// processUnitAndAgentStatus retrieves status information for both unit and unitAgents.
func processUnitAndAgentStatus(unit *state.Unit, status *params.UnitStatus) {
status.UnitAgent, status.Workload = processUnitStatus(unit)
// Legacy fields required until Juju 2.0.
// We only display pending, started, error, stopped.
var ok bool
legacyState, ok := state.TranslateToLegacyAgentState(
state.Status(status.UnitAgent.Status),
state.Status(status.Workload.Status),
status.Workload.Info,
)
if !ok {
logger.Warningf(
"translate to legacy status encounted unexpected workload status %q and agent status %q",
status.Workload.Status, status.UnitAgent.Status)
}
status.AgentState = params.Status(legacyState)
if status.AgentState == params.StatusError {
status.AgentStateInfo = status.Workload.Info
}
status.AgentVersion = status.UnitAgent.Version
status.Life = status.UnitAgent.Life
status.Err = status.UnitAgent.Err
processUnitLost(unit, status)
return
}
func (s *statusSuite) TestTranslateLegacyAgentState(c *gc.C) {
for i, test := range []struct {
agentStatus state.Status
workloadStatus state.Status
workloadMessage string
expected state.Status
}{
{
agentStatus: state.StatusAllocating,
expected: state.StatusPending,
}, {
agentStatus: state.StatusError,
expected: state.StatusError,
}, {
agentStatus: state.StatusIdle,
workloadStatus: state.StatusMaintenance,
expected: state.StatusPending,
workloadMessage: "installing charm software",
}, {
agentStatus: state.StatusIdle,
workloadStatus: state.StatusMaintenance,
expected: state.StatusStarted,
workloadMessage: "backing up",
}, {
agentStatus: state.StatusIdle,
workloadStatus: state.StatusTerminated,
expected: state.StatusStopped,
}, {
agentStatus: state.StatusIdle,
workloadStatus: state.StatusBlocked,
expected: state.StatusStarted,
},
} {
c.Logf("test %d", i)
legacy, ok := state.TranslateToLegacyAgentState(test.agentStatus, test.workloadStatus, test.workloadMessage)
c.Check(ok, jc.IsTrue)
c.Check(legacy, gc.Equals, test.expected)
}
}