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Golang ActualLRP.AllowsTransitionTo方法代碼示例

本文整理匯總了Golang中code/cloudfoundry/org/bbs/models.ActualLRP.AllowsTransitionTo方法的典型用法代碼示例。如果您正苦於以下問題：Golang ActualLRP.AllowsTransitionTo方法的具體用法？Golang ActualLRP.AllowsTransitionTo怎麽用？Golang ActualLRP.AllowsTransitionTo使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類code/cloudfoundry/org/bbs/models.ActualLRP的用法示例。


在下文中一共展示了ActualLRP.AllowsTransitionTo方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: ClaimActualLRP

func (db *SQLDB) ClaimActualLRP(logger lager.Logger, processGuid string, index int32, instanceKey *models.ActualLRPInstanceKey) (*models.ActualLRPGroup, *models.ActualLRPGroup, error) {
	logger = logger.WithData(lager.Data{"process_guid": processGuid, "index": index, "instance_key": instanceKey})
	logger.Info("starting")
	defer logger.Info("complete")

	var beforeActualLRP models.ActualLRP
	var actualLRP *models.ActualLRP
	err := db.transact(logger, func(logger lager.Logger, tx *sql.Tx) error {
		var err error
		actualLRP, err = db.fetchActualLRPForUpdate(logger, processGuid, index, false, tx)
		if err != nil {
			logger.Error("failed-fetching-actual-lrp-for-share", err)
			return err
		}
		beforeActualLRP = *actualLRP

		if !actualLRP.AllowsTransitionTo(&actualLRP.ActualLRPKey, instanceKey, models.ActualLRPStateClaimed) {
			logger.Error("cannot-transition-to-claimed", nil, lager.Data{"from_state": actualLRP.State, "same_instance_key": actualLRP.ActualLRPInstanceKey.Equal(instanceKey)})
			return models.ErrActualLRPCannotBeClaimed
		}

		if actualLRP.State == models.ActualLRPStateClaimed && actualLRP.ActualLRPInstanceKey.Equal(instanceKey) {
			return nil
		}

		actualLRP.ModificationTag.Increment()
		actualLRP.State = models.ActualLRPStateClaimed
		actualLRP.ActualLRPInstanceKey = *instanceKey
		actualLRP.PlacementError = ""
		actualLRP.ActualLRPNetInfo = models.ActualLRPNetInfo{}
		actualLRP.Since = db.clock.Now().UnixNano()

		_, err = db.update(logger, tx, actualLRPsTable,
			SQLAttributes{
				"state":                  actualLRP.State,
				"cell_id":                actualLRP.CellId,
				"instance_guid":          actualLRP.InstanceGuid,
				"modification_tag_index": actualLRP.ModificationTag.Index,
				"placement_error":        actualLRP.PlacementError,
				"since":                  actualLRP.Since,
				"net_info":               []byte{},
			},
			"process_guid = ? AND instance_index = ? AND evacuating = ?",
			processGuid, index, false,
		)
		if err != nil {
			logger.Error("failed-claiming-actual-lrp", err)
			return db.convertSQLError(err)
		}

		return nil
	})

	return &models.ActualLRPGroup{Instance: &beforeActualLRP}, &models.ActualLRPGroup{Instance: actualLRP}, err
}
開發者ID:cloudfoundry，項目名稱:bbs，代碼行數:55，代碼來源:actual_lrp_db.go

示例2: CrashActualLRP

func (db *SQLDB) CrashActualLRP(logger lager.Logger, key *models.ActualLRPKey, instanceKey *models.ActualLRPInstanceKey, crashReason string) (*models.ActualLRPGroup, *models.ActualLRPGroup, bool, error) {
	logger = logger.WithData(lager.Data{"key": key, "instance_key": instanceKey, "crash_reason": crashReason})
	logger.Info("starting")
	defer logger.Info("complete")

	var immediateRestart = false
	var beforeActualLRP models.ActualLRP
	var actualLRP *models.ActualLRP

	err := db.transact(logger, func(logger lager.Logger, tx *sql.Tx) error {
		var err error
		actualLRP, err = db.fetchActualLRPForUpdate(logger, key.ProcessGuid, key.Index, false, tx)
		if err != nil {
			logger.Error("failed-to-get-actual-lrp", err)
			return err
		}
		beforeActualLRP = *actualLRP

		latestChangeTime := time.Duration(db.clock.Now().UnixNano() - actualLRP.Since)

		var newCrashCount int32
		if latestChangeTime > models.CrashResetTimeout && actualLRP.State == models.ActualLRPStateRunning {
			newCrashCount = 1
		} else {
			newCrashCount = actualLRP.CrashCount + 1
		}

		if !actualLRP.AllowsTransitionTo(&actualLRP.ActualLRPKey, instanceKey, models.ActualLRPStateCrashed) {
			logger.Error("failed-to-transition-to-crashed", nil, lager.Data{"from_state": actualLRP.State, "same_instance_key": actualLRP.ActualLRPInstanceKey.Equal(instanceKey)})
			return models.ErrActualLRPCannotBeCrashed
		}

		actualLRP.ModificationTag.Increment()
		actualLRP.State = models.ActualLRPStateCrashed

		actualLRP.ActualLRPInstanceKey.InstanceGuid = ""
		actualLRP.ActualLRPInstanceKey.CellId = ""
		actualLRP.ActualLRPNetInfo = models.ActualLRPNetInfo{}
		actualLRP.CrashCount = newCrashCount
		actualLRP.CrashReason = crashReason
		evacuating := false

		if actualLRP.ShouldRestartImmediately(models.NewDefaultRestartCalculator()) {
			actualLRP.State = models.ActualLRPStateUnclaimed
			immediateRestart = true
		}

		now := db.clock.Now().UnixNano()
		actualLRP.Since = now

		_, err = db.update(logger, tx, actualLRPsTable,
			SQLAttributes{
				"state":                  actualLRP.State,
				"cell_id":                actualLRP.CellId,
				"instance_guid":          actualLRP.InstanceGuid,
				"modification_tag_index": actualLRP.ModificationTag.Index,
				"crash_count":            actualLRP.CrashCount,
				"crash_reason":           truncateString(actualLRP.CrashReason, 1024),
				"since":                  actualLRP.Since,
				"net_info":               []byte{},
			},
			"process_guid = ? AND instance_index = ? AND evacuating = ?",
			key.ProcessGuid, key.Index, evacuating,
		)
		if err != nil {
			logger.Error("failed-to-crash-actual-lrp", err)
			return db.convertSQLError(err)
		}

		return nil
	})

	return &models.ActualLRPGroup{Instance: &beforeActualLRP}, &models.ActualLRPGroup{Instance: actualLRP}, immediateRestart, err
}
開發者ID:cloudfoundry，項目名稱:bbs，代碼行數:74，代碼來源:actual_lrp_db.go

示例3: StartActualLRP

func (db *SQLDB) StartActualLRP(logger lager.Logger, key *models.ActualLRPKey, instanceKey *models.ActualLRPInstanceKey, netInfo *models.ActualLRPNetInfo) (*models.ActualLRPGroup, *models.ActualLRPGroup, error) {
	logger = logger.WithData(lager.Data{"actual_lrp_key": key, "actual_lrp_instance_key": instanceKey, "net_info": netInfo})

	var beforeActualLRP models.ActualLRP
	var actualLRP *models.ActualLRP

	err := db.transact(logger, func(logger lager.Logger, tx *sql.Tx) error {
		var err error
		actualLRP, err = db.fetchActualLRPForUpdate(logger, key.ProcessGuid, key.Index, false, tx)
		if err == models.ErrResourceNotFound {
			actualLRP, err = db.createRunningActualLRP(logger, key, instanceKey, netInfo, tx)
			return err
		}

		if err != nil {
			logger.Error("failed-to-get-actual-lrp", err)
			return err
		}

		beforeActualLRP = *actualLRP

		if actualLRP.ActualLRPKey.Equal(key) &&
			actualLRP.ActualLRPInstanceKey.Equal(instanceKey) &&
			actualLRP.ActualLRPNetInfo.Equal(netInfo) &&
			actualLRP.State == models.ActualLRPStateRunning {
			logger.Debug("nothing-to-change")
			return nil
		}

		if !actualLRP.AllowsTransitionTo(key, instanceKey, models.ActualLRPStateRunning) {
			logger.Error("failed-to-transition-actual-lrp-to-started", nil)
			return models.ErrActualLRPCannotBeStarted
		}

		logger.Info("starting")
		defer logger.Info("completed")

		now := db.clock.Now().UnixNano()
		evacuating := false

		actualLRP.ActualLRPInstanceKey = *instanceKey
		actualLRP.ActualLRPNetInfo = *netInfo
		actualLRP.State = models.ActualLRPStateRunning
		actualLRP.Since = now
		actualLRP.ModificationTag.Increment()
		actualLRP.PlacementError = ""

		netInfoData, err := db.serializeModel(logger, &actualLRP.ActualLRPNetInfo)
		if err != nil {
			logger.Error("failed-to-serialize-net-info", err)
			return err
		}

		_, err = db.update(logger, tx, actualLRPsTable,
			SQLAttributes{
				"state":                  actualLRP.State,
				"cell_id":                actualLRP.CellId,
				"instance_guid":          actualLRP.InstanceGuid,
				"modification_tag_index": actualLRP.ModificationTag.Index,
				"placement_error":        actualLRP.PlacementError,
				"since":                  actualLRP.Since,
				"net_info":               netInfoData,
			},
			"process_guid = ? AND instance_index = ? AND evacuating = ?",
			key.ProcessGuid, key.Index, evacuating,
		)
		if err != nil {
			logger.Error("failed-starting-actual-lrp", err)
			return db.convertSQLError(err)
		}

		return nil
	})

	return &models.ActualLRPGroup{Instance: &beforeActualLRP}, &models.ActualLRPGroup{Instance: actualLRP}, err
}
開發者ID:cloudfoundry，項目名稱:bbs，代碼行數:76，代碼來源:actual_lrp_db.go

示例4: 

			BeforeEach(func() {
				before = &models.ActualLRP{
					ActualLRPKey: models.NewActualLRPKey("fake-process-guid", 1, "fake-domain"),
				}
				afterKey = models.ActualLRPKey{}
				afterKey = before.ActualLRPKey
			})

			Context("when the ProcessGuid fields differ", func() {
				BeforeEach(func() {
					before.ProcessGuid = "some-process-guid"
					afterKey.ProcessGuid = "another-process-guid"
				})

				It("is not allowed", func() {
					Expect(before.AllowsTransitionTo(&afterKey, &before.ActualLRPInstanceKey, before.GetState())).To(BeFalse())
				})
			})

			Context("when the Index fields differ", func() {
				BeforeEach(func() {
					before.Index = 1138
					afterKey.Index = 3417
				})

				It("is not allowed", func() {
					Expect(before.AllowsTransitionTo(&afterKey, &before.ActualLRPInstanceKey, before.GetState())).To(BeFalse())
				})
			})

			Context("when the Domain fields differ", func() {
開發者ID:cfibmers，項目名稱:bbs，代碼行數:31，代碼來源:actual_lrp_test.go


注：本文中的code/cloudfoundry/org/bbs/models.ActualLRP.AllowsTransitionTo方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。