getting started with oracle soa lab 12

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Getting Started with Oracle SoA

Asynchronous BPEL Process Callback Lab#12

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 Beginners Guide for Oracle SoA. The document focuses on

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History:Version Description Change Author Publish Date0.1 Initial Draft Shiva Kant Pandey 21st Aug 20120.1 Review#1 Amit Sharma 29th Aug 2012

www.bispsolutions.com www.bisptrainigs.com www.hyperionguru.com Page 1
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Project on 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 yousome information. While your friend is finding out the information for you, you are on thecall 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 giveyou some information. You ask him to call you back when the information is ready andyou disconnect the call. When your friend is ready with the information, he calls you andgives you the information. Note that you dont wait for a response from your friend andconnection is lost. When your friend is ready, he has to establish a new connection andthen provide you the information

Stepwise 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



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Composite with BPEL Process---> Finish

Step2 : Fill all its blank spaces



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Name (ProcessStudentAsync) ---->NameSpace (Leave as it is)--->Template(Select

Asynchronous BPEL Process)---> Service Name(ProcessStudentAsyncService)----> mark Expose

as a SOAP service --->Click Ok

Step3: Open Composite.xml & observe BPEL Process



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

process



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

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.



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Step 8: Copy Schemalocation 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:


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Step 9: Provide namespace & schema location of Student.xsd from oramds

Step 10: Register Student.xsd namespace with prefix inside xml schema

xmlns:stdobj="http://www.bispsolutions.com/training/soa/schema/Student"



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

Step 12: Preview xsd on design mode



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

Step 14: : Create TotalVar , AvgVar, ResultVar all assigned as integer Type & ResultVar as

string type then click OK



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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



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Step 20: : Drag Switch activity From Component Palette located at Right Pane of

window & keep it in between AssignTempMarks & CallbackClient

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



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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



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

below

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



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Step 26: Map ProcessResponse as shown in diagram so that we can get output response

according to mapping elements then click OK



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

shown below

Successful compilation with 0 errors & 0 warnings

NOTE: Since we have completed asynchronous BPEL Process calling service now next aim to

create a new caller service i.e StudentProcessoneway BPEL Process



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Process

Step 28:Create new project

New --->All Technologies--->SOA Tier --->SOA project --->OK ---> Project Name

(StudentProcessOneWay) ---> ADF Business Component---> SOA--->Next

Step 29: Click onComposite with BPEL Process



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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



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Step 31: Open Composite.xml & observe BPEL Process



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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 itsnamespace & schemalocation

2. Register its namespace following with its prefix stdobj3. Rename element name & its type as shown below



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

Lang3Marks )



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

palette



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Step 37: Before Invoking ProcessStudentAsync Service copy ProcessStudentAsync.wsdl from

ProcessStudentAsync Project folder . Open jdeveloper ---> mywork--->SOAApplication--->

ProcessStudentAsync---> ProcessStudentAsync.wsdl



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Step 38: Paste ProcessStudentAsync.wsdl into StudentProcessOneWay Project folder . Open

jdeveloper

---> mywork--->SOAApplication---> StudentProcessOneWay ---> ProcessStudentAsync.wsdl



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Step 39: Now Open recently pasted wsdl in Text Editor & make this abstract wsdl into

concrete by adding binding & service information .



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Step 40: Deploy ProcessStudentAsync Project on Application server

Step 41: Click on ProcessStudentAsync & open it



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



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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



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



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

shown below :

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



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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 providingresponse after call back

Bindings /PartnerLinkTypes : first binding contains policy reference & this policyreferencing directly towards ws addressing policy second binding is for processingresponse for call back & lastly observe that this callback service has two roles i.eprovide & 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 toresolve 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



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Step 52: : Paste ProcessStudentAsync.xsd inside jdeveloper--> my work --> SOAApplication--

> StudentProcessOneWay -->xsd & then close all tabs

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

under StudentProcessOneWay Project



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Observe that we have resolve imports warning



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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

Step 55: Created ProcessStudentAsync as PartnerLink as shown below :



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Step 56: Now Drag & Drop Invoke activity & Edit Invoke

Name: InvokeProcessStudentAsync

Partner Link : ProcessStudentAsync

Operation : Process

Click on green plus & Create Variable1. Name : ProcessStudentAsync_InputVariable

2. Type : auto generate3. Select Global variable4. Click Ok

Click OK



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

service



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



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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 plus1. Name: ReceiveProcessStudentAsync_OutputVariable2. Type : Auto generate3. Global variable4. Click Ok

Click OK



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Step 60: Observe that in asynchronous call back process all other activities after invoke doesnot 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 .



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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:



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Map all data from inputvariable to ProcessStudentAsync_Input variable/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-------------------


/client:process/client:Student/ns2:Lang3Marks-------------------


Click Ok



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

Email student

Step 64: Click on Email student ---> click expression for "TO" ---> Email ---> Insert into

Expression

& Expression look like :bpws:getVariableData('ReceiveProcessStudentAync_OutputVariable','payload','/ns1:processResponse/ns1:StudentResult/ns2:Email')

Click Ok



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

Expression

& Expression look like :bpws:getVariableData('ReceiveProcessStudentAync_OutputVariable','payload','/ns1:processResponse/ns1:StudentResult/ns2:Name')

Click Ok



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Step 66: Click on Email student ---> click expression for "Body" ---> StudentResult ---> Insert

into Expression

& Expression look like :

Click Ok



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Step 67: click Ok

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

Compilation : 0 errors , 0 warnings .



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

NOTE : "Before deploying composite start admin server" .

Deployment finished

Step 70: Click On browser ---> Start Enterprise manger -----> login using credentials

(username : weblogic & password : welcome1) , now click twice on

StudentProcessOneway[1.0] composite



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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



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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



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

getting started with oracle soa lab 12

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