[kepler-users] Enforcing array subtypes.

[Jianwu Wang]

Hi Tom,

     Glad to know it works for you.

     There are many exiting actors in Kepler and Ptolemy, where we can 
learn from them on many usages like ArrayType.

Best wishes

Sincerely yours

Jianwu Wang
jianwu at sdsc.edu
http://users.sdsc.edu/~jianwu/

Assistant Project Scientist
Scientific Workflow Automation Technologies (SWAT) Laboratory
San Diego Supercomputer Center
University of California, San Diego
San Diego, CA, U.S.A.


On 7/21/2010 4:33 PM, Thomas M. Parris wrote:
> Jianwu,
>
> Many thanks! This works like a charm.  I was having trouble navigating the
> structure of the ArrayType constructor, but I see how it works now.
> Brilliant!
>
> -- Tom
>
> -----Original Message-----
> From: Jianwu Wang [mailto:jianwu at sdsc.edu]
> Sent: Wednesday, July 21, 2010 6:20 PM
> To: Thomas M. Parris
> Cc: 'Kepler Users'
> Subject: Re: [kepler-users] Enforcing array subtypes.
>
> Hi Tom,
>
>       Now it is much clearer. Thanks.
>
>       I think you can add 'portparameter.setTypeEquals(new
> ArrayType(BaseType.INT));' before 'portparameter.setExpression("{1}");'
> to constrain its type. It will make sure the portparameter will only have a
> vector of integer. I just tried this way. If users specify wrong values, a
> dialogue will show up explaining the error.
>
>       It's not on my head how to constrain the port or portparameter to have
> between 1 and 5 value. Maybe you need define a separate Type that could only
> have value between 1 and 5, and replace the above BaseType.INT to this type?
>
> Best wishes
>
> Sincerely yours
>
> Jianwu Wang
> jianwu at sdsc.edu
> http://users.sdsc.edu/~jianwu/
>
> Assistant Project Scientist
> Scientific Workflow Automation Technologies (SWAT) Laboratory San Diego
> Supercomputer Center University of California, San Diego San Diego, CA,
> U.S.A.
>
>
> On 7/21/2010 2:28 PM, Thomas M. Parris wrote:
>    
>> Jianwu,
>>
>> Thanks for responding.  As I mentioned, I am writing an actor with a
>> portparameter (pp) that has a default value of {1}.  The program can
>> only make sense out of a vector of integers.
>>
>> Examples of valid values for pp include:
>> 	{1}
>> 	{1,2,3}
>> 	{4,6,7,10}
>>
>> Examples of invalid values for pp include:
>> 	{1.0}
>> 	{{1,2},{3,4}}
>> 	{"A", "B"}
>>
>> I'd like to enforce this by constraining the type of the pp such that:
>> 	o it must be an array
>> 	o it must by 1-dimensional
>> 	o it must be losslessly castable to an integer value.
>>
>> While it is not needed for this particular actor, I can also envision
>> situations where I would additionally constrain the minimum and
>> maximum number of elements in the vector (or perhaps other
>> dimensions).  An example, might be a program that sets gain parameters for
>>      
> a 5-channel data recorder.
>    
>> In this case, it would be helpful to constrain the port or
>> portparameter to have between 1 and 5 values.
>>
>> I see many of the pieces for what I need to do (some of which have ben
>> discovered since I sent my query), but have not yet figured out how to
>> string them together.
>>
>> -- Tom
>>
>> -----Original Message-----
>> From: Jianwu Wang [mailto:jianwu at sdsc.edu]
>> Sent: Wednesday, July 21, 2010 5:02 PM
>> To: Thomas M. Parris
>> Cc: 'Kepler Users'
>> Subject: Re: [kepler-users] Enforcing array subtypes.
>>
>> Hi Thomas,
>>
>>        Sorry, I don't quite get your question. Would you please explain
>> it more using concrete examples?
>>
>>
>> Best wishes
>>
>> Sincerely yours
>>
>> Jianwu Wang
>> jianwu at sdsc.edu
>> http://users.sdsc.edu/~jianwu/
>>
>> Assistant Project Scientist
>> Scientific Workflow Automation Technologies (SWAT) Laboratory San
>> Diego Supercomputer Center University of California, San Diego San
>> Diego, CA, U.S.A.
>>
>>
>> On 7/21/2010 12:32 PM, Thomas M. Parris wrote:
>>
>>      
>>> Greetings,
>>>
>>> I'm writing an actor with a PortParameter that is an array with a
>>> default value of {1}.  So far so good.
>>>
>>> Is there a way to ensure that the value is also a vector
>>> (1-dimensional as opposed to higher order nesting) and does not
>>> exceed integer?  At some point, I could also see wanting to set a
>>> minimum and maximum lengths of
>>>
>>>        
>> the
>>
>>      
>>> vector (but that is not required for now).
>>>
>>> I know how to do similar things with scalars, but not arrays.
>>>
>>> While I can set the initial value and type to array with:
>>>
>>> 	portparameter.setExpression("{1}");
>>>
>>> I can't seem to fnd a method that would be more specific than that
>>> short
>>>
>>>        
>> of
>>
>>      
>>> testing what I get in the actor and throwing an exception.
>>>
>>> Many thanks in advance for any help provided, Tom
>>> ----------------------------------------------------
>>> Thomas M. Parris
>>> Vice President
>>> ISciences, LLC
>>> ----------------------------------------------------
>>>
>>> _______________________________________________
>>> Kepler-users mailing list
>>> Kepler-users at kepler-project.org
>>> http://mercury.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users
>>>
>>>
>>>