| /* |
| * 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 extension |
| |
| import ( |
| "sort" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go/registry" |
| ) |
| |
| var ( |
| customizers = make([]registry.ServiceInstanceCustomizer, 0, 8) |
| ) |
| |
| // AddCustomizers will put the customizer into slices and then sort them; |
| // this method will be invoked several time, so we sort them here. |
| func AddCustomizers(cus registry.ServiceInstanceCustomizer) { |
| customizers = append(customizers, cus) |
| sort.Stable(customizerSlice(customizers)) |
| } |
| |
| // GetCustomizers will return the sorted customizer |
| // the result won't be nil |
| func GetCustomizers() []registry.ServiceInstanceCustomizer { |
| return customizers |
| } |
| |
| type customizerSlice []registry.ServiceInstanceCustomizer |
| |
| // nolint |
| func (c customizerSlice) Len() int { |
| return len(c) |
| } |
| |
| // nolint |
| func (c customizerSlice) Swap(i, j int) { c[i], c[j] = c[j], c[i] } |
| |
| // nolint |
| func (c customizerSlice) Less(i, j int) bool { return c[i].GetPriority() < c[j].GetPriority() } |