java data matrix barcode reader Figure 11-4. Adding the order message type in Java

Printer Data Matrix 2d barcode in Java Figure 11-4. Adding the order message type

Figure 11-4. Adding the order message type
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CHAPTER 11 s ADVANCED ORCHESTRATIONS
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Configuring the Receive Port
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Now you re ready to add some shapes to your orchestration. You ll begin with the Receive shape. 1. Drag a Receive shape out onto the orchestration designer. 2. Switch to the Properties window of the shape and change its name to ReceiveOrder. 3. Click the drop-down list for the Message property and select order. 4. Set the Activate property to True. 5. Right-click the left port surface of the designer area and select New Configured Port. 6. Add an XML receive port (as you did in 10). Name the port OrderIn and the port type OrderInType. This will be a one-way, receive port. You will specify the appropriate port binding information later. 7. Connect the Receive Port shape to the Receive shape, as shown in Figure 11-5.
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Figure 11-5. The Receive shape is fully configured.
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Implementing the Decision Point
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If you recall from the application design discussion earlier, you need to implement a decision point within the orchestration to route the messages based on the ProductPrice element. 1. Drag a Decide shape to the whiteboard, just below the Receive shape. 2. Rename the Rule_1 block to LargeOrder. 3. Double-click LargeOrder to bring up the Expression window. Add the following expression to the code box, and then click OK to continue: order.ProductPrice > 1000 Orders coming in that have a price greater than $1,000 will follow the path to the left, while those satisfying the Else logic will roll down the path to the right, as shown in Figure 11-6.
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Figure 11-6. Implementing the Decide shape
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Configuring the Send Port for Small Orders
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Let s first add the send functionality for those orders whose pricing is below $1,000 and so will not need further approval. You re not really interested in taking any kind of business action against those particular orders; you just want to move them along the process. You ll do that by adding a send port to the Else branch of your Decision shape. 1. Drag a Send shape out to the whiteboard, just below the Else shape. 2. In the Properties window, change the Message property by selecting order from the drop-down list. 3. Right-click the rightmost port surface and add a new configured port. Name the outbound port MinorOrderOut. This port will be a one-way send port that will have its port bindings specified later. Make sure you select sending for the port direction. 4. Connect the MinorOrderOut port to the Send shape, as shown in Figure 11-7.
CHAPTER 11 s ADVANCED ORCHESTRATIONS
Figure 11-7. Lesser-priced orders port configured and attached 5. Change the Name property of Send_1 to SendMinorOut. You now have a destination for your smaller orders that will not need to be involved in the approval process.
Adding Correlation Information
Before configuring the send and receive functionality for orders whose pricing is above $1,000, you need to add the correlation information so that the messages will have the appropriate context when passing out of (and back into) the orchestration. You ll do that by adding a correlation type and then the corresponding correlation set. 1. In the Orchestration View window, right-click the Correlation Types folder and select New Correlation Type. 2. Expand the Acme.Schemas.PropertySchema node. Highlight the OrderId node and select Add to move it to the right pane, as shown in Figure 11-8. Click OK to finish.
CHAPTER 11 s ADVANCED ORCHESTRATIONS
Figure 11-8. Adding the correlation type 3. Right-click the Correlation Sets folder in the Orchestration View window and select New Correlation Set. 4. In the Properties window for the new set, click the Correlation Type drop-down list and add the correlation type that you just created.
Configuring the Correlation Process
You now have a working and waiting correlation set and type. To use those, you ll need to create the appropriate Send and Receive shapes that will take advantage of the newfound ability. If an incoming order satisfies the greater than $1,000 requirement, you ll need to export the file to a send port and create a corresponding receive port to receive it after the accounting department has updated the file. You ll then need to handle the logic for approved and denied orders. When the order is sent out for approval, the corresponding <Status> element will be modified to either Approved or Denied. Based on that status code, you ll need to take the appropriate actions. In the current scenario, you ll simply dump approved orders into one folder and denied orders into another. 1. Add a Send shape, just below the LargeOrder shape. 2. Set the Message property of the shape to order. 3. Change the Name property to SendLargeOut. 4. Click the Initializing Correlation Sets drop-down list and select the only option listed.
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