Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/outputs/health/compares.go

@@ -0,0 +1,76 @@
+package health
+
+import (
+	"github.com/influxdata/telegraf"
+)
+
+type Compares struct {
+	Field string   `toml:"field"`
+	GT    *float64 `toml:"gt"`
+	GE    *float64 `toml:"ge"`
+	LT    *float64 `toml:"lt"`
+	LE    *float64 `toml:"le"`
+	EQ    *float64 `toml:"eq"`
+	NE    *float64 `toml:"ne"`
+}
+
+func (c *Compares) runChecks(fv float64) bool {
+	if c.GT != nil && !(fv > *c.GT) {
+		return false
+	}
+	if c.GE != nil && !(fv >= *c.GE) {
+		return false
+	}
+	if c.LT != nil && !(fv < *c.LT) {
+		return false
+	}
+	if c.LE != nil && !(fv <= *c.LE) {
+		return false
+	}
+	if c.EQ != nil && !(fv == *c.EQ) {
+		return false
+	}
+	if c.NE != nil && !(fv != *c.NE) {
+		return false
+	}
+	return true
+}
+
+func (c *Compares) Check(metrics []telegraf.Metric) bool {
+	success := true
+	for _, m := range metrics {
+		fv, ok := m.GetField(c.Field)
+		if !ok {
+			continue
+		}
+
+		f, ok := asFloat(fv)
+		if !ok {
+			return false
+		}
+
+		result := c.runChecks(f)
+		if !result {
+			success = false
+		}
+	}
+	return success
+}
+
+func asFloat(fv interface{}) (float64, bool) {
+	switch v := fv.(type) {
+	case int64:
+		return float64(v), true
+	case float64:
+		return v, true
+	case uint64:
+		return float64(v), true
+	case bool:
+		if v {
+			return 1.0, true
+		}
+		return 0.0, true
+	default:
+		return 0.0, false
+	}
+}