func (h *ActualLRPHandler) GetAllByProcessGuid(w http.ResponseWriter, req *http.Request) {
processGuid := req.FormValue(":process_guid")
logger := h.logger.Session("get-all-by-process-guid", lager.Data{
"ProcessGuid": processGuid,
})
if processGuid == "" {
err := errors.New("process_guid missing from request")
logger.Error("missing-process-guid", err)
writeBadRequestResponse(w, receptor.InvalidRequest, err)
return
}
actualLRPGroupsByIndex, err := h.legacyBBS.ActualLRPGroupsByProcessGuid(logger, processGuid)
if err != nil {
logger.Error("failed-to-fetch-actual-lrp-groups-by-process-guid", err)
writeUnknownErrorResponse(w, err)
return
}
responses := make([]receptor.ActualLRPResponse, 0, len(actualLRPGroupsByIndex))
for _, actualLRPGroup := range actualLRPGroupsByIndex {
lrp, evacuating, err := actualLRPGroup.Resolve()
if err != nil {
continue
}
responses = append(responses, serialization.ActualLRPToResponse(*lrp, evacuating))
}
writeJSONResponse(w, http.StatusOK, responses)
}
func (w *watcher) watchActual(logger lager.Logger) (chan<- bool, <-chan error) {
return w.bbs.WatchForActualLRPChanges(logger,
func(created models.ActualLRP, evacuating bool) {
logger.Debug("handling-actual-create")
w.hub.Emit(receptor.NewActualLRPCreatedEvent(serialization.ActualLRPToResponse(created, evacuating)))
},
func(changed models.ActualLRPChange, evacuating bool) {
logger.Debug("handling-actual-change")
w.hub.Emit(receptor.NewActualLRPChangedEvent(
serialization.ActualLRPToResponse(changed.Before, evacuating),
serialization.ActualLRPToResponse(changed.After, evacuating),
))
},
func(deleted models.ActualLRP, evacuating bool) {
logger.Debug("handling-actual-delete")
w.hub.Emit(receptor.NewActualLRPRemovedEvent(serialization.ActualLRPToResponse(deleted, evacuating)))
})
}
func (h *ActualLRPHandler) GetByProcessGuidAndIndex(w http.ResponseWriter, req *http.Request) {
processGuid := req.FormValue(":process_guid")
indexString := req.FormValue(":index")
logger := h.logger.Session("get-by-process-guid-and-index", lager.Data{
"ProcessGuid": processGuid,
"Index": indexString,
})
if processGuid == "" {
err := errors.New("process_guid missing from request")
logger.Error("missing-process-guid", err)
writeBadRequestResponse(w, receptor.InvalidRequest, err)
return
}
if indexString == "" {
err := errors.New("index missing from request")
logger.Error("missing-index", err)
writeBadRequestResponse(w, receptor.InvalidRequest, err)
return
}
var err error
index, indexErr := strconv.Atoi(indexString)
if indexErr != nil {
err = errors.New("index not a number")
logger.Error("invalid-index", err)
writeBadRequestResponse(w, receptor.InvalidRequest, err)
return
}
actualLRPGroup, err := h.legacyBBS.ActualLRPGroupByProcessGuidAndIndex(logger, processGuid, index)
if err == bbserrors.ErrStoreResourceNotFound {
writeJSONResponse(w, http.StatusNotFound, nil)
return
}
if err != nil {
logger.Error("failed-to-fetch-actual-lrps-by-process-guid", err)
writeUnknownErrorResponse(w, err)
return
}
actualLRP, evacuating, err := actualLRPGroup.Resolve()
writeJSONResponse(w, http.StatusOK, serialization.ActualLRPToResponse(*actualLRP, evacuating))
}
Expect(response[0]).To(Equal(serialization.ActualLRPProtoToResponse(evacuatingLRP2, true)))
})
})
Context("when a domain query param is not provided", func() {
It("returns a list of desired lrp responses", func() {
handler.GetAll(responseRecorder, newTestRequest(""))
response := []receptor.ActualLRPResponse{}
err := json.Unmarshal(responseRecorder.Body.Bytes(), &response)
Expect(err).NotTo(HaveOccurred())
Expect(response).To(HaveLen(2))
Expect(response[0].ProcessGuid).To(Equal("process-guid-0"))
Expect(response[1].ProcessGuid).To(Equal("process-guid-1"))
expectedResponses := []receptor.ActualLRPResponse{
serialization.ActualLRPToResponse(oldActualLRP1, false),
serialization.ActualLRPToResponse(oldEvacuatingLRP2, true),
}
Expect(response).To(ConsistOf(expectedResponses))
})
})
})
Context("when the BBS returns no lrps", func() {
BeforeEach(func() {
fakeBBS.ActualLRPGroupsReturns([]*models.ActualLRPGroup{}, nil)
})
It("call the BBS to retrieve the actual LRPs", func() {
handler.GetAll(responseRecorder, newTestRequest(""))
})
It("responds without an error", func() {
Expect(getErr).NotTo(HaveOccurred())
})
It("fetches all of the actual lrps", func() {
Expect(actualLRPResponses).To(HaveLen(2))
})
It("has the correct data from the bbs", func() {
expectedResponses := []receptor.ActualLRPResponse{}
instanceLRPGroup, err := legacyBBS.ActualLRPGroupByProcessGuidAndIndex(logger, "process-guid-1", 1)
Expect(err).NotTo(HaveOccurred())
expectedResponses = append(expectedResponses, serialization.ActualLRPToResponse(*instanceLRPGroup.Instance, false))
evacuatingLRP, err := legacyBBS.EvacuatingActualLRPByProcessGuidAndIndex(logger, oldEvacuatingLRPKey.ProcessGuid, oldEvacuatingLRPKey.Index)
Expect(err).NotTo(HaveOccurred())
expectedResponses = append(expectedResponses, serialization.ActualLRPToResponse(evacuatingLRP, true))
Expect(actualLRPResponses).To(ConsistOf(expectedResponses))
})
})
Describe("ActualLRPsByProcessGuid", func() {
var actualLRPResponses []receptor.ActualLRPResponse
var getErr error
JustBeforeEach(func() {
actualLRPResponses, getErr = client.ActualLRPsByProcessGuid("process-guid-0")
desiredLRPRemovedEvent, ok := event.(receptor.DesiredLRPRemovedEvent)
Expect(ok).To(BeTrue())
Expect(desiredLRPRemovedEvent).To(Equal(expectedEvent))
})
})
})
Describe("Actual LRP Events", func() {
var actualLRPResponse receptor.ActualLRPResponse
BeforeEach(func() {
actualLRPResponse = serialization.ActualLRPToResponse(
models.ActualLRP{
ActualLRPKey: models.NewActualLRPKey("some-guid", 0, "some-domain"),
State: models.ActualLRPStateUnclaimed,
Since: 1,
},
false,
)
})
Context("when receiving a ActualLRPCreatedEvent", func() {
var expectedEvent receptor.ActualLRPCreatedEvent
BeforeEach(func() {
expectedEvent = receptor.NewActualLRPCreatedEvent(actualLRPResponse)
payload, err := json.Marshal(expectedEvent)
Expect(err).NotTo(HaveOccurred())
fakeRawEventSource.NextReturns(
sse.Event{
ActualLRPInstanceKey: models.NewActualLRPInstanceKey(expectedInstanceGuid, "cell-id"),
}
})
Context("when a non-evacuating create arrives", func() {
BeforeEach(func() {
actualCreateCB(actualLRP, false)
})
It("emits an ActualLRPCreatedEvent to the hub", func() {
Expect(hub.EmitCallCount()).To(Equal(1))
event := hub.EmitArgsForCall(0)
Expect(event).To(BeAssignableToTypeOf(receptor.ActualLRPCreatedEvent{}))
actualLRPCreatedEvent := event.(receptor.ActualLRPCreatedEvent)
Expect(actualLRPCreatedEvent.ActualLRPResponse).To(Equal(serialization.ActualLRPToResponse(actualLRP, false)))
})
})
Context("when a non-evacuating change arrives", func() {
BeforeEach(func() {
actualChangeCB(models.ActualLRPChange{Before: actualLRP, After: actualLRP}, false)
})
It("emits an ActualLRPChangedEvent to the hub", func() {
Expect(hub.EmitCallCount()).To(Equal(1))
event := hub.EmitArgsForCall(0)
Expect(event).To(BeAssignableToTypeOf(receptor.ActualLRPChangedEvent{}))
actualLRPChangedEvent := event.(receptor.ActualLRPChangedEvent)
Expect(actualLRPChangedEvent.Before).To(Equal(serialization.ActualLRPToResponse(actualLRP, false)))
{
ContainerPort: 2345,
HostPort: 9876,
},
},
State: receptor.ActualLRPStateRunning,
CrashCount: 42,
Since: 99999999999,
Evacuating: true,
ModificationTag: receptor.ModificationTag{
Epoch: "some-guid",
Index: 50,
},
}
actualResponse := serialization.ActualLRPToResponse(actualLRP, true)
Expect(actualResponse).To(Equal(expectedResponse))
})
It("maps model states to receptor states", func() {
expectedStateMap := map[models.ActualLRPState]receptor.ActualLRPState{
models.ActualLRPStateUnclaimed: receptor.ActualLRPStateUnclaimed,
models.ActualLRPStateClaimed: receptor.ActualLRPStateClaimed,
models.ActualLRPStateRunning: receptor.ActualLRPStateRunning,
models.ActualLRPStateCrashed: receptor.ActualLRPStateCrashed,
}
for modelState, jsonState := range expectedStateMap {
actualLRP.State = modelState
Expect(serialization.ActualLRPToResponse(actualLRP, false).State).To(Equal(jsonState))
}