added uptime inspector

Author: deven96

inspector/loadavg.go

@@ -14,7 +14,7 @@ type LoadAvgMetrics struct {
 	Load15M float64
 }
 
-// LoadAvg : Parsing the /proc/loadavg output for disk monitoring
+// LoadAvg : Parsing the /proc/loadavg output for load average monitoring
 type LoadAvg struct {
 	fields
 	Values LoadAvgMetrics

inspector/uptime.go

@@ -0,0 +1,48 @@
+package inspector
+
+import (
+	"strconv"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+)
+
+// UptimeMetrics : Metrics used by Uptime
+type UptimeMetrics struct {
+	Up   float64
+	Idle float64
+}
+
+// Uptime : Parsing the /proc/uptime output for uptime monitoring
+type Uptime struct {
+	fields
+	Values UptimeMetrics
+}
+
+// Parse : run custom parsing on output of the command
+func (i *Uptime) Parse(output string) {
+	var err error
+	log.Debug("Parsing ouput string in Uptime inspector")
+	columns := strings.Fields(output)
+	Up, err := strconv.ParseFloat(columns[0], 64)
+	Idle, err := strconv.ParseFloat(columns[1], 64)
+	if err != nil {
+		log.Fatalf(`Error Parsing Uptime: %s `, err)
+	}
+
+	i.Values = UptimeMetrics{
+		Up,
+		Idle,
+	}
+}
+
+// NewUptime : Initialize a new Uptime instance
+func NewUptime() *Uptime {
+	return &Uptime{
+		fields: fields{
+			Type:     File,
+			FilePath: `/proc/uptime`,
+		},
+	}
+
+}

integration/integration_test.go

@@ -88,3 +88,16 @@ func TestLoadAvgonSSH(t *testing.T) {
 		t.Errorf("%f", i.Values.Load1M)
 	}
 }
+
+func TestUptimeonSSH(t *testing.T) {
+	d := driver.NewSSHForTest()
+	i := inspector.NewUptime()
+	output, err := d.ReadFile(i.String())
+	if err != nil {
+		t.Error(err)
+	}
+	i.Parse(output)
+	if i.Values.Up == 0 {
+		t.Errorf("%f", i.Values.Up)
+	}
+}

integration/integration_unix_test.go

@@ -105,7 +105,7 @@ func TestCustomonLocal(t *testing.T) {
 }
 
 func TestLoadAvgonLocal(t *testing.T) {
-	d := driver.NewSSHForTest()
+	d := driver.Local{}
 	i := inspector.NewLoadAvg()
 	output, err := d.ReadFile(i.String())
 	if err != nil {
@@ -117,3 +117,17 @@ func TestLoadAvgonLocal(t *testing.T) {
 	}
 	fmt.Printf("%#v", i.Values)
 }
+
+func TestUptimeonLocal(t *testing.T) {
+	d := driver.Local{}
+	i := inspector.NewUptime()
+	output, err := d.ReadFile(i.String())
+	if err != nil {
+		t.Error(err)
+	}
+	i.Parse(output)
+	if i.Values.Up == 0 {
+		t.Errorf("%f", i.Values.Up)
+	}
+	fmt.Printf("%#v", i.Values)
+}