Moved getPodStatus to pod API to be used in varlink

Signed-off-by: haircommander <pehunt@redhat.com>

Closes: #1275
Approved by: mheon

cmd/podman/pod_ps.go

@@ -296,7 +296,7 @@ func generatePodFilterFuncs(filter, filterValue string, runtime *libpod.Runtime)
 			return nil, errors.Errorf("%s is not a valid status", filterValue)
 		}
 		return func(p *libpod.Pod) bool {
-			ctr_statuses, err := p.Status()
+			ctr_statuses, err := p.ContainerStatus()
 			if err != nil {
 				return false
 			}
@@ -324,7 +324,7 @@ func generatePodFilterFuncs(filter, filterValue string, runtime *libpod.Runtime)
 			return nil, errors.Errorf("%s is not a valid pod status", filterValue)
 		}
 		return func(p *libpod.Pod) bool {
-			status, err := getPodStatus(p)
+			status, err := p.Status()
 			if err != nil {
 				return false
 			}
@@ -460,52 +460,6 @@ func getPodTemplateOutput(psParams []podPsJSONParams, opts podPsOptions) ([]podP
 	return psOutput, nil
 }
 
-func getPodStatus(pod *libpod.Pod) (string, error) {
-	ctr_statuses, err := pod.Status()
-	if err != nil {
-		return ERROR, err
-	}
-	ctrNum := len(ctr_statuses)
-	if ctrNum == 0 {
-		return CREATED, nil
-	}
-	statuses := map[string]int{
-		STOPPED: 0,
-		RUNNING: 0,
-		PAUSED:  0,
-		CREATED: 0,
-		ERROR:   0,
-	}
-	for _, ctr_status := range ctr_statuses {
-		switch ctr_status {
-		case libpod.ContainerStateStopped:
-			statuses[STOPPED]++
-		case libpod.ContainerStateRunning:
-			statuses[RUNNING]++
-		case libpod.ContainerStatePaused:
-			statuses[PAUSED]++
-		case libpod.ContainerStateCreated, libpod.ContainerStateConfigured:
-			statuses[CREATED]++
-		default:
-			statuses[ERROR]++
-		}
-	}
-
-	if statuses[RUNNING] > 0 {
-		return RUNNING, nil
-	} else if statuses[PAUSED] == ctrNum {
-		return PAUSED, nil
-	} else if statuses[STOPPED] == ctrNum {
-		return EXITED, nil
-	} else if statuses[STOPPED] > 0 {
-		return STOPPED, nil
-	} else if statuses[ERROR] > 0 {
-		return ERROR, nil
-	} else {
-		return CREATED, nil
-	}
-}
-
 // getAndSortPodJSONOutput returns the container info in its raw, sorted form
 func getAndSortPodJSONParams(pods []*libpod.Pod, opts podPsOptions, runtime *libpod.Runtime) ([]podPsJSONParams, error) {
 	var (
@@ -519,7 +473,7 @@ func getAndSortPodJSONParams(pods []*libpod.Pod, opts podPsOptions, runtime *lib
 			return nil, err
 		}
 		ctrNum := len(ctrs)
-		status, err := getPodStatus(pod)
+		status, err := pod.Status()
 		if err != nil {
 			return nil, err
 		}

libpod/pod_api.go

@@ -8,6 +8,15 @@ import (
 	"github.com/ulule/deepcopier"
 )
 
+const (
+	stopped = "Stopped"
+	running = "Running"
+	paused  = "Paused"
+	exited  = "Exited"
+	errored = "Error"
+	created = "Created"
+)
+
 // Start starts all containers within a pod
 // It combines the effects of Init() and Start() on a container
 // If a container has already been initialized it will be started,
@@ -362,9 +371,9 @@ func (p *Pod) Kill(signal uint) (map[string]error, error) {
 	return nil, nil
 }
 
-// Status gets the status of all containers in the pod
+// ContainerStatus gets the status of all containers in the pod
 // Returns a map of Container ID to Container Status
-func (p *Pod) Status() (map[string]ContainerStatus, error) {
+func (p *Pod) ContainerStatus() (map[string]ContainerStatus, error) {
 	p.lock.Lock()
 	defer p.lock.Unlock()
 
@@ -396,6 +405,54 @@ func (p *Pod) Status() (map[string]ContainerStatus, error) {
 	return status, nil
 }
 
+// Status determines the status of the pod based on the
+// statuses of the containers in the pod.
+// Returns a string representation of the pod status
+func (p *Pod) Status() (string, error) {
+	ctrStatuses, err := p.ContainerStatus()
+	if err != nil {
+		return errored, err
+	}
+	ctrNum := len(ctrStatuses)
+	if ctrNum == 0 {
+		return created, nil
+	}
+	statuses := map[string]int{
+		stopped: 0,
+		running: 0,
+		paused:  0,
+		created: 0,
+		errored: 0,
+	}
+	for _, ctrStatus := range ctrStatuses {
+		switch ctrStatus {
+		case ContainerStateStopped:
+			statuses[stopped]++
+		case ContainerStateRunning:
+			statuses[running]++
+		case ContainerStatePaused:
+			statuses[paused]++
+		case ContainerStateCreated, ContainerStateConfigured:
+			statuses[created]++
+		default:
+			statuses[errored]++
+		}
+	}
+
+	if statuses[running] > 0 {
+		return running, nil
+	} else if statuses[paused] == ctrNum {
+		return paused, nil
+	} else if statuses[stopped] == ctrNum {
+		return exited, nil
+	} else if statuses[stopped] > 0 {
+		return stopped, nil
+	} else if statuses[errored] > 0 {
+		return errored, nil
+	}
+	return created, nil
+}
+
 // Inspect returns a PodInspect struct to describe the pod
 func (p *Pod) Inspect() (*PodInspect, error) {
 	var (