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/**
* Copyright (c) 2020, Timothy Stack
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Timothy Stack nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "all_logs_vtab.hh"
#include "base/attr_line.hh"
#include "config.h"
#include "data_parser.hh"
#include "elem_to_json.hh"
static auto intern_lifetime = intern_string::get_table_lifetime();
all_logs_vtab::all_logs_vtab()
: log_vtab_impl(intern_string::lookup("all_logs")),
alv_msg_meta(intern_string::lookup("log_msg_format"),
value_kind_t::VALUE_TEXT,
logline_value_meta::table_column{0}),
alv_schema_meta(intern_string::lookup("log_msg_schema"),
value_kind_t::VALUE_TEXT,
logline_value_meta::table_column{1}),
alv_values_meta(intern_string::lookup("log_msg_values"),
value_kind_t::VALUE_JSON,
logline_value_meta::table_column{2})
{
this->alv_msg_meta.lvm_identifier = true;
this->alv_schema_meta.lvm_identifier = true;
}
void
all_logs_vtab::get_columns(std::vector<vtab_column>& cols) const
{
cols.emplace_back(
vtab_column(this->alv_msg_meta.lvm_name.get())
.with_comment(
"The message format with variables replaced by hash marks"));
cols.emplace_back(this->alv_schema_meta.lvm_name.get(),
SQLITE3_TEXT,
"",
true,
"The ID for the message schema");
cols.emplace_back(this->alv_values_meta.lvm_name.get(),
SQLITE3_TEXT,
"",
false,
"The values extracted from the message");
}
void
all_logs_vtab::extract(logfile* lf,
uint64_t line_number,
logline_value_vector& values)
{
auto& line = values.lvv_sbr;
auto* format = lf->get_format_ptr();
logline_value_vector sub_values;
this->vi_attrs.clear();
sub_values.lvv_sbr = line.clone();
format->annotate(line_number, this->vi_attrs, sub_values, false);
auto body = find_string_attr_range(this->vi_attrs, &SA_BODY);
if (body.lr_start == -1) {
body.lr_start = 0;
body.lr_end = line.length();
}
data_scanner ds(
line.to_string_fragment().sub_range(body.lr_start, body.lr_end));
data_parser dp(&ds);
std::string str;
dp.dp_msg_format = &str;
dp.parse();
yajlpp_gen gen;
yajl_gen_config(gen, yajl_gen_beautify, false);
elements_to_json(gen, dp, &dp.dp_pairs);
values.lvv_values.emplace_back(this->alv_msg_meta, std::move(str));
values.lvv_values.emplace_back(this->alv_schema_meta,
dp.dp_schema_id.to_string());
values.lvv_values.emplace_back(
this->alv_values_meta,
json_string(gen).to_string_fragment().to_string());
values.lvv_opid_value = std::move(sub_values.lvv_opid_value);
}
bool
all_logs_vtab::next(log_cursor& lc, logfile_sub_source& lss)
{
return true;
}
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