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Add generic JSON-scenario perf client (microsoft#618)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| // Copyright (c) Microsoft Corporation. All rights reserved. | ||
| // Licensed under the Apache 2.0 License. | ||
| #include "ds/files.h" | ||
| #include "perf_client.h" | ||
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| #include <nlohmann/json.hpp> | ||
| #include <string> | ||
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| using Base = client::PerfBase; | ||
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| class ScenarioPerfClient : public Base | ||
| { | ||
| private: | ||
| size_t repetitions = 1; | ||
| std::string scenario_file; | ||
| nlohmann::json scenario_json; | ||
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| void send_verbose_transactions( | ||
| const std::shared_ptr<RpcTlsClient>& connection, char const* element_name) | ||
| { | ||
| const auto it = scenario_json.find(element_name); | ||
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| if (it != scenario_json.end()) | ||
| { | ||
| const auto transactions = *it; | ||
| if (!transactions.is_array()) | ||
| { | ||
| throw std::runtime_error(fmt::format( | ||
| "Expected scenario to contain '{}' field containing an array of " | ||
| "transaction objects", | ||
| element_name)); | ||
| } | ||
|
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| std::cout << fmt::format( | ||
| "Sending {} {} transactions", | ||
| transactions.size(), | ||
| element_name) | ||
| << std::endl; | ||
| for (const auto& transaction : transactions) | ||
| { | ||
| const auto method = transaction["method"]; | ||
| const auto params = transaction["params"]; | ||
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| std::cout << fmt::format("Sending {}: {}", method, params.dump(2)) | ||
| << std::endl; | ||
| const auto response = | ||
| nlohmann::json::from_msgpack(connection->call(method, params)); | ||
| std::cout << fmt::format("Response: {}", response.dump(2)) << std::endl; | ||
| } | ||
| } | ||
| } | ||
|
|
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| void pre_creation_hook() override | ||
| { | ||
| scenario_json = files::slurp_json(scenario_file); | ||
| } | ||
|
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| void send_creation_transactions( | ||
| const std::shared_ptr<RpcTlsClient>& connection) override | ||
| { | ||
| send_verbose_transactions(connection, "setup"); | ||
| } | ||
|
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| void post_timing_body_hook() override | ||
| { | ||
| const auto connection = create_connection(); | ||
| send_verbose_transactions(connection, "cleanup"); | ||
| } | ||
|
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| void prepare_transactions() override | ||
| { | ||
| constexpr auto transactions_element_name = "transactions"; | ||
|
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| const auto transactions = scenario_json[transactions_element_name]; | ||
| if (!transactions.is_array()) | ||
| { | ||
| throw std::runtime_error(fmt::format( | ||
| "Expected scenario to contain '{}' field containing an array of " | ||
| "transaction objects", | ||
| transactions_element_name)); | ||
| } | ||
|
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| // Reserve space for transactions | ||
| prepared_txs.reserve(transactions.size() * repetitions); | ||
|
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| for (size_t r = 0; r < repetitions; ++r) | ||
| { | ||
| for (size_t i = 0; i < transactions.size(); ++i) | ||
| { | ||
| const auto& transaction = transactions[i]; | ||
|
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| add_prepared_tx( | ||
| transaction["method"], transaction["params"], true, std::nullopt); | ||
| } | ||
| } | ||
| } | ||
|
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| public: | ||
| ScenarioPerfClient() : Base("scenario_perf") {} | ||
|
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| void setup_parser(CLI::App& app) override | ||
| { | ||
| Base::setup_parser(app); | ||
|
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| app.add_option("--repetitions", repetitions); | ||
| app.add_option("--scenario-file", scenario_file) | ||
| ->required(true) | ||
| ->check(CLI::ExistingFile); | ||
| } | ||
| }; | ||
|
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| int main(int argc, char** argv) | ||
| { | ||
| ScenarioPerfClient client; | ||
| CLI::App cli_app{"Scenario Perf Client"}; | ||
| client.setup_parser(cli_app); | ||
| CLI11_PARSE(cli_app, argc, argv); | ||
|
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| client.run(); | ||
|
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||
| return 0; | ||
| } |
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