| /* |
| * 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 ( |
| "github.com/apache/dubbo-go/filter" |
| ) |
| |
| var ( |
| filters = make(map[string]func() filter.Filter) |
| rejectedExecutionHandler = make(map[string]func() filter.RejectedExecutionHandler) |
| ) |
| |
| // SetFilter sets the filter extension with @name |
| // For example: hystrix/metrics/token/tracing/limit/... |
| func SetFilter(name string, v func() filter.Filter) { |
| filters[name] = v |
| } |
| |
| // GetFilter finds the filter extension with @name |
| func GetFilter(name string) filter.Filter { |
| if filters[name] == nil { |
| panic("filter for " + name + " is not existing, make sure you have imported the package.") |
| } |
| return filters[name]() |
| } |
| |
| // SetRejectedExecutionHandler sets the RejectedExecutionHandler with @name |
| func SetRejectedExecutionHandler(name string, creator func() filter.RejectedExecutionHandler) { |
| rejectedExecutionHandler[name] = creator |
| } |
| |
| // GetRejectedExecutionHandler finds the RejectedExecutionHandler with @name |
| func GetRejectedExecutionHandler(name string) filter.RejectedExecutionHandler { |
| creator, ok := rejectedExecutionHandler[name] |
| if !ok { |
| panic("RejectedExecutionHandler for " + name + " is not existing, make sure you have import the package " + |
| "and you have register it by invoking extension.SetRejectedExecutionHandler.") |
| } |
| return creator() |
| } |