| /* |
| * 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 datasource |
| |
| import ( |
| "context" |
| ) |
| |
| import ( |
| "github.com/pkg/errors" |
| ) |
| |
| import ( |
| system_proto "github.com/apache/dubbo-kubernetes/api/system/v1alpha1" |
| "github.com/apache/dubbo-kubernetes/pkg/core/resources/apis/system" |
| "github.com/apache/dubbo-kubernetes/pkg/core/resources/model" |
| core_store "github.com/apache/dubbo-kubernetes/pkg/core/resources/store" |
| ) |
| |
| type staticLoader struct { |
| secrets map[model.ResourceKey]*system.SecretResource |
| } |
| |
| var _ Loader = &staticLoader{} |
| |
| // NewStaticLoader returns a loader that supports predefined list of secrets |
| // This implementation is more performant if than dynamic if we already have the list of all secrets |
| // because we can avoid I/O operations. |
| func NewStaticLoader(secrets []*system.SecretResource) Loader { |
| loader := staticLoader{ |
| secrets: map[model.ResourceKey]*system.SecretResource{}, |
| } |
| |
| for _, secret := range secrets { |
| loader.secrets[model.MetaToResourceKey(secret.GetMeta())] = secret |
| } |
| |
| return &loader |
| } |
| |
| func (s *staticLoader) Load(_ context.Context, mesh string, source *system_proto.DataSource) ([]byte, error) { |
| var data []byte |
| var err error |
| switch source.GetType().(type) { |
| case *system_proto.DataSource_Secret: |
| data, err = s.loadSecret(mesh, source.GetSecret()) |
| case *system_proto.DataSource_Inline: |
| data, err = source.GetInline().GetValue(), nil |
| case *system_proto.DataSource_InlineString: |
| data, err = []byte(source.GetInlineString()), nil |
| default: |
| return nil, errors.New("unsupported type of the DataSource") |
| } |
| if err != nil { |
| return nil, errors.Wrap(err, "could not load data") |
| } |
| return data, nil |
| } |
| |
| func (s *staticLoader) loadSecret(mesh string, name string) ([]byte, error) { |
| key := model.ResourceKey{ |
| Mesh: mesh, |
| Name: name, |
| } |
| |
| secret := s.secrets[key] |
| if secret == nil { |
| return nil, core_store.ErrorResourceNotFound(system.SecretType, name, mesh) |
| } |
| return secret.Spec.GetData().GetValue(), nil |
| } |