blob: 9e9ec2d5d4bcb8d1af90fff73db1c6708427f7f7 [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package registry
import (
"reflect"
)
import (
"github.com/apache/dubbo-go/common/observer"
)
// The Service Discovery Changed Event Listener
type ServiceInstancesChangedListener struct {
ServiceName string
ChangedNotify observer.ChangedNotify
}
// OnEvent on ServiceInstancesChangedEvent the service instances change event
func (lstn *ServiceInstancesChangedListener) OnEvent(e observer.Event) error {
lstn.ChangedNotify.Notify(e)
return nil
}
// Accept return true if the name is the same
func (lstn *ServiceInstancesChangedListener) Accept(e observer.Event) bool {
if ce, ok := e.(*ServiceInstancesChangedEvent); ok {
return ce.ServiceName == lstn.ServiceName
}
return false
}
// GetPriority returns -1, it will be the first invoked listener
func (lstn *ServiceInstancesChangedListener) GetPriority() int {
return -1
}
// GetEventType returns ServiceInstancesChangedEvent
func (lstn *ServiceInstancesChangedListener) GetEventType() reflect.Type {
return reflect.TypeOf(&ServiceInstancesChangedEvent{})
}