| /* |
| * 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 notify |
| |
| import "github.com/apache/servicecomb-service-center/pkg/log" |
| |
| const ( |
| NOTIFY_SERVER_CHECKER_NAME = "__HealthChecker__" |
| NOTIFY_SERVER_CHECK_SUBJECT = "__NotifyServerHealthCheck__" |
| ) |
| |
| //Notifier 健康检查 |
| type NotifyServiceHealthChecker struct { |
| Subscriber |
| } |
| |
| type NotifyServiceHealthCheckJob struct { |
| Event |
| ErrorSubscriber Subscriber |
| } |
| |
| func (s *NotifyServiceHealthChecker) OnMessage(job Event) { |
| j := job.(*NotifyServiceHealthCheckJob) |
| err := j.ErrorSubscriber.Err() |
| |
| if j.ErrorSubscriber.Type() == NOTIFTY { |
| log.Errorf(nil, "remove %s watcher failed, here cause a dead lock, subject: %s, group: %s", |
| j.ErrorSubscriber.Type(), j.ErrorSubscriber.Subject(), j.ErrorSubscriber.Group()) |
| return |
| } |
| |
| log.Debugf("notification service remove %s watcher, error: %v, subject: %s, group: %s", |
| j.ErrorSubscriber.Type(), err, j.ErrorSubscriber.Subject(), j.ErrorSubscriber.Group()) |
| s.Service().RemoveSubscriber(j.ErrorSubscriber) |
| } |
| |
| func NewNotifyServiceHealthChecker() *NotifyServiceHealthChecker { |
| return &NotifyServiceHealthChecker{ |
| Subscriber: NewSubscriber(NOTIFTY, NOTIFY_SERVER_CHECK_SUBJECT, NOTIFY_SERVER_CHECKER_NAME), |
| } |
| } |
| |
| func NewNotifyServiceHealthCheckJob(s Subscriber) *NotifyServiceHealthCheckJob { |
| return &NotifyServiceHealthCheckJob{ |
| Event: NewEvent(NOTIFTY, NOTIFY_SERVER_CHECK_SUBJECT, NOTIFY_SERVER_CHECKER_NAME), |
| ErrorSubscriber: s, |
| } |
| } |