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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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140 lines
4.4 KiB
140 lines
4.4 KiB
6 years ago
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/*
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*
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* Copyright 2018 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <memory>
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#include <vector>
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#include <grpcpp/channel.h>
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#include <grpcpp/client_context.h>
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#include <grpcpp/create_channel.h>
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#include <grpcpp/generic/generic_stub.h>
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#include <grpcpp/impl/codegen/client_interceptor.h>
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#include <grpcpp/impl/codegen/proto_utils.h>
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#include <grpcpp/server.h>
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#include <grpcpp/server_builder.h>
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#include <grpcpp/server_context.h>
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#include "src/proto/grpc/testing/echo.grpc.pb.h"
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#include "test/core/util/port.h"
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#include "test/core/util/test_config.h"
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#include "test/cpp/end2end/test_service_impl.h"
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#include "test/cpp/util/byte_buffer_proto_helper.h"
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#include <gtest/gtest.h>
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namespace grpc {
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namespace testing {
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namespace {
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class ClientInterceptorsEnd2endTest : public ::testing::Test {
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protected:
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ClientInterceptorsEnd2endTest() {
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int port = grpc_pick_unused_port_or_die();
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ServerBuilder builder;
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server_address_ = "localhost:" + std::to_string(port);
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builder.AddListeningPort(server_address_, InsecureServerCredentials());
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builder.RegisterService(&service_);
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server_ = builder.BuildAndStart();
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}
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~ClientInterceptorsEnd2endTest() { server_->Shutdown(); }
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std::string server_address_;
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TestServiceImpl service_;
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std::unique_ptr<Server> server_;
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};
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class LoggingInterceptor : public experimental::ClientInterceptor {
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public:
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LoggingInterceptor(experimental::ClientRpcInfo* info) { info_ = info; }
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virtual void Intercept(experimental::InterceptorBatchMethods* methods) {
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gpr_log(GPR_ERROR, "here\n");
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if (methods->QueryInterceptionHookPoint(
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experimental::InterceptionHookPoints::PRE_SEND_INITIAL_METADATA)) {
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gpr_log(GPR_ERROR, "here\n");
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}
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if (methods->QueryInterceptionHookPoint(
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experimental::InterceptionHookPoints::PRE_SEND_MESSAGE)) {
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gpr_log(GPR_ERROR, "here\n");
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}
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if (methods->QueryInterceptionHookPoint(
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experimental::InterceptionHookPoints::PRE_SEND_CLOSE)) {
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gpr_log(GPR_ERROR, "here\n");
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}
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if (methods->QueryInterceptionHookPoint(
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experimental::InterceptionHookPoints::POST_RECV_INITIAL_METADATA)) {
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gpr_log(GPR_ERROR, "here\n");
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}
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if (methods->QueryInterceptionHookPoint(
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experimental::InterceptionHookPoints::POST_RECV_MESSAGE)) {
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gpr_log(GPR_ERROR, "here\n");
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}
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if (methods->QueryInterceptionHookPoint(
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experimental::InterceptionHookPoints::POST_RECV_STATUS)) {
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gpr_log(GPR_ERROR, "here\n");
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}
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gpr_log(GPR_ERROR, "here\n");
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methods->Proceed();
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}
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private:
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experimental::ClientRpcInfo* info_;
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};
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class LoggingInterceptorFactory
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: public experimental::ClientInterceptorFactoryInterface {
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public:
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virtual experimental::ClientInterceptor* CreateClientInterceptor(
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experimental::ClientRpcInfo* info) override {
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return new LoggingInterceptor(info);
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}
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};
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TEST_F(ClientInterceptorsEnd2endTest, ClientInterceptorLoggingTest) {
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ChannelArguments args;
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auto creators = std::unique_ptr<std::vector<
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>>(
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new std::vector<
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std::unique_ptr<experimental::ClientInterceptorFactoryInterface>>());
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creators->push_back(std::unique_ptr<LoggingInterceptorFactory>(
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new LoggingInterceptorFactory()));
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auto channel = experimental::CreateCustomChannelWithInterceptors(
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server_address_, InsecureChannelCredentials(), args, std::move(creators));
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auto stub = grpc::testing::EchoTestService::NewStub(channel);
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ClientContext ctx;
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EchoRequest req;
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req.set_message("Hello");
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EchoResponse resp;
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Status s = stub->Echo(&ctx, req, &resp);
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EXPECT_EQ(s.ok(), true);
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std::cout << resp.message() << "\n";
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}
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} // namespace
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} // namespace testing
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} // namespace grpc
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int main(int argc, char** argv) {
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grpc_test_init(argc, argv);
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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