Support for using language workbench outputs in activities

[barnettwilliam]

The platform should support activities where the output of language workbenches can be used, for example, model-to-model transformations using ETL of the created language.

• Create an example activity

Input conversion

Modify the Epsilon ETL tool service to accept XMI inputs.

• Epsilon tool service XMI support  #177

Output conversion

Add support for automatic conversion of platform tool function outputs.

• tool function output type conversion

[barnettwilliam]

Activity created and available on branch mdenet/platform-examples-private/activity-using-xtext-output

[szschaler]

The activity currently doesn't have an action for running the ETL. I assume this is to be defined?

[barnettwilliam]

Yes, I'm currently modifying the Epsilon micronaut function to accept Xmi and will add it when testing

[barnettwilliam]

moved to #177

[barnettwilliam]

Activity created and available on branch mdenet/platform-examples-private/activity-using-xtext-output

The example activity is working as of commit when used in conjunction with the modified Epsilon tool service pending PR epsilonlabs/playground-micronaut#1 and PR mdenet/platformtools#56 fixed Xtext project file structure.

The error in the original turtles-copy example that has identical metamodels should be fixed separately as suggested epsilonlabs/playground-micronaut#2 (comment).

Deferred mdenet/platformtools#56 support

So that mdenet/platformtools#56 can be deferred to support the ongoing module teaching, the following branch provides a version of the example activity in the original Xtext project structure.
https://github.com/mdenet/platform-examples-private/tree/activity-using-xtext-output-old-project

[szschaler]

For the current use case, we don't need function output conversion, so this is complete.