95-843 Service Oriented Architecture                      Carnegie Mellon University

Assigned: Friday, June 15                                 Homework 5

Due: Friday, June 22, 2012, 11:59:00 PM

When you have completed this project, notify your instructor by email.
In your email, provide your machine name and your application and 
project names and any instructions that may be useful.

Your instructor will log on to your enterprise manager and run the same test
that you are asked to run below.

* In your email, state exactly what parts of this homework you have working. *

This project has been adapted from the course text "Oracle SOA Suite 11g 
R1 Developer's Guide" and is found in chapters 6.

1) Create a composite with an asynchronous BPEL process. This process will
   consult with a human user to determine if a leave request should be approved.

   a) Create a directory on the C: drive named LeaveRequestSchema. Place 
      a copy of the following file in this directory. The file name is 
      LeaveRequestSchema.xsd. 

   <?xml version="1.0" encoding="windows-1252"?>
   <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
               xmlns="http://schemas.packtpub.com/LeaveRequest"
               targetNamespace="http://schemas.packtpub.com/LeaveRequest"
               elementFormDefault="qualified" >
     <xsd:element name="leaveRequest" type="tLeaveRequest"/>        
     <xsd:complexType name="tLeaveRequest">
       <xsd:sequence>
         <xsd:element name="employeeId" type="xsd:string"/>
         <xsd:element name="fullName" type="xsd:string" /> 
         <xsd:element name="startDate" type="xsd:date" />       
         <xsd:element name="endDate" type="xsd:date" />
         <xsd:element name="leaveType" type="xsd:string" />   
         <xsd:element name="leaveReason" type="xsd:string"/>
         <xsd:element name="requestStatus" type="xsd:string"/>
       </xsd:sequence>
     </xsd:complexType>
   </xsd:schema>

   b) Add an asynchronous BPEL component to your SOA composite. The input
      and output elements for this process are found in LeaveRequestSchema.xsd.
      Both the input and output of this BPEL process should point to the LeaveRequest
      element defined in the schema.

      Note that the client of this process provides a callback operation.

   c) Add a Human Task Component to your composite. This is done by dragging 
      a Human Task onto the composite.The name of the Human Task is LeaveRequestToHuman.
      Select OK and then double click the icon on the composite to configure the 
      Human Task.
      Title : Approval Required for Leave Request
      Look over the other options but select the defaults.

   d) Select the Data Tab and then the Plus symbol. We need to select the data
      that we will pass to the decision maker. Select Add Other Parameter. We
      want a LeaveRequest element from the LeaveRequestSchema.xsd. Leave Editable
      Via Worklist unchecked.

   e) Select the Assignment tab. We need to assign the Human Task to a user. Double
      Click on Stage 1 and change the name to Approval. Double click Edit Participant
      and we can add a participant to the human task.
      Type: Single 
      Label: Manager Approval
      Use the + sign to add a participant
      Use weblogic for the value field. In a real application, a directory of 
      users could be searched for this name. In our case, we know we have a user
      named weblogic.

      Select OK and Save on JDeveloper.

   f) Return to the composite and double click the BPEL process. Drag a Human Task
      from the SOA Components palette just after the ReceiveInput task in the BPEL
      process.

   g) Double click the Human Task and select LeaveRequestToHuman from the task 
      definition drop down list. Change the Title to "Leave request for" and then
      use the expression builder to drill into the name found in the input 
      variable.

   h) After selecting OK, note how the BPEL process has been modified. It includes
      a switch where additional activities might be executed depending on the human
      response.

   i) For the Task Parameters, browse to and select the LeaveRequest element from the
      input variable.

   k) Select Create Form to build a form for the decision maker. Select Auto Generate
      Task Form. The Project Name is LeaveRequestForm. Use the Application menu
      to deploy the form. Do not deploy to all instances. Deploy to the admin server.

   l) Visit the enterprise manager and test the web service. Notice that no response 
      appears because a human must make the decision.

   m) Visit http://localhost:7001/integration/worklistapp
      Log on as we do with the enterprise manager.

   n) There should be a task waiting. Use the Actions menu to approve the request.
      Go back to the Enterprise Manager's testing platform and see if the BPEL 
      process has completed.