Eclipse CD5405 Manuel d'utilisateur télécharger pdf (Page 23)

Step: Read S

(ReadSHandler) Assigning SensorData object: Process COMPLETED successfully.

Now, you should try extending this process by providing the agent code for the postrequisite

and the other leaf steps. The structure for the agent should be similar to what you already

have. Here is a description of what should happen for the other steps:

•

Check S: Complete if the sensor data value is between -60 and 60. Throw

OutOfRangeException otherwise.

•

Adjust S: Change the sensor value to (1.0936 * input sensor value) + 0.5505

•

Calc Q: Calculate the DischargeData as

•

If sensor value == 0, set discharge value to 0

•

If sensor value <= 25.4, set discharge value to 0.02391 * sensor value

2.5

•

Otherwise, set discharge value to 77.74 + 7.0001 * (sensor value - 25.4)

1.5

•

Output Q: Write the discharge data to a file whose name is provided to the agent as a 2

parameter, after the input file name.

Congratualtions! You have written and executed a Little-JIL process!

13.For More Information

There is much more that one could learn about Little-JIL. The most complete reference is

the Little-JIL Language manual, available at http://laser.cs.umass.edu/techreports/

06-51.pdf. It is not necessary to understand everything in there, especially initially. The

features of Little-JIL that did not get used in the tutorial but that you will most likely depend

on the most are the various step kinds and the different types of continuation semantics

associated with exception handlers. Take a look at those so that you have a sense of what

is available. Mostly you will learn things as you need them.

You should also be aware of the Little-JIL wiki, which I have referred to a few times in this

tutorial. It is far from complete, but it may have useful tips and is probably something we

should contribute to as we gain experience with Little-JIL. It is available at https://

collab.cs.umass.edu/groups/laser_library/wiki/debb5/Little-JIL_Tutorial.html.

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Eclipse CD5405 Manuel d'utilisateur Page 23