You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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// Package gocdk_pub_sub supports the Go CDK (Cloud Development Kit) PubSub API,
// which in turn supports many providers, including Amazon SNS/SQS, Azure Service Bus,
// Google Cloud PubSub, and RabbitMQ.
//
// In the config, select a provider and topic using a URL. See
// https://godoc.org/gocloud.dev/pubsub and its sub-packages for details.
//
// The Go CDK PubSub API does not support administrative operations like topic
// creation. Create the topic using a UI, CLI or provider-specific API before running
// weed.
//
// The Go CDK obtains credentials via environment variables and other
// provider-specific default mechanisms. See the provider's documentation for
// details.
package gocdk_pub_sub
import ( "context" "fmt"
"github.com/joeslay/seaweedfs/weed/glog" "github.com/joeslay/seaweedfs/weed/notification" "github.com/joeslay/seaweedfs/weed/util" "github.com/golang/protobuf/proto" "gocloud.dev/pubsub" _ "gocloud.dev/pubsub/awssnssqs" // _ "gocloud.dev/pubsub/azuresb"
_ "gocloud.dev/pubsub/gcppubsub" _ "gocloud.dev/pubsub/natspubsub" _ "gocloud.dev/pubsub/rabbitpubsub" )
func init() { notification.MessageQueues = append(notification.MessageQueues, &GoCDKPubSub{}) }
type GoCDKPubSub struct { topicURL string topic *pubsub.Topic }
func (k *GoCDKPubSub) GetName() string { return "gocdk_pub_sub" }
func (k *GoCDKPubSub) Initialize(config util.Configuration) error { k.topicURL = config.GetString("topic_url") glog.V(0).Infof("notification.gocdk_pub_sub.topic_url: %v", k.topicURL) topic, err := pubsub.OpenTopic(context.Background(), k.topicURL) if err != nil { glog.Fatalf("Failed to open topic: %v", err) } k.topic = topic return nil }
func (k *GoCDKPubSub) SendMessage(key string, message proto.Message) error { bytes, err := proto.Marshal(message) if err != nil { return err } ctx := context.Background() err = k.topic.Send(ctx, &pubsub.Message{ Body: bytes, Metadata: map[string]string{"key": key}, }) if err != nil { return fmt.Errorf("send message via Go CDK pubsub %s: %v", k.topicURL, err) } return nil }
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