[kepler-users] FW: Enforcing array subtypes.

[Thomas M. Parris]

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
>>
>>