processor

package
v0.28.0 Latest Latest
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 Go to latest Published: Sep 1, 2018 License: MIT Imports: 39 Imported by: 11

Documentation

Overview

Package processor contains implementations of types.Processor, which perform an arbitrary operation on a message and either returns >0 messages to be propagated towards a sink, or a response to be sent back to the message source.

Index

Constants

View Source 
const (
	TypeArchive      = "archive"
	TypeBatch        = "batch"
	TypeBoundsCheck  = "bounds_check"
	TypeCombine      = "combine"
	TypeCompress     = "compress"
	TypeConditional  = "conditional"
	TypeDecode       = "decode"
	TypeDecompress   = "decompress"
	TypeDedupe       = "dedupe"
	TypeEncode       = "encode"
	TypeFilter       = "filter"
	TypeFilterParts  = "filter_parts"
	TypeGrok         = "grok"
	TypeHash         = "hash"
	TypeHashSample   = "hash_sample"
	TypeHTTP         = "http"
	TypeInsertPart   = "insert_part"
	TypeJMESPath     = "jmespath"
	TypeJSON         = "json"
	TypeMergeJSON    = "merge_json"
	TypeMetadata     = "metadata"
	TypeMetric       = "metric"
	TypeNoop         = "noop"
	TypeProcessField = "process_field"
	TypeProcessMap   = "process_map"
	TypeSample       = "sample"
	TypeSelectParts  = "select_parts"
	TypeSplit        = "split"
	TypeText         = "text"
	TypeThrottle     = "throttle"
	TypeUnarchive    = "unarchive"
)

String constants representing each processor type.

Variables

View Source 
var Constructors = map[string]TypeSpec{}

Constructors is a map of all processor types with their specs.

Functions

func Descriptions 

func Descriptions() string

Descriptions returns a formatted string of collated descriptions of each type.

func DocumentPlugin added in v0.27.2 

func DocumentPlugin(
	typeString, description string,
	configSanitiser PluginConfigSanitiser,
)

DocumentPlugin adds a description and an optional configuration sanitiser function to the definition of a registered plugin. This improves the documentation generated by PluginDescriptions.

func PluginDescriptions added in v0.27.1 

func PluginDescriptions() string

PluginDescriptions generates and returns a markdown formatted document listing each registered plugin and an example configuration for it.

func RegisterPlugin added in v0.27.1 

func RegisterPlugin(
	typeString string,
	configConstructor PluginConfigConstructor,
	constructor PluginConstructor,
)

RegisterPlugin registers a plugin by a unique name so that it can be constucted similar to regular processors. A constructor for both the plugin itself as well as its configuration struct must be provided.

WARNING: This API is experimental and could (is likely) to change.

func SanitiseConfig added in v0.8.4 

func SanitiseConfig(conf Config) (interface{}, error)

SanitiseConfig returns a sanitised version of the Config, meaning sections that aren't relevant to behaviour are removed.

Types

type Archive added in v0.7.7 

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

Archive is a processor that can selectively archive parts of a message into a single part using a chosen archive type.

func (*Archive) ProcessMessage added in v0.7.7 

func (d *Archive) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type ArchiveConfig added in v0.7.7 

type ArchiveConfig struct {
	Format string `json:"format" yaml:"format"`
	Path   string `json:"path" yaml:"path"`
}

ArchiveConfig contains configuration fields for the Archive processor.

func NewArchiveConfig added in v0.7.7 

func NewArchiveConfig() ArchiveConfig

NewArchiveConfig returns a ArchiveConfig with default values.

type Batch added in v0.13.0 

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

Batch is a processor that combines messages into a batch until a size limit or other condition is reached, at which point the batch is sent out. When a message is combined without yet producing a batch a NoAck response is returned, which is interpretted as source types as an instruction to send another message through but hold off on acknowledging this one.

Eventually, when the batch reaches its target size, the batch is sent through the pipeline as a single message and an acknowledgement for that message determines whether the whole batch of messages are acknowledged.

func (*Batch) ProcessMessage added in v0.13.0 

func (c *Batch) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type BatchConfig added in v0.13.0 

type BatchConfig struct {
	ByteSize  int              `json:"byte_size" yaml:"byte_size"`
	Condition condition.Config `json:"condition" yaml:"condition"`
	PeriodMS  int              `json:"period_ms" yaml:"period_ms"`
}

BatchConfig contains configuration fields for the Batch processor.

func NewBatchConfig added in v0.13.0 

func NewBatchConfig() BatchConfig

NewBatchConfig returns a BatchConfig with default values.

type BoundsCheck 

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

BoundsCheck is a processor that checks each message against a set of bounds and rejects messages if they aren't within them.

func (*BoundsCheck) ProcessMessage 

func (m *BoundsCheck) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type BoundsCheckConfig 

type BoundsCheckConfig struct {
	MaxParts    int `json:"max_parts" yaml:"max_parts"`
	MinParts    int `json:"min_parts" yaml:"min_parts"`
	MaxPartSize int `json:"max_part_size" yaml:"max_part_size"`
	MinPartSize int `json:"min_part_size" yaml:"min_part_size"`
}

BoundsCheckConfig contains configuration fields for the BoundsCheck processor.

func NewBoundsCheckConfig 

func NewBoundsCheckConfig() BoundsCheckConfig

NewBoundsCheckConfig returns a BoundsCheckConfig with default values.

type Combine added in v0.3.1 

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

Combine is a processor that combines messages into a batch until a target number of message parts is reached, at which point the batch is sent out. When a message is combined without yet producing a batch a NoAck response is returned, which is interpretted as source types as an instruction to send another message through but hold off on acknowledging this one.

Eventually, when the batch reaches its target size, the batch is sent through the pipeline as a single message and an acknowledgement for that message determines whether the whole batch of messages are acknowledged.

func (*Combine) ProcessMessage added in v0.3.1 

func (c *Combine) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type CombineConfig added in v0.3.1 

type CombineConfig struct {
	Parts int `json:"parts" yaml:"parts"`
}

CombineConfig contains configuration fields for the Combine processor.

func NewCombineConfig added in v0.3.1 

func NewCombineConfig() CombineConfig

NewCombineConfig returns a CombineConfig with default values.

type Compress added in v0.7.7 

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

Compress is a processor that can selectively compress parts of a message as a chosen compression algorithm.

func (*Compress) ProcessMessage added in v0.7.7 

func (c *Compress) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type CompressConfig added in v0.7.7 

type CompressConfig struct {
	Algorithm string `json:"algorithm" yaml:"algorithm"`
	Level     int    `json:"level" yaml:"level"`
	Parts     []int  `json:"parts" yaml:"parts"`
}

CompressConfig contains configuration fields for the Compress processor.

func NewCompressConfig added in v0.7.7 

func NewCompressConfig() CompressConfig

NewCompressConfig returns a CompressConfig with default values.

type Conditional added in v0.13.0 

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

Conditional is a processor that only applies child processors under a certain condition.

func (*Conditional) ProcessMessage added in v0.13.0 

func (c *Conditional) ProcessMessage(msg types.Message) (msgs []types.Message, res types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type ConditionalConfig added in v0.13.0 

type ConditionalConfig struct {
	Condition      condition.Config `json:"condition" yaml:"condition"`
	Processors     []Config         `json:"processors" yaml:"processors"`
	ElseProcessors []Config         `json:"else_processors" yaml:"else_processors"`
}

ConditionalConfig is a config struct containing fields for the Conditional processor.

func NewConditionalConfig added in v0.13.0 

func NewConditionalConfig() ConditionalConfig

NewConditionalConfig returns a default ConditionalConfig.

type Config 

type Config struct {
	Type         string             `json:"type" yaml:"type"`
	Archive      ArchiveConfig      `json:"archive" yaml:"archive"`
	Batch        BatchConfig        `json:"batch" yaml:"batch"`
	BoundsCheck  BoundsCheckConfig  `json:"bounds_check" yaml:"bounds_check"`
	Combine      CombineConfig      `json:"combine" yaml:"combine"`
	Compress     CompressConfig     `json:"compress" yaml:"compress"`
	Conditional  ConditionalConfig  `json:"conditional" yaml:"conditional"`
	Decode       DecodeConfig       `json:"decode" yaml:"decode"`
	Decompress   DecompressConfig   `json:"decompress" yaml:"decompress"`
	Dedupe       DedupeConfig       `json:"dedupe" yaml:"dedupe"`
	Encode       EncodeConfig       `json:"encode" yaml:"encode"`
	Filter       FilterConfig       `json:"filter" yaml:"filter"`
	FilterParts  FilterPartsConfig  `json:"filter_parts" yaml:"filter_parts"`
	Grok         GrokConfig         `json:"grok" yaml:"grok"`
	Hash         HashConfig         `json:"hash" yaml:"hash"`
	HashSample   HashSampleConfig   `json:"hash_sample" yaml:"hash_sample"`
	HTTP         HTTPConfig         `json:"http" yaml:"http"`
	InsertPart   InsertPartConfig   `json:"insert_part" yaml:"insert_part"`
	JMESPath     JMESPathConfig     `json:"jmespath" yaml:"jmespath"`
	JSON         JSONConfig         `json:"json" yaml:"json"`
	MergeJSON    MergeJSONConfig    `json:"merge_json" yaml:"merge_json"`
	Metadata     MetadataConfig     `json:"metadata" yaml:"metadata"`
	Metric       MetricConfig       `json:"metric" yaml:"metric"`
	Plugin       interface{}        `json:"plugin,omitempty" yaml:"plugin,omitempty"`
	ProcessField ProcessFieldConfig `json:"process_field" yaml:"process_field"`
	ProcessMap   ProcessMapConfig   `json:"process_map" yaml:"process_map"`
	Sample       SampleConfig       `json:"sample" yaml:"sample"`
	SelectParts  SelectPartsConfig  `json:"select_parts" yaml:"select_parts"`
	Split        SplitConfig        `json:"split" yaml:"split"`
	Text         TextConfig         `json:"text" yaml:"text"`
	Throttle     ThrottleConfig     `json:"throttle" yaml:"throttle"`
	Unarchive    UnarchiveConfig    `json:"unarchive" yaml:"unarchive"`
}

Config is the all encompassing configuration struct for all processor types.

func NewConfig 

func NewConfig() Config

NewConfig returns a configuration struct fully populated with default values.

func (*Config) UnmarshalJSON 

func (m *Config) UnmarshalJSON(bytes []byte) error

UnmarshalJSON ensures that when parsing configs that are in a slice the default values are still applied.

func (*Config) UnmarshalYAML 

func (m *Config) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML ensures that when parsing configs that are in a slice the default values are still applied.

type Decode added in v0.15.5 

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

Decode is a processor that can selectively decode parts of a message following a chosen scheme.

func (*Decode) ProcessMessage added in v0.15.5 

func (c *Decode) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type DecodeConfig added in v0.15.5 

type DecodeConfig struct {
	Scheme string `json:"scheme" yaml:"scheme"`
	Parts  []int  `json:"parts" yaml:"parts"`
}

DecodeConfig contains configuration fields for the Decode processor.

func NewDecodeConfig added in v0.15.5 

func NewDecodeConfig() DecodeConfig

NewDecodeConfig returns a DecodeConfig with default values.

type Decompress added in v0.7.4 

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

Decompress is a processor that can decompress parts of a message following a chosen compression algorithm.

func (*Decompress) ProcessMessage added in v0.7.4 

func (d *Decompress) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type DecompressConfig added in v0.7.4 

type DecompressConfig struct {
	Algorithm string `json:"algorithm" yaml:"algorithm"`
	Parts     []int  `json:"parts" yaml:"parts"`
}

DecompressConfig contains configuration fields for the Decompress processor.

func NewDecompressConfig added in v0.7.4 

func NewDecompressConfig() DecompressConfig

NewDecompressConfig returns a DecompressConfig with default values.

type Dedupe added in v0.9.7 

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

Dedupe is a processor that deduplicates messages either by hashing the full contents of message parts or by hashing the value of an interpolated string.

func (*Dedupe) ProcessMessage added in v0.9.7 

func (d *Dedupe) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type DedupeConfig added in v0.9.7 

type DedupeConfig struct {
	Cache          string `json:"cache" yaml:"cache"`
	HashType       string `json:"hash" yaml:"hash"`
	Parts          []int  `json:"parts" yaml:"parts"` // message parts to hash
	Key            string `json:"key" yaml:"key"`
	DropOnCacheErr bool   `json:"drop_on_err" yaml:"drop_on_err"`
}

DedupeConfig contains configuration fields for the Dedupe processor.

func NewDedupeConfig added in v0.9.7 

func NewDedupeConfig() DedupeConfig

NewDedupeConfig returns a DedupeConfig with default values.

type Encode added in v0.15.5 

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

Encode is a processor that can selectively encode parts of a message following a chosen scheme.

func (*Encode) ProcessMessage added in v0.15.5 

func (c *Encode) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type EncodeConfig added in v0.15.5 

type EncodeConfig struct {
	Scheme string `json:"scheme" yaml:"scheme"`
	Parts  []int  `json:"parts" yaml:"parts"`
}

EncodeConfig contains configuration fields for the Encode processor.

func NewEncodeConfig added in v0.15.5 

func NewEncodeConfig() EncodeConfig

NewEncodeConfig returns a EncodeConfig with default values.

type Filter added in v0.13.0 

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

Filter is a processor that checks each message against a condition and rejects the message if a condition returns false.

func (*Filter) ProcessMessage added in v0.13.0 

func (c *Filter) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type FilterConfig added in v0.13.0 

type FilterConfig struct {
	condition.Config `json:",inline" yaml:",inline"`
}

FilterConfig contains configuration fields for the Filter processor.

func NewFilterConfig added in v0.13.0 

func NewFilterConfig() FilterConfig

NewFilterConfig returns a FilterConfig with default values.

type FilterParts added in v0.14.7 

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

FilterParts is a processor that checks each part from a message against a condition and removes the part if the condition returns false.

func (*FilterParts) ProcessMessage added in v0.14.7 

func (c *FilterParts) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type FilterPartsConfig added in v0.14.7 

type FilterPartsConfig struct {
	condition.Config `json:",inline" yaml:",inline"`
}

FilterPartsConfig contains configuration fields for the FilterParts processor.

func NewFilterPartsConfig added in v0.14.7 

func NewFilterPartsConfig() FilterPartsConfig

NewFilterPartsConfig returns a FilterPartsConfig with default values.

type Grok added in v0.13.5 

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

Grok is a processor that executes Grok queries on a message part and replaces the contents with the result.

func (*Grok) ProcessMessage added in v0.13.5 

func (g *Grok) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type GrokConfig added in v0.13.5 

type GrokConfig struct {
	Parts       []int    `json:"parts" yaml:"parts"`
	Patterns    []string `json:"patterns" yaml:"patterns"`
	RemoveEmpty bool     `json:"remove_empty_values" yaml:"remove_empty_values"`
	NamedOnly   bool     `json:"named_captures_only" yaml:"named_captures_only"`
	UseDefaults bool     `json:"use_default_patterns" yaml:"use_default_patterns"`
	To          string   `json:"output_format" yaml:"output_format"`
}

GrokConfig contains configuration fields for the Grok processor.

func NewGrokConfig added in v0.13.5 

func NewGrokConfig() GrokConfig

NewGrokConfig returns a GrokConfig with default values.

type HTTP added in v0.15.4 

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

HTTP is a processor that performs an HTTP request using the message as the request body, and returns the response.

func (*HTTP) ProcessMessage added in v0.15.4 

func (h *HTTP) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type HTTPConfig added in v0.15.4 

type HTTPConfig struct {
	Client      client.Config `json:"request" yaml:"request"`
	Parallel    bool          `json:"parallel" yaml:"parallel"`
	MaxParallel int           `json:"max_parallel" yaml:"max_parallel"`
}

HTTPConfig contains configuration fields for the HTTP processor.

func NewHTTPConfig added in v0.15.4 

func NewHTTPConfig() HTTPConfig

NewHTTPConfig returns a HTTPConfig with default values.

type Hash added in v0.25.0 

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

Hash is a processor that can selectively hash parts of a message following a chosen algorithm.

func (*Hash) ProcessMessage added in v0.25.0 

func (c *Hash) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type HashConfig added in v0.25.0 

type HashConfig struct {
	Parts     []int  `json:"parts" yaml:"parts"`
	Algorithm string `json:"algorithm" yaml:"algorithm"`
}

HashConfig contains configuration fields for the Hash processor.

func NewHashConfig added in v0.25.0 

func NewHashConfig() HashConfig

NewHashConfig returns a HashConfig with default values.

type HashSample added in v0.6.11 

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

HashSample is a processor that removes messages based on a sample factor by hashing its contents.

func (*HashSample) ProcessMessage added in v0.6.11 

func (s *HashSample) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type HashSampleConfig added in v0.6.11 

type HashSampleConfig struct {
	RetainMin float64 `json:"retain_min" yaml:"retain_min"`
	RetainMax float64 `json:"retain_max" yaml:"retain_max"`
	Parts     []int   `json:"parts" yaml:"parts"` // message parts to hash
}

HashSampleConfig contains configuration fields for the HashSample processor.

func NewHashSampleConfig added in v0.6.11 

func NewHashSampleConfig() HashSampleConfig

NewHashSampleConfig returns a HashSampleConfig with default values.

type InsertPart added in v0.6.19 

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

InsertPart is a processor that inserts a new message part at a specific index.

func (*InsertPart) ProcessMessage added in v0.6.19 

func (p *InsertPart) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type InsertPartConfig added in v0.6.19 

type InsertPartConfig struct {
	Index   int    `json:"index" yaml:"index"`
	Content string `json:"content" yaml:"content"`
}

InsertPartConfig contains configuration fields for the InsertPart processor.

func NewInsertPartConfig added in v0.6.19 

func NewInsertPartConfig() InsertPartConfig

NewInsertPartConfig returns a InsertPartConfig with default values.

type JMESPath added in v0.9.8 

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

JMESPath is a processor that executes JMESPath queries on a message part and replaces the contents with the result.

func (*JMESPath) ProcessMessage added in v0.9.8 

func (p *JMESPath) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type JMESPathConfig added in v0.9.8 

type JMESPathConfig struct {
	Parts []int  `json:"parts" yaml:"parts"`
	Query string `json:"query" yaml:"query"`
}

JMESPathConfig contains configuration fields for the JMESPath processor.

func NewJMESPathConfig added in v0.9.8 

func NewJMESPathConfig() JMESPathConfig

NewJMESPathConfig returns a JMESPathConfig with default values.

type JSON added in v0.14.0 

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

JSON is a processor that performs an operation on a JSON payload.

func (*JSON) ProcessMessage added in v0.14.0 

func (p *JSON) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type JSONConfig added in v0.14.0 

type JSONConfig struct {
	Parts    []int        `json:"parts" yaml:"parts"`
	Operator string       `json:"operator" yaml:"operator"`
	Path     string       `json:"path" yaml:"path"`
	Value    rawJSONValue `json:"value" yaml:"value"`
}

JSONConfig contains configuration fields for the JSON processor.

func NewJSONConfig added in v0.14.0 

func NewJSONConfig() JSONConfig

NewJSONConfig returns a JSONConfig with default values.

type MergeJSON added in v0.11.4 

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

MergeJSON is a processor that merges JSON parsed message parts into a single value.

func (*MergeJSON) ProcessMessage added in v0.11.4 

func (p *MergeJSON) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type MergeJSONConfig added in v0.11.4 

type MergeJSONConfig struct {
	Parts       []int `json:"parts" yaml:"parts"`
	RetainParts bool  `json:"retain_parts" yaml:"retain_parts"`
}

MergeJSONConfig contains configuration fields for the MergeJSON processor.

func NewMergeJSONConfig added in v0.11.4 

func NewMergeJSONConfig() MergeJSONConfig

NewMergeJSONConfig returns a MergeJSONConfig with default values.

type Metadata added in v0.20.1 

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

Metadata is a processor that performs an operation on the Metadata of a message.

func (*Metadata) ProcessMessage added in v0.20.1 

func (p *Metadata) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type MetadataConfig added in v0.20.1 

type MetadataConfig struct {
	Parts    []int  `json:"parts" yaml:"parts"`
	Operator string `json:"operator" yaml:"operator"`
	Key      string `json:"key" yaml:"key"`
	Value    string `json:"value" yaml:"value"`
}

MetadataConfig contains configuration fields for the Metadata processor.

func NewMetadataConfig added in v0.20.1 

func NewMetadataConfig() MetadataConfig

NewMetadataConfig returns a MetadataConfig with default values.

type Metric added in v0.26.2 

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

Metric is a processor that creates a metric from extracted values from a message part.

func (*Metric) ProcessMessage added in v0.26.2 

func (m *Metric) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message

type MetricConfig added in v0.26.2 

type MetricConfig struct {
	Type   string            `json:"type" yaml:"type"`
	Path   string            `json:"path" yaml:"path"`
	Labels map[string]string `json:"labels" yaml:"labels"`
	Value  string            `json:"value" yaml:"value"`
}

MetricConfig contains configuration fields for the Metric processor.

func NewMetricConfig added in v0.26.2 

func NewMetricConfig() MetricConfig

NewMetricConfig returns a MetricConfig with default values.

type Noop added in v0.6.5 

type Noop struct {
}

Noop is a no-op processor that does nothing.

func (*Noop) ProcessMessage added in v0.6.5 

func (c *Noop) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage does nothing and returns the message unchanged.

type PluginConfigConstructor added in v0.27.1 

type PluginConfigConstructor func() interface{}

PluginConfigConstructor is a func that returns a pointer to a new and fully populated configuration struct for a plugin type. It is valid to return a pointer to an empty struct (&struct{}{}) if no configuration fields are needed.

type PluginConfigSanitiser added in v0.27.2 

type PluginConfigSanitiser func(conf interface{}) interface{}

PluginConfigSanitiser is a function that takes a configuration object for a plugin and returns a sanitised (minimal) version of it for printing in examples and plugin documentation.

This function is useful for when a plugins configuration struct is very large and complex, but can sometimes be expressed in a more concise way without losing the original intent.

type PluginConstructor added in v0.27.1 

type PluginConstructor func(
	config interface{},
	manager types.Manager,
	logger log.Modular,
	metrics metrics.Type,
) (types.Processor, error)

PluginConstructor is a func that constructs a Benthos processor plugin. These are plugins that are specific to certain use cases, experimental, private or otherwise unfit for widespread general use. Any number of plugins can be specified when using Benthos as a framework.

The configuration object will be the result of the PluginConfigConstructor after overlaying the user configuration.

type ProcessField added in v0.18.0 

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

ProcessField is a processor that applies a list of child processors to a field extracted from the original payload.

func (*ProcessField) ProcessMessage added in v0.18.0 

func (p *ProcessField) ProcessMessage(msg types.Message) (msgs []types.Message, res types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type ProcessFieldConfig added in v0.18.0 

type ProcessFieldConfig struct {
	Parts      []int    `json:"parts" yaml:"parts"`
	Path       string   `json:"path" yaml:"path"`
	Processors []Config `json:"processors" yaml:"processors"`
}

ProcessFieldConfig is a config struct containing fields for the ProcessField processor.

func NewProcessFieldConfig added in v0.18.0 

func NewProcessFieldConfig() ProcessFieldConfig

NewProcessFieldConfig returns a default ProcessFieldConfig.

type ProcessMap added in v0.18.0 

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

ProcessMap is a processor that applies a list of child processors to a new payload mapped from the original, and after processing attempts to overlay the results back onto the original payloads according to more mappings.

func (*ProcessMap) ProcessMessage added in v0.18.0 

func (p *ProcessMap) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type ProcessMapConfig added in v0.18.0 

type ProcessMapConfig struct {
	Parts           []int              `json:"parts" yaml:"parts"`
	Conditions      []condition.Config `json:"conditions" yaml:"conditions"`
	Premap          map[string]string  `json:"premap" yaml:"premap"`
	PremapOptional  map[string]string  `json:"premap_optional" yaml:"premap_optional"`
	Postmap         map[string]string  `json:"postmap" yaml:"postmap"`
	PostmapOptional map[string]string  `json:"postmap_optional" yaml:"postmap_optional"`
	Processors      []Config           `json:"processors" yaml:"processors"`
}

ProcessMapConfig is a config struct containing fields for the ProcessMap processor.

func NewProcessMapConfig added in v0.18.0 

func NewProcessMapConfig() ProcessMapConfig

NewProcessMapConfig returns a default ProcessMapConfig.

type Sample added in v0.3.2 

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

Sample is a processor that drops messages based on a random sample.

func (*Sample) ProcessMessage added in v0.3.2 

func (s *Sample) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type SampleConfig added in v0.3.2 

type SampleConfig struct {
	Retain     float64 `json:"retain" yaml:"retain"`
	RandomSeed int64   `json:"seed" yaml:"seed"`
}

SampleConfig contains configuration fields for the Sample processor.

func NewSampleConfig added in v0.3.2 

func NewSampleConfig() SampleConfig

NewSampleConfig returns a SampleConfig with default values.

type SelectParts added in v0.4.1 

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

SelectParts is a processor that selects parts from a message to append to a new message.

func (*SelectParts) ProcessMessage added in v0.4.1 

func (m *SelectParts) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type SelectPartsConfig added in v0.4.1 

type SelectPartsConfig struct {
	Parts []int `json:"parts" yaml:"parts"`
}

SelectPartsConfig contains configuration fields for the SelectParts processor.

func NewSelectPartsConfig added in v0.4.1 

func NewSelectPartsConfig() SelectPartsConfig

NewSelectPartsConfig returns a SelectPartsConfig with default values.

type Split added in v0.7.6 

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

Split is a processor that splits messages into a message per part.

func (*Split) ProcessMessage added in v0.7.6 

func (s *Split) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type SplitConfig added in v0.23.1 

type SplitConfig struct {
	Size int `json:"size" yaml:"size"`
}

SplitConfig is a configuration struct containing fields for the Split processor, which breaks message batches down into batches of a smaller size.

func NewSplitConfig added in v0.23.1 

func NewSplitConfig() SplitConfig

NewSplitConfig returns a SplitConfig with default values.

type Text added in v0.19.0 

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

Text is a processor that performs a text based operation on a payload.

func (*Text) ProcessMessage added in v0.19.0 

func (t *Text) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type TextConfig added in v0.19.0 

type TextConfig struct {
	Parts    []int  `json:"parts" yaml:"parts"`
	Operator string `json:"operator" yaml:"operator"`
	Arg      string `json:"arg" yaml:"arg"`
	Value    string `json:"value" yaml:"value"`
}

TextConfig contains configuration fields for the Text processor.

func NewTextConfig added in v0.19.0 

func NewTextConfig() TextConfig

NewTextConfig returns a TextConfig with default values.

type Throttle added in v0.23.9 

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

Throttle is a processor that limits the stream of a pipeline to one message batch per period specified.

func (*Throttle) ProcessMessage added in v0.23.9 

func (m *Throttle) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type ThrottleConfig added in v0.23.9 

type ThrottleConfig struct {
	Period string `json:"period" yaml:"period"`
}

ThrottleConfig contains configuration fields for the Throttle processor.

func NewThrottleConfig added in v0.23.9 

func NewThrottleConfig() ThrottleConfig

NewThrottleConfig returns a ThrottleConfig with default values.

type Type 

type Type interface {
	// ProcessMessage attempts to process a message. Since processing can fail
	// this call returns both a slice of messages in case of success or a
	// response in case of failure. If the slice of messages is empty the
	// response should be returned to the source.
	ProcessMessage(msg types.Message) ([]types.Message, types.Response)
}

Type reads a message, performs a processing operation, and returns either a slice of messages resulting from the process to be propagated through the pipeline, or a response that should be sent back to the source instead.

func New 

func New(
	conf Config,
	mgr types.Manager,
	log log.Modular,
	stats metrics.Type,
) (Type, error)

New creates a processor type based on a processor configuration.

func NewArchive added in v0.7.7 

func NewArchive(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewArchive returns a Archive processor.

func NewBatch added in v0.13.0 

func NewBatch(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewBatch returns a Batch processor.

func NewBoundsCheck 

func NewBoundsCheck(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewBoundsCheck returns a BoundsCheck processor.

func NewCombine added in v0.3.1 

func NewCombine(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewCombine returns a Combine processor.

func NewCompress added in v0.7.7 

func NewCompress(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewCompress returns a Compress processor.

func NewConditional added in v0.13.0 

func NewConditional(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewConditional returns a Conditional processor.

func NewDecode added in v0.15.5 

func NewDecode(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewDecode returns a Decode processor.

func NewDecompress added in v0.7.4 

func NewDecompress(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewDecompress returns a Decompress processor.

func NewDedupe added in v0.9.7 

func NewDedupe(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewDedupe returns a Dedupe processor.

func NewEncode added in v0.15.5 

func NewEncode(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewEncode returns a Encode processor.

func NewFilter added in v0.13.0 

func NewFilter(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewFilter returns a Filter processor.

func NewFilterParts added in v0.14.7 

func NewFilterParts(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewFilterParts returns a FilterParts processor.

func NewGrok added in v0.13.5 

func NewGrok(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewGrok returns a Grok processor.

func NewHTTP added in v0.15.4 

func NewHTTP(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewHTTP returns a HTTP processor.

func NewHash added in v0.25.0 

func NewHash(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewHash returns a Hash processor.

func NewHashSample added in v0.6.11 

func NewHashSample(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewHashSample returns a HashSample processor.

func NewInsertPart added in v0.6.19 

func NewInsertPart(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewInsertPart returns a InsertPart processor.

func NewJMESPath added in v0.9.8 

func NewJMESPath(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewJMESPath returns a JMESPath processor.

func NewJSON added in v0.14.0 

func NewJSON(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewJSON returns a JSON processor.

func NewMergeJSON added in v0.11.4 

func NewMergeJSON(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewMergeJSON returns a MergeJSON processor.

func NewMetadata added in v0.20.1 

func NewMetadata(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewMetadata returns a Metadata processor.

func NewMetric added in v0.26.2 

func NewMetric(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewMetric returns a Metric processor.

func NewNoop added in v0.6.5 

func NewNoop(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewNoop returns a Noop processor.

func NewProcessField added in v0.18.0 

func NewProcessField(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewProcessField returns a ProcessField processor.

func NewProcessMap added in v0.18.0 

func NewProcessMap(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewProcessMap returns a ProcessField processor.

func NewSample added in v0.3.2 

func NewSample(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewSample returns a Sample processor.

func NewSelectParts added in v0.4.1 

func NewSelectParts(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewSelectParts returns a SelectParts processor.

func NewSplit added in v0.7.6 

func NewSplit(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewSplit returns a Split processor.

func NewText added in v0.19.0 

func NewText(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewText returns a Text processor.

func NewThrottle added in v0.23.9 

func NewThrottle(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewThrottle returns a Throttle processor.

func NewUnarchive added in v0.7.4 

func NewUnarchive(
	conf Config, mgr types.Manager, log log.Modular, stats metrics.Type,
) (Type, error)

NewUnarchive returns a Unarchive processor.

type TypeSpec added in v0.9.1 

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

TypeSpec Constructor and a usage description for each processor type.

type Unarchive added in v0.7.4 

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

Unarchive is a processor that can selectively unarchive parts of a message following a chosen archive type.

func (*Unarchive) ProcessMessage added in v0.7.4 

func (d *Unarchive) ProcessMessage(msg types.Message) ([]types.Message, types.Response)

ProcessMessage applies the processor to a message, either creating >0 resulting messages or a response to be sent back to the message source.

type UnarchiveConfig added in v0.7.4 

type UnarchiveConfig struct {
	Format string `json:"format" yaml:"format"`
	Parts  []int  `json:"parts" yaml:"parts"`
}

UnarchiveConfig contains configuration fields for the Unarchive processor.

func NewUnarchiveConfig added in v0.7.4 

func NewUnarchiveConfig() UnarchiveConfig

NewUnarchiveConfig returns a UnarchiveConfig with default values.

Source Files

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Directories

Path Synopsis
Package condition contains logical operators that, based on their configuration, return boolean values from messages under certain circumstances.
 Package condition contains logical operators that, based on their configuration, return boolean values from messages under certain circumstances.

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