| /* |
| * 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 grpcproxy |
| |
| import ( |
| "fmt" |
| ) |
| |
| import ( |
| "github.com/jhump/protoreflect/desc" |
| ) |
| |
| func DescriptorSourceFromFileDescriptors(files ...*desc.FileDescriptor) (*fileSource, error) { |
| fds := map[string]*desc.FileDescriptor{} |
| for _, fd := range files { |
| if err := addFile(fd, fds); err != nil { |
| return nil, err |
| } |
| } |
| return &fileSource{files: fds}, nil |
| } |
| |
| func addFile(fd *desc.FileDescriptor, fds map[string]*desc.FileDescriptor) error { |
| name := fd.GetName() |
| if existing, ok := fds[name]; ok { |
| // already added this file |
| if existing != fd { |
| // doh! duplicate files provided |
| return fmt.Errorf("given files include multiple copies of %q", name) |
| } |
| return nil |
| } |
| fds[name] = fd |
| for _, dep := range fd.GetDependencies() { |
| if err := addFile(dep, fds); err != nil { |
| return err |
| } |
| } |
| return nil |
| } |
| |
| func (fs *fileSource) GetAllFiles() ([]*desc.FileDescriptor, error) { |
| files := make([]*desc.FileDescriptor, len(fs.files)) |
| i := 0 |
| for _, fd := range fs.files { |
| files[i] = fd |
| i++ |
| } |
| return files, nil |
| } |