dahu 2024.2.0

"Python lightweight, plugin based, data analysis engine"

Software chunks initially developped for ID02 upgrade program in 2012-2014.

Dahu is a lightweight plugin based framework…

… technically a JSON-RPC server over Tango:

• plugins can be class or can be generated from any state-less function written in Python

• a plugin is executed within a job, each job lives in its own thread.

• plugins have empty constructors plus 4 methods (or more)

• setup allows to set the input parameters. Sanitization is performed here.

• process does the work.

• teardown sets the output, the logging and cleans up (if needed).

• abort can be used to stop the processing if a plugin is a daemon.

• the job is responsible for serializing on disk of the plugin’s input and output

• jobs can be launched using the tango interface (or other …)

• plugins have a single input and output, they are simple JSON-serializable dictionaries.