Porting Themis to Scala

An experiment in using Augment to port Themis to Scala.

Chat version

First attempt was to use the chat functionality in Augment. The output of this process can be found here. A transcript of the entire conversation between myself and Augment can be found here.

Remaining Problems

The transcript above shows what was necessary to get to a version of Themis that would at least compile with Scala 3.5.1. This didn't leave us with a functioning app, however... there were still multiple significant problems in place:

• Configuration process was converted from YAML to use Typesafe Config
• All commands are passed a map of all clusters so that they can operate against any target. None of this logic is included in the Scala impl.
• Random generation of test data in InsertCommand.java is just gone. InsertCommand.scala expects data to be passed via a command-line parameter.
• ClusterName.java defines the enum which describes which cluster commands should be executed against. We expect to find configs at some of these names in the configuration YAML. ClusterName.scala is just a case class.
• SchemaCommand.java is used to setup the test schema; SchemaCommand.scala is (apparently) trying to display schema information. It doesn’t actually create any keyspaces or tables.