// StatusHistory returns a slice of past statuses for several entities.
func (c *Client) StatusHistory(request params.StatusHistoryRequests) params.StatusHistoryResults {
results := params.StatusHistoryResults{}
// TODO(perrito666) the contents of the loop could be split into
// a oneHistory method for clarity.
for _, request := range request.Requests {
filter := status.StatusHistoryFilter{
Size: request.Filter.Size,
Date: request.Filter.Date,
Delta: request.Filter.Delta,
}
if err := c.checkCanRead(); err != nil {
history := params.StatusHistoryResult{
Error: common.ServerError(err),
}
results.Results = append(results.Results, history)
continue
}
if err := filter.Validate(); err != nil {
history := params.StatusHistoryResult{
Error: common.ServerError(errors.Annotate(err, "cannot validate status history filter")),
}
results.Results = append(results.Results, history)
continue
}
var (
err error
hist []params.DetailedStatus
)
kind := status.HistoryKind(request.Kind)
err = errors.NotValidf("%q requires a unit, got %T", kind, request.Tag)
switch kind {
case status.KindUnit, status.KindWorkload, status.KindUnitAgent:
var u names.UnitTag
if u, err = names.ParseUnitTag(request.Tag); err == nil {
hist, err = c.unitStatusHistory(u, filter, kind)
}
default:
var m names.MachineTag
if m, err = names.ParseMachineTag(request.Tag); err == nil {
hist, err = c.machineStatusHistory(m, filter, kind)
}
}
if err == nil {
sort.Sort(byTime(hist))
}
results.Results = append(results.Results,
params.StatusHistoryResult{
History: params.History{Statuses: hist},
Error: common.ServerError(errors.Annotatef(err, "fetching status history for %q", request.Tag)),
})
}
return results
}
func (c *statusHistoryCommand) Run(ctx *cmd.Context) error {
apiclient, err := c.NewAPIClient()
if err != nil {
return errors.Trace(err)
}
defer apiclient.Close()
kind := status.HistoryKind(c.outputContent)
var delta *time.Duration
if c.backlogSizeDays != 0 {
t := time.Duration(c.backlogSizeDays*24) * time.Hour
delta = &t
}
filterArgs := status.StatusHistoryFilter{
Size: c.backlogSize,
Delta: delta,
}
if !c.date.IsZero() {
filterArgs.Date = &c.date
}
var tag names.Tag
switch kind {
case status.KindUnit, status.KindWorkload, status.KindUnitAgent:
if !names.IsValidUnit(c.entityName) {
return errors.Errorf("%q is not a valid name for a %s", c.entityName, kind)
}
tag = names.NewUnitTag(c.entityName)
default:
if !names.IsValidMachine(c.entityName) {
return errors.Errorf("%q is not a valid name for a %s", c.entityName, kind)
}
tag = names.NewMachineTag(c.entityName)
}
statuses, err := apiclient.StatusHistory(kind, tag, filterArgs)
historyLen := len(statuses)
if err != nil {
if historyLen == 0 {
return errors.Trace(err)
}
// Display any error, but continue to print status if some was returned
fmt.Fprintf(ctx.Stderr, "%v\n", err)
}
if historyLen == 0 {
return errors.Errorf("no status history available")
}
table := [][]string{{"TIME", "TYPE", "STATUS", "MESSAGE"}}
lengths := []int{1, 1, 1, 1}
statuses = statuses.SquashLogs(1)
statuses = statuses.SquashLogs(2)
statuses = statuses.SquashLogs(3)
for _, v := range statuses {
fields := []string{common.FormatTime(v.Since, c.isoTime), string(v.Kind), string(v.Status), v.Info}
for k, v := range fields {
if len(v) > lengths[k] {
lengths[k] = len(v)
}
}
table = append(table, fields)
}
f := fmt.Sprintf("%%-%ds\t%%-%ds\t%%-%ds\t%%-%ds\n", lengths[0], lengths[1], lengths[2], lengths[3])
for _, v := range table {
fmt.Printf(f, v[0], v[1], v[2], v[3])
}
return nil
}
func (s statuses) StatusHistory(filter status.StatusHistoryFilter) ([]status.StatusInfo, error) {
if filter.Size > len(s) {
filter.Size = len(s)
}
return s[:filter.Size], nil
}