| /* |
| * 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 context |
| |
| import ( |
| "context" |
| "crypto/sha1" |
| "fmt" |
| "github.com/apache/servicecomb-service-center/pkg/util" |
| mgr "github.com/apache/servicecomb-service-center/server/plugin" |
| "github.com/apache/servicecomb-service-center/server/plugin/pkg/uuid" |
| "github.com/apache/servicecomb-service-center/server/plugin/pkg/uuid/buildin" |
| ) |
| |
| func init() { |
| mgr.RegisterPlugin(mgr.Plugin{mgr.UUID, "context", New}) |
| } |
| |
| func New() mgr.PluginInstance { |
| return &ContextUUID{} |
| } |
| |
| type ContextUUID struct { |
| buildin.BuildinUUID |
| } |
| |
| func (cu *ContextUUID) fromContext(ctx context.Context) string { |
| key, ok := ctx.Value(uuid.ContextKey).(string) |
| if !ok { |
| return "" |
| } |
| return key |
| } |
| |
| func (cu *ContextUUID) GetServiceId(ctx context.Context) string { |
| content := cu.fromContext(ctx) |
| if len(content) == 0 { |
| return cu.BuildinUUID.GetServiceId(ctx) |
| } |
| return fmt.Sprintf("%x", sha1.Sum(util.StringToBytesWithNoCopy(content))) |
| } |