AT:

• duplicated code in the user task duration/frequency commands and integration tests are being removed and only the changing parts are being kept

Hint:
It's already quite complicated to understand how the query is being build. Maybe we should think about a different way of executing the queries instead of adding to the complex structure.

Affected components:

• user task integration tests
• user task commands
• ProcessReportDataCreator
• SingleReportEvaluator
• ProcessReportDataBuilderHelper

Possible refactorings:

• Add report data creation to command itself
• Add report builder class
• Command is build up by a list of aggregation steps. Each step conatins buildAggregation and processAggregation methods