71 lines
1.5 KiB
Go
71 lines
1.5 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package inmemory
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import (
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"context"
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"github.com/asaskevich/EventBus"
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"github.com/dapr/components-contrib/pubsub"
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"github.com/dapr/kit/logger"
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)
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type bus struct {
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bus EventBus.Bus
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ctx context.Context
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log logger.Logger
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}
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func New(logger logger.Logger) pubsub.PubSub {
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return &bus{
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log: logger,
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}
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}
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func (a *bus) Close() error {
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return nil
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}
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func (a *bus) Features() []pubsub.Feature {
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return nil
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}
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func (a *bus) Init(metadata pubsub.Metadata) error {
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a.bus = EventBus.New()
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a.ctx = context.Background()
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return nil
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}
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func (a *bus) Publish(req *pubsub.PublishRequest) error {
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a.bus.Publish(req.Topic, a.ctx, req.Data)
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return nil
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}
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func (a *bus) Subscribe(req pubsub.SubscribeRequest, handler pubsub.Handler) error {
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return a.bus.Subscribe(req.Topic, func(ctx context.Context, data []byte) {
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for i := 0; i < 10; i++ {
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if err := handler(ctx, &pubsub.NewMessage{Data: data, Topic: req.Topic, Metadata: req.Metadata}); err != nil {
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a.log.Error(err)
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continue
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}
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return
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}
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})
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}
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