add queue package

core/queue/multiqueuepusher.go

@@ -0,0 +1,31 @@
+package queue
+
+import "github.com/tal-tech/go-zero/core/errorx"
+
+type MultiQueuePusher struct {
+	name    string
+	pushers []Pusher
+}
+
+func NewMultiQueuePusher(pushers []Pusher) Pusher {
+	return &MultiQueuePusher{
+		name:    generateName(pushers),
+		pushers: pushers,
+	}
+}
+
+func (pusher *MultiQueuePusher) Name() string {
+	return pusher.name
+}
+
+func (pusher *MultiQueuePusher) Push(message string) error {
+	var batchError errorx.BatchError
+
+	for _, each := range pusher.pushers {
+		if err := each.Push(message); err != nil {
+			batchError.Add(err)
+		}
+	}
+
+	return batchError.Err()
+}