| /* |
| * 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 protocol |
| |
| import ( |
| "context" |
| ) |
| |
| import ( |
| perrors "github.com/pkg/errors" |
| uatomic "go.uber.org/atomic" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go/common" |
| "github.com/apache/dubbo-go/common/logger" |
| ) |
| |
| var ( |
| // ErrClientClosed means client has clossed. |
| ErrClientClosed = perrors.New("remoting client has closed") |
| // ErrNoReply |
| ErrNoReply = perrors.New("request need @response") |
| // ErrDestroyedInvoker |
| ErrDestroyedInvoker = perrors.New("request Destroyed invoker") |
| ) |
| |
| // Invoker the service invocation interface for the consumer |
| //go:generate mockgen -source invoker.go -destination mock/mock_invoker.go -self_package github.com/apache/dubbo-go/protocol/mock --package mock Invoker |
| // Extension - Invoker |
| type Invoker interface { |
| common.Node |
| // Invoke the invocation and return result. |
| Invoke(context.Context, Invocation) Result |
| } |
| |
| ///////////////////////////// |
| // base invoker |
| ///////////////////////////// |
| |
| // BaseInvoker provides default invoker implement |
| type BaseInvoker struct { |
| url *common.URL |
| available uatomic.Bool |
| destroyed uatomic.Bool |
| } |
| |
| // NewBaseInvoker creates a new BaseInvoker |
| func NewBaseInvoker(url *common.URL) *BaseInvoker { |
| ivk := &BaseInvoker{ |
| url: url, |
| } |
| ivk.available.Store(true) |
| ivk.destroyed.Store(false) |
| |
| return ivk |
| } |
| |
| // GetURL gets base invoker URL |
| func (bi *BaseInvoker) GetURL() *common.URL { |
| return bi.url |
| } |
| |
| // IsAvailable gets available flag |
| func (bi *BaseInvoker) IsAvailable() bool { |
| return bi.available.Load() |
| } |
| |
| // IsDestroyed gets destroyed flag |
| func (bi *BaseInvoker) IsDestroyed() bool { |
| return bi.destroyed.Load() |
| } |
| |
| // Invoke provides default invoker implement |
| func (bi *BaseInvoker) Invoke(context context.Context, invocation Invocation) Result { |
| return &RPCResult{} |
| } |
| |
| // Destroy changes available and destroyed flag |
| func (bi *BaseInvoker) Destroy() { |
| logger.Infof("Destroy invoker: %s", bi.GetURL()) |
| bi.destroyed.Store(true) |
| bi.available.Store(false) |
| } |