Add extracted tools: CitrineOS, OpenOCPP, ShapeShifter
- CitrineOS core extracted (CSMS OCPP 2.0.1) - OpenOCPP extracted (firmware OCPP 1.6J/2.0.1) - ShapeShifter library installed (pip install -e) - ShapeShifter specification extracted - EVerest extracted TODO updated with progress
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Eric F
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// SPDX-License-Identifier: Apache-2.0
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// Copyright Pionix GmbH and Contributors to EVerest
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#include "powermeterImpl.hpp"
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#include "http_client.hpp"
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#include "lem_dcbm_time_sync_helper.hpp"
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#include <chrono>
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#include <everest/logging.hpp>
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#include <fmt/core.h>
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#include <string>
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#include <thread>
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namespace module::main {
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void powermeterImpl::init() {
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// Dependency injection pattern: Create the HTTP client first,
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// then move it into the controller as a constructor argument
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auto http_client = std::make_unique<HttpClient>(mod->config.ip_address, mod->config.port,
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mod->config.meter_tls_certificate, mod->config.interface);
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auto ntp_server_spec =
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module::main::ntp_server_spec{mod->config.ntp_server_1_ip_addr, mod->config.ntp_server_1_port,
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mod->config.ntp_server_2_ip_addr, mod->config.ntp_server_2_port};
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this->controller = std::make_unique<LemDCBM400600Controller>(
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std::move(http_client), std::make_unique<LemDCBMTimeSyncHelper>(ntp_server_spec),
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LemDCBM400600Controller::Conf{
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mod->config.resilience_initial_connection_retries, mod->config.resilience_initial_connection_retry_delay,
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mod->config.resilience_transaction_request_retries, mod->config.resilience_transaction_request_retry_delay,
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mod->config.cable_id, mod->config.tariff_id, mod->config.meter_timezone, mod->config.meter_dst,
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mod->config.SC, mod->config.UV, mod->config.UD, mod->config.IT, mod->config.command_timeout_ms});
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// Validate and normalize temperature thresholds for the monitor.
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// If the error level is configured below the warning level, clamp it and log a warning.
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double warning_level_C = mod->config.temperature_warning_level_C;
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double error_level_C = mod->config.temperature_error_level_C;
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if (error_level_C < warning_level_C) {
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EVLOG_warning << "LEM DCBM 400/600: temperature_error_level_C (" << error_level_C
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<< " °C) is below temperature_warning_level_C (" << warning_level_C
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<< " °C). Clamping error level to the warning level.";
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error_level_C = warning_level_C;
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}
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this->temperature_monitor = std::make_unique<TemperatureMonitor>(
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TemperatureMonitor::Config{warning_level_C, error_level_C, mod->config.temperature_hysteresis_K,
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std::chrono::milliseconds(mod->config.temperature_min_time_as_valid_ms)});
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}
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void powermeterImpl::ready() {
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// Start the live_measure_publisher thread, which periodically publishes the live measurements of the device
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this->live_measure_publisher_thread = std::thread([this] {
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while (true) {
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try {
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if (!this->controller->is_initialized()) {
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this->controller->init();
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this->publish_public_key_ocmf(this->controller->get_public_key_ocmf());
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std::this_thread::sleep_for(
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std::chrono::milliseconds(mod->config.resilience_initial_connection_retry_delay));
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} else {
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std::this_thread::sleep_for(std::chrono::milliseconds(1000));
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auto powermeter_data = this->controller->get_powermeter();
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this->publish_powermeter(powermeter_data);
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// if the communication error is set, clear the error
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if (this->error_state_monitor->is_error_active("powermeter/CommunicationFault",
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"Communication timed out")) {
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// need to update LEM status since we have recovered from a communication loss
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this->controller->update_lem_status();
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clear_error("powermeter/CommunicationFault", "Communication timed out");
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}
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// Evaluate temperature thresholds
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if (powermeter_data.temperatures.has_value() && powermeter_data.temperatures->size() >= 2) {
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const double temp_H = powermeter_data.temperatures->at(0).temperature;
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const double temp_L = powermeter_data.temperatures->at(1).temperature;
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auto events = this->temperature_monitor->update(temp_H, temp_L);
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handle_temperature_events(events, this->temperature_monitor->last_max_temperature());
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}
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}
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} catch (LemDCBM400600Controller::DCBMUnexpectedResponseException& error) {
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EVLOG_error << "LEM DCBM 400/600: Failed to execute the powermeter ready loop due to an invalid device "
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"response: "
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<< error.what();
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} catch (HttpClientError& client_error) {
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if (!this->error_state_monitor->is_error_active("powermeter/CommunicationFault",
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"Communication timed out")) {
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EVLOG_error << "Failed to communicate with the powermeter due to http error: "
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<< client_error.what();
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auto error =
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this->error_factory->create_error("powermeter/CommunicationFault", "Communication timed out",
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"This error is raised due to communication timeout");
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raise_error(error);
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}
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}
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}
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});
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}
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types::powermeter::TransactionStartResponse
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powermeterImpl::handle_start_transaction(types::powermeter::TransactionReq& value) {
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if (!this->controller->is_initialized()) {
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return types::powermeter::TransactionStartResponse{
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types::powermeter::TransactionRequestStatus::UNEXPECTED_ERROR, {}, {}, "Powermeter is not initialized"};
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}
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return this->controller->start_transaction(value);
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}
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types::powermeter::TransactionStopResponse powermeterImpl::handle_stop_transaction(std::string& transaction_id) {
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if (!this->controller->is_initialized()) {
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return types::powermeter::TransactionStopResponse{
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types::powermeter::TransactionRequestStatus::UNEXPECTED_ERROR, {}, {}, "Powermeter is not initialized"};
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}
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return this->controller->stop_transaction(transaction_id);
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}
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void powermeterImpl::handle_temperature_events(const TemperatureMonitor::Events& events, double max_temperature) {
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if (events.warning_raised) {
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EVLOG_warning << fmt::format(
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"LEM DCBM 400/600: Temperature warning raised — max temperature {:.1f} °C exceeds warning level {:.1f} °C",
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max_temperature, mod->config.temperature_warning_level_C);
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auto error =
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this->error_factory->create_error("powermeter/VendorWarning", "TemperatureWarning",
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fmt::format("Max temperature {:.1f} °C exceeds warning level {:.1f} °C",
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max_temperature, mod->config.temperature_warning_level_C));
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raise_error(error);
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}
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if (events.warning_cleared) {
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EVLOG_info << fmt::format(
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"LEM DCBM 400/600: Temperature warning cleared — max temperature {:.1f} °C dropped below {:.1f} °C",
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max_temperature, mod->config.temperature_warning_level_C - mod->config.temperature_hysteresis_K);
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clear_error("powermeter/VendorWarning", "TemperatureWarning");
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}
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if (events.error_raised) {
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EVLOG_error << fmt::format(
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"LEM DCBM 400/600: Temperature error raised — max temperature {:.1f} °C exceeds error level {:.1f} °C",
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max_temperature, mod->config.temperature_error_level_C);
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auto error =
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this->error_factory->create_error("powermeter/VendorError", "TemperatureError",
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fmt::format("Max temperature {:.1f} °C exceeds error level {:.1f} °C",
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max_temperature, mod->config.temperature_error_level_C));
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raise_error(error);
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}
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if (events.error_cleared) {
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EVLOG_info << fmt::format(
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"LEM DCBM 400/600: Temperature error cleared — max temperature {:.1f} °C dropped below {:.1f} °C",
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max_temperature, mod->config.temperature_error_level_C - mod->config.temperature_hysteresis_K);
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clear_error("powermeter/VendorError", "TemperatureError");
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}
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}
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} // namespace module::main
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