Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/mdeo/UnavailableMemoryConstraint.xtend


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package hu.bme.mit.inf.dslreasoner.domains.cps.mdeo

import hu.bme.mit.inf.dslreasoner.domains.cps.CyberPhysicalSystem
import uk.ac.kcl.inf.mdeoptimiser.libraries.core.optimisation.IGuidanceFunction
import uk.ac.kcl.inf.mdeoptimiser.libraries.core.optimisation.interpreter.guidance.Solution

class UnavailableMemoryConstraint implements IGuidanceFunction {
	override getName() {
		"UnavailableMemory"
	}

	override computeFitness(Solution solution) {
		val cps = solution.model as CyberPhysicalSystem
		var int cost = 0
		for (hostType : cps.hostTypes) {
			for (host : hostType.instances) {
				val utilization = ResourceUtilizationUtil.getMemoryUtilization(host)
				val difference = utilization - hostType.defaultMemory
				if (difference > 0) {
					cost += difference
				}
			}
		}
		cost
	}

}