handler

package
v0.11.1 Latest Latest
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Published: Dec 17, 2019 License: Apache-2.0 Imports: 25 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func New added in v0.6.0

New constructs a new http.Handler that deals with revision activation.

Types

type ConcurrencyReporter added in v0.4.0

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

ConcurrencyReporter reports stats based on incoming requests and ticks.

func NewConcurrencyReporter

func NewConcurrencyReporter(ctx context.Context, podName string,
	reqCh chan ReqEvent, reportCh <-chan time.Time, statCh chan []autoscaler.StatMessage,
	sr activator.StatsReporter) *ConcurrencyReporter

NewConcurrencyReporter creates a ConcurrencyReporter which listens to incoming ReqEvents on reqCh and ticks on reportCh and reports stats on statCh.

func (*ConcurrencyReporter) Run added in v0.4.0

func (cr *ConcurrencyReporter) Run(stopCh <-chan struct{})

Run runs until stopCh is closed and processes events on all incoming channels

type HealthHandler added in v0.5.0

type HealthHandler struct {
	HealthCheck func() error
	NextHandler http.Handler
	Logger      *zap.SugaredLogger
}

HealthHandler handles responding to kubelet probes with a provided health check.

func (*HealthHandler) ServeHTTP added in v0.5.0

func (h *HealthHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type MetricHandler added in v0.9.0

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

MetricHandler sends metrics via reporter

func NewMetricHandler added in v0.9.0

func NewMetricHandler(ctx context.Context, r activator.StatsReporter, next http.Handler) *MetricHandler

NewMetricHandler creates a handler collects and reports request metrics

func (*MetricHandler) ServeHTTP added in v0.9.0

func (h *MetricHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type ProbeHandler added in v0.4.0

type ProbeHandler struct {
	NextHandler http.Handler
}

ProbeHandler handles responding to Knative internal network probes.

func (*ProbeHandler) ServeHTTP added in v0.4.0

func (h *ProbeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type ReqEvent

type ReqEvent struct {
	Key       types.NamespacedName
	EventType ReqEventType
}

ReqEvent represents an incoming/finished request with a given key

type ReqEventType

type ReqEventType int

ReqEventType specifies the type of event (In/Out)

const (
	// ReqIn represents an incoming request
	ReqIn ReqEventType = iota
	// ReqOut represents a finished request
	ReqOut
)

type RequestEventHandler

type RequestEventHandler struct {
	ReqChan chan ReqEvent
	// contains filtered or unexported fields
}

RequestEventHandler sends events to the given channel.

func NewRequestEventHandler

func NewRequestEventHandler(reqChan chan ReqEvent, next http.Handler) *RequestEventHandler

NewRequestEventHandler creates a handler that sends events about incoming/closed http connections to the given channel.

func (*RequestEventHandler) ServeHTTP

func (h *RequestEventHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)

type Throttler added in v0.10.0

type Throttler interface {
	Try(context.Context, types.NamespacedName, func(string) error) error
}

Throttler is the interface that Handler calls to Try to proxy the user request.

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