common

Documentation

Overview

Package common contains various helpers for adapters.

Index

• func MustParseARN(arnStr string) arn.ARN
• func MustParseCognitoIdentityResource(resource string) string
• func MustParseCognitoUserPoolResource(resource string) string
• func MustParseDynamoDBResource(resource string) string
• func MustParseKinesisResource(resource string) string
• type Backoff
  • func NewBackoff(args ...time.Duration) *Backoff
  • func (b *Backoff) Duration() time.Duration
  • func (b *Backoff) Reset()
  • func (b *Backoff) Run(stopCh <-chan struct{}, fn RunFunc) error
• type RunFunc

Functions

func MustParseARN

func MustParseARN(arnStr string) arn.ARN

MustParseARN parses an ARN and panics in case of error.

func MustParseCognitoIdentityResource

func MustParseCognitoIdentityResource(resource string) string

MustParseCognitoIdentityResource parses the resource segment of a Cognito Identity Pool ARN and panics in case of error.

func MustParseCognitoUserPoolResource

func MustParseCognitoUserPoolResource(resource string) string

MustParseCognitoUserPoolResource parses the resource segment of a Cognito User Pool ARN and panics in case of error.

func MustParseDynamoDBResource

func MustParseDynamoDBResource(resource string) string

MustParseDynamoDBResource parses the resource segment of a DynamoDB ARN and panics in case of error.

func MustParseKinesisResource

func MustParseKinesisResource(resource string) string

MustParseKinesisResource parses the resource segment of a Kinesis ARN and panics in case of error.

Types

type Backoff

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

Backoff provides a simple exponential backoff mechanism.

func NewBackoff

func NewBackoff(args ...time.Duration) *Backoff

NewBackoff accepts optional values for minimum and maximum wait period and returns a new instance of Backoff.

func (*Backoff) Duration

func (b *Backoff) Duration() time.Duration

Duration returns the exponential backoff duration calculated for the current step.

func (*Backoff) Reset

func (b *Backoff) Reset()

Reset sets step counter to zero.

func (*Backoff) Run

func (b *Backoff) Run(stopCh <-chan struct{}, fn RunFunc) error

Run is a blocking function that executes RunFunc until stopCh receives a value or fn returns an error.

type RunFunc

type RunFunc func(context.Context) (bool, error)

RunFunc is a user function that polls data from a source and sends it as a CloudEvent to a sink. RunFunc must return (bool, error) values where bool is true if the poll backoff duration must be reset, and error is the result of the function's execution.