This is a collection of process engines prototypes based on an existing implementation of the complete Workflow.

All Process Engines receive their instructions from the corresponding *.flow-files, which are then parsed into a format which can be turned into a corresponding Workflow using their own Process Engines.

Currently Prototypes for the Fireworks Process Engine and the Common Workflow Language (CWL) Specification has been created

All examples have been implemented with Python v3.7

This is a Process Engine using Fireworks.

It can be executed like this:

python firework_engine.py -p . -wf ./example_awk.flow

python firework_engine.py -p . -wf ./example_sort_cp.flow

Additional arguments are:

After a task was executed the status can be checked with inside the run path:

python firework_engine.py -p . -s True

This is a Process Engine based on the Common Workflow Language (CWL) Specification

For this project, we have made use of the following package:

pip install cwlref-runner

The Package contains the CWL-Implementation (cwltool) and a runner (cwl-runner) which can be used to execute the Workflow. Alternatively, other runners should also be viable for use, as long as they comform to the CWL - Specification, although this has not been tested yet.

The overall idea behind this implementation is a conversion of the _.flow-Files into a corresponding representation of _.cwl- and *.yml-Files, required for the excution of a Process Engine abiding the CWL-Specification.

It can be executed like this:

python3 cwl_engine.py -p . -wf example_awk.flow

python cwl_engine.py -p . -wf example_sort_cp.flow

Additional arguments are:

After a task was executed the status can be checked with inside the run path:

python cwl_engine.py -p . -s True