| /* |
| * 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 adapter |
| |
| import ( |
| "fmt" |
| ) |
| |
| import ( |
| "github.com/pkg/errors" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pixiu/pkg/model" |
| ) |
| |
| type ( |
| // AdapterPlugin plugin for adapter |
| AdapterPlugin interface { |
| // Kind returns the unique kind name to represent itself. |
| Kind() string |
| |
| // CreateAdapter return the Adapter callback |
| CreateAdapter(ad *model.Adapter) (Adapter, error) |
| } |
| |
| // Adapter adapter interface |
| Adapter interface { |
| // Start start adapter lifetime |
| Start() |
| // Stop stop adapter lifetime |
| Stop() |
| // Apply init |
| Apply() error |
| // Config get config for Adapter |
| Config() interface{} |
| } |
| ) |
| |
| var ( |
| adapterPlugins = map[string]AdapterPlugin{} |
| ) |
| |
| // RegisterAdapterPlugin registers adapter plugin |
| func RegisterAdapterPlugin(p AdapterPlugin) { |
| if p.Kind() == "" { |
| panic(fmt.Errorf("%T: empty kind", p)) |
| } |
| |
| existedPlugin, existed := adapterPlugins[p.Kind()] |
| if existed { |
| panic(fmt.Errorf("%T and %T got same kind: %s", p, existedPlugin, p.Kind())) |
| } |
| |
| adapterPlugins[p.Kind()] = p |
| } |
| |
| // GetAdapterPlugin get plugin by kind |
| func GetAdapterPlugin(kind string) (AdapterPlugin, error) { |
| existedAdapter, existed := adapterPlugins[kind] |
| if existed { |
| return existedAdapter, nil |
| } |
| return nil, errors.Errorf("plugin not found %s", kind) |
| } |