pipeline

package
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Published: Nov 17, 2017 License: MIT Imports: 6 Imported by: 0

Documentation

Overview

Package pipeline contains structures that implement both the Producer and Consumer interfaces. They can be used as extra pipeline components for various utilities.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Processor

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

Processor is a pipeline that supports both Consumer and Producer interfaces. The processor will read from a source, perform some processing, and then either propagate a new message or drop it.

func NewProcessor

func NewProcessor(
	log log.Modular,
	stats metrics.Type,
	msgProcessors ...processor.Type,
) *Processor

NewProcessor returns a new message processing pipeline.

func (*Processor) CloseAsync

func (p *Processor) CloseAsync()

CloseAsync shuts down the pipeline and stops processing messages.

func (*Processor) MessageChan

func (p *Processor) MessageChan() <-chan types.Message

MessageChan returns the channel used for consuming messages from this pipeline.

func (*Processor) ResponseChan

func (p *Processor) ResponseChan() <-chan types.Response

ResponseChan returns the response channel from this pipeline.

func (*Processor) StartListening

func (p *Processor) StartListening(responses <-chan types.Response) error

StartListening sets the channel that this pipeline will read responses from.

func (*Processor) StartReceiving

func (p *Processor) StartReceiving(msgs <-chan types.Message) error

StartReceiving assigns a messages channel for the pipeline to read.

func (*Processor) WaitForClose

func (p *Processor) WaitForClose(timeout time.Duration) error

WaitForClose blocks until the StackBuffer output has closed down.

type Type

type Type interface {
	types.Producer
	types.Consumer
	types.Closable
}

Type is an interface that all pipeline types should implement.

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