Allow workflow intepreter to start executing even when all the "Input Node"
valuese are not set
-----------------------------------------------------------------------------------------------
Key: AIRAVATA-298
URL: https://issues.apache.org/jira/browse/AIRAVATA-298
Project: Airavata
Issue Type: New Feature
Components: XBaya
Reporter: Chathura Herath
Assignee: Lahiru Gunathilake
Priority: Minor
Fix For: 0.4-INCUBATING
Motivating usecase from LCCI is as follows.
User plans to run a workflow with two components(A,B). Each of the components
have input nodes attached to them. Also B follows A so output of A goes to an
input of B.
In this particular situation the user shall know the iput to component A, but
does not know input to component B until such time component A finishes and
user gets a chance to open and evaluate the output (we shall differ discussion
on how we can make it easy to evealuate the outputs for later).
Once the user evaluates the output of A he will know what to put into the input
Node of B.
Currently we ask all the inputs at the begining of the workflow launch thus
workflow interpreter assumes that all the input nodes are filled. So we make
the input boxes to FInish state at the very begining.
Now we simply have to make some input boxes Gray(the ones for which we got the
input) and others to be waiting/or some special state.
For workflowinterpreter execution purposes this shall be as any other
waiting(yellow) node. If at any point of time user click on config of such a
input node and set the input value, we can move them to the finished state and
workflow intepreter shall handle the rest of the execution.
One optimization to keep in mind though is, during execution, if ALL the
remaining waiting nodes in a workflow directly or transitively wait on such an
input, workflow should goto a PAUSE mode until such time user enters a
inputvalue.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
