The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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160 lines
6.2 KiB
160 lines
6.2 KiB
#region Copyright notice and license |
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// Copyright 2015, Google Inc. |
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// All rights reserved. |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Google Inc. nor the names of its |
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// contributors may be used to endorse or promote products derived from |
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// this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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#endregion |
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using System.Collections.Generic; |
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using Grpc.Core.Utils; |
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using Google.Protobuf.Reflection; |
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namespace Grpc.Reflection |
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{ |
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/// <summary>Registry of protobuf symbols</summary> |
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public class SymbolRegistry |
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{ |
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private readonly Dictionary<string, FileDescriptor> filesByName; |
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private readonly Dictionary<string, FileDescriptor> filesBySymbol; |
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private SymbolRegistry(Dictionary<string, FileDescriptor> filesByName, Dictionary<string, FileDescriptor> filesBySymbol) |
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{ |
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this.filesByName = new Dictionary<string, FileDescriptor>(filesByName); |
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this.filesBySymbol = new Dictionary<string, FileDescriptor>(filesBySymbol); |
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} |
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/// <summary> |
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/// Creates a symbol registry from the specified set of file descriptors. |
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/// </summary> |
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/// <param name="fileDescriptors">The set of files to include in the registry. Must not contain null values.</param> |
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/// <returns>A symbol registry for the given files.</returns> |
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public static SymbolRegistry FromFiles(IEnumerable<FileDescriptor> fileDescriptors) |
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{ |
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GrpcPreconditions.CheckNotNull(fileDescriptors); |
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var builder = new Builder(); |
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foreach (var file in fileDescriptors) |
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{ |
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builder.AddFile(file); |
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} |
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return builder.Build(); |
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} |
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/// <summary> |
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/// Gets file descriptor for given file name (including package path). Returns <c>null</c> if not found. |
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/// </summary> |
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public FileDescriptor FileByName(string filename) |
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{ |
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FileDescriptor file; |
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filesByName.TryGetValue(filename, out file); |
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return file; |
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} |
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/// <summary> |
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/// Gets file descriptor that contains definition of given symbol full name (including package path). Returns <c>null</c> if not found. |
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/// </summary> |
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public FileDescriptor FileContainingSymbol(string symbol) |
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{ |
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FileDescriptor file; |
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filesBySymbol.TryGetValue(symbol, out file); |
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return file; |
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} |
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/// <summary> |
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/// Builder class which isn't exposed, but acts as a convenient alternative to passing round two dictionaries in recursive calls. |
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/// </summary> |
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private class Builder |
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{ |
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private readonly Dictionary<string, FileDescriptor> filesByName; |
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private readonly Dictionary<string, FileDescriptor> filesBySymbol; |
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internal Builder() |
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{ |
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filesByName = new Dictionary<string, FileDescriptor>(); |
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filesBySymbol = new Dictionary<string, FileDescriptor>(); |
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} |
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internal void AddFile(FileDescriptor fileDescriptor) |
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{ |
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if (filesByName.ContainsKey(fileDescriptor.Name)) |
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{ |
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return; |
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} |
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filesByName.Add(fileDescriptor.Name, fileDescriptor); |
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foreach (var dependency in fileDescriptor.Dependencies) |
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{ |
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AddFile(dependency); |
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} |
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foreach (var enumeration in fileDescriptor.EnumTypes) |
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{ |
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AddEnum(enumeration); |
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} |
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foreach (var message in fileDescriptor.MessageTypes) |
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{ |
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AddMessage(message); |
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} |
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foreach (var service in fileDescriptor.Services) |
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{ |
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AddService(service); |
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} |
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} |
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private void AddEnum(EnumDescriptor enumDescriptor) |
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{ |
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filesBySymbol[enumDescriptor.FullName] = enumDescriptor.File; |
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} |
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private void AddMessage(MessageDescriptor messageDescriptor) |
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{ |
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foreach (var nestedEnum in messageDescriptor.EnumTypes) |
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{ |
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AddEnum(nestedEnum); |
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} |
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foreach (var nestedType in messageDescriptor.NestedTypes) |
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{ |
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AddMessage(nestedType); |
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} |
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filesBySymbol[messageDescriptor.FullName] = messageDescriptor.File; |
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} |
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private void AddService(ServiceDescriptor serviceDescriptor) |
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{ |
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foreach (var method in serviceDescriptor.Methods) |
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{ |
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filesBySymbol[method.FullName] = method.File; |
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} |
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filesBySymbol[serviceDescriptor.FullName] = serviceDescriptor.File; |
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} |
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internal SymbolRegistry Build() |
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{ |
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return new SymbolRegistry(filesByName, filesBySymbol); |
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} |
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} |
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} |
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}
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