azbus

package module
v0.0.5 Latest Latest
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 Go to latest Published: May 10, 2024 License: MIT Imports: 12 Imported by: 0

Documentation

Overview

Package azbus provides a simple wrapper for Azure Service Bus.

Index

Constants

This section is empty.

Variables

View Source 
var (
	// ErrQueueNotFound is returned when the queue is not found.
	ErrQueueNotFound = errors.New("queue not found")
	// ErrTopicNotFound is returned when the topic is not found.
	ErrTopicNotFound = errors.New("topic not found")
	// ErrSubscriptionNotFound is returned when the subscription is not found.
	ErrSubscriptionNotFound = errors.New("subscription not found")
	// ErrConflict is returned when the resource already exists.
	ErrConflict = errors.New("already exists")
	// ErrInvalidMessage is returned when the message is invalid.
	ErrInvalidMessage = errors.New("invalid message")
	// ErrInvalidSequenceNumber is returned when the sequence number is invalid.
	ErrInvalidSequenceNumber = errors.New("invalid sequence number")
	// ErrInvalidScheduleTime is returned when the schedule time is invalid.
	ErrInvalidScheduleTime = errors.New("invalid schedule time")
)

Functions

func GetFromNameRule 

func GetFromNameRule(name string) *admin.RuleProperties

GetFromNameRule returns a rule that filters messages by the given name.

func GetToNameRule 

func GetToNameRule(name string) *admin.RuleProperties

GetToNameRule returns a rule that filters messages by the given name.

func SetLog 

func SetLog(l *zap.SugaredLogger)

SetLog sets the logger from outside the package.

func SetReceiveBatchSize added in v0.0.2 

func SetReceiveBatchSize(size int)

SetReceiveBatchSize sets the batch size for receiving messages.

Types

type Attributes 

type Attributes map[string]interface{}

Attributes represents the attributes of a message.

type Manager 

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

Manager represents a admin client of Azure Service Bus.

func NewManager 

func NewManager(connectionString string) (*Manager, error)

NewManager creates a new instance of Manager.

func (*Manager) CreateQueue 

func (m *Manager) CreateQueue(queueName string) (*Queue, error)

CreateQueue creates a Queue with the given name if not exists, and returns the queue instance.

func (*Manager) CreateSubscription 

func (m *Manager) CreateSubscription(topicName, subName string) (*Subscription, error)

CreateSubscription creates a Subscription with the given name if not exists, and returns the subscription instance.

func (*Manager) CreateSubscriptionWithRule 

func (m *Manager) CreateSubscriptionWithRule(topicName, subName string, rule *admin.RuleProperties) (*Subscription, error)

CreateSubscriptionWithRule creates a Subscription with the given name and rule if not exists, and returns the subscription instance.

func (*Manager) CreateTopic 

func (m *Manager) CreateTopic(topicName string) (*Topic, error)

CreateTopic creates a Topic with the given name if not exists, and returns the topic instance.

func (*Manager) DeleteQueue 

func (m *Manager) DeleteQueue(queueName string) error

DeleteQueue deletes a Queue with the given name if exists.

func (*Manager) DeleteSubscription 

func (m *Manager) DeleteSubscription(topicName, subName string) error

DeleteSubscription deletes a Subscription with the given name if exists.

func (*Manager) DeleteTopic 

func (m *Manager) DeleteTopic(topicName string) error

DeleteTopic deletes a Topic with the given name if exists.

func (*Manager) SetLockDuration 

func (m *Manager) SetLockDuration(s string)

SetLockDuration sets the default lock duration of the queue, it will be used when creating new queue or subscription.

func (*Manager) SetMaxSizeMB 

func (m *Manager) SetMaxSizeMB(i int32)

SetMaxSizeMB sets the default max size in megabytes of the queue, it will be used when creating new queue or topic.

func (*Manager) SetMessageTimeToLive 

func (m *Manager) SetMessageTimeToLive(s string)

SetMessageTimeToLive sets the default message time to live of the queue, it will be used when creating new queue, topic or subscription.

func (*Manager) String 

func (m *Manager) String() string

type Message 

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

Message represents a message received from Azure Service Bus.

func (*Message) GetAttributes 

func (m *Message) GetAttributes() Attributes

GetAttributes returns the attributes of the message.

func (*Message) GetContent 

func (m *Message) GetContent() string

GetContent returns the content of the message in string.

func (*Message) GetData 

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

GetData returns the data of the message in bytes.

func (*Message) GetID 

func (m *Message) GetID() string

GetID returns the ID of the message.

func (*Message) GetTags 

func (m *Message) GetTags() Tags

GetTags returns the local tags of the message.

func (*Message) SetTags 

func (m *Message) SetTags(tag Tags)

SetTags sets the local tags of the message. It will not be sent to the server, and only used locally.

func (*Message) String 

func (m *Message) String() string

String returns the string representation of the message.

type Queue 

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

Queue represents a instance of Azure Service Bus Queue.

func NewQueue 

func NewQueue(connectionString, queueName string) (*Queue, error)

NewQueue creates a new instance of Queue.

func NewQueueWithPeekLockMode 

func NewQueueWithPeekLockMode(connectionString, queueName string) (*Queue, error)

NewQueueWithPeekLockMode creates a new instance of Queue with PeekLock mode.

func NewQueueWithReceiveAndDeleteMode 

func NewQueueWithReceiveAndDeleteMode(connectionString, queueName string) (*Queue, error)

NewQueueWithReceiveAndDeleteMode creates a new instance of Queue with ReceiveAndDelete mode.

func (*Queue) Abandon 

func (q *Queue) Abandon(m *Message) error

Abandon marks a message as not taken, so it will be returned immediately.

func (*Queue) Close 

func (q *Queue) Close() error

Close closes the sender and receiver of the queue.

func (*Queue) Complete 

func (q *Queue) Complete(m *Message) error

Complete marks a message as completed, so it will be deleted from the queue.

func (*Queue) GetStatus 

func (q *Queue) GetStatus() (*Status, error)

GetStatus returns the status of the queue.

func (*Queue) Receive 

func (q *Queue) Receive() ([]*Message, error)

Receive returns at most 10 messages from the queue. It returns no error if no message is available. Don't call Receive() concurrently, or would be blocked by the mutex.

func (*Queue) Schedule 

func (q *Queue) Schedule(data []byte, attrs Attributes, sched time.Time) (int64, error)

Schedule schedules a message to be enqueue at the given time, and returns the sequence number of the message.

func (*Queue) Send 

func (q *Queue) Send(data []byte, attrs Attributes) error

Send sends a message to the queue immediately. If attrs is nil and data is empty, an error will be returned.

func (*Queue) String 

func (q *Queue) String() string

func (*Queue) Take 

func (q *Queue) Take(m *Message) error

Take marks a message as taken, so it will not be returned before the visibility timeout. It usually used to extend the time to process the message.

type Status 

type Status struct {
	SizeInBytes                    int64 `json:"size_bytes,omitempty"`
	TotalMessageCount              int64 `json:"total_message,omitempty"`
	ActiveMessageCount             int32 `json:"active_message,omitempty"`
	DeadLetterMessageCount         int32 `json:"dead_letter_message,omitempty"`
	ScheduledMessageCount          int32 `json:"scheduled_message,omitempty"`
	SubscriptionCount              int32 `json:"subscription,omitempty"`
	TransferMessageCount           int32 `json:"transfer_message,omitempty"`
	TransferDeadLetterMessageCount int32 `json:"transfer_dead_letter_message,omitempty"`
}

Status represents the status of a queue or topic.

type Subscription 

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

Subscription wraps the Azure Service Bus subscription of a topic.

func (*Subscription) Abandon 

func (s *Subscription) Abandon(m *Message) error

Abandon marks a message as not taken, so it will be returned immediately.

func (*Subscription) Close 

func (s *Subscription) Close() error

Close closes the receiver of the subscription.

func (*Subscription) Complete 

func (s *Subscription) Complete(m *Message) error

Complete marks a message as completed, so it will be deleted from the queue.

func (*Subscription) GetStatus 

func (s *Subscription) GetStatus() (*Status, error)

GetStatus returns the status of the subscription.

func (*Subscription) Receive 

func (s *Subscription) Receive() ([]*Message, error)

Receive returns at most 10 messages from the queue. It returns no error if no message is available. Don't call Receive() concurrently, or would be blocked by the mutex.

func (*Subscription) String 

func (s *Subscription) String() string

func (*Subscription) Take 

func (s *Subscription) Take(m *Message) error

Take marks a message as taken, so it will not be returned before the visibility timeout. It usually used to extend the time to process the message.

type Tags 

type Tags map[string]interface{}

Tags represents the tags of a message.

type Topic 

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

Topic wraps the Azure Service Bus topic and its related subscriptions.

func NewTopic 

func NewTopic(connectionString, topicName string) (*Topic, error)

NewTopic creates a new topic instance with the given connection string and topic name.

func (*Topic) Close 

func (t *Topic) Close() error

Close closes the topic and its related subscriptions.

func (*Topic) GetStatus 

func (t *Topic) GetStatus() (*Status, error)

GetStatus returns the status of the topic.

func (*Topic) NewSubscription 

func (t *Topic) NewSubscription(subName string) (*Subscription, error)

NewSubscription returns the subscription with the given name of the topic. It returns error if the subscription does not exist.

func (*Topic) NewSubscriptionWithPeekLockMode 

func (t *Topic) NewSubscriptionWithPeekLockMode(subName string) (*Subscription, error)

NewSubscriptionWithPeekLockMode returns the subscription with the given name of the topic with PeekLock mode. It returns error if the subscription does not exist.

func (*Topic) NewSubscriptionWithReceiveAndDeleteMode 

func (t *Topic) NewSubscriptionWithReceiveAndDeleteMode(subName string) (*Subscription, error)

NewSubscriptionWithReceiveAndDeleteMode returns the subscription with the given name of the topic with ReceiveAndDelete mode. It returns error if the subscription does not exist.

func (*Topic) Schedule 

func (t *Topic) Schedule(data []byte, attrs Attributes, sched time.Time) (int64, error)

Schedule schedules a message to be enqueue at the given time, and returns the sequence number of the message.

func (*Topic) Send 

func (t *Topic) Send(data []byte, attrs Attributes) error

Send sends a message to the queue immediately. If attrs is nil and data is empty, an error will be returned.

func (*Topic) String 

func (t *Topic) String() string

Source Files

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