| /* |
| * |
| * Copyright 2015 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. |
| *is % allowed in string |
| */ |
| |
| #include <memory> |
| #include <string> |
| |
| #include <gflags/gflags.h> |
| #include <grpc++/grpc++.h> |
| #include <grpc/support/log.h> |
| |
| #include "src/proto/grpc/testing/metrics.grpc.pb.h" |
| #include "src/proto/grpc/testing/metrics.pb.h" |
| #include "test/cpp/util/metrics_server.h" |
| #include "test/cpp/util/test_config.h" |
| |
| int kDeadlineSecs = 10; |
| |
| DEFINE_string(metrics_server_address, "localhost:8081", |
| "The metrics server addresses in the fomrat <hostname>:<port>"); |
| DEFINE_int32(deadline_secs, kDeadlineSecs, |
| "The deadline (in seconds) for RCP call"); |
| DEFINE_bool(total_only, false, |
| "If true, this prints only the total value of all gauges"); |
| |
| using grpc::testing::EmptyMessage; |
| using grpc::testing::GaugeResponse; |
| using grpc::testing::MetricsService; |
| using grpc::testing::MetricsServiceImpl; |
| |
| // Do not log anything |
| void BlackholeLogger(gpr_log_func_args* args) {} |
| |
| // Prints the values of all Gauges (unless total_only is set to 'true' in which |
| // case this only prints the sum of all gauge values). |
| bool PrintMetrics(std::unique_ptr<MetricsService::Stub> stub, bool total_only, |
| int deadline_secs) { |
| grpc::ClientContext context; |
| EmptyMessage message; |
| |
| std::chrono::system_clock::time_point deadline = |
| std::chrono::system_clock::now() + std::chrono::seconds(deadline_secs); |
| |
| context.set_deadline(deadline); |
| |
| std::unique_ptr<grpc::ClientReader<GaugeResponse>> reader( |
| stub->GetAllGauges(&context, message)); |
| |
| GaugeResponse gauge_response; |
| long overall_qps = 0; |
| while (reader->Read(&gauge_response)) { |
| if (gauge_response.value_case() == GaugeResponse::kLongValue) { |
| if (!total_only) { |
| std::cout << gauge_response.name() << ": " |
| << gauge_response.long_value() << std::endl; |
| } |
| overall_qps += gauge_response.long_value(); |
| } else { |
| std::cout << "Gauge '" << gauge_response.name() << "' is not long valued" |
| << std::endl; |
| } |
| } |
| |
| std::cout << overall_qps << std::endl; |
| |
| const grpc::Status status = reader->Finish(); |
| if (!status.ok()) { |
| std::cout << "Error in getting metrics from the client" << std::endl; |
| } |
| |
| return status.ok(); |
| } |
| |
| int main(int argc, char** argv) { |
| grpc::testing::InitTest(&argc, &argv, true); |
| |
| // The output of metrics client is in some cases programatically parsed (for |
| // example by the stress test framework). So, we do not want any of the log |
| // from the grpc library appearing on stdout. |
| gpr_set_log_function(BlackholeLogger); |
| |
| std::shared_ptr<grpc::Channel> channel(grpc::CreateChannel( |
| FLAGS_metrics_server_address, grpc::InsecureChannelCredentials())); |
| |
| if (!PrintMetrics(MetricsService::NewStub(channel), FLAGS_total_only, |
| FLAGS_deadline_secs)) { |
| return 1; |
| } |
| |
| return 0; |
| } |