74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
#include <dsm/data_query.h>
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DataQuery::DataQuery() { logger_ = std::make_unique<LOG>("DataQuery"); }
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DataQuery::~DataQuery() {}
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json DataQuery::ihd_query_data(vector<string> tags,
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mix_cc::time_range_t time_range,
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TimeDur ihd_min_time_particles) {
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std::vector<TimePoint> queried_time; ///< ihdb查询后的时间缓存
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Eigen::Matrix<double, Eigen::Dynamic, Eigen::Dynamic>
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queried_data; ///< ihd查询后的数据缓存
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json return_js = json::object();
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int tag_num = tags.size();
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try {
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auto queried_batch_maybe = mix_cc::ihd::make_query_batch_maybe(
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tags, time_range, ihd_min_time_particles);
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if (queried_batch_maybe.is_nothing()) {
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queried_time.clear();
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queried_data = typename decltype(queried_batch_maybe)::type::Mat2d{};
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logger_->Error() << "Tag点没有查到相应的信息" << std::endl;
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return return_js;
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}
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auto queried_bath = queried_batch_maybe.unsafe_get_just();
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auto result_maybe = mix_cc::ihd::read_data_with_time_maybe(&queried_bath);
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if (result_maybe.is_nothing()) {
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queried_time.clear();
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queried_data = typename decltype(queried_batch_maybe)::type::Mat2d{};
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logger_->Error() << "Tag点没有查到相应的数据1" << std::endl;
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logger_->Error()
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<< mix_cc::mix_time_t(time_range.get_left()).to_formatted_time()
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<< " ~ "
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<< mix_cc::mix_time_t(time_range.get_right()).to_formatted_time()
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<< std::endl;
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return return_js;
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}
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std::tie(queried_time, queried_data) = result_maybe.unsafe_get_just();
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if (queried_data.rows() == 0) {
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logger_->Error() << "Tag点没有查到相应的数据2" << std::endl;
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logger_->Error()
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<< mix_cc::mix_time_t(time_range.get_left()).to_formatted_time()
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<< " ~ "
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<< mix_cc::mix_time_t(time_range.get_right()).to_formatted_time()
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<< std::endl;
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return return_js;
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}
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} catch (const std::exception &e) {
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logger_->Error() << e.what() << std::endl;
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return return_js;
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}
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try {
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for (int i = 0; i < tag_num; i++) {
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Eigen::VectorXd selected_col = queried_data.col(i); // 提取列向量
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std::vector<double> col_vec(selected_col.data(),
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selected_col.data() + selected_col.size());
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return_js[tags[i]] = col_vec;
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}
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std::vector<uint64_t> time_point;
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for (auto item : queried_time) {
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time_point.push_back(mix_cc::mix_time_t(item).to_milliseconds());
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}
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return_js["time"] = time_point;
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} catch (const std::exception &e) {
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logger_->Error() << e.what() << std::endl;
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return return_js;
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}
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return return_js;
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}
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json DataQuery::operator()(vector<string> tags, mix_cc::time_range_t time_range,
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TimeDur ihd_min_time_particles) {
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return ihd_query_data(tags, time_range, ihd_min_time_particles);
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} |