Changed the Hosts from list to a set of hosts using a map with key as hostname and value as an empty struct

utilities/offerUtils/offerUtils.go

@@ -1,62 +0,0 @@
-package offerUtils
-
-import (
-	mesos "github.com/mesos/mesos-go/mesosproto"
-	"strings"
-)
-
-func OfferAgg(offer *mesos.Offer) (float64, float64, float64) {
-	var cpus, mem, watts float64
-
-	for _, resource := range offer.Resources {
-		switch resource.GetName() {
-		case "cpus":
-			cpus += *resource.GetScalar().Value
-		case "mem":
-			mem += *resource.GetScalar().Value
-		case "watts":
-			watts += *resource.GetScalar().Value
-		}
-	}
-
-	return cpus, mem, watts
-}
-
-// Determine the power class of the host in the offer
-func PowerClass(offer *mesos.Offer) string {
-	var powerClass string
-	for _, attr := range offer.GetAttributes() {
-		if attr.GetName() == "class" {
-			powerClass = attr.GetText().GetValue()
-		}
-	}
-	return powerClass
-}
-
-// Implements the sort.Sort interface to sort Offers based on CPU.
-// TODO: Have a generic sorter that sorts based on a defined requirement (CPU, RAM, DISK or Watts)
-type OffersSorter []*mesos.Offer
-
-func (offersSorter OffersSorter) Len() int {
-	return len(offersSorter)
-}
-
-func (offersSorter OffersSorter) Swap(i, j int) {
-	offersSorter[i], offersSorter[j] = offersSorter[j], offersSorter[i]
-}
-
-func (offersSorter OffersSorter) Less(i, j int) bool {
-	// getting CPU resource availability of offersSorter[i]
-	cpu1, _, _ := OfferAgg(offersSorter[i])
-	// getting CPU resource availability of offersSorter[j]
-	cpu2, _, _ := OfferAgg(offersSorter[j])
-	return cpu1 <= cpu2
-}
-
-// Is there a mismatch between the task's host requirement and the host corresponding to the offer.
-func HostMismatch(offerHost string, taskHost string) bool {
-	if taskHost != "" && !strings.HasPrefix(offerHost, taskHost) {
-		return true
-	}
-	return false
-}