dispatcher

package
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Published: Nov 18, 2019 License: Apache-2.0 Imports: 14 Imported by: 0

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type SubscriptionsSupervisor

type SubscriptionsSupervisor struct {
	// contains filtered or unexported fields
}

SubscriptionsSupervisor manages the state of NATS Streaming subscriptions

func NewDispatcher

func NewDispatcher(natssURL, clusterID, clientID string, logger *zap.Logger) (*SubscriptionsSupervisor, error)

NewDispatcher returns a new SubscriptionsSupervisor.

func (*SubscriptionsSupervisor) Connect

func (s *SubscriptionsSupervisor) Connect(stopCh <-chan struct{})

Connect is called for initial connection as well as after every disconnect

func (*SubscriptionsSupervisor) Start

func (s *SubscriptionsSupervisor) Start(stopCh <-chan struct{}) error

func (*SubscriptionsSupervisor) UpdateHostToChannelMap

func (s *SubscriptionsSupervisor) UpdateHostToChannelMap(ctx context.Context, chanList []eventingv1alpha1.Channel) error

UpdateHostToChannelMap will be called from the controller that watches natss channels. It will update internal hostToChannelMap which is used to resolve the hostHeader of the incoming request to the correct ChannelReference in the receiver function.

func (*SubscriptionsSupervisor) UpdateSubscriptions

func (s *SubscriptionsSupervisor) UpdateSubscriptions(channel *eventingv1alpha1.Channel, isFinalizer bool) (map[eventingduck.SubscriberSpec]error, error)

UpdateSubscriptions creates/deletes the natss subscriptions based on channel.Spec.Subscribable.Subscribers Return type:map[eventingduck.SubscriberSpec]error --> Returns a map of subscriberSpec that failed with the value=error encountered. Ignore the value in case error != nil

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