APIv2 review corrections #3

The third pass of corrections for the APIv2.

Signed-off-by: Brent Baude <bbaude@redhat.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/libpod/pod_status.go b/libpod/pod_status.go
new file mode 100644
index 000000000..3a44c4457
--- /dev/null
+++ b/libpod/pod_status.go
@@ -0,0 +1,59 @@
+package libpod
+
+import "github.com/containers/libpod/libpod/define"
+
+// GetPodStatus 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) GetPodStatus() (string, error) {
+	ctrStatuses, err := p.Status()
+	if err != nil {
+		return define.PodStateErrored, err
+	}
+	return CreatePodStatusResults(ctrStatuses)
+}
+
+func CreatePodStatusResults(ctrStatuses map[string]define.ContainerStatus) (string, error) {
+	ctrNum := len(ctrStatuses)
+	if ctrNum == 0 {
+		return define.PodStateCreated, nil
+	}
+	statuses := map[string]int{
+		define.PodStateStopped: 0,
+		define.PodStateRunning: 0,
+		define.PodStatePaused:  0,
+		define.PodStateCreated: 0,
+		define.PodStateErrored: 0,
+	}
+	for _, ctrStatus := range ctrStatuses {
+		switch ctrStatus {
+		case define.ContainerStateExited:
+			fallthrough
+		case define.ContainerStateStopped:
+			statuses[define.PodStateStopped]++
+		case define.ContainerStateRunning:
+			statuses[define.PodStateRunning]++
+		case define.ContainerStatePaused:
+			statuses[define.PodStatePaused]++
+		case define.ContainerStateCreated, define.ContainerStateConfigured:
+			statuses[define.PodStateCreated]++
+		default:
+			statuses[define.PodStateErrored]++
+		}
+	}
+
+	switch {
+	case statuses[define.PodStateRunning] > 0:
+		return define.PodStateRunning, nil
+	case statuses[define.PodStatePaused] == ctrNum:
+		return define.PodStatePaused, nil
+	case statuses[define.PodStateStopped] == ctrNum:
+		return define.PodStateExited, nil
+	case statuses[define.PodStateStopped] > 0:
+		return define.PodStateStopped, nil
+	case statuses[define.PodStateErrored] > 0:
+		return define.PodStateErrored, nil
+	default:
+		return define.PodStateCreated, nil
+	}
+}