[OPT-1438] I can request the duration between two flow nodes grouped by start date using the REST-API

AT:

I can evaluate the duration between two flow nodes grouped by start date using the REST-API
The view needs to be set to process instance duration and the groupBy set to start date
The duration states the time from the start of the first flow node to the end time of the second flow node
If there are more instances of the start flow node and end flow node, the following algorithm applies to fetch the correct instances:
- select the youngest start flow node instance
- find the end flow node instance, which has the closest start time to the start flow node instance

Johannes added a comment - 12/Sep/18 4:12 PM

Hint: Since the ReportDataHelper class became very large I created ~~OPT-1446~~ to refactor class.

Johannes added a comment - 12/Sep/18 4:12 PM Hint: Since the ReportDataHelper class became very large I created OPT-1446 to refactor class.

Camunda Optimize