Click Expression
Drag it & keep it in ResultVar under Variables
 Write under Expression 'PASS' and click Ok

Step 24: Drag & Drop Assign activity under true condition & rename AssignFAIL as shown
below




Page 15

Step 25:
 Click on Copy Rules
 Click Expression
Drag it & keep it in ResultVar under Variables
 Write under Expression 'FAIL' and click Ok

To assign output drag & drop Assign activity as shown below & edit it as AssignOutput

Step 26: Map ProcessResponse as shown in diagram so that we can get output response
according to mapping elements then click OK




Page 16

Step 27: Assign output completed & also BPEL process completed Now Click on Compile Icon
shown below

Successful compilation with 0 errors & 0 warnings




Page 17

NOTE: Since we have completed asynchronous BPEL Process calling service now next aim to
create a new caller service i.e StudentProcessoneway BPEL Process
Process
Step 28: Create new project
New --->All Technologies--->SOA Tier --->SOA project --->OK ---> Project Name
(StudentProcessOneWay) ---> ADF Business Component---> SOA--->Next




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Step 29: Click on Composite with BPEL Process




Page 19

Step 30: Fill all its blank spaces
Name (StudentProcessOneWay) ---->NameSpace (Leave as it is)--->Template(Select One Way
BPEL process)----> Service Name(StudentProcessOneWayService)----> mark Expose as a SOAP
service --->Click Ok




Page 20

Step 31: Open Composite.xml & observe BPEL Process




Page 21

Step 32: Click on StudentProcessOneWay.xsd & it is automatically generated xsd for one
way bpel process .

Step 33: : Open StudentProcessOneWay.xsd & Right Click on target namespace & click
import

Step 34: Click on source mode & Import Student.xsd & also register it as shown below
1. Import Student.xsd from oramds under resource palette by provide its
namespace & schemalocation
2. Register its namespace following with its prefix stdobj
3. Rename element name & its type as shown below




Page 22

Step 35: Explore Process--> Student--> ( Name, Number, Email, Lang1Marks, Lang2Marks,
Lang3Marks )




Page 23

Step 36: Open StudentProcessOneWay. bpel , Drag & Drop invoke activity from component
palette

Step 37: Before Invoking ProcessStudentAsync Service copy ProcessStudentAsync.wsdl from
ProcessStudentAsync Project folder . Open jdeveloper ---> mywork--->SOAApplication--->
ProcessStudentAsync---> ProcessStudentAsync.wsdl




Page 24

Step 38: Paste ProcessStudentAsync.wsdl into StudentProcessOneWay Project folder . Open
jdeveloper
---> mywork--->SOAApplication---> StudentProcessOneWay ---> ProcessStudentAsync.wsdl




Page 25

Step 39: Now Open recently pasted wsdl in Text Editor & make this abstract wsdl into
concrete by adding binding & service information .

Step 40: Deploy ProcessStudentAsync Project on Application server



Page 26

Step 41: Click on ProcessStudentAsync & open it

Step 42: Open concrete runtime wsdl by clicking on the following link shown below :



Page 27

Step 43: Copy soap registration from this run time wsdl
xmlns:soap="http://schema.xmlsoap.org/wsdl/soap/"

Step 44: Paste copied registration into Text Editor




Page 28

Step 45: Copy ws policy from run time wsdl as shown below :

Step 46: Paste copied ws policy inside ProcessStudentAsync.wsdl opened in Text Editor as
shown below :




Page 29

Step 47: Copy Binding & service information from run time ProcessStudentAsync wsdl




Page 30

Step 48 Paste copied binding & service information inside ProcessStudentAsync.wsdl opened
in Text Editor as shown below :

Now save all by clicking save all icon at the top & close all tabs .
Step 49: Refresh by clicking refresh icon so after refreshing observe
ProcessStudentAsync.wsdl under StudentProcessOneWay Project at left pane , then click on it
to open .




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Step 50: Open ProcessStudentAsync concrete wsdl in design mode & observe following points
Port Types : One is Process for receiving input & other ProcessResponse for providing
response after call back
Bindings /PartnerLinkTypes : first binding contains policy reference & this policy
referencing directly towards ws addressing policy second binding is for processing
response for call back & lastly observe that this callback service has two roles i.e
provide & requester .
Services : Since here wsdl is concrete & so contains services .
Imports is showing warning & so we have to check the problem in source mode & try to
resolve it .
so after diagnosis found that ProcessStudentAsync.xsd is missing under
StudentProcessOneWay ---> xsd , so now our aim is to copy it from ProcessStudentAsync
---> xsd physically & paste it inside StudentProcessOneWay ---> xsd




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Step 51: Copy ProcessStudentAsync.xsd from jdeveloper--> my work --> SOAApplication-->
ProcessStudentAsync -->xsd---> ProcessStudentAsync.xsd

Step 52: : Paste ProcessStudentAsync.xsd inside jdeveloper--> my work --> SOAApplication-> StudentProcessOneWay -->xsd & then close all tabs




Page 33

Step 53: Click Refresh icon till ProcessStudentAsync.xsd does not appear under
StudentProcessOneWay Project




Page 34

Observe that we have resolve imports warning

Step 54: Drag & Drop partnerlink web service from BPEL Constructs into Partner links swim
lane
Name : ProcessStudentAsync
WSDL URL : ProcessStudentAsync.wsdl (Browse it by clicking its icon )
Partner Link Type: ProcessStudentAsync
Partner Role : ProcessStudentAsync Provider
My Role : ProcessStudentAsync Requester
Click OK




Page 35

Step 55: Created ProcessStudentAsync as PartnerLink as shown below :

Step 56: Now Drag & Drop Invoke activity & Edit Invoke
Name: InvokeProcessStudentAsync
Partner Link : ProcessStudentAsync
 Operation : Process
Click on green plus & Create Variable
1. Name : ProcessStudentAsync_InputVariable
2. Type : auto generate
3. Select Global variable
4. Click Ok
Click OK



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Step 57: Look at the wiring between Invoke activity & third party service ProcessStudentAsync
service




Page 37

Step 58: Drag & drop receive activity from the Component Palette & click on it to edit




Page 38

Since calling service is Asynchronous BPEL call back service & hence it needs receive activity
to receive invoked response.

Step 59: Edit receive Activity
Name: ReceiveProcessStudentAsync
Conversation Id : Leave as it is
Partner Links: ProcessStudentAsync
Operation : ProcessResponse
Create Variable by clicking green plus
1. Name: ReceiveProcessStudentAsync_OutputVariable
2. Type : Auto generate
3. Global variable
4. Click Ok
 Click OK









Page 39

Step 60: Observe that in asynchronous call back process all other activities after invoke does
not wait for invoke process
but they work simultaneously & receive the response whenever needed through receive
activity & so there is arrangement of message id that the given input is processed & provide to
exactly the same caller by same message id so if there is enormous amount of messages are
placed then it keeps in queue & process the data & keep that large amount of processed data
with their message id's of instances .



Page 40

Step 61: Drag & drop assign activity from component palette into component swim lane
between receive input & invoke ProcessStudentAsync & rename it as AssignInvokeInput & click
to edit it.

Step 62:
 Map all data from inputvariable to ProcessStudentAsync_Input variable



Page 41

/client:process/client:Student/ns2:Name --------------------------/ns1:process/ns1:Student/ns2:Name
/client:process/client:Student/ns2:Number------------------------/ns1:process/ns1:Student/ns2:Number
/client:process/client:Student/ns2:Email---------------------------/ns1:process/ns1:Student/ns2:Email
/client:process/client:Student/ns2:Lang1Marks-------------------/ns1:process/ns1:Student/ns2:Lang1Marks
/client:process/client:Student/ns2:Lang2Marks------------------/ns1:process/ns1:Student/ns2:Lang2Marks
/client:process/client:Student/ns2:Lang3Marks------------------/ns1:process/ns1:Student/ns2:Lang3Marks
 Click Ok

Step 63: Drag & drop Email Notification below receiveProcessStudentAsync & rename it as
Email student




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Step 64: Click on Email student ---> click expression for "TO" ---> Email ---> Insert into
Expression
& Expression look like :
bpws:getVariableData('ReceiveProcessStudentAync_OutputVariable','payload','/ns1:proc
essResponse/ns1:StudentResult/ns2:Email')
Click Ok

Step 65: : Click on Email student ---> click expression for "Subject" ---> Name ---> Insert into
Expression



Page 43

 & Expression look like :
bpws:getVariableData('ReceiveProcessStudentAync_OutputVariable','payload','/ns1:proc
essResponse/ns1:StudentResult/ns2:Name')
 Click Ok

Step 66: Click on Email student ---> click expression for "Body" ---> StudentResult ---> Insert
into Expression
& Expression look like : <
%bpws:getVariableData('ReceiveProcessStudentAync_OutputVariable','payload','/ns1:pro
cessResponse/ns1:StudentResult')%>
Click Ok




Page 44

Step 67: click Ok

Step 68 : Save all & then Compile by clicking into compile icon shown below




Page 45

Compilation : 0 errors , 0 warnings .

Step 69: Deploy StudentProcessOneWay to dev soa (application server )

NOTE : "Before deploying composite start admin server" .
Deployment finished




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Step 70: Click On browser ---> Start Enterprise manger -----> login using credentials
(username : weblogic & password : welcome1) , now click twice on
StudentProcessOneway[1.0] composite

Step 71: Click on Test to test the composite instance




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Step 72: Input required data in all blank fields & click to TestWebService

Step 73: Message for web service invocation was successful is Shown below & also an email is
sent to the student so click Launch Flow Trace




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Step 74: Notice that state is completed ,Click on StudentProcessOneWay

Step 75: To observe the flow chart of the composite , Click FlowTrace ----> Flow & then
observe both the figures




Page 49

Fig(1)

Fig(2)

Step 76: Click on Invoke notification & see the details of Student sent Email Also notice the
message ID of the notification at last of message .




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Step 77: Come back to StudentProcessOneWay Composite home & click on ShutDown tab

Step 78: Successfully ShutDown the composite . also shut down the admin server




Page 51




Page 52

Getting started-with-oracle-so a- lab 11

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