The code coverage plugin currently sets the results of a build to stable, unstable or failed based on an evaluation of the old model in CoverageProcessor#processThresholds.

A similar functionality is required for the new model in CoverageNode: this new functionality should create a QualityGateStatus (similar to the warnings plugin) based on a list of QualityGates for a specific CoverageNode (or for the aggregated coverage metric results of the CoverageNode). The evaluation should be logged into a simple logger instance like in QualityGateEvaluator#FormattedLogger.
A similar functionality is available in the warnings plugin: it sets the quality gate result based on an evaluation of the number of warnings:

• QualityGateEvaluator
• QualityGate
• QualityGateStatus

A quality gate has three properties:

• the percentage that must be achieved in order to pass the quality gate
• the type of coverage that will be evaluated (Class, Line, Branch, etc.)
• the build status that should be used if the quality gate is not passed (failed or unstable)