26 lines
1.0 KiB
C++
26 lines
1.0 KiB
C++
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#include "data_handler.h"
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#include "spdlog/spdlog.h"
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#include "vendor/nlohmann/json.hpp"
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using json = nlohmann::json;
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DataHandler::DataHandler(MqttClient& client) : m_client(client) {}
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void DataHandler::handle(mqtt::const_message_ptr msg) {
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spdlog::info("DataHandler is processing message from topic: {}", msg->get_topic());
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try {
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// (这里是原来 MqttRouter 中处理数据上报的逻辑)
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auto received_json = json::parse(msg->get_payload_str());
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if (received_json.contains("temperature")) {
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double temp = received_json["temperature"];
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json forward_json;
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forward_json["source_topic"] = msg->get_topic();
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forward_json["processed_temp"] = temp;
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forward_json["timestamp"] = time(0);
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const std::string output_topic = "proxy/processed/temperature";
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m_client.publish(output_topic, forward_json.dump());
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}
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} catch (const json::parse_error& e) {
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spdlog::error("JSON parse error in DataHandler: {}", e.what());
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}
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}
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