stream

package
v0.15.3 Latest Latest
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 Go to latest Published: Feb 22, 2024 License: MIT Imports: 51 Imported by: 0

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Index

Constants

View Source 
const (
	InputTypeFile     = "file"
	InputTypeInMemory = "inMemory"
	InputTypeKinesis  = "kinesis"
	InputTypeRedis    = "redis"
	InputTypeSns      = "sns"
	InputTypeSqs      = "sqs"
	InputTypeKafka    = "kafka"
)
View Source 
const (
	AttributeSqsMessageId     = "sqsMessageId"
	AttributeSqsReceiptHandle = "sqsReceiptHandle"
)
View Source 
const (
	AttributeEncoding    = "encoding"
	AttributeCompression = "compression"
)
View Source 
const (
	AttributeKafkaKey            = "KafkaKey"
	MetaDataKafkaOriginalMessage = "KafkaOriginal"
)
View Source 
const (
	OutputTypeFile     = "file"
	OutputTypeInMemory = "inMemory"
	OutputTypeKinesis  = "kinesis"
	OutputTypeMultiple = "multiple"
	OutputTypeNoOp     = "noop"
	OutputTypeRedis    = "redis"
	OutputTypeSns      = "sns"
	OutputTypeSqs      = "sqs"
	OutputTypeKafka    = "kafka"
)
View Source 
const (
	AttributeKinesisPartitionKey    = "gosoline.kinesis.partitionKey"
	AttributeKinesisExplicitHashKey = "gosoline.kinesis.explicitHashKey"
)
View Source 
const (
	AttributeAggregate      = "goso.aggregate"
	AttributeAggregateCount = "goso.aggregate.count"
)
View Source 
const (
	AttributeRetry   = "goso.retry"
	AttributeRetryId = "goso.retry.id"
)
View Source 
const (
	UnmarshallerMsg = "msg"
	UnmarshallerRaw = "raw"
	UnmarshallerSns = "sns"
)
View Source 
const (
	ConfigKeyStream = "stream"
)
View Source 
const MetadataKeyProducers = "stream.producers"
View Source 
const SqsOutputBatchSize = 10

Variables

This section is empty.

Functions

func AddDefaultEncodeHandler 

func AddDefaultEncodeHandler(handler EncodeHandler)

func AddMessageBodyEncoder 

func AddMessageBodyEncoder(encoding EncodingType, encoder MessageBodyEncoder)

func ByteChunkToInterfaces 

func ByteChunkToInterfaces(chunk Chunk) []interface{}

func ByteChunkToStrings 

func ByteChunkToStrings(chunk Chunk) []string

func CompressMessage 

func CompressMessage(compression CompressionType, body []byte) ([]byte, error)

func ConfigurableConsumerKey 

func ConfigurableConsumerKey(name string) string

func ConfigurableConsumerRetryKey 

func ConfigurableConsumerRetryKey(name string) string

func ConfigurableInputKey 

func ConfigurableInputKey(name string) string

func ConfigurableOutputKey 

func ConfigurableOutputKey(name string) string

func ConfigurableProducerKey 

func ConfigurableProducerKey(name string) string

func ConsumerFactory 

func ConsumerFactory(callbacks ConsumerCallbackMap) (map[string]kernel.ModuleFactory, error)

func DecodeMessage 

func DecodeMessage(encoding EncodingType, data []byte, out interface{}) error

func DecompressMessage 

func DecompressMessage(compression CompressionType, body []byte) ([]byte, error)

func EncodeMessage 

func EncodeMessage(encoding EncodingType, data interface{}) ([]byte, error)

func GosoToKafkaMessage 

func GosoToKafkaMessage(msg *Message) kafka.Message

func GosoToKafkaMessages 

func GosoToKafkaMessages(msgs ...*Message) []kafka.Message

func KafkaHeadersToGosoAttributes added in v0.12.0 

func KafkaHeadersToGosoAttributes(headers []kafka.Header) map[string]string

func MessagesPerRunnerMetricWriterFactory 

func MessagesPerRunnerMetricWriterFactory(_ context.Context, config cfg.Config, _ log.Logger) (map[string]kernel.ModuleFactory, error)

func NewBaseConsumer 

func NewBaseConsumer(ctx context.Context, config cfg.Config, logger log.Logger, name string, consumerCallback BaseConsumerCallback) (*baseConsumer, error)

func NewBaseConsumerWithInterfaces 

func NewBaseConsumerWithInterfaces(
	uuidGen uuid.Uuid,
	logger log.Logger,
	metricWriter metric.Writer,
	tracer tracing.Tracer,
	input Input,
	encoder MessageEncoder,
	retryInput Input,
	retryHandler RetryHandler,
	consumerCallback interface{},
	settings *ConsumerSettings,
	name string,
	appId cfg.AppId,
) *baseConsumer

func NewBatchConsumer 

func NewBatchConsumer(name string, callbackFactory BatchConsumerCallbackFactory) func(ctx context.Context, config cfg.Config, logger log.Logger) (kernel.Module, error)

func NewConsumer 

func NewConsumer(name string, callbackFactory ConsumerCallbackFactory) func(ctx context.Context, config cfg.Config, logger log.Logger) (kernel.Module, error)

func NewConsumerFactory 

func NewConsumerFactory(callbacks ConsumerCallbackMap) kernel.ModuleMultiFactory

func NewKafkaMessage 

func NewKafkaMessage(writable WritableMessage) kafka.Message

func NewKafkaMessageAttrs 

func NewKafkaMessageAttrs(key string) map[string]interface{}

func NewKafkaMessages 

func NewKafkaMessages(ms []WritableMessage) []kafka.Message

func NewKinesisMessageHandler 

func NewKinesisMessageHandler(channel chan *Message) kinesis.MessageHandler

func NewMessageEncoder 

func NewMessageEncoder(config *MessageEncoderSettings) *messageEncoder

func NewMessagesPerRunnerMetricWriter 

func NewMessagesPerRunnerMetricWriter(settings *MessagesPerRunnerMetricSettings) kernel.ModuleFactory

func NewOutputTracer 

func NewOutputTracer(config cfg.Config, logger log.Logger, base Output, name string) (*outputTracer, error)

func NewOutputTracerWithInterfaces 

func NewOutputTracerWithInterfaces(tracer tracing.Tracer, base Output, name string) *outputTracer

func NewProducer 

func NewProducer(ctx context.Context, config cfg.Config, logger log.Logger, name string, handlers ...EncodeHandler) (*producer, error)

func NewProducerDaemon 

func NewProducerDaemon(ctx context.Context, config cfg.Config, logger log.Logger, name string) (*producerDaemon, error)

func NewProducerDaemonWithInterfaces 

func NewProducerDaemonWithInterfaces(logger log.Logger, metric metric.Writer, aggregator ProducerDaemonAggregator, output Output, clock clock.Clock, name string, settings ProducerDaemonSettings) *producerDaemon

func NewProducerWithInterfaces 

func NewProducerWithInterfaces(encoder MessageEncoder, output Output) *producer

func NewRetryHandler 

func NewRetryHandler(ctx context.Context, config cfg.Config, logger log.Logger, consumerSettings *ConsumerRetrySettings, name string) (Input, RetryHandler, error)

func NewRetryHandlerNoop 

func NewRetryHandlerNoop(context.Context, cfg.Config, log.Logger, string) (Input, RetryHandler, error)

func NewRetryHandlerSqs 

func NewRetryHandlerSqs(ctx context.Context, config cfg.Config, logger log.Logger, name string) (Input, RetryHandler, error)

func NewSnsInput 

func NewSnsInput(ctx context.Context, config cfg.Config, logger log.Logger, settings *SnsInputSettings, targets []SnsInputTarget) (*snsInput, error)

func NewSnsInputWithInterfaces 

func NewSnsInputWithInterfaces(sqsInput *sqsInput) *snsInput

func NewSqsInput 

func NewSqsInput(ctx context.Context, config cfg.Config, logger log.Logger, settings *SqsInputSettings) (*sqsInput, error)

func NewSqsInputWithInterfaces 

func NewSqsInputWithInterfaces(logger log.Logger, queue sqs.Queue, unmarshaller UnmarshallerFunc, settings *SqsInputSettings) *sqsInput

func ProducerDaemonFactory 

func ProducerDaemonFactory(ctx context.Context, config cfg.Config, logger log.Logger) (map[string]kernel.ModuleFactory, error)

func ProvideProducerDaemon 

func ProvideProducerDaemon(ctx context.Context, config cfg.Config, logger log.Logger, name string) (*producerDaemon, error)

func ResetInMemoryInputs 

func ResetInMemoryInputs()

func ResetInMemoryOutputs 

func ResetInMemoryOutputs()

func ResetProducerDaemons 

func ResetProducerDaemons()

func SetInputFactory 

func SetInputFactory(typ string, factory InputFactory)

func SnsMarshaller 

func SnsMarshaller(msg *Message) (*string, error)

func WithDefaultMessageBodyEncoding 

func WithDefaultMessageBodyEncoding(encoding EncodingType)

Types

type AcknowledgeableInput 

type AcknowledgeableInput interface {
	Input
	// Ack acknowledges a single message. If possible, prefer calling AckBatch as it is more efficient.
	Ack(ctx context.Context, msg *Message, ack bool) error
	// AckBatch does the same as calling Ack for every single message would, but it might use fewer calls to an external
	// service.
	AckBatch(ctx context.Context, msgs []*Message, acks []bool) error
}

An AcknowledgeableInput is an Input with the additional ability to mark messages as successfully consumed. For example, an SQS queue would provide a message after its visibility timeout a second time if we didn't acknowledge it.

type AggregateFlush 

type AggregateFlush struct {
	Attributes   map[string]string
	Body         string
	MessageCount int
}

type BaseConsumerCallback 

type BaseConsumerCallback interface {
	GetModel(attributes map[string]string) interface{}
}

type BaseOutputConfiguration 

type BaseOutputConfiguration struct {
	Tracing BaseOutputConfigurationTracing `cfg:"tracing"`
}

func (*BaseOutputConfiguration) SetTracing 

func (b *BaseOutputConfiguration) SetTracing(enabled bool)

type BaseOutputConfigurationAware 

type BaseOutputConfigurationAware interface {
	SetTracing(enabled bool)
}

type BaseOutputConfigurationTracing 

type BaseOutputConfigurationTracing struct {
	Enabled bool `cfg:"enabled" default:"true"`
}

type BatchConsumer 

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

func NewBatchConsumerWithInterfaces 

func NewBatchConsumerWithInterfaces(base *baseConsumer, callback BatchConsumerCallback, ticker *time.Ticker, settings *BatchConsumerSettings) *BatchConsumer

func (*BatchConsumer) Run 

func (c *BatchConsumer) Run(kernelCtx context.Context) error

type BatchConsumerCallback 

type BatchConsumerCallback interface {
	BaseConsumerCallback
	Consume(ctx context.Context, models []interface{}, attributes []map[string]string) ([]bool, error)
}

type BatchConsumerCallbackFactory 

type BatchConsumerCallbackFactory func(ctx context.Context, config cfg.Config, logger log.Logger) (BatchConsumerCallback, error)

type BatchConsumerSettings 

type BatchConsumerSettings struct {
	IdleTimeout time.Duration `cfg:"idle_timeout" default:"10s"`
	BatchSize   int           `cfg:"batch_size" default:"1"`
}

type Chunk 

type Chunk [][]byte

type Chunks 

type Chunks []Chunk

func BuildChunks 

func BuildChunks(batch []WritableMessage, size int) (Chunks, error)

type CompressionType 

type CompressionType string
const (
	CompressionNone CompressionType = "none"
	CompressionGZip CompressionType = "application/gzip"
)

func GetCompressionAttribute 

func GetCompressionAttribute(attributes map[string]string) *CompressionType

GetCompressionAttribute returns the compression attribute if one is set, nil if none is set, and an error if the set value is of the wrong type.

func (CompressionType) String 

func (s CompressionType) String() string

type Consumer 

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

func NewConsumerWithInterfaces 

func NewConsumerWithInterfaces(base *baseConsumer, callback ConsumerCallback) *Consumer

func (*Consumer) Run 

func (c *Consumer) Run(kernelCtx context.Context) error

type ConsumerAcknowledge 

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

func NewConsumerAcknowledgeWithInterfaces 

func NewConsumerAcknowledgeWithInterfaces(logger log.Logger, input Input) ConsumerAcknowledge

func (*ConsumerAcknowledge) Acknowledge 

func (c *ConsumerAcknowledge) Acknowledge(ctx context.Context, cdata *consumerData, ack bool)

func (*ConsumerAcknowledge) AcknowledgeBatch 

func (c *ConsumerAcknowledge) AcknowledgeBatch(ctx context.Context, cdata []*consumerData, acks []bool)

type ConsumerCallback 

type ConsumerCallback interface {
	BaseConsumerCallback
	Consume(ctx context.Context, model interface{}, attributes map[string]string) (bool, error)
}

type ConsumerCallbackFactory 

type ConsumerCallbackFactory func(ctx context.Context, config cfg.Config, logger log.Logger) (ConsumerCallback, error)

type ConsumerCallbackMap 

type ConsumerCallbackMap map[string]ConsumerCallbackFactory

type ConsumerMetadata 

type ConsumerMetadata struct {
	Name         string `json:"name"`
	RetryEnabled bool   `json:"retry_enabled"`
	RetryType    string `json:"retry_type"`
	RunnerCount  int    `json:"runner_count"`
}

type ConsumerRetrySettings 

type ConsumerRetrySettings struct {
	Enabled bool   `cfg:"enabled"`
	Type    string `cfg:"type" default:"sqs"`
}

type ConsumerSettings 

type ConsumerSettings struct {
	Input       string                `cfg:"input" default:"consumer" validate:"required"`
	RunnerCount int                   `cfg:"runner_count" default:"1" validate:"min=1"`
	Encoding    EncodingType          `cfg:"encoding" default:"application/json"`
	IdleTimeout time.Duration         `cfg:"idle_timeout" default:"10s"`
	Retry       ConsumerRetrySettings `cfg:"retry"`
}

type EncodeHandler 

type EncodeHandler interface {
	Encode(ctx context.Context, data interface{}, attributes map[string]string) (context.Context, map[string]string, error)
	Decode(ctx context.Context, data interface{}, attributes map[string]string) (context.Context, map[string]string, error)
}

type EncodingType 

type EncodingType string
const (
	EncodingJson     EncodingType = "application/json"
	EncodingProtobuf EncodingType = "application/x-protobuf"
)

func GetEncodingAttribute 

func GetEncodingAttribute(attributes map[string]string) *EncodingType

GetEncodingAttribute returns the encoding attribute if one is set, nil if none is set, and an error if the set value is of the wrong type.

func (EncodingType) String 

func (s EncodingType) String() string

type FileOutputMode 

type FileOutputMode string
const (
	FileOutputModeAppend   FileOutputMode = "append"
	FileOutputModeSingle   FileOutputMode = "single"
	FileOutputModeTruncate FileOutputMode = "truncate"
)

type FileOutputSettings 

type FileOutputSettings struct {
	Filename string         `cfg:"filename"`
	Mode     FileOutputMode `cfg:"mode" default:"append"`
}

type FileSettings 

type FileSettings struct {
	Filename string `cfg:"filename"`
	Blocking bool   `cfg:"blocking"`
}

type InMemoryInput 

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

func NewInMemoryInput 

func NewInMemoryInput(settings *InMemorySettings) *InMemoryInput

func ProvideInMemoryInput 

func ProvideInMemoryInput(name string, settings *InMemorySettings) *InMemoryInput

func (*InMemoryInput) Data 

func (i *InMemoryInput) Data() <-chan *Message

func (*InMemoryInput) Publish 

func (i *InMemoryInput) Publish(messages ...*Message)

func (*InMemoryInput) Reset 

func (i *InMemoryInput) Reset()

func (*InMemoryInput) Run 

func (i *InMemoryInput) Run(ctx context.Context) error

func (*InMemoryInput) Stop 

func (i *InMemoryInput) Stop()

type InMemoryOutput 

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

func NewInMemoryOutput 

func NewInMemoryOutput() *InMemoryOutput

func ProvideInMemoryOutput 

func ProvideInMemoryOutput(name string) *InMemoryOutput

func (*InMemoryOutput) Clear 

func (o *InMemoryOutput) Clear()

func (*InMemoryOutput) ContainsBody 

func (o *InMemoryOutput) ContainsBody(body string) bool

func (*InMemoryOutput) Get 

func (o *InMemoryOutput) Get(i int) (*Message, bool)

func (*InMemoryOutput) Len 

func (o *InMemoryOutput) Len() int

func (*InMemoryOutput) Size 

func (o *InMemoryOutput) Size() int

func (*InMemoryOutput) Write 

func (o *InMemoryOutput) Write(_ context.Context, batch []WritableMessage) error

func (*InMemoryOutput) WriteOne 

func (o *InMemoryOutput) WriteOne(ctx context.Context, msg WritableMessage) error

type InMemoryOutputConfiguration 

type InMemoryOutputConfiguration struct {
	BaseOutputConfiguration
	Type string `cfg:"type" default:"inMemory"`
}

type InMemorySettings 

type InMemorySettings struct {
	Size int `cfg:"size" default:"1"`
}

type Input 

type Input interface {
	// Run provides a steady stream of messages, returned via Data. Run does not return until Stop is called and thus
	// should be called in its own go routine. The only exception to this is if we either fail to produce messages and
	// return an error or if the input is depleted (like an InMemoryInput).
	//
	// Run should only be called once, not all inputs can be resumed.
	Run(ctx context.Context) error
	// Stop causes Run to return as fast as possible. Calling Stop is preferable to canceling the context passed to Run
	// as it allows Run to shut down cleaner (and might take a bit longer, e.g., to finish processing the current batch
	// of messages).
	Stop()
	// Data returns a channel containing the messages produced by this input.
	Data() <-chan *Message
}

An Input provides you with a steady stream of messages until you Stop it.

func NewConfigurableInput 

func NewConfigurableInput(ctx context.Context, config cfg.Config, logger log.Logger, name string) (Input, error)

func NewFileInput 

func NewFileInput(_ cfg.Config, logger log.Logger, settings FileSettings) Input

func NewFileInputWithInterfaces 

func NewFileInputWithInterfaces(logger log.Logger, settings FileSettings) Input

func NewKinesisInput 

func NewKinesisInput(ctx context.Context, config cfg.Config, logger log.Logger, settings kinesis.Settings) (Input, error)

func NewNoopInput added in v0.14.0 

func NewNoopInput() Input

func NewRedisListInput 

func NewRedisListInput(config cfg.Config, logger log.Logger, settings *RedisListInputSettings) (Input, error)

func NewRedisListInputWithInterfaces 

func NewRedisListInputWithInterfaces(logger log.Logger, client redis.Client, mw metric.Writer, settings *RedisListInputSettings) Input

func ProvideConfigurableInput 

func ProvideConfigurableInput(ctx context.Context, config cfg.Config, logger log.Logger, name string) (Input, error)

type InputFactory 

type InputFactory func(ctx context.Context, config cfg.Config, logger log.Logger, name string) (Input, error)

type KafkaInput 

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

func NewKafkaInput 

func NewKafkaInput(ctx context.Context, config cfg.Config, logger log.Logger, key string) (*KafkaInput, error)

func NewKafkaInputWithInterfaces 

func NewKafkaInputWithInterfaces(consumer *kafkaConsumer.Consumer) (*KafkaInput, error)

func (*KafkaInput) Ack 

func (i *KafkaInput) Ack(ctx context.Context, msg *Message, _ bool) error

Ack acknowledges a message. If possible, prefer calling Ack with a batch as it is more efficient.

func (*KafkaInput) AckBatch 

func (i *KafkaInput) AckBatch(ctx context.Context, msgs []*Message, _ []bool) error

AckBatch does the same as calling Ack for every single message would, but it might use fewer calls to an external service.

func (*KafkaInput) Data 

func (i *KafkaInput) Data() <-chan *Message

Data returns a channel containing the messages produced by this input.

func (*KafkaInput) Run 

func (i *KafkaInput) Run(ctx context.Context) error

Run provides a steady stream of messages, returned via Data. Run does not return until Stop is called and thus should be called in its own go routine. The only exception to this is if we either fail to produce messages and return an error or if the input is depleted (like an InMemoryInput).

Run should only be called once, not all inputs can be resumed.

func (*KafkaInput) Stop 

func (i *KafkaInput) Stop()

Stop causes Run to return as fast as possible. Calling Stop is preferable to canceling the context passed to Run as it allows Run to shut down cleaner (and might take a bit longer, e.g., to finish processing the current batch of messages).

type KafkaOutput 

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

func NewKafkaOutput 

func NewKafkaOutput(ctx context.Context, config cfg.Config, logger log.Logger, key string) (*KafkaOutput, error)

func NewKafkaOutputWithInterfaces 

func NewKafkaOutputWithInterfaces(ctx context.Context, producer *kafkaProducer.Producer) (*KafkaOutput, error)

func (*KafkaOutput) Write 

func (o *KafkaOutput) Write(ctx context.Context, ms []WritableMessage) error

func (*KafkaOutput) WriteOne 

func (o *KafkaOutput) WriteOne(ctx context.Context, m WritableMessage) error

type KafkaSourceMessage 

type KafkaSourceMessage struct {
	kafka.Message
}

func (KafkaSourceMessage) MarshalJSON 

func (k KafkaSourceMessage) MarshalJSON() ([]byte, error)

type KinesisInputConfiguration 

type KinesisInputConfiguration struct {
	kinesis.Settings
	Type string `cfg:"type" default:"kinesis"`
}

type KinesisOutputConfiguration 

type KinesisOutputConfiguration struct {
	BaseOutputConfiguration
	Type        string `cfg:"type" default:"kinesis"`
	Project     string `cfg:"project"`
	Family      string `cfg:"family"`
	Group       string `cfg:"group"`
	Application string `cfg:"application"`
	ClientName  string `cfg:"client_name" default:"default"`
	StreamName  string `cfg:"stream_name"`
}

type KinesisOutputSettings 

type KinesisOutputSettings struct {
	cfg.AppId
	ClientName string
	StreamName string
}

func (KinesisOutputSettings) GetAppId 

func (s KinesisOutputSettings) GetAppId() cfg.AppId

func (KinesisOutputSettings) GetClientName 

func (s KinesisOutputSettings) GetClientName() string

func (KinesisOutputSettings) GetStreamName 

func (s KinesisOutputSettings) GetStreamName() string

type Message 

type Message struct {
	Attributes map[string]string `json:"attributes"`
	Body       string            `json:"body"`
	// contains filtered or unexported fields
}

func BuildAggregateMessage 

func BuildAggregateMessage(aggregateBody string, attributes ...map[string]string) *Message

func KafkaToGosoMessage 

func KafkaToGosoMessage(k kafka.Message) *Message

func MarshalJsonMessage 

func MarshalJsonMessage(body interface{}, attributes ...map[string]string) (*Message, error)

func MarshalProtobufMessage 

func MarshalProtobufMessage(body ProtobufEncodable, attributes ...map[string]string) (*Message, error)

func MessageUnmarshaller 

func MessageUnmarshaller(data *string) (*Message, error)

func NewJsonMessage 

func NewJsonMessage(body string, attributes ...map[string]string) *Message

func NewMessage 

func NewMessage(body string, attributes ...map[string]string) *Message

func NewProtobufMessage 

func NewProtobufMessage(body string, attributes ...map[string]string) *Message

func RawUnmarshaller 

func RawUnmarshaller(data *string) (*Message, error)

func SnsUnmarshaller 

func SnsUnmarshaller(data *string) (*Message, error)

func (*Message) GetAttributes 

func (m *Message) GetAttributes() map[string]string

func (*Message) MarshalToBytes 

func (m *Message) MarshalToBytes() ([]byte, error)

func (*Message) MarshalToString 

func (m *Message) MarshalToString() (string, error)

func (*Message) UnmarshalFromBytes 

func (m *Message) UnmarshalFromBytes(data []byte) error

func (*Message) UnmarshalFromString 

func (m *Message) UnmarshalFromString(data string) error

type MessageBodyCompressor 

type MessageBodyCompressor interface {
	Compress(body []byte) ([]byte, error)
	Decompress(body []byte) ([]byte, error)
}

type MessageBodyEncoder 

type MessageBodyEncoder interface {
	Encode(data interface{}) ([]byte, error)
	Decode(data []byte, out interface{}) error
}

func NewJsonEncoder 

func NewJsonEncoder() MessageBodyEncoder

func NewProtobufEncoder 

func NewProtobufEncoder() MessageBodyEncoder

type MessageEncoder 

type MessageEncoder interface {
	Encode(ctx context.Context, data interface{}, attributeSets ...map[string]string) (*Message, error)
	Decode(ctx context.Context, msg *Message, out interface{}) (context.Context, map[string]string, error)
}

type MessageEncoderSettings 

type MessageEncoderSettings struct {
	Encoding       EncodingType
	Compression    CompressionType
	EncodeHandlers []EncodeHandler
}

type MessagesPerRunnerCwNamingSettings 

type MessagesPerRunnerCwNamingSettings struct {
	Pattern string `cfg:"pattern,nodecode" default:"{project}/{env}/{family}/{group}-{app}"`
}

type MessagesPerRunnerCwServiceNamingSettings 

type MessagesPerRunnerCwServiceNamingSettings struct {
	Naming MessagesPerRunnerCwNamingSettings `cfg:"naming"`
}

type MessagesPerRunnerDdbNamingSettings 

type MessagesPerRunnerDdbNamingSettings struct {
	Pattern string `cfg:"pattern,nodecode" default:"{project}-{env}-{family}-{modelId}"`
}

type MessagesPerRunnerDdbServiceNamingSettings 

type MessagesPerRunnerDdbServiceNamingSettings struct {
	Naming MessagesPerRunnerDdbNamingSettings `cfg:"naming"`
}

type MessagesPerRunnerEcsSettings 

type MessagesPerRunnerEcsSettings struct {
	Cluster string `cfg:"cluster" default:"{app_project}-{env}-{app_family}"`
	Service string `cfg:"service" default:"{app_group}-{app_name}"`
}

type MessagesPerRunnerMetricSettings 

type MessagesPerRunnerMetricSettings struct {
	Enabled            bool                                      `cfg:"enabled"`
	Ecs                MessagesPerRunnerEcsSettings              `cfg:"ecs"`
	LeaderElection     string                                    `cfg:"leader_election" default:"streamMprMetrics"`
	MaxIncreasePercent float64                                   `cfg:"max_increase_percent" default:"200"`
	MaxIncreasePeriod  time.Duration                             `cfg:"max_increase_period" default:"5m"`
	DynamoDb           MessagesPerRunnerDdbServiceNamingSettings `cfg:"dynamodb"`
	Cloudwatch         MessagesPerRunnerCwServiceNamingSettings  `cfg:"cloudwatch"`
	Period             time.Duration                             `cfg:"period" default:"1m"`
	TargetValue        float64                                   `cfg:"target_value" default:"0"`
}

type MessagesPerRunnerMetricWriter 

type MessagesPerRunnerMetricWriter struct {
	kernel.EssentialModule
	kernel.ServiceStage
	// contains filtered or unexported fields
}

func NewMessagesPerRunnerMetricWriterWithInterfaces 

func NewMessagesPerRunnerMetricWriterWithInterfaces(logger log.Logger, leaderElection ddb.LeaderElection, cwClient gosoCloudwatch.Client, metricWriter metric.Writer, clock clock.Clock, ticker clock.Ticker, settings *MessagesPerRunnerMetricWriterSettings) (*MessagesPerRunnerMetricWriter, error)

func (*MessagesPerRunnerMetricWriter) Run 

func (u *MessagesPerRunnerMetricWriter) Run(ctx context.Context) error

type MessagesPerRunnerMetricWriterSettings 

type MessagesPerRunnerMetricWriterSettings struct {
	Ecs                 MessagesPerRunnerEcsSettings
	MaxIncreasePeriod   time.Duration
	UpdatePeriod        time.Duration
	CloudwatchNamespace string
	MaxIncreasePercent  float64
	MemberId            string
	QueueNames          []string
	TargetValue         float64
}

type ModelMsg 

type ModelMsg struct {
	CrudType string
	Version  int
	ModelId  string
	Body     string
}

func CreateModelMsg 

func CreateModelMsg(raw *Message) (*ModelMsg, error)

type NoOpOutput 

type NoOpOutput struct{}

func (*NoOpOutput) Write 

func (o *NoOpOutput) Write(_ context.Context, _ []WritableMessage) error

func (*NoOpOutput) WriteOne 

func (o *NoOpOutput) WriteOne(_ context.Context, _ WritableMessage) error

type Output 

type Output interface {
	WriteOne(ctx context.Context, msg WritableMessage) error
	Write(ctx context.Context, batch []WritableMessage) error
}

func NewConfigurableMultiOutput 

func NewConfigurableMultiOutput(ctx context.Context, config cfg.Config, logger log.Logger, base string) (Output, error)

func NewConfigurableOutput 

func NewConfigurableOutput(ctx context.Context, config cfg.Config, logger log.Logger, name string) (Output, error)

func NewFileOutput 

func NewFileOutput(_ cfg.Config, logger log.Logger, settings *FileOutputSettings) Output

func NewKinesisOutput 

func NewKinesisOutput(ctx context.Context, config cfg.Config, logger log.Logger, settings *KinesisOutputSettings) (Output, error)

func NewKinesisOutputWithInterfaces 

func NewKinesisOutputWithInterfaces(recordWriter gosoKinesis.RecordWriter) Output

func NewRedisListOutput 

func NewRedisListOutput(config cfg.Config, logger log.Logger, settings *RedisListOutputSettings) (Output, error)

func NewRedisListOutputWithInterfaces 

func NewRedisListOutputWithInterfaces(logger log.Logger, mw metric.Writer, client redis.Client, settings *RedisListOutputSettings) Output

func NewSnsOutput 

func NewSnsOutput(ctx context.Context, config cfg.Config, logger log.Logger, settings *SnsOutputSettings) (Output, error)

func NewSnsOutputWithInterfaces 

func NewSnsOutputWithInterfaces(logger log.Logger, topic sns.Topic) Output

func NewSqsOutput 

func NewSqsOutput(ctx context.Context, config cfg.Config, logger log.Logger, settings *SqsOutputSettings) (Output, error)

func NewSqsOutputWithInterfaces 

func NewSqsOutputWithInterfaces(logger log.Logger, queue sqs.Queue, settings *SqsOutputSettings) Output

type OutputChannel 

type OutputChannel interface {
	Read() ([]WritableMessage, bool)
	Write(msg []WritableMessage)
	Close()
}

func NewOutputChannel 

func NewOutputChannel(logger log.Logger, bufferSize int) OutputChannel

type OutputFactory 

type OutputFactory func(ctx context.Context, config cfg.Config, logger log.Logger, name string) (Output, error)

type PartitionedOutput 

type PartitionedOutput interface {
	Output
	// IsPartitionedOutput returns true if the output is writing to more than one shard/partition/bucket, and we need to
	// take care about writing messages to the correct partition.
	IsPartitionedOutput() bool
}

type PartitionerRand 

type PartitionerRand interface {
	Intn(n int) int
}

type Producer 

type Producer interface {
	WriteOne(ctx context.Context, model interface{}, attributeSets ...map[string]string) error
	Write(ctx context.Context, models interface{}, attributeSets ...map[string]string) error
}

func NewMultiProducer 

func NewMultiProducer(producers ...Producer) Producer

type ProducerDaemonAggregator 

type ProducerDaemonAggregator interface {
	Write(ctx context.Context, msg *Message) ([]AggregateFlush, error)
	Flush() ([]AggregateFlush, error)
}

func NewProducerDaemonAggregator 

func NewProducerDaemonAggregator(settings ProducerDaemonSettings, compression CompressionType, attributeSets ...map[string]string) (ProducerDaemonAggregator, error)

func NewProducerDaemonPartitionedAggregator 

func NewProducerDaemonPartitionedAggregator(logger log.Logger, settings ProducerDaemonSettings, compression CompressionType) (ProducerDaemonAggregator, error)

func NewProducerDaemonPartitionedAggregatorWithInterfaces 

func NewProducerDaemonPartitionedAggregatorWithInterfaces(logger log.Logger, rand PartitionerRand, aggregators int, createAggregator func(attributes map[string]string) (ProducerDaemonAggregator, error)) (ProducerDaemonAggregator, error)

type ProducerDaemonBatcher 

type ProducerDaemonBatcher interface {
	Append(msg *Message) ([]WritableMessage, error)
	Flush() []WritableMessage
}

func NewProducerDaemonBatcher 

func NewProducerDaemonBatcher(settings ProducerDaemonSettings) ProducerDaemonBatcher

type ProducerDaemonSettings 

type ProducerDaemonSettings struct {
	Enabled bool `cfg:"enabled" default:"false"`
	// Amount of time spend waiting for messages before sending out a batch.
	Interval time.Duration `cfg:"interval" default:"1m"`
	// Size of the buffer channel, i.e., how many messages can be in-flight at once? Generally it is a good idea to match
	// this with the number of runners.
	BufferSize int `cfg:"buffer_size" default:"10" validate:"min=1"`
	// Number of daemons running in the background, writing complete batches to the output.
	RunnerCount int `cfg:"runner_count" default:"10" validate:"min=1"`
	// How many SQS messages do we submit in a single batch? SQS can accept up to 10 messages per batch.
	// SNS doesn't support batching, so the value doesn't matter for SNS.
	BatchSize int `cfg:"batch_size" default:"10" validate:"min=1"`
	// How large may the sum of all messages in the aggregation be? For SQS you can't send more than 256 KB in one batch,
	// for SNS a single message can't be larger than 256 KB. We use 252 KB as default to leave some room for request
	// encoding and overhead.
	BatchMaxSize int `cfg:"batch_max_size" default:"258048" validate:"min=0"`
	// How many stream.Messages do we pack together in a single batch (one message in SQS) at once?
	AggregationSize int `cfg:"aggregation_size" default:"1" validate:"min=1"`
	// Maximum size in bytes of a batch. Defaults to 64 KB to leave some room for encoding overhead.
	// Set to 0 to disable limiting the maximum size for a batch (it will still not put more than BatchSize messages
	// in a batch).
	//
	// Note: Gosoline can't ensure your messages stay below this size if your messages are quite large (especially when
	// using compression). Imagine you already aggregated 40kb of compressed messages (around 53kb when base64 encoded)
	// and are now writing a message that compresses to 20 kb. Now your buffer reaches 60 kb and 80 kb base64 encoded.
	// Gosoline will not already output a 53 kb message if you requested 64 kb messages (it would accept a 56 kb message),
	// but after writing the next message
	AggregationMaxSize int `cfg:"aggregation_max_size" default:"65536" validate:"min=0"`
	// If you are writing to an output using a partition key, we ensure messages are still distributed to a partition
	// according to their partition key (although not necessary the same partition as without the producer daemon).
	// For this, we split the messages into buckets while collecting them, thus potentially aggregating more messages in
	// memory (depending on the number of buckets you configure).
	//
	// Note: This still does not guarantee that your messages are perfectly ordered - this is impossible as soon as you
	// have more than once producer. However, messages with the same partition key will end up in the same shard, so if
	// you are reading two different shards and one is much further behind than the other, you will not see messages
	// *massively* out of order - it should be roughly bounded by the time you buffer messages (the Interval setting) and
	// thus be not much more than a minute (using the default setting) instead of hours (if one shard is half a day behind
	// while the other is up-to-date).
	//
	// Second note: If you change the amount of partitions, messages might move between buckets and thus end up in different
	// shards than before. Thus, only do this if you can handle it (e.g., because no shard is currently lagging behind).
	PartitionBucketCount int `cfg:"partition_bucket_count" default:"128" validate:"min=1"`
	// Additional attributes we append to each message
	MessageAttributes map[string]string `cfg:"message_attributes"`
}

type ProducerMetadata 

type ProducerMetadata struct {
	Name          string `json:"name"`
	DaemonEnabled bool   `json:"daemon_enabled"`
}

type ProducerSettings 

type ProducerSettings struct {
	Output      string                 `cfg:"output"`
	Encoding    EncodingType           `cfg:"encoding"`
	Compression CompressionType        `cfg:"compression" default:"none"`
	Daemon      ProducerDaemonSettings `cfg:"daemon"`
}

type ProtobufEncodable 

type ProtobufEncodable interface {
	ToMessage() (proto.Message, error)
	EmptyMessage() proto.Message
	FromMessage(message proto.Message) error
}

type RawMessage 

type RawMessage struct {
	Body    interface{}
	Encoder MessageBodyEncoder
}

func NewRawJsonMessage 

func NewRawJsonMessage(body interface{}) *RawMessage

NewRawJsonMessage works like NewRawMessage with the encoder set to marshal the body as JSON.

func NewRawMessage 

func NewRawMessage(body interface{}, encoder MessageBodyEncoder) *RawMessage

NewRawMessage creates a new RawMessage. It uses the provided encoder to encode the message body.

func (*RawMessage) MarshalToBytes 

func (m *RawMessage) MarshalToBytes() ([]byte, error)

func (*RawMessage) MarshalToString 

func (m *RawMessage) MarshalToString() (string, error)

type RedisListInputSettings 

type RedisListInputSettings struct {
	cfg.AppId
	ServerName string
	Key        string
	WaitTime   time.Duration
}

type RedisListOutputSettings 

type RedisListOutputSettings struct {
	cfg.AppId
	ServerName string
	Key        string
	BatchSize  int
}

type RetryHandler 

type RetryHandler interface {
	Put(ctx context.Context, msg *Message) error
}

func NewManualSqsRetryHandler added in v0.14.0 

func NewManualSqsRetryHandler(logger log.Logger, queue sqs.Queue, settings *SqsOutputSettings) RetryHandler

func NewManualSqsRetryHandlerFromInterfaces added in v0.14.0 

func NewManualSqsRetryHandlerFromInterfaces(output Output) RetryHandler

type RetryHandlerFactory 

type RetryHandlerFactory func(ctx context.Context, config cfg.Config, logger log.Logger, name string) (Input, RetryHandler, error)

type RetryHandlerNoop 

type RetryHandlerNoop struct {
}

func NewRetryHandlerNoopWithInterfaces 

func NewRetryHandlerNoopWithInterfaces() RetryHandlerNoop

func (RetryHandlerNoop) Put 

func (r RetryHandlerNoop) Put(context.Context, *Message) error

type RetryHandlerSettings 

type RetryHandlerSettings struct {
	After       time.Duration `cfg:"after" default:"1m"`
	MaxAttempts int           `cfg:"max_attempts" default:"3"`
}

type RetryHandlerSqs 

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

func NewRetryHandlerSqsWithInterfaces 

func NewRetryHandlerSqsWithInterfaces(output Output, settings *RetryHandlerSqsSettings) *RetryHandlerSqs

func (*RetryHandlerSqs) Put 

func (r *RetryHandlerSqs) Put(ctx context.Context, msg *Message) error

type RetryHandlerSqsSettings 

type RetryHandlerSqsSettings struct {
	cfg.AppId
	RetryHandlerSettings
	ClientName          string `cfg:"client_name" default:"default"`
	MaxNumberOfMessages int32  `cfg:"max_number_of_messages" default:"10" validate:"min=1,max=10"`
	WaitTime            int32  `cfg:"wait_time" default:"10"`
	RunnerCount         int    `cfg:"runner_count" default:"1"`
	QueueId             string `cfg:"queue_id"`
}

type RetryingInput added in v0.14.0 

type RetryingInput interface {
	GetRetryHandler() (Input, RetryHandler)
}

type RunnableBatchConsumerCallback 

type RunnableBatchConsumerCallback interface {
	BatchConsumerCallback
	RunnableCallback
}

type RunnableCallback 

type RunnableCallback interface {
	Run(ctx context.Context) error
}

type RunnableConsumerCallback 

type RunnableConsumerCallback interface {
	ConsumerCallback
	RunnableCallback
}

type SizeRestrictedOutput 

type SizeRestrictedOutput interface {
	Output
	// GetMaxMessageSize returns the maximum size of a message for this output (or nil if there is no limit on message size).
	GetMaxMessageSize() *int
	// GetMaxBatchSize returns the maximum number of messages we can write at once to the output (or nil if there is no limit).
	GetMaxBatchSize() *int
}

type SnsInputConfiguration 

type SnsInputConfiguration struct {
	Type                string                        `cfg:"type" default:"sns"`
	ConsumerId          string                        `cfg:"id" validate:"required"`
	Family              string                        `cfg:"family" default:""`
	Group               string                        `cfg:"group" default:""`
	Application         string                        `cfg:"application" default:""`
	Targets             []SnsInputTargetConfiguration `cfg:"targets" validate:"min=1"`
	MaxNumberOfMessages int32                         `cfg:"max_number_of_messages" default:"10" validate:"min=1,max=10"`
	WaitTime            int32                         `cfg:"wait_time" default:"3" validate:"min=1"`
	VisibilityTimeout   int                           `cfg:"visibility_timeout" default:"30" validate:"min=1"`
	RunnerCount         int                           `cfg:"runner_count" default:"1" validate:"min=1"`
	RedrivePolicy       sqs.RedrivePolicy             `cfg:"redrive_policy"`
	ClientName          string                        `cfg:"client_name" default:"default"`
}

type SnsInputSettings 

type SnsInputSettings struct {
	cfg.AppId
	QueueId             string            `cfg:"queue_id"`
	MaxNumberOfMessages int32             `cfg:"max_number_of_messages" default:"10" validate:"min=1,max=10"`
	WaitTime            int32             `cfg:"wait_time"`
	RedrivePolicy       sqs.RedrivePolicy `cfg:"redrive_policy"`
	VisibilityTimeout   int               `cfg:"visibility_timeout"`
	RunnerCount         int               `cfg:"runner_count"`
	ClientName          string            `cfg:"client_name"`
}

func (SnsInputSettings) GetAppId 

func (s SnsInputSettings) GetAppId() cfg.AppId

func (SnsInputSettings) GetClientName 

func (s SnsInputSettings) GetClientName() string

func (SnsInputSettings) GetQueueId 

func (s SnsInputSettings) GetQueueId() string

func (SnsInputSettings) IsFifoEnabled 

func (s SnsInputSettings) IsFifoEnabled() bool

type SnsInputTarget 

type SnsInputTarget struct {
	cfg.AppId
	TopicId    string
	Attributes map[string]string
	ClientName string
}

func (SnsInputTarget) GetAppId 

func (t SnsInputTarget) GetAppId() cfg.AppId

func (SnsInputTarget) GetClientName 

func (t SnsInputTarget) GetClientName() string

func (SnsInputTarget) GetTopicId 

func (t SnsInputTarget) GetTopicId() string

type SnsInputTargetConfiguration 

type SnsInputTargetConfiguration struct {
	Family      string            `cfg:"family"`
	Group       string            `cfg:"group" validate:"required"`
	Application string            `cfg:"application" validate:"required"`
	TopicId     string            `cfg:"topic_id" validate:"required"`
	Attributes  map[string]string `cfg:"attributes"`
	ClientName  string            `cfg:"client_name" default:"default"`
}

type SnsOutputConfiguration 

type SnsOutputConfiguration struct {
	BaseOutputConfiguration
	Type        string `cfg:"type" default:"sns"`
	Project     string `cfg:"project"`
	Family      string `cfg:"family"`
	Group       string `cfg:"group"`
	Application string `cfg:"application"`
	TopicId     string `cfg:"topic_id" validate:"required"`
	ClientName  string `cfg:"client_name" default:"default"`
}

type SnsOutputSettings 

type SnsOutputSettings struct {
	cfg.AppId
	TopicId    string
	ClientName string
}

func (SnsOutputSettings) GetAppId 

func (s SnsOutputSettings) GetAppId() cfg.AppId

func (SnsOutputSettings) GetClientName 

func (s SnsOutputSettings) GetClientName() string

func (SnsOutputSettings) GetTopicId 

func (s SnsOutputSettings) GetTopicId() string

type SqsInputSettings 

type SqsInputSettings struct {
	cfg.AppId
	QueueId             string            `cfg:"queue_id"`
	MaxNumberOfMessages int32             `cfg:"max_number_of_messages" default:"10" validate:"min=1,max=10"`
	WaitTime            int32             `cfg:"wait_time"`
	VisibilityTimeout   int               `cfg:"visibility_timeout"`
	RunnerCount         int               `cfg:"runner_count"`
	Fifo                sqs.FifoSettings  `cfg:"fifo"`
	RedrivePolicy       sqs.RedrivePolicy `cfg:"redrive_policy"`
	ClientName          string            `cfg:"client_name"`
	Unmarshaller        string            `cfg:"unmarshaller" default:"msg"`
}

func (SqsInputSettings) GetAppId 

func (s SqsInputSettings) GetAppId() cfg.AppId

func (SqsInputSettings) GetClientName 

func (s SqsInputSettings) GetClientName() string

func (SqsInputSettings) GetQueueId 

func (s SqsInputSettings) GetQueueId() string

func (SqsInputSettings) IsFifoEnabled 

func (s SqsInputSettings) IsFifoEnabled() bool

type SqsOutputConfiguration 

type SqsOutputConfiguration struct {
	BaseOutputConfiguration
	Type              string            `cfg:"type" default:"sqs"`
	Project           string            `cfg:"project"`
	Family            string            `cfg:"family"`
	Group             string            `cfg:"group"`
	Application       string            `cfg:"application"`
	QueueId           string            `cfg:"queue_id" validate:"required"`
	VisibilityTimeout int               `cfg:"visibility_timeout" default:"30" validate:"gt=0"`
	RedrivePolicy     sqs.RedrivePolicy `cfg:"redrive_policy"`
	Fifo              sqs.FifoSettings  `cfg:"fifo"`
	ClientName        string            `cfg:"client_name" default:"default"`
}

type SqsOutputSettings 

type SqsOutputSettings struct {
	cfg.AppId
	ClientName        string
	Fifo              sqs.FifoSettings
	QueueId           string
	RedrivePolicy     sqs.RedrivePolicy
	VisibilityTimeout int
}

func (SqsOutputSettings) GetAppId 

func (s SqsOutputSettings) GetAppId() cfg.AppId

func (SqsOutputSettings) GetClientName 

func (s SqsOutputSettings) GetClientName() string

func (SqsOutputSettings) GetQueueId 

func (s SqsOutputSettings) GetQueueId() string

func (SqsOutputSettings) IsFifoEnabled 

func (s SqsOutputSettings) IsFifoEnabled() bool

type UnmarshallerFunc 

type UnmarshallerFunc func(data *string) (*Message, error)

type WritableMessage 

type WritableMessage interface {
	MarshalToBytes() ([]byte, error)
	MarshalToString() (string, error)
}

func MessagesToWritableMessages 

func MessagesToWritableMessages(batch []*Message) []WritableMessage

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