add vendoring with go dep

vendor/github.com/influxdata/influxdb/stress/v2/statement/template.go

@@ -0,0 +1,47 @@
+package statement
+
+// A Template contains all information to fill in templated variables in inset and query statements
+type Template struct {
+	Tags     []string
+	Function *Function
+}
+
+// Templates are a collection of Template
+type Templates []*Template
+
+// Init makes Stringers out of the Templates for quick point creation
+func (t Templates) Init(seriesCount int) Stringers {
+	arr := make([]Stringer, len(t))
+	for i, tmp := range t {
+		if len(tmp.Tags) == 0 {
+			arr[i] = tmp.Function.NewStringer(seriesCount)
+			continue
+		}
+		arr[i] = tmp.NewTagFunc()
+	}
+	return arr
+}
+
+// Calculates the number of series implied by a template
+func (t *Template) numSeries() int {
+	// If !t.Tags then tag cardinality is t.Function.Count
+	if len(t.Tags) == 0 {
+		return t.Function.Count
+	}
+	// Else tag cardinality is len(t.Tags)
+	return len(t.Tags)
+}
+
+// NewTagFunc returns a Stringer that loops through the given tags
+func (t *Template) NewTagFunc() Stringer {
+	if len(t.Tags) == 0 {
+		return func() string { return "EMPTY TAGS" }
+	}
+
+	i := 0
+	return func() string {
+		s := t.Tags[i]
+		i = (i + 1) % len(t.Tags)
+		return s
+	}
+}