| /* |
| * 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 pool |
| |
| import ( |
| "errors" |
| "sync" |
| ) |
| |
| import ( |
| "github.com/dubbogo/dubbo-go-pixiu-filter/pkg/api/config" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pkg/client" |
| "github.com/apache/dubbo-go-pixiu/pkg/client/dubbo" |
| "github.com/apache/dubbo-go-pixiu/pkg/client/http" |
| ) |
| |
| // ClientPool a pool of client. |
| type ClientPool struct { |
| poolMap map[config.RequestType]*sync.Pool |
| } |
| |
| var ( |
| clientPool *ClientPool |
| once = sync.Once{} |
| ) |
| |
| func newClientPool() *ClientPool { |
| clientPool := &ClientPool{ |
| poolMap: make(map[config.RequestType]*sync.Pool, 4), |
| } |
| // init default support request type |
| clientPool.poolMap[config.DubboRequest] = &sync.Pool{ |
| New: func() interface{} { |
| return dubbo.NewDubboClient() |
| }, |
| } |
| clientPool.poolMap[config.HTTPRequest] = &sync.Pool{ |
| New: func() interface{} { |
| return http.NewHTTPClient() |
| }, |
| } |
| return clientPool |
| } |
| |
| // SingletonPool singleton pool |
| func SingletonPool() *ClientPool { |
| if clientPool == nil { |
| once.Do(func() { |
| clientPool = newClientPool() |
| }) |
| } |
| |
| return clientPool |
| } |
| |
| // GetClient a factory method to get a client according to apiType . |
| func (pool *ClientPool) GetClient(t config.RequestType) (client.Client, error) { |
| if pool.poolMap[t] != nil { |
| return pool.poolMap[t].Get().(client.Client), nil |
| } |
| return nil, errors.New("protocol not supported yet") |
| } |
| |
| // Put put client to pool. |
| func (pool *ClientPool) Put(t config.RequestType, c client.Client) error { |
| if pool.poolMap[t] != nil { |
| pool.poolMap[t].Put(c) |
| return nil |
| } |
| |
| return errors.New("protocol not supported yet") |
| } |