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package notification
import (
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/util"
"google.golang.org/protobuf/proto"
)
type MessageQueue interface {
// GetName gets the name to locate the configuration in filer.toml file
GetName() string
// Initialize initializes the file store
Initialize(configuration util.Configuration, prefix string) error
SendMessage(key string, message proto.Message) error
}
var (
MessageQueues []MessageQueue
Queue MessageQueue
)
func LoadConfiguration(config *util.ViperProxy, prefix string) {
if config == nil {
return
}
validateOneEnabledQueue(config)
for _, queue := range MessageQueues {
if config.GetBool(prefix + queue.GetName() + ".enabled") {
if err := queue.Initialize(config, prefix+queue.GetName()+"."); err != nil {
glog.Fatalf("Failed to initialize notification for %s: %+v",
queue.GetName(), err)
}
Queue = queue
glog.V(0).Infof("Configure notification message queue for %s", queue.GetName())
return
}
}
}
func validateOneEnabledQueue(config *util.ViperProxy) {
enabledQueue := ""
for _, queue := range MessageQueues {
if config.GetBool(queue.GetName() + ".enabled") {
if enabledQueue == "" {
enabledQueue = queue.GetName()
} else {
glog.Fatalf("Notification message queue is enabled for both %s and %s", enabledQueue, queue.GetName())
}
}
}
}
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