Create monitor for item acceptance/publishing

monitor/item.go

@@ -0,0 +1,44 @@
+package monitor
+
+import (
+	"time"
+
+	"github.com/golang-collections/go-datastructures/queue"
+)
+
+type Item struct {
+	url      string
+	interval time.Duration
+	next     time.Time
+}
+
+func NewItem(url string, interval time.Duration) *Item {
+	return &Item{
+		url:      url,
+		interval: interval,
+		next:     time.Now(),
+	}
+}
+
+func (item *Item) Compare(other queue.Item) int {
+	j, ok := other.(*Item)
+	if !ok {
+		return 0
+	}
+	if item.next.Before(j.next) {
+		return -1
+	} else if item.next.After(j.next) {
+		return 1
+	}
+	if item.interval < j.interval {
+		return -1
+	} else if item.interval > j.interval {
+		return 1
+	}
+	return 0
+}
+
+func (item *Item) increment() *Item {
+	item.next = time.Now().Add(item.interval)
+	return item
+}