1 | #region Copyright notice and license
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2 |
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3 | // Protocol Buffers - Google's data interchange format
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4 | // Copyright 2008 Google Inc. All rights reserved.
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5 | // http://github.com/jskeet/dotnet-protobufs/
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6 | // Original C++/Java/Python code:
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7 | // http://code.google.com/p/protobuf/
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8 | //
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9 | // Redistribution and use in source and binary forms, with or without
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10 | // modification, are permitted provided that the following conditions are
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11 | // met:
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12 | //
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13 | // * Redistributions of source code must retain the above copyright
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14 | // notice, this list of conditions and the following disclaimer.
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15 | // * Redistributions in binary form must reproduce the above
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16 | // copyright notice, this list of conditions and the following disclaimer
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17 | // in the documentation and/or other materials provided with the
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18 | // distribution.
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19 | // * Neither the name of Google Inc. nor the names of its
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20 | // contributors may be used to endorse or promote products derived from
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21 | // this software without specific prior written permission.
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22 | //
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23 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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24 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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25 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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26 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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27 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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28 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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29 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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30 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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31 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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32 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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33 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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34 |
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35 | #endregion
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36 |
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37 | using System;
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38 | using Google.ProtocolBuffers.DescriptorProtos;
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39 | using Google.ProtocolBuffers.Descriptors;
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40 |
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41 | namespace Google.ProtocolBuffers.ProtoGen
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42 | {
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43 | internal class ServiceGenerator : SourceGeneratorBase<ServiceDescriptor>, ISourceGenerator
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44 | {
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45 | private readonly CSharpServiceType svcType;
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46 | private ISourceGenerator _generator;
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47 |
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48 | internal ServiceGenerator(ServiceDescriptor descriptor)
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49 | : base(descriptor)
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50 | {
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51 | svcType = descriptor.File.CSharpOptions.ServiceGeneratorType;
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52 | switch (svcType)
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53 | {
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54 | case CSharpServiceType.NONE:
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55 | _generator = new NoServicesGenerator(descriptor);
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56 | break;
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57 | case CSharpServiceType.GENERIC:
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58 | _generator = new GenericServiceGenerator(descriptor);
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59 | break;
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60 | case CSharpServiceType.INTERFACE:
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61 | _generator = new ServiceInterfaceGenerator(descriptor);
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62 | break;
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63 | case CSharpServiceType.IRPCDISPATCH:
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64 | _generator = new RpcServiceGenerator(descriptor);
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65 | break;
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66 | default:
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67 | throw new ApplicationException("Unknown ServiceGeneratorType = " + svcType.ToString());
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68 | }
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69 | }
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70 |
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71 | public void Generate(TextGenerator writer)
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72 | {
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73 | _generator.Generate(writer);
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74 | }
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75 |
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76 | private class NoServicesGenerator : SourceGeneratorBase<ServiceDescriptor>, ISourceGenerator
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77 | {
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78 | public NoServicesGenerator(ServiceDescriptor descriptor)
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79 | : base(descriptor)
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80 | {
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81 | }
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82 |
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83 | public virtual void Generate(TextGenerator writer)
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84 | {
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85 | writer.WriteLine("/*");
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86 | writer.WriteLine("* Service generation is now disabled by default, use the following option to enable:");
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87 | writer.WriteLine("* option (google.protobuf.csharp_file_options).service_generator_type = GENERIC;");
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88 | writer.WriteLine("*/");
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89 | }
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90 | }
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91 |
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92 | private class ServiceInterfaceGenerator : SourceGeneratorBase<ServiceDescriptor>, ISourceGenerator
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93 | {
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94 | public ServiceInterfaceGenerator(ServiceDescriptor descriptor)
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95 | : base(descriptor)
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96 | {
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97 | }
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98 |
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99 | public virtual void Generate(TextGenerator writer)
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100 | {
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101 | CSharpServiceOptions options = Descriptor.Options.GetExtension(CSharpOptions.CsharpServiceOptions);
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102 | if (options != null && options.HasInterfaceId)
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103 | {
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104 | writer.WriteLine("[global::System.Runtime.InteropServices.GuidAttribute(\"{0}\")]",
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105 | new Guid(options.InterfaceId));
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106 | }
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107 | writer.WriteLine("[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]");
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108 | writer.WriteLine("[global::System.CodeDom.Compiler.GeneratedCodeAttribute(\"{0}\", \"{1}\")]",
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109 | GetType().Assembly.GetName().Name, GetType().Assembly.GetName().Version);
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110 | writer.WriteLine("{0} partial interface I{1} {{", ClassAccessLevel, Descriptor.Name);
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111 | writer.Indent();
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112 |
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113 | foreach (MethodDescriptor method in Descriptor.Methods)
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114 | {
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115 | CSharpMethodOptions mth = method.Options.GetExtension(CSharpOptions.CsharpMethodOptions);
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116 | if (mth.HasDispatchId)
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117 | {
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118 | writer.WriteLine("[global::System.Runtime.InteropServices.DispId({0})]", mth.DispatchId);
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119 | }
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120 | writer.WriteLine("{0} {1}({2} {3});", GetClassName(method.OutputType),
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121 | NameHelpers.UnderscoresToPascalCase(method.Name), GetClassName(method.InputType),
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122 | NameHelpers.UnderscoresToCamelCase(method.InputType.Name));
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123 | }
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124 |
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125 | writer.Outdent();
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126 | writer.WriteLine("}");
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127 | }
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128 | }
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129 |
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130 | private class RpcServiceGenerator : ServiceInterfaceGenerator
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131 | {
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132 | public RpcServiceGenerator(ServiceDescriptor descriptor)
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133 | : base(descriptor)
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134 | {
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135 | }
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136 |
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137 | public override void Generate(TextGenerator writer)
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138 | {
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139 | base.Generate(writer);
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140 |
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141 | writer.WriteLine();
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142 |
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143 | // CLIENT Proxy
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144 | {
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145 | if (Descriptor.File.CSharpOptions.ClsCompliance)
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146 | {
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147 | writer.WriteLine("[global::System.CLSCompliant(false)]");
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148 | }
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149 | writer.WriteLine("[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]");
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150 | writer.WriteLine("[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]");
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151 | writer.WriteLine("[global::System.CodeDom.Compiler.GeneratedCodeAttribute(\"{0}\", \"{1}\")]",
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152 | GetType().Assembly.GetName().Name, GetType().Assembly.GetName().Version);
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153 | writer.WriteLine("{0} partial class {1} : I{1}, pb::IRpcDispatch, global::System.IDisposable {{",
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154 | ClassAccessLevel, Descriptor.Name);
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155 | writer.Indent();
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156 | writer.WriteLine("private readonly bool dispose;");
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157 | writer.WriteLine("private readonly pb::IRpcDispatch dispatch;");
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158 |
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159 | writer.WriteLine("public {0}(pb::IRpcDispatch dispatch) : this(dispatch, true) {{", Descriptor.Name);
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160 | writer.WriteLine("}");
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161 | writer.WriteLine("public {0}(pb::IRpcDispatch dispatch, bool dispose) {{", Descriptor.Name);
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162 | writer.WriteLine(" pb::ThrowHelper.ThrowIfNull(this.dispatch = dispatch, \"dispatch\");");
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163 | writer.WriteLine(" this.dispose = dispose && dispatch is global::System.IDisposable;");
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164 | writer.WriteLine("}");
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165 | writer.WriteLine();
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166 |
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167 | writer.WriteLine("public void Dispose() {");
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168 | writer.WriteLine(" if (dispose) ((global::System.IDisposable)dispatch).Dispose();");
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169 | writer.WriteLine("}");
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170 | writer.WriteLine();
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171 | writer.WriteLine(
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172 | "TMessage pb::IRpcDispatch.CallMethod<TMessage, TBuilder>(string method, pb::IMessageLite request, pb::IBuilderLite<TMessage, TBuilder> response) {");
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173 | writer.WriteLine(" return dispatch.CallMethod(method, request, response);");
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174 | writer.WriteLine("}");
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175 | writer.WriteLine();
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176 |
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177 | foreach (MethodDescriptor method in Descriptor.Methods)
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178 | {
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179 | writer.WriteLine("public {0} {1}({2} {3}) {{", GetClassName(method.OutputType),
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180 | NameHelpers.UnderscoresToPascalCase(method.Name),
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181 | GetClassName(method.InputType),
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182 | NameHelpers.UnderscoresToCamelCase(method.InputType.Name));
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183 | writer.WriteLine(" return dispatch.CallMethod(\"{0}\", {1}, {2}.CreateBuilder());",
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184 | method.Name,
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185 | NameHelpers.UnderscoresToCamelCase(method.InputType.Name),
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186 | GetClassName(method.OutputType)
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187 | );
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188 | writer.WriteLine("}");
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189 | writer.WriteLine();
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190 | }
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191 | }
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192 | // SERVER - DISPATCH
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193 | {
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194 | if (Descriptor.File.CSharpOptions.ClsCompliance)
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195 | {
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196 | writer.WriteLine("[global::System.CLSCompliant(false)]");
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197 | }
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198 | writer.WriteLine("[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]");
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199 | writer.WriteLine("[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]");
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200 | writer.WriteLine("[global::System.CodeDom.Compiler.GeneratedCodeAttribute(\"{0}\", \"{1}\")]",
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201 | GetType().Assembly.GetName().Name, GetType().Assembly.GetName().Version);
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202 | writer.WriteLine("public partial class Dispatch : pb::IRpcDispatch, global::System.IDisposable {");
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203 | writer.Indent();
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204 | writer.WriteLine("private readonly bool dispose;");
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205 | writer.WriteLine("private readonly I{0} implementation;", Descriptor.Name);
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206 |
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207 | writer.WriteLine("public Dispatch(I{0} implementation) : this(implementation, true) {{",
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208 | Descriptor.Name);
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209 | writer.WriteLine("}");
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210 | writer.WriteLine("public Dispatch(I{0} implementation, bool dispose) {{", Descriptor.Name);
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211 | writer.WriteLine(" pb::ThrowHelper.ThrowIfNull(this.implementation = implementation, \"implementation\");");
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212 | writer.WriteLine(" this.dispose = dispose && implementation is global::System.IDisposable;");
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213 | writer.WriteLine("}");
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214 | writer.WriteLine();
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215 |
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216 | writer.WriteLine("public void Dispose() {");
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217 | writer.WriteLine(" if (dispose) ((global::System.IDisposable)implementation).Dispose();");
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218 | writer.WriteLine("}");
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219 | writer.WriteLine();
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220 |
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221 | writer.WriteLine(
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222 | "public TMessage CallMethod<TMessage, TBuilder>(string methodName, pb::IMessageLite request, pb::IBuilderLite<TMessage, TBuilder> response)");
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223 | writer.WriteLine(" where TMessage : pb::IMessageLite<TMessage, TBuilder>");
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224 | writer.WriteLine(" where TBuilder : pb::IBuilderLite<TMessage, TBuilder> {");
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225 | writer.Indent();
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226 | writer.WriteLine("switch(methodName) {");
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227 | writer.Indent();
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228 |
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229 | foreach (MethodDescriptor method in Descriptor.Methods)
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230 | {
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231 | writer.WriteLine(
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232 | "case \"{0}\": return response.MergeFrom(implementation.{1}(({2})request)).Build();",
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233 | method.Name, NameHelpers.UnderscoresToPascalCase(method.Name),
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234 | GetClassName(method.InputType));
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235 | }
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236 | writer.WriteLine("default: throw pb::ThrowHelper.CreateMissingMethod(typeof(I{0}), methodName);", Descriptor.Name);
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237 | writer.Outdent();
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238 | writer.WriteLine("}"); //end switch
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239 | writer.Outdent();
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240 | writer.WriteLine("}"); //end invoke
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241 | writer.Outdent();
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242 | writer.WriteLine("}"); //end server
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243 | }
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244 | // SERVER - STUB
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245 | {
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246 | if (Descriptor.File.CSharpOptions.ClsCompliance)
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247 | {
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248 | writer.WriteLine("[global::System.CLSCompliant(false)]");
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249 | }
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250 | writer.WriteLine("[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]");
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251 | writer.WriteLine("[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]");
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252 | writer.WriteLine("[global::System.CodeDom.Compiler.GeneratedCodeAttribute(\"{0}\", \"{1}\")]",
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253 | GetType().Assembly.GetName().Name, GetType().Assembly.GetName().Version);
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254 | writer.WriteLine(
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255 | "public partial class ServerStub : pb::IRpcServerStub, global::System.IDisposable {");
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256 | writer.Indent();
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257 | writer.WriteLine("private readonly bool dispose;");
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258 | writer.WriteLine("private readonly pb::IRpcDispatch implementation;", Descriptor.Name);
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259 |
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260 | writer.WriteLine("public ServerStub(I{0} implementation) : this(implementation, true) {{",
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261 | Descriptor.Name);
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262 | writer.WriteLine("}");
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263 | writer.WriteLine(
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264 | "public ServerStub(I{0} implementation, bool dispose) : this(new Dispatch(implementation, dispose), dispose) {{",
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265 | Descriptor.Name);
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266 | writer.WriteLine("}");
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267 |
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268 | writer.WriteLine("public ServerStub(pb::IRpcDispatch implementation) : this(implementation, true) {");
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269 | writer.WriteLine("}");
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270 | writer.WriteLine("public ServerStub(pb::IRpcDispatch implementation, bool dispose) {");
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271 | writer.WriteLine(" pb::ThrowHelper.ThrowIfNull(this.implementation = implementation, \"implementation\");");
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272 | writer.WriteLine(" this.dispose = dispose && implementation is global::System.IDisposable;");
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273 | writer.WriteLine("}");
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274 | writer.WriteLine();
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275 |
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276 | writer.WriteLine("public void Dispose() {");
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277 | writer.WriteLine(" if (dispose) ((global::System.IDisposable)implementation).Dispose();");
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278 | writer.WriteLine("}");
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279 | writer.WriteLine();
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280 |
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281 | writer.WriteLine(
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282 | "public pb::IMessageLite CallMethod(string methodName, pb::ICodedInputStream input, pb::ExtensionRegistry registry) {{",
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283 | Descriptor.Name);
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284 | writer.Indent();
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285 | writer.WriteLine("switch(methodName) {");
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286 | writer.Indent();
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287 |
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288 | foreach (MethodDescriptor method in Descriptor.Methods)
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289 | {
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290 | writer.WriteLine(
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291 | "case \"{0}\": return implementation.CallMethod(methodName, {1}.ParseFrom(input, registry), {2}.CreateBuilder());",
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292 | method.Name, GetClassName(method.InputType), GetClassName(method.OutputType));
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293 | }
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294 | writer.WriteLine("default: throw pb::ThrowHelper.CreateMissingMethod(typeof(I{0}), methodName);", Descriptor.Name);
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295 | writer.Outdent();
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296 | writer.WriteLine("}"); //end switch
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297 | writer.Outdent();
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298 | writer.WriteLine("}"); //end invoke
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299 | writer.Outdent();
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300 | writer.WriteLine("}"); //end server
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301 | }
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302 |
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303 | writer.Outdent();
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304 | writer.WriteLine("}");
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305 | }
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306 | }
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307 | }
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308 | } |
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