srsLTE/srsenb/src/parser.cc

129 lines
2.9 KiB
C++

/**
* Copyright 2013-2022 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include "srsenb/hdr/parser.h"
#include <iostream>
namespace srsenb {
using namespace libconfig;
int parser::parse_section(std::string filename, parser::section* s)
{
parser p(filename);
p.add_section(s);
return p.parse();
}
parser::parser(std::string filename_)
{
filename = filename_;
}
void parser::add_section(parser::section* s)
{
sections.push_back(s);
}
int parser::parse()
{
// open file
Config cfg;
try {
cfg.readFile(filename.c_str());
} catch (const FileIOException& fioex) {
std::cerr << "I/O error while reading file: " << filename << std::endl;
return (-1);
} catch (const ParseException& pex) {
std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine() << " - " << pex.getError() << std::endl;
return (-1);
}
for (auto s : sections) {
if (s->parse(cfg.getRoot())) {
return -1;
}
}
return 0;
}
parser::section::section(std::string name_)
{
name = std::move(name_);
enabled_value = nullptr;
}
// Fields are allocated dynamically, free all fields added to the section
parser::section::~section()
{
for (auto& field : fields) {
delete field;
}
}
void parser::section::add_field(field_itf* f)
{
fields.push_back(f);
}
void parser::section::add_subsection(parser::section* s)
{
sub_sections.push_back(s);
}
void parser::section::set_optional(bool* enabled_value_)
{
enabled_value = enabled_value_;
}
int parser::section::parse(Setting& root)
{
try {
for (auto f : fields) {
if (f->parse(root[name.c_str()])) {
fprintf(stderr, "Error parsing field %s in section %s\n", f->get_name(), name.c_str());
return -1;
}
}
for (auto s : sub_sections) {
if (s->parse(root[name.c_str()])) {
fprintf(stderr, "Error parsing section %s\n", name.c_str());
return -1;
}
}
if (enabled_value) {
*enabled_value = true;
}
} catch (const SettingNotFoundException& ex) {
if (enabled_value) {
*enabled_value = false;
return 0;
} else {
std::cerr << "Error section " << name.c_str() << " not found." << std::endl;
return -1;
}
}
return 0;
}
} // namespace srsenb