1 #region Copyright notice and license 2 // Protocol Buffers - Google's data interchange format 3 // Copyright 2008 Google Inc. All rights reserved. 4 // https://developers.google.com/protocol-buffers/ 5 // 6 // Redistribution and use in source and binary forms, with or without 7 // modification, are permitted provided that the following conditions are 8 // met: 9 // 10 // * Redistributions of source code must retain the above copyright 11 // notice, this list of conditions and the following disclaimer. 12 // * Redistributions in binary form must reproduce the above 13 // copyright notice, this list of conditions and the following disclaimer 14 // in the documentation and/or other materials provided with the 15 // distribution. 16 // * Neither the name of Google Inc. nor the names of its 17 // contributors may be used to endorse or promote products derived from 18 // this software without specific prior written permission. 19 // 20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 #endregion 32 33 namespace Google.Protobuf.Reflection 34 { 35 /// <summary> 36 /// Describes a single method in a service. 37 /// </summary> 38 public sealed class MethodDescriptor : DescriptorBase 39 { 40 private readonly MethodDescriptorProto proto; 41 private readonly ServiceDescriptor service; 42 private MessageDescriptor inputType; 43 private MessageDescriptor outputType; 44 45 /// <value> 46 /// The service this method belongs to. 47 /// </value> 48 public ServiceDescriptor Service { get { return service; } } 49 50 /// <value> 51 /// The method's input type. 52 /// </value> 53 public MessageDescriptor InputType { get { return inputType; } } 54 55 /// <value> 56 /// The method's input type. 57 /// </value> 58 public MessageDescriptor OutputType { get { return outputType; } } 59 60 /// <value> 61 /// Indicates if client streams multiple requests. 62 /// </value> 63 public bool IsClientStreaming { get { return proto.ClientStreaming; } } 64 65 /// <value> 66 /// Indicates if server streams multiple responses. 67 /// </value> 68 public bool IsServerStreaming { get { return proto.ServerStreaming; } } 69 MethodDescriptor(MethodDescriptorProto proto, FileDescriptor file, ServiceDescriptor parent, int index)70 internal MethodDescriptor(MethodDescriptorProto proto, FileDescriptor file, 71 ServiceDescriptor parent, int index) 72 : base(file, parent.FullName + "." + proto.Name, index) 73 { 74 this.proto = proto; 75 service = parent; 76 file.DescriptorPool.AddSymbol(this); 77 } 78 79 internal MethodDescriptorProto Proto { get { return proto; } } 80 81 /// <summary> 82 /// The brief name of the descriptor's target. 83 /// </summary> 84 public override string Name { get { return proto.Name; } } 85 CrossLink()86 internal void CrossLink() 87 { 88 IDescriptor lookup = File.DescriptorPool.LookupSymbol(Proto.InputType, this); 89 if (!(lookup is MessageDescriptor)) 90 { 91 throw new DescriptorValidationException(this, "\"" + Proto.InputType + "\" is not a message type."); 92 } 93 inputType = (MessageDescriptor) lookup; 94 95 lookup = File.DescriptorPool.LookupSymbol(Proto.OutputType, this); 96 if (!(lookup is MessageDescriptor)) 97 { 98 throw new DescriptorValidationException(this, "\"" + Proto.OutputType + "\" is not a message type."); 99 } 100 outputType = (MessageDescriptor) lookup; 101 } 102 } 103 }