| // Licensed to 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. Apache Software Foundation (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 core |
| |
| import ( |
| "context" |
| |
| "github.com/google/uuid" |
| |
| "github.com/hashicorp/go-multierror" |
| |
| "github.com/apache/skywalking-rover/pkg/core/backend" |
| "github.com/apache/skywalking-rover/pkg/module" |
| ) |
| |
| const ModuleName = "core" |
| |
| type Module struct { |
| config *Config |
| |
| instanceID string |
| backendClient *backend.Client |
| } |
| |
| func NewModule() *Module { |
| return &Module{config: &Config{}} |
| } |
| |
| func (m *Module) Name() string { |
| return ModuleName |
| } |
| |
| func (m *Module) RequiredModules() []string { |
| return nil |
| } |
| |
| func (m *Module) Config() module.ConfigInterface { |
| return m.config |
| } |
| |
| func (m *Module) Start(ctx context.Context, mgr *module.Manager) error { |
| // generate instance id |
| m.instanceID = uuid.New().String() |
| // backend client |
| if m.config.BackendConfig != nil { |
| m.backendClient = backend.NewClient(m.config.BackendConfig) |
| if err := m.backendClient.Start(ctx); err != nil { |
| return err |
| } |
| } |
| return nil |
| } |
| |
| func (m *Module) NotifyStartSuccess() { |
| } |
| |
| func (m *Module) Shutdown(ctx context.Context, mgr *module.Manager) error { |
| var result *multierror.Error |
| if m.backendClient != nil { |
| result = multierror.Append(result, m.backendClient.Stop()) |
| } |
| return result.ErrorOrNil() |
| } |
| |
| func (m *Module) BackendOperator() backend.Operator { |
| if m.backendClient == nil { |
| return nil |
| } |
| return m.backendClient |
| } |
| |
| func (m *Module) InstanceID() string { |
| return m.instanceID |
| } |