164 lines
3.3 KiB
Go
164 lines
3.3 KiB
Go
package broker
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import (
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"context"
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"crypto/tls"
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"github.com/unistack-org/micro/v3/codec"
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"github.com/unistack-org/micro/v3/logger"
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"github.com/unistack-org/micro/v3/registry"
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)
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type Options struct {
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Addrs []string
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Secure bool
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Codec codec.Marshaler
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// Logger
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Logger logger.Logger
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// Handler executed when errors occur processing messages
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ErrorHandler Handler
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TLSConfig *tls.Config
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// Registry used for clustering
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Registry registry.Registry
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// Other options for implementations of the interface
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// can be stored in a context
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Context context.Context
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}
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func NewOptions() Options {
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return Options{
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Context: context.Background(),
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}
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}
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type PublishOptions struct {
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// Other options for implementations of the interface
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// can be stored in a context
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Context context.Context
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}
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type SubscribeOptions struct {
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// AutoAck ack messages if handler returns nil err
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AutoAck bool
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// Handler executed when errors occur processing messages
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ErrorHandler Handler
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// Subscribers with the same group name
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// will create a shared subscription where each
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// receives a subset of messages.
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Group string
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// Other options for implementations of the interface
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// can be stored in a context
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Context context.Context
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}
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type Option func(*Options)
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type PublishOption func(*PublishOptions)
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// PublishContext set context
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func PublishContext(ctx context.Context) PublishOption {
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return func(o *PublishOptions) {
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o.Context = ctx
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}
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}
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type SubscribeOption func(*SubscribeOptions)
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func NewSubscribeOptions(opts ...SubscribeOption) SubscribeOptions {
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opt := SubscribeOptions{
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AutoAck: true,
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Context: context.Background(),
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}
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for _, o := range opts {
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o(&opt)
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}
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return opt
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}
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// Addrs sets the host addresses to be used by the broker
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func Addrs(addrs ...string) Option {
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return func(o *Options) {
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o.Addrs = addrs
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}
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}
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// Codec sets the codec used for encoding/decoding used where
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// a broker does not support headers
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func Codec(c codec.Marshaler) Option {
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return func(o *Options) {
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o.Codec = c
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}
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}
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// SubscribeAutoAck will disable auto acking of messages
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// after they have been handled.
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func SubscribeAutoAck(b bool) SubscribeOption {
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return func(o *SubscribeOptions) {
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o.AutoAck = b
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}
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}
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// ErrorHandler will catch all broker errors that cant be handled
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// in normal way, for example Codec errors
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func ErrorHandler(h Handler) Option {
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return func(o *Options) {
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o.ErrorHandler = h
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}
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}
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// SubscribeErrorHandler will catch all broker errors that cant be handled
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// in normal way, for example Codec errors
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func SubscribeErrorHandler(h Handler) SubscribeOption {
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return func(o *SubscribeOptions) {
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o.ErrorHandler = h
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}
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}
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// SubscribeGroup sets the name of the queue to share messages on
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func SubscribeGroup(name string) SubscribeOption {
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return func(o *SubscribeOptions) {
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o.Group = name
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}
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}
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func Registry(r registry.Registry) Option {
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return func(o *Options) {
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o.Registry = r
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}
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}
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// Secure communication with the broker
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func Secure(b bool) Option {
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return func(o *Options) {
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o.Secure = b
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}
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}
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// Specify TLS Config
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func TLSConfig(t *tls.Config) Option {
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return func(o *Options) {
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o.TLSConfig = t
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}
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}
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// Logger sets the logger
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func Logger(l logger.Logger) Option {
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return func(o *Options) {
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o.Logger = l
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}
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}
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// SubscribeContext set context
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func SubscribeContext(ctx context.Context) SubscribeOption {
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return func(o *SubscribeOptions) {
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o.Context = ctx
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}
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}
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