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