IBM BPM V7.5 orchestration scenarios, Part 1: Top-down design using IBM Process Designer and IBM Integration Designer

Part 2: Working with Integration Designer

Bring up Integration Designer to implement an SCA-based Plain Old Java Object (POJO) service that will be used by the second of the three activities in TopDown1Bpd.

Create a new workspace

1. Launch Integration Designer.
2. In the Workspace Launcher window, enter a workspace name, such as C:\IBM\workspaces\TopDown (Figure 20).
   
   Figure 20. Selecting a workspace
   
   
   
3. Click OK.

   Note: Do not check the box that says “Use this as the default and do not ask again”.

4. You are asked for the Process Center connection details:
   1. Enter the Process Center URL as http://<SERVER_NAME>:<PORT_NUMBER>/ProcessCenter, as shown in Figure 18.
   2. Enter the appropriate credentials, such as tw_admin/tw_admin.
   3. Click Login (Figure 21).
      
      Figure 21. Process Center login
      
      
      
   4. If a Getting Started welcome screen is displayed, close it.
   5. You are now in the Process Center perspective.

      Note: In case you are taken to the Business Integration perspective, which is the default perspective in the Integration Designer, click the tab on the top right to open the Process Center perspective. You can also get to that perspective by selecting Windows > Open Perspective > Process Center.

5. Once you are in the Process Center screen, open the Top Down 1 Process Application in the Integration Designer workspace by clicking Open in workspace.
   1. Notice the subtle difference between the Process Center screens. In Process Designer, the menu option reads "Open in designer", whereas in Integration Designer, the menu option reads "Open in workspace" (see Figure 22).
      
      Figure 22. Process app listed in Process Center perspective
      
      
      

      Note: The Process Center, which is the common repository, is accessible via Process Designer as well as Integration Designer.

   2. Select Top Down 1 in the Open Process Applications pop-up window and click OK, as shown in Figure 23.
      
      Figure 23. Process apps to be opened in the workspace
      
      
      
6. It takes some time for the Process Application information to be populated and built in Integration Designer. Watch the little status bar at the bottom right of the tool.

After everything is loaded, let's explore the creation and deployment of a Service Component Architecture (SCA) service.

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Implementing an SCA Service

1. In the Business Integration perspective, navigate down to Top Down 1 > Advanced Integration Services.
2. Right-mouse click on sca service and choose Implement as shown in Figure 24.
   
   Figure 24. Context menu in Integration Designer
   
   
   
3. From the four choices for implementation type, select Java component (Figure 25) and click Finish.
   
   Figure 25. Implementation types
   
   
   
4. The Java™ implementation window is displayed.

   In another tab, the Assembly diagram is updated. If you browse it, you see that there are two components wired together: scaservice is an import component that is wired to the reference of the Java component named scaservice_JavaImplementation.

   Note: The tooling generates most of the Java code for you.

5. Go back to the Java implementation tab. Scroll to the bottom and implement the invoke method. Similar to what you did in Process Designer, you added println (see Listing 3). The output shows up on the log and returns a new string.
   
   Listing 3. Java implementation code
   

   public String invoke(String data) { System.out.println("BU: sca service "+data); data = "hi dad"; return data;

   
   
6. Press Ctrl+S to save the edits and then close the Java editor.

The service, although a simple println statement, has been implemented. At this time, the updates only exist in the Integration Designer workspace. You need to update the Process Center with these code changes.

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Publishing to the Process Center

1. Still in the Business Integration perspective, right-mouse click on the project folder, Top Down 1 Main, and choose Refresh and Publish (Figure 26). Watch the little status bar at the bottom right of the tool to make sure all the artifacts get updated.
   
   Figure 26. Context menu in Integration Designer to sync up with Process Center
   
   
   
2. Choose Yes, if prompted to close the editors.

You may minimize the Integration Designer for now. Next, you will run the process using Process Designer.

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Table of contents

• About this tutorial
• Part 1: Working with Process Designer
• Part 2: Working with Integration Designer
• Part 3: Playback the BPD
• Conclusion
• Resources
• About the authors

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• Buy: IBM Business Process Manager

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