| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| // |
| // #include "tsfile_cwrapper_expression.h" |
| // |
| // #include "common/global.h" |
| // #include "reader/expression.h" |
| // #include "reader/filter/filter.h" |
| // #include "reader/filter/time_filter.h" |
| // #include "reader/filter/time_operator.h" |
| // #include "reader/result_set.h" |
| // #include "reader/tsfile_reader.h" |
| // #include "utils/errno_define_c.h" |
| // #include "writer/tsfile_writer.h" |
| // |
| // #define E_OK common::E_OK |
| // |
| // #define CONSTRUCT_EXP_INTERNAL(exp, column_name) \ |
| // do { \ |
| // exp.column_name = column_name; \ |
| // exp.operate_type = oper; \ |
| // exp.children_length = 0; \ |
| // } while (0) |
| // |
| // Expression create_column_filter(const char* column_name, OperatorType oper, |
| // int32_t int32_value) { |
| // Expression exp; |
| // CONSTRUCT_EXP_INTERNAL(exp, column_name); |
| // exp.const_condition.value_condition = int32_value; |
| // exp.const_condition.type = TSDataType::TS_DATATYPE_INT32; |
| // return exp; |
| // } |
| // |
| // Expression create_column_filter(const char* column_name, OperatorType oper, |
| // int64_t int64_value) { |
| // Expression exp; |
| // CONSTRUCT_EXP_INTERNAL(exp, column_name); |
| // exp.const_condition.value_condition = int64_value; |
| // exp.const_condition.type = TSDataType::TS_DATATYPE_INT64; |
| // return exp; |
| // } |
| // Expression create_column_filter(const char* column_name, OperatorType oper, |
| // bool bool_value) { |
| // Expression exp; |
| // CONSTRUCT_EXP_INTERNAL(exp, column_name); |
| // exp.const_condition.value_condition = bool_value ? 1 : 0; |
| // exp.const_condition.type = TSDataType::TS_DATATYPE_BOOLEAN; |
| // return exp; |
| // } |
| // Expression create_column_filter(const char* column_name, OperatorType oper, |
| // float float_value) { |
| // Expression exp; |
| // CONSTRUCT_EXP_INTERNAL(exp, column_name); |
| // memcpy(&exp.const_condition.value_condition, &float_value, sizeof(float)); |
| // exp.const_condition.type = TSDataType::TS_DATATYPE_FLOAT; |
| // return exp; |
| // } |
| // Expression create_column_filter(const char* column_name, OperatorType oper, |
| // double double_value) { |
| // Expression exp; |
| // CONSTRUCT_EXP_INTERNAL(exp, column_name); |
| // exp.const_condition.value_condition = double_value; |
| // exp.const_condition.type = TSDataType::TS_DATATYPE_DOUBLE; |
| // return exp; |
| // } |
| // Expression create_column_filter(const char* column_name, OperatorType oper, |
| // const char* char_value) { |
| // Expression exp; |
| // CONSTRUCT_EXP_INTERNAL(exp, column_name); |
| // exp.const_condition.value_condition = reinterpret_cast<int64_t>(char_value); |
| // exp.const_condition.type = TSDataType::TS_DATATYPE_TEXT; |
| // return exp; |
| // } |
| // |
| // TimeFilterExpression* create_andquery_timefilter() { |
| // storage::Expression* exp = new storage::Expression(storage::AND_EXPR); |
| // return (TimeFilterExpression*)exp; |
| // } |
| // |
| // TimeFilterExpression* create_time_filter(const char* table_name, |
| // const char* column_name, |
| // OperatorType oper, int64_t timestamp) { |
| // std::string table_name_str(table_name); |
| // std::string column_name_str(column_name); |
| // storage::Path path(table_name_str, column_name_str); |
| // storage::Filter* filter; |
| // switch (oper) { |
| // case GT: |
| // filter = storage::TimeFilter::gt(timestamp); |
| // break; |
| // case LT: |
| // filter = storage::TimeFilter::lt(timestamp); |
| // break; |
| // case EQ: |
| // filter = storage::TimeFilter::eq(timestamp); |
| // break; |
| // case NOTEQ: |
| // filter = storage::TimeFilter::not_eqt(timestamp); |
| // break; |
| // case GE: |
| // filter = storage::TimeFilter::gt_eq(timestamp); |
| // break; |
| // case LE: |
| // filter = storage::TimeFilter::lt_eq(timestamp); |
| // break; |
| // default: |
| // filter = nullptr; |
| // break; |
| // } |
| // storage::Expression* exp = |
| // new storage::Expression(storage::SERIES_EXPR, path, filter); |
| // return (TimeFilterExpression*)exp; |
| // } |
| // |
| // TimeFilterExpression* add_time_filter_to_and_query( |
| // TimeFilterExpression* exp_and, TimeFilterExpression* exp) { |
| // storage::Expression* and_exp = (storage::Expression*)exp_and; |
| // storage::Expression* time_exp = (storage::Expression*)exp; |
| // if (and_exp->left_ == nullptr) { |
| // and_exp->left_ = time_exp; |
| // } else if (and_exp->right_ == nullptr) { |
| // and_exp->right_ = time_exp; |
| // } else { |
| // storage::Expression* new_exp = |
| // new storage::Expression(storage::AND_EXPR); |
| // new_exp->left_ = and_exp->right_; |
| // and_exp->right_ = new_exp; |
| // add_time_filter_to_and_query((TimeFilterExpression*)new_exp, exp); |
| // } |
| // return exp_and; |
| // } |
| // |
| // void destory_time_filter_query(TimeFilterExpression* expression) { |
| // if (expression == nullptr) { |
| // return; |
| // } |
| // |
| // destory_time_filter_query( |
| // (TimeFilterExpression*)((storage::Expression*)expression)->left_); |
| // destory_time_filter_query( |
| // (TimeFilterExpression*)((storage::Expression*)expression)->right_); |
| // storage::Expression* exp = (storage::Expression*)expression; |
| // if (exp->type_ == storage::ExpressionType::SERIES_EXPR) { |
| // delete exp->filter_; |
| // } else { |
| // delete exp; |
| // } |
| // } |
| // |
| // Expression create_global_time_expression(OperatorType oper, int64_t timestamp) { |
| // Expression exp; |
| // exp.operate_type = oper; |
| // exp.expression_type = GLOBALTIME; |
| // exp.const_condition.value_condition = timestamp; |
| // exp.const_condition.type = TSDataType::TS_DATATYPE_INT64; |
| // return exp; |
| // } |
| // |
| // Expression* and_filter_to_and_query(Expression* exp_and, Expression* exp) { |
| // if (exp_and->children_length >= MAX_COLUMN_FILTER_NUM - 1) { |
| // return nullptr; |
| // } |
| // exp_and->children[exp_and->children_length++] = exp; |
| // return exp_and; |
| // } |
| // |
| // QueryDataRet ts_reader_query(TsFileReader reader, const char* table_name, |
| // const char** columns_name, int column_num, |
| // TimeFilterExpression* expression) { |
| // auto* r = (storage::TsFileReader*)reader; |
| // std::string table_name_str(table_name); |
| // std::vector<storage::Path> selected_paths; |
| // for (int i = 0; i < column_num; i++) { |
| // std::string column_name(columns_name[i]); |
| // selected_paths.push_back(storage::Path(table_name_str, column_name)); |
| // } |
| // |
| // storage::ResultSet* qds = nullptr; |
| // storage::QueryExpression* query_expression = |
| // storage::QueryExpression::create(selected_paths, |
| // (storage::Expression*)expression); |
| // r->query(query_expression, qds); |
| // QueryDataRet ret = (QueryDataRet)malloc(sizeof(struct query_data_ret)); |
| // ret->data = qds; |
| // ret->column_names = (char**)malloc(column_num * sizeof(char*)); |
| // ret->column_num = column_num; |
| // for (int i = 0; i < column_num; i++) { |
| // ret->column_names[i] = strdup(columns_name[i]); |
| // } |
| // return ret; |
| // } |
