forked from Kistler-Group/sdbus-cpp
Move code generator to tools subdirectory for higher consistency with OSS standards
This commit is contained in:
sangelovic
202
tools/xml2cpp-codegen/xml2cpp.cpp
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202
tools/xml2cpp-codegen/xml2cpp.cpp
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/**
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* (C) 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
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*
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* @file xml2cpp.cpp
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*
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* Created on: Feb 1, 2017
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* Project: sdbus-c++
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* Description: High-level D-Bus IPC C++ library based on sd-bus
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*
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* This file is part of sdbus-c++.
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*
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* sdbus-c++ is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* sdbus-c++ is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
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*/
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// Own
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#include "xml.h"
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#include "AdaptorGenerator.h"
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#include "ProxyGenerator.h"
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// STL
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#include <cstdlib>
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#include <cstring>
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#include <string>
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#include <map>
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#include <iostream>
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#include <fstream>
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#include <sstream>
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using std::endl;
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using namespace sdbuscpp;
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void usage(std::ostream& output, const char* programName)
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{
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output << "Usage: " << programName << " [OPTION]... [FILE]" << endl <<
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"Creates C++ stubs for DBus API for adaptor and/or client" << endl <<
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endl <<
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"Available options:" << endl <<
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" --proxy=FILE Generate header file FILE with proxy class (client)" << endl <<
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" --adaptor=FILE Generate header file FILE with stub class (server)" << endl <<
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" -h, --help " << endl <<
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" --verbose Explain what is being done" << endl <<
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endl <<
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"The stub generator takes an XML file describing DBus interface and creates" << endl <<
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"C++ header files to be used by C++ code wanting to cumminicate through that" << endl <<
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"interface. Clients of the interface (those making the calls) need header" << endl <<
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"created with the --proxy option as this header forwards the calls via DBus" << endl <<
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"to provider of the service and the returns the result to the caller. Server" << endl <<
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"implementing the service should derive from interface classes in header" << endl <<
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"generated for --adaptor option and implement their methods." << endl <<
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endl <<
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"When FILE is not specified, standard input is read. Exit status is 0 when" << endl <<
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"no error was encountered and all requested headers were sucessfully generated." << endl <<
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"Otherwise 1 is returned." << endl;
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}
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int main(int argc, char **argv)
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{
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const char* programName = argv[0];
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argv++;
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argc--;
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const char* proxy = nullptr;
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const char* adaptor = nullptr;
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const char* xmlFile = nullptr;
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bool verbose = false;
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while (argc > 0)
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{
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if (!strncmp(*argv, "--proxy=", 8))
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{
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if (proxy != nullptr)
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{
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std::cerr << "Multiple occurrencies of --proxy is not allowed" << endl;
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usage(std::cerr, programName);
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return 1;
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}
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proxy = *argv + 8;
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}
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else if (!strncmp(*argv, "--adaptor=", 10) || !strncmp(*argv, "--adapter=", 10))
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{
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if (adaptor != nullptr)
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{
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std::cerr << "Multiple occurrencies of --adaptor is not allowed" << endl;
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usage(std::cerr, programName);
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return 1;
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}
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adaptor = *argv + 10;
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}
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else if (!strcmp(*argv, "--help") || !strcmp(*argv, "-h"))
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{
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usage(std::cout, programName);
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return 0;
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}
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else if (!strcmp(*argv, "--verbose"))
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{
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verbose = true;
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}
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else if (**argv == '-')
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{
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std::cerr << "Unknown option " << *argv << endl;
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usage(std::cerr, programName);
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return 1;
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}
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else
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{
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if (xmlFile != nullptr)
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{
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std::cerr << "More than one input file specified: " << *argv << endl;
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usage(std::cerr, programName);
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return 1;
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}
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xmlFile = *argv;
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}
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argc--;
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argv++;
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}
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if (!proxy && !adaptor)
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{
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std::cerr << "Either --proxy or --adapter need to be specified" << endl;
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usage(std::cerr, programName);
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return 1;
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}
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xml::Document doc;
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try
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{
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if (xmlFile != nullptr)
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{
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if (verbose)
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{
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std::cerr << "Reading DBus interface from " << xmlFile << endl;
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}
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std::ifstream input(xmlFile);
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if (input.bad())
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{
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std::cerr << "Unable to open file " << xmlFile << endl;
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return 1;
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}
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input >> doc;
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}
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else
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{
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if (verbose)
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{
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std::cerr << "Reading DBus interface from standard input" << endl;
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}
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std::cin >> doc;
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}
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}
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catch (const xml::Error& e)
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{
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std::cerr << "Parsing error: " << e.what() << endl;
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return 1;
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}
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if (!doc.root)
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{
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std::cerr << "Empty document" << endl;
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return 1;
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}
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if (proxy)
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{
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if (verbose)
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{
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std::cerr << "Generating proxy header " << proxy << endl;
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}
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ProxyGenerator pg;
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pg.transformXmlToFile(doc, proxy);
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}
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if (adaptor)
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{
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if (verbose)
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{
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std::cerr << "Generating adaptor header " << adaptor << endl;
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}
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AdaptorGenerator ag;
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ag.transformXmlToFile(doc, adaptor);
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}
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return 0;
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}
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