diff options
Diffstat (limited to 'src/compiler/csharp_generator.cc')
-rw-r--r-- | src/compiler/csharp_generator.cc | 157 |
1 files changed, 105 insertions, 52 deletions
diff --git a/src/compiler/csharp_generator.cc b/src/compiler/csharp_generator.cc index 5a8746df8d..69e2738d53 100644 --- a/src/compiler/csharp_generator.cc +++ b/src/compiler/csharp_generator.cc @@ -81,6 +81,10 @@ std::string GetServerInterfaceName(const ServiceDescriptor* service) { return "I" + service->name(); } +std::string GetServerClassName(const ServiceDescriptor* service) { + return service->name() + "Base"; +} + std::string GetCSharpMethodType(MethodType method_type) { switch (method_type) { case METHODTYPE_NO_STREAMING: @@ -108,10 +112,14 @@ std::string GetMethodFieldName(const MethodDescriptor *method) { return "__Method_" + method->name(); } -std::string GetMethodRequestParamMaybe(const MethodDescriptor *method) { +std::string GetMethodRequestParamMaybe(const MethodDescriptor *method, + bool invocation_param=false) { if (method->client_streaming()) { return ""; } + if (invocation_param) { + return "request, "; + } return GetClassName(method->input_type()) + " request, "; } @@ -242,6 +250,8 @@ void GenerateServiceDescriptorProperty(Printer* out, const ServiceDescriptor *se void GenerateClientInterface(Printer* out, const ServiceDescriptor *service) { out->Print("// client interface\n"); + out->Print("[System.Obsolete(\"Client side interfaced will be removed " + "in the next release. Use client class directly.\")]\n"); out->Print("public interface $name$\n", "name", GetClientInterfaceName(service)); out->Print("{\n"); @@ -290,6 +300,8 @@ void GenerateClientInterface(Printer* out, const ServiceDescriptor *service) { void GenerateServerInterface(Printer* out, const ServiceDescriptor *service) { out->Print("// server-side interface\n"); + out->Print("[System.Obsolete(\"Service implementations should inherit" + " from the generated abstract base class instead.\")]\n"); out->Print("public interface $name$\n", "name", GetServerInterfaceName(service)); out->Print("{\n"); @@ -309,21 +321,64 @@ void GenerateServerInterface(Printer* out, const ServiceDescriptor *service) { out->Print("\n"); } +void GenerateServerClass(Printer* out, const ServiceDescriptor *service) { + out->Print("// server-side abstract class\n"); + out->Print("public abstract class $name$\n", "name", + GetServerClassName(service)); + out->Print("{\n"); + out->Indent(); + for (int i = 0; i < service->method_count(); i++) { + const MethodDescriptor *method = service->method(i); + out->Print( + "public virtual $returntype$ $methodname$($request$$response_stream_maybe$, " + "ServerCallContext context)\n", + "methodname", method->name(), "returntype", + GetMethodReturnTypeServer(method), "request", + GetMethodRequestParamServer(method), "response_stream_maybe", + GetMethodResponseStreamMaybe(method)); + out->Print("{\n"); + out->Indent(); + out->Print("throw new RpcException(" + "new Status(StatusCode.Unimplemented, \"\"));\n"); + out->Outdent(); + out->Print("}\n\n"); + } + out->Outdent(); + out->Print("}\n"); + out->Print("\n"); +} + void GenerateClientStub(Printer* out, const ServiceDescriptor *service) { out->Print("// client stub\n"); out->Print( - "public class $name$ : ClientBase, $interface$\n", - "name", GetClientClassName(service), "interface", - GetClientInterfaceName(service)); + "public class $name$ : ClientBase<$name$>, $interface$\n", + "name", GetClientClassName(service), + "interface", GetClientInterfaceName(service)); out->Print("{\n"); out->Indent(); // constructors - out->Print( - "public $name$(Channel channel) : base(channel)\n", - "name", GetClientClassName(service)); + out->Print("public $name$(Channel channel) : base(channel)\n", + "name", GetClientClassName(service)); + out->Print("{\n"); + out->Print("}\n"); + out->Print("public $name$(CallInvoker callInvoker) : base(callInvoker)\n", + "name", GetClientClassName(service)); out->Print("{\n"); out->Print("}\n"); + out->Print("///<summary>Protected parameterless constructor to allow creation" + " of test doubles.</summary>\n"); + out->Print("protected $name$() : base()\n", + "name", GetClientClassName(service)); + out->Print("{\n"); + out->Print("}\n"); + out->Print("///<summary>Protected constructor to allow creation of configured" + " clients.</summary>\n"); + out->Print("protected $name$(ClientBaseConfiguration configuration)" + " : base(configuration)\n", + "name", GetClientClassName(service)); + out->Print("{\n"); + out->Print("}\n\n"); for (int i = 0; i < service->method_count(); i++) { const MethodDescriptor *method = service->method(i); @@ -331,30 +386,26 @@ void GenerateClientStub(Printer* out, const ServiceDescriptor *service) { if (method_type == METHODTYPE_NO_STREAMING) { // unary calls have an extra synchronous stub method - out->Print( - "public $response$ $methodname$($request$ request, Metadata headers = null, DateTime? deadline = null, CancellationToken cancellationToken = default(CancellationToken))\n", + out->Print("public virtual $response$ $methodname$($request$ request, Metadata headers = null, DateTime? deadline = null, CancellationToken cancellationToken = default(CancellationToken))\n", "methodname", method->name(), "request", GetClassName(method->input_type()), "response", GetClassName(method->output_type())); out->Print("{\n"); out->Indent(); - out->Print("var call = CreateCall($methodfield$, new CallOptions(headers, deadline, cancellationToken));\n", - "methodfield", GetMethodFieldName(method)); - out->Print("return Calls.BlockingUnaryCall(call, request);\n"); + out->Print("return $methodname$(request, new CallOptions(headers, deadline, cancellationToken));\n", + "methodname", method->name()); out->Outdent(); out->Print("}\n"); // overload taking CallOptions as a param - out->Print( - "public $response$ $methodname$($request$ request, CallOptions options)\n", - "methodname", method->name(), "request", - GetClassName(method->input_type()), "response", - GetClassName(method->output_type())); + out->Print("public virtual $response$ $methodname$($request$ request, CallOptions options)\n", + "methodname", method->name(), "request", + GetClassName(method->input_type()), "response", + GetClassName(method->output_type())); out->Print("{\n"); out->Indent(); - out->Print("var call = CreateCall($methodfield$, options);\n", + out->Print("return CallInvoker.BlockingUnaryCall($methodfield$, null, options, request);\n", "methodfield", GetMethodFieldName(method)); - out->Print("return Calls.BlockingUnaryCall(call, request);\n"); out->Outdent(); out->Print("}\n"); } @@ -364,57 +415,44 @@ void GenerateClientStub(Printer* out, const ServiceDescriptor *service) { method_name += "Async"; // prevent name clash with synchronous method. } out->Print( - "public $returntype$ $methodname$($request_maybe$Metadata headers = null, DateTime? deadline = null, CancellationToken cancellationToken = default(CancellationToken))\n", - "methodname", method_name, "request_maybe", - GetMethodRequestParamMaybe(method), "returntype", - GetMethodReturnTypeClient(method)); + "public virtual $returntype$ $methodname$($request_maybe$Metadata headers = null, DateTime? deadline = null, CancellationToken cancellationToken = default(CancellationToken))\n", + "methodname", method_name, "request_maybe", + GetMethodRequestParamMaybe(method), "returntype", + GetMethodReturnTypeClient(method)); out->Print("{\n"); out->Indent(); - out->Print("var call = CreateCall($methodfield$, new CallOptions(headers, deadline, cancellationToken));\n", - "methodfield", GetMethodFieldName(method)); - switch (GetMethodType(method)) { - case METHODTYPE_NO_STREAMING: - out->Print("return Calls.AsyncUnaryCall(call, request);\n"); - break; - case METHODTYPE_CLIENT_STREAMING: - out->Print("return Calls.AsyncClientStreamingCall(call);\n"); - break; - case METHODTYPE_SERVER_STREAMING: - out->Print( - "return Calls.AsyncServerStreamingCall(call, request);\n"); - break; - case METHODTYPE_BIDI_STREAMING: - out->Print("return Calls.AsyncDuplexStreamingCall(call);\n"); - break; - default: - GOOGLE_LOG(FATAL)<< "Can't get here."; - } + + out->Print("return $methodname$($request_maybe$new CallOptions(headers, deadline, cancellationToken));\n", + "methodname", method_name, + "request_maybe", GetMethodRequestParamMaybe(method, true)); out->Outdent(); out->Print("}\n"); // overload taking CallOptions as a param out->Print( - "public $returntype$ $methodname$($request_maybe$CallOptions options)\n", + "public virtual $returntype$ $methodname$($request_maybe$CallOptions options)\n", "methodname", method_name, "request_maybe", GetMethodRequestParamMaybe(method), "returntype", GetMethodReturnTypeClient(method)); out->Print("{\n"); out->Indent(); - out->Print("var call = CreateCall($methodfield$, options);\n", - "methodfield", GetMethodFieldName(method)); switch (GetMethodType(method)) { case METHODTYPE_NO_STREAMING: - out->Print("return Calls.AsyncUnaryCall(call, request);\n"); + out->Print("return CallInvoker.AsyncUnaryCall($methodfield$, null, options, request);\n", + "methodfield", GetMethodFieldName(method)); break; case METHODTYPE_CLIENT_STREAMING: - out->Print("return Calls.AsyncClientStreamingCall(call);\n"); + out->Print("return CallInvoker.AsyncClientStreamingCall($methodfield$, null, options);\n", + "methodfield", GetMethodFieldName(method)); break; case METHODTYPE_SERVER_STREAMING: out->Print( - "return Calls.AsyncServerStreamingCall(call, request);\n"); + "return CallInvoker.AsyncServerStreamingCall($methodfield$, null, options, request);\n", + "methodfield", GetMethodFieldName(method)); break; case METHODTYPE_BIDI_STREAMING: - out->Print("return Calls.AsyncDuplexStreamingCall(call);\n"); + out->Print("return CallInvoker.AsyncDuplexStreamingCall($methodfield$, null, options);\n", + "methodfield", GetMethodFieldName(method)); break; default: GOOGLE_LOG(FATAL)<< "Can't get here."; @@ -422,17 +460,30 @@ void GenerateClientStub(Printer* out, const ServiceDescriptor *service) { out->Outdent(); out->Print("}\n"); } + + // override NewInstance method + out->Print("protected override $name$ NewInstance(ClientBaseConfiguration configuration)\n", + "name", GetClientClassName(service)); + out->Print("{\n"); + out->Indent(); + out->Print("return new $name$(configuration);\n", + "name", GetClientClassName(service)); + out->Outdent(); + out->Print("}\n"); + out->Outdent(); out->Print("}\n"); out->Print("\n"); } -void GenerateBindServiceMethod(Printer* out, const ServiceDescriptor *service) { +void GenerateBindServiceMethod(Printer* out, const ServiceDescriptor *service, + bool use_server_class) { out->Print( "// creates service definition that can be registered with a server\n"); out->Print( "public static ServerServiceDefinition BindService($interface$ serviceImpl)\n", - "interface", GetServerInterfaceName(service)); + "interface", use_server_class ? GetServerClassName(service) : + GetServerInterfaceName(service)); out->Print("{\n"); out->Indent(); @@ -489,8 +540,10 @@ void GenerateService(Printer* out, const ServiceDescriptor *service) { GenerateServiceDescriptorProperty(out, service); GenerateClientInterface(out, service); GenerateServerInterface(out, service); + GenerateServerClass(out, service); GenerateClientStub(out, service); - GenerateBindServiceMethod(out, service); + GenerateBindServiceMethod(out, service, false); + GenerateBindServiceMethod(out, service, true); GenerateNewStubMethods(out, service); out->Outdent(); |