1 /** 2 * Copyright (c) 2007-2012, Timothy Stack 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * * Redistributions of source code must retain the above copyright notice, this 10 * list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * * Neither the name of Timothy Stack nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 25 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * @file log_data_table.hh 30 */ 31 32 #ifndef lnav_log_data_table_hh 33 #define lnav_log_data_table_hh 34 35 #include <string> 36 #include <vector> 37 38 #include "logfile.hh" 39 #include "logfile_sub_source.hh" 40 #include "data_parser.hh" 41 #include "column_namer.hh" 42 #include "log_vtab_impl.hh" 43 44 class log_data_table : public log_vtab_impl { 45 public: 46 47 log_data_table(logfile_sub_source &lss, 48 log_vtab_manager &lvm, 49 content_line_t template_line, 50 intern_string_t table_name); 51 52 void get_columns_int(); 53 get_columns(std::vector<vtab_column> & cols) const54 void get_columns(std::vector<vtab_column> &cols) const override { 55 cols = this->ldt_cols; 56 }; 57 get_foreign_keys(std::vector<std::string> & keys_inout) const58 void get_foreign_keys(std::vector<std::string> &keys_inout) const override 59 { 60 log_vtab_impl::get_foreign_keys(keys_inout); 61 keys_inout.emplace_back("log_msg_instance"); 62 }; 63 64 bool next(log_cursor &lc, logfile_sub_source &lss) override; 65 66 void extract(std::shared_ptr<logfile> lf, 67 uint64_t line_number, 68 shared_buffer_ref &line, 69 std::vector<logline_value> &values) override; 70 71 private: 72 logfile_sub_source &ldt_log_source; 73 const content_line_t ldt_template_line; 74 data_parser::schema_id_t ldt_schema_id; 75 shared_buffer_ref ldt_current_line; 76 data_parser::element_list_t ldt_pairs; 77 std::shared_ptr<log_vtab_impl> ldt_format_impl; 78 int64_t ldt_instance; 79 std::vector<vtab_column> ldt_cols; 80 std::vector<logline_value_meta> ldt_value_metas; 81 }; 82 83 #endif 84