Hi all,

This email is to say hi and to let you know that we at Umass Med School have 
decided to use Airavata as a framework for building a Gateway to our cluster. I 
am employed as an HPC Scientific Programmer and will be leading (and probably 
doing it mostly myself :)) this project. If you want more details regarding our 
plans, please let me know, since I don't want to bore you with the details in 
this first email.

I also have a technical question. I've added simple applications, along the 
lines of Add, Echo, Multiply ... etc. without a problem. I've also added an 
application that takes an input file as an InputDataObjectType of type 
DataType.URI. However, I must be doing something wrong when trying to generate 
output files i.e., OutputDataObjectType of type DataType.URI.

RegisterSampleApplicationsUtils.createAppOutput("output_file", "", 
DataType.URI);

It seems to work fine with strings still, since if in my script I put something 
like this:

echo 
"output_file='file://localhost:///opt/lampp/htdocs/PHP-Reference-Gateway/experimentData/spiros340e527dece195a74ac7455fbcc6f6fa/spiros_c.eps'"

Then it picks up the string.

My question is: how do I declare in the script that I want an actual file, not 
a string?
I've tried:

output_file='file://localhost:///opt/lampp/htdocs/PHP-Reference-Gateway/experimentData/spiros340e527dece195a74ac7455fbcc6f6fa/spiros_c.eps'

output_file="file://localhost:///opt/lampp/htdocs/PHP-Reference-Gateway/experimentData/spiros340e527dece195a74ac7455fbcc6f6fa/spiros_c.eps"

and with the keywords "set", "declare", and "export" in front of "output_file" 
but have had no success.

I think I'm missing something in the whole concept of output files, but as a 
first step to better understand output files within Airavata, I would like to 
know how to hardcode sth. like that in the script and see it appear as a... URI 
type? For example, as a string it shows up like this:

array(1) { [0]=> object(Airavata\Model\Workspace\Experiment\DataObjectType)#15 
(4) { ["key"]=> string(11) "output_file" ["value"]=> string(127) 
"'file://localhost:///opt/lampp/htdocs/PHP-Reference-Gateway/experimentData/spiros340e527dece195a74ac7455fbcc6f6fa/spiros_c.eps'"
 ["type"]=> int(0) ["metaData"]=> NULL } }

But the array is empty when I try one of the above lines in the script 
(output_file= ...).

Thanks in advance,
Spiros

Reply via email to