| /* |
| * 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 chain |
| |
| import ( |
| "context" |
| "github.com/apache/servicecomb-service-center/pkg/gopool" |
| "github.com/apache/servicecomb-service-center/pkg/log" |
| ) |
| |
| var pool = gopool.New(context.Background()) |
| |
| type CallbackFunc func(r Result) |
| |
| type Result struct { |
| OK bool |
| Err error |
| Args []interface{} |
| } |
| |
| func (r Result) String() string { |
| if r.OK { |
| return "OK" |
| } |
| return r.Err.Error() |
| } |
| |
| type Callback struct { |
| Func CallbackFunc |
| Async bool |
| } |
| |
| func (cb *Callback) Invoke(r Result) { |
| if cb.Async { |
| pool.Do(func(_ context.Context) { |
| cb.Func(r) |
| }) |
| return |
| } |
| defer log.Recover() |
| cb.Func(r) |
| } |
| |
| func (cb *Callback) Fail(err error, args ...interface{}) { |
| cb.Invoke(Result{ |
| OK: false, |
| Err: err, |
| Args: args, |
| }) |
| } |
| |
| func (cb *Callback) Success(args ...interface{}) { |
| cb.Invoke(Result{ |
| OK: true, |
| Args: args, |
| }) |
| } |