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 Go to latest Published: Feb 28, 2020 License: Apache-2.0 Imports: 15 Imported by: 478

Documentation

Overview

* Define the ctx key and value type.

Index

Constants

View Source 
const (

	// method name in  producer
	SendSync   CommunicationMode = "SendSync"
	SendOneway CommunicationMode = "SendOneway"
	SendAsync  CommunicationMode = "SendAsync"
	// method name in consumer
	ConsumerPush = "ConsumerPush"
	ConsumerPull = "ConsumerPull"

	PropCtxType                       = "ConsumeContextType"
	SuccessReturn   ConsumeReturnType = "SUCCESS"
	TimeoutReturn   ConsumeReturnType = "TIMEOUT"
	ExceptionReturn ConsumeReturnType = "EXCEPTION"
	NullReturn      ConsumeReturnType = "RETURNNULL"
	FailedReturn    ConsumeReturnType = "FAILED"
)
View Source 
const (
	PropertyKeySeparator                   = " "
	PropertyKeys                           = "KEYS"
	PropertyTags                           = "TAGS"
	PropertyWaitStoreMsgOk                 = "WAIT"
	PropertyDelayTimeLevel                 = "DELAY"
	PropertyRetryTopic                     = "RETRY_TOPIC"
	PropertyRealTopic                      = "REAL_TOPIC"
	PropertyRealQueueId                    = "REAL_QID"
	PropertyTransactionPrepared            = "TRAN_MSG"
	PropertyProducerGroup                  = "PGROUP"
	PropertyMinOffset                      = "MIN_OFFSET"
	PropertyMaxOffset                      = "MAX_OFFSET"
	PropertyBuyerId                        = "BUYER_ID"
	PropertyOriginMessageId                = "ORIGIN_MESSAGE_ID"
	PropertyTransferFlag                   = "TRANSFER_FLAG"
	PropertyCorrectionFlag                 = "CORRECTION_FLAG"
	PropertyMQ2Flag                        = "MQ2_FLAG"
	PropertyReconsumeTime                  = "RECONSUME_TIME"
	PropertyMsgRegion                      = "MSG_REGION"
	PropertyTraceSwitch                    = "TRACE_ON"
	PropertyUniqueClientMessageIdKeyIndex  = "UNIQ_KEY"
	PropertyMaxReconsumeTimes              = "MAX_RECONSUME_TIMES"
	PropertyConsumeStartTime               = "CONSUME_START_TIME"
	PropertyTranscationPreparedQueueOffset = "TRAN_PREPARED_QUEUE_OFFSET"
	PropertyTranscationCheckTimes          = "TRANSACTION_CHECK_TIMES"
	PropertyCheckImmunityTimeInSeconds     = "CHECK_IMMUNITY_TIME_IN_SECONDS"
	PropertyShardingKey                    = "SHARDING_KEY"
)

Variables

View Source 
var (
	ErrNoNameserver = errors.New("nameServerAddrs can't be empty.")
	ErrMultiIP      = errors.New("multiple IP addr does not support")
	ErrIllegalIP    = errors.New("IP addr error")
)
View Source 
var (
	CompressedFlag = 0x1

	MultiTagsFlag = 0x1 << 1

	TransactionNotType = 0

	TransactionPreparedType = 0x1 << 2

	TransactionCommitType = 0x2 << 2

	TransactionRollbackType = 0x3 << 2
)
View Source 
var PanicHandler func(interface{})

Functions

func BackBuffer 

func BackBuffer(b *bytes.Buffer)

func BackHeader 

func BackHeader(d []byte)

func ClearCompressedFlag 

func ClearCompressedFlag(flag int) int

func CreateMessageId 

func CreateMessageId(addr []byte, port int32, offset int64) string

func CreateUniqID 

func CreateUniqID() string

func GetBuffer 

func GetBuffer() *bytes.Buffer

func GetHeader 

func GetHeader() []byte

func GetTransactionValue 

func GetTransactionValue(flag int) int

func IsRemotingErr 

func IsRemotingErr(err error) bool

func NewMQClientErr 

func NewMQClientErr(code int16, msg string) error

func NewRemotingErr 

func NewRemotingErr(s string) error

func Pid 

func Pid() int16

func ResetTransactionValue 

func ResetTransactionValue(flag int, typeFlag int) int

func WithConcurrentlyCtx 

func WithConcurrentlyCtx(ctx context.Context, c *ConsumeConcurrentlyContext) context.Context

func WithConsumerCtx 

func WithConsumerCtx(ctx context.Context, c *ConsumeMessageContext) context.Context

WithConsumerCtx set ConsumeMessageContext in PushConsumer

func WithMethod 

func WithMethod(ctx context.Context, m CommunicationMode) context.Context

WithMethod set call method name

func WithOrderlyCtx 

func WithOrderlyCtx(ctx context.Context, c *ConsumeOrderlyContext) context.Context

func WithProducerCtx 

func WithProducerCtx(ctx context.Context, c *ProducerCtx) context.Context

func WithRecover 

func WithRecover(fn func())

Types

type AccessChannel 

type AccessChannel int
const (
	// connect to private IDC cluster.
	Local AccessChannel = iota
	// connect to Cloud service.
	Cloud
)

type CommunicationMode 

type CommunicationMode string

func GetMethod 

func GetMethod(ctx context.Context) CommunicationMode

GetMethod get call method name

type ConsumeConcurrentlyContext 

type ConsumeConcurrentlyContext struct {
	MQ                        MessageQueue
	DelayLevelWhenNextConsume int
	AckIndex                  int32
}

func GetConcurrentlyCtx 

func GetConcurrentlyCtx(ctx context.Context) (*ConsumeConcurrentlyContext, bool)

func NewConsumeConcurrentlyContext 

func NewConsumeConcurrentlyContext() *ConsumeConcurrentlyContext

type ConsumeMessageContext 

type ConsumeMessageContext struct {
	ConsumerGroup string
	Msgs          []*MessageExt
	MQ            *MessageQueue
	Success       bool
	Status        string
	// mqTractContext
	Properties map[string]string
}

func GetConsumerCtx 

func GetConsumerCtx(ctx context.Context) (*ConsumeMessageContext, bool)

GetConsumerCtx get ConsumeMessageContext, only legal in PushConsumer. so should add bool return param indicate whether exist.

type ConsumeOrderlyContext 

type ConsumeOrderlyContext struct {
	MQ                            MessageQueue
	AutoCommit                    bool
	SuspendCurrentQueueTimeMillis int
}

func GetOrderlyCtx 

func GetOrderlyCtx(ctx context.Context) (*ConsumeOrderlyContext, bool)

func NewConsumeOrderlyContext 

func NewConsumeOrderlyContext() *ConsumeOrderlyContext

type ConsumeReturnType 

type ConsumeReturnType string

func (ConsumeReturnType) Ordinal 

func (c ConsumeReturnType) Ordinal() int

type Credentials 

type Credentials struct {
	AccessKey     string
	SecretKey     string
	SecurityToken string
}

func (Credentials) IsEmpty 

func (c Credentials) IsEmpty() bool

type CtxKey 

type CtxKey int

type Interceptor 

type Interceptor func(ctx context.Context, req, reply interface{}, next Invoker) error

Interceptor intercepts the invoke of a producer/consumer on messages. In PushConsumer call, the req is []*MessageExt type and the reply is ConsumeResultHolder, use type assert to get real type.

func ChainInterceptors 

func ChainInterceptors(interceptors ...Interceptor) Interceptor

type Invoker 

type Invoker func(ctx context.Context, req, reply interface{}) error

Invoker finish a message invoke on producer/consumer.

type LocalTransactionState 

type LocalTransactionState int
const (
	CommitMessageState LocalTransactionState = iota + 1
	RollbackMessageState
	UnknowState
)

type MQBrokerErr 

type MQBrokerErr struct {
	ResponseCode int16
	ErrorMessage string
}

func (MQBrokerErr) Error 

func (e MQBrokerErr) Error() string

type MQClientErr 

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

func (MQClientErr) Error 

func (e MQClientErr) Error() string

type Message 

type Message struct {
	Topic         string
	Body          []byte
	Flag          int32
	TransactionId string
	Batch         bool
	// Queue is the queue that messages will be sent to. the value must be set if want to custom the queue of message,
	// just ignore if not.
	Queue *MessageQueue
	// contains filtered or unexported fields
}

func NewMessage 

func NewMessage(topic string, body []byte) *Message

func (*Message) GetKeys 

func (m *Message) GetKeys() string

func (*Message) GetProperties 

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

func (*Message) GetProperty 

func (m *Message) GetProperty(key string) string

func (*Message) GetShardingKey 

func (m *Message) GetShardingKey() string

func (*Message) GetTags 

func (m *Message) GetTags() string

func (*Message) Marshal 

func (m *Message) Marshal() []byte

func (*Message) MarshallProperties 

func (m *Message) MarshallProperties() string

func (*Message) RemoveProperty 

func (m *Message) RemoveProperty(key string) string

func (*Message) String 

func (m *Message) String() string

func (*Message) UnmarshalProperties 

func (m *Message) UnmarshalProperties(data []byte)

unmarshalProperties parse data into property kv pairs.

func (*Message) WithDelayTimeLevel 

func (m *Message) WithDelayTimeLevel(level int) *Message

WithDelayTimeLevel set message delay time to consume. reference delay level definition: 1s 5s 10s 30s 1m 2m 3m 4m 5m 6m 7m 8m 9m 10m 20m 30m 1h 2h delay level starts from 1. for example, if we set param level=1, then the delay time is 1s.

func (*Message) WithKeys 

func (m *Message) WithKeys(keys []string) *Message

func (*Message) WithProperties 

func (m *Message) WithProperties(p map[string]string)

func (*Message) WithProperty 

func (m *Message) WithProperty(key, value string)

func (*Message) WithShardingKey 

func (m *Message) WithShardingKey(key string) *Message

func (*Message) WithTag 

func (m *Message) WithTag(tags string) *Message

type MessageExt 

type MessageExt struct {
	Message
	MsgId                     string
	StoreSize                 int32
	QueueOffset               int64
	SysFlag                   int32
	BornTimestamp             int64
	BornHost                  string
	StoreTimestamp            int64
	StoreHost                 string
	CommitLogOffset           int64
	BodyCRC                   int32
	ReconsumeTimes            int32
	PreparedTransactionOffset int64
}

func DecodeMessage 

func DecodeMessage(data []byte) []*MessageExt

func (*MessageExt) GetRegionID 

func (msgExt *MessageExt) GetRegionID() string

func (*MessageExt) GetTags 

func (msgExt *MessageExt) GetTags() string

func (*MessageExt) IsTraceOn 

func (msgExt *MessageExt) IsTraceOn() string

func (*MessageExt) String 

func (msgExt *MessageExt) String() string

type MessageID 

type MessageID struct {
	Addr   string
	Port   int
	Offset int64
}

func UnmarshalMsgID 

func UnmarshalMsgID(id []byte) (*MessageID, error)

type MessageQueue 

type MessageQueue struct {
	Topic      string `json:"topic"`
	BrokerName string `json:"brokerName"`
	QueueId    int    `json:"queueId"`
}

MessageQueue message queue

func (*MessageQueue) HashCode 

func (mq *MessageQueue) HashCode() int

func (*MessageQueue) String 

func (mq *MessageQueue) String() string

type MessageType 

type MessageType int
const (
	NormalMsg MessageType = iota
	TransMsgHalf
	TransMsgCommit
	DelayMsg
)

type NamesrvAddr 

type NamesrvAddr []string

func NewNamesrvAddr 

func NewNamesrvAddr(s ...string) (NamesrvAddr, error)

func (NamesrvAddr) Check 

func (addr NamesrvAddr) Check() error

type ProducerCtx 

type ProducerCtx struct {
	ProducerGroup     string
	Message           Message
	MQ                MessageQueue
	BrokerAddr        string
	BornHost          string
	CommunicationMode CommunicationMode
	SendResult        *SendResult
	Props             map[string]string
	MsgType           MessageType
	Namespace         string
}

func GetProducerCtx 

func GetProducerCtx(ctx context.Context) *ProducerCtx

type PullResult 

type PullResult struct {
	NextBeginOffset      int64
	MinOffset            int64
	MaxOffset            int64
	Status               PullStatus
	SuggestWhichBrokerId int64
	// contains filtered or unexported fields
}

PullResult the pull result

func (*PullResult) GetBody 

func (result *PullResult) GetBody() []byte

func (*PullResult) GetMessageExts 

func (result *PullResult) GetMessageExts() []*MessageExt

func (*PullResult) GetMessages 

func (result *PullResult) GetMessages() []*Message

func (*PullResult) SetBody 

func (result *PullResult) SetBody(data []byte)

func (*PullResult) SetMessageExts 

func (result *PullResult) SetMessageExts(msgExts []*MessageExt)

func (*PullResult) String 

func (result *PullResult) String() string

type PullStatus 

type PullStatus int

PullStatus pull Status 

const (
	PullFound PullStatus = iota
	PullNoNewMsg
	PullNoMsgMatched
	PullOffsetIllegal
	PullBrokerTimeout
)

predefined pull Status

type RemotingErr 

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

func (*RemotingErr) Error 

func (e *RemotingErr) Error() string

type SendResult 

type SendResult struct {
	Status        SendStatus
	MsgID         string
	MessageQueue  *MessageQueue
	QueueOffset   int64
	TransactionID string
	OffsetMsgID   string
	RegionID      string
	TraceOn       bool
}

SendResult RocketMQ send result

func (*SendResult) String 

func (result *SendResult) String() string

SendResult send message result to string(detail result)

type SendStatus 

type SendStatus int

SendStatus of message 

const (
	SendOK SendStatus = iota
	SendFlushDiskTimeout
	SendFlushSlaveTimeout
	SendSlaveNotAvailable
	SendUnknownError

	FlagCompressed = 0x1
	MsgIdLength    = 8 + 8
)

type TraceConfig 

type TraceConfig struct {
	TraceTopic   string
	Access       AccessChannel
	NamesrvAddrs []string
	Credentials  // acl config for trace. omit if acl is closed on broker.
}

config for message trace.

type TransactionListener 

type TransactionListener interface {
	//  When send transactional prepare(half) message succeed, this method will be invoked to execute local transaction.
	ExecuteLocalTransaction(*Message) LocalTransactionState

	// When no response to prepare(half) message. broker will send check message to check the transaction status, and this
	// method will be invoked to get local transaction status.
	CheckLocalTransaction(*MessageExt) LocalTransactionState
}

type TransactionSendResult 

type TransactionSendResult struct {
	*SendResult
	State LocalTransactionState
}

SendResult RocketMQ send result

Source Files

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