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/**
* (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
* (C) 2016 - 2019 Stanislav Angelovic <angelovic.s@gmail.com>
*
* @file xml2cpp.cpp
*
* Created on: Feb 1, 2017
* Project: sdbus-c++
* Description: High-level D-Bus IPC C++ library based on sd-bus
*
* This file is part of sdbus-c++.
*
* sdbus-c++ is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* sdbus-c++ 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
*/
// Own
#include "xml.h"
#include "AdaptorGenerator.h"
#include "ProxyGenerator.h"
// STL
#include <cstdlib>
#include <cstring>
#include <string>
#include <map>
#include <iostream>
#include <fstream>
#include <sstream>
using std::endl;
using namespace sdbuscpp;
void usage(std::ostream& output, const char* programName)
{
output << "Usage: " << programName << " [OPTION]... [FILE]" << endl <<
"Creates C++ stubs for DBus API for adaptor and/or client" << endl <<
endl <<
"Available options:" << endl <<
" --proxy=FILE Generate header file FILE with proxy class (client)" << endl <<
" --adaptor=FILE Generate header file FILE with stub class (server)" << endl <<
" -h, --help " << endl <<
" --verbose Explain what is being done" << endl <<
endl <<
"The stub generator takes an XML file describing DBus interface and creates" << endl <<
"C++ header files to be used by C++ code wanting to cumminicate through that" << endl <<
"interface. Clients of the interface (those making the calls) need header" << endl <<
"created with the --proxy option as this header forwards the calls via DBus" << endl <<
"to provider of the service and the returns the result to the caller. Server" << endl <<
"implementing the service should derive from interface classes in header" << endl <<
"generated for --adaptor option and implement their methods." << endl <<
endl <<
"When FILE is not specified, standard input is read. Exit status is 0 when" << endl <<
"no error was encountered and all requested headers were sucessfully generated." << endl <<
"Otherwise 1 is returned." << endl;
}
int main(int argc, char **argv)
{
const char* programName = argv[0];
argv++;
argc--;
const char* proxy = nullptr;
const char* adaptor = nullptr;
const char* xmlFile = nullptr;
bool verbose = false;
while (argc > 0)
{
if (!strncmp(*argv, "--proxy=", 8))
{
if (proxy != nullptr)
{
std::cerr << "Multiple occurrencies of --proxy is not allowed" << endl;
usage(std::cerr, programName);
return 1;
}
proxy = *argv + 8;
}
else if (!strncmp(*argv, "--adaptor=", 10) || !strncmp(*argv, "--adapter=", 10))
{
if (adaptor != nullptr)
{
std::cerr << "Multiple occurrencies of --adaptor is not allowed" << endl;
usage(std::cerr, programName);
return 1;
}
adaptor = *argv + 10;
}
else if (!strcmp(*argv, "--help") || !strcmp(*argv, "-h"))
{
usage(std::cout, programName);
return 0;
}
else if (!strcmp(*argv, "--verbose"))
{
verbose = true;
}
else if (**argv == '-')
{
std::cerr << "Unknown option " << *argv << endl;
usage(std::cerr, programName);
return 1;
}
else
{
if (xmlFile != nullptr)
{
std::cerr << "More than one input file specified: " << *argv << endl;
usage(std::cerr, programName);
return 1;
}
xmlFile = *argv;
}
argc--;
argv++;
}
if (!proxy && !adaptor)
{
std::cerr << "Either --proxy or --adapter need to be specified" << endl;
usage(std::cerr, programName);
return 1;
}
xml::Document doc;
try
{
if (xmlFile != nullptr)
{
if (verbose)
{
std::cerr << "Reading DBus interface from " << xmlFile << endl;
}
std::ifstream input(xmlFile);
if (input.fail())
{
std::cerr << "Unable to open file " << xmlFile << endl;
return 1;
}
input >> doc;
}
else
{
if (verbose)
{
std::cerr << "Reading DBus interface from standard input" << endl;
}
std::cin >> doc;
}
}
catch (const xml::Error& e)
{
std::cerr << "Parsing error: " << e.what() << endl;
return 1;
}
if (!doc.root)
{
std::cerr << "Empty document" << endl;
return 1;
}
if (proxy)
{
if (verbose)
{
std::cerr << "Generating proxy header " << proxy << endl;
}
ProxyGenerator pg;
pg.transformXmlToFile(doc, proxy);
}
if (adaptor)
{
if (verbose)
{
std::cerr << "Generating adaptor header " << adaptor << endl;
}
AdaptorGenerator ag;
ag.transformXmlToFile(doc, adaptor);
}
return 0;
}
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