change map to slice

models/driver.go

@@ -2,42 +2,45 @@ package models
 
 // driver model
 type Driver struct {
-	Type  string          `json:"type"`  // driver type name of driver in collection
-	Buses map[string]*Bus `json:"buses"` // name of driver bus
+	Type  string `json:"type"`            // driver type name of driver in collection
+	Buses []*Bus `json:"buses,omitempty"` // name of driver bus
 }
 
 func (d *Driver) AddNewBus(name string) *Bus {
-	if d.Buses == nil {
-		d.Buses = make(map[string]*Bus)
+	for _, b := range d.Buses {
+		if b.Name == name {
+			return b
+		}
 	}
-	if b, ok := d.Buses[name]; ok {
-		return b
-	}
-	d.Buses[name] = &Bus{Name: name}
-	return d.Buses[name]
+	b := &Bus{Name: name}
+	d.Buses = append(d.Buses, b)
+	return b
 }
 
-func (d *Driver) AddBuses(buses map[string]*Bus) {
-	if d.Buses == nil {
-		d.Buses = make(map[string]*Bus)
-	}
-	for key, newBus := range buses {
-		if currentBus, ok := d.Buses[key]; ok {
+func (d *Driver) AddBuses(buses []*Bus) {
+next:
+	for _, newBus := range buses {
+		for _, currentBus := range d.Buses {
+			if currentBus.Name != newBus.Name {
+				continue
+			}
 			currentBus.AddAddress(newBus.Address...)
 			if newBus.Topic == nil {
-				continue
+				continue next
 			}
 			currentBus.AddSubscription(newBus.Topic.Subscribe...)
 			currentBus.AddPublish(newBus.Topic.Publish...)
-			continue
+			continue next
 		}
-		d.Buses[key] = newBus
+		d.Buses = append(d.Buses, newBus)
 	}
 }
 
 func (d *Driver) GetBus(name string) *Bus {
-	if b, ok := d.Buses[name]; ok {
-		return b
+	for _, b := range d.Buses {
+		if b.Name == name {
+			return b
+		}
 	}
 	return nil
 }