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#include <iostream>
#include <stdexcept>
#include <cstdlib>
#include "xmlrpcType.hpp"
#include "xmlrpcMethod.hpp"
#include "proxyClass.hpp"
#include "systemProxy.hpp"
using namespace std;
/*----------------------------------------------------------------------------
Command line
-----------------------------------------------------------------------------*/
class cmdlineInfo {
public:
string serverUrl;
string methodPrefix;
string localClass;
cmdlineInfo(int const argc,
const char ** const argv);
private:
cmdlineInfo();
};
cmdlineInfo::cmdlineInfo(int const argc,
const char ** const argv) {
if (argc-1 != 3) {
cerr << "There are 3 arguments: server URL, "
<< "prefix for the methods to include (null to include all), "
<< "and name to give the generated proxy class. "
<< "You specified " << argc-1 << " arguments."
<< endl
<< "Example: "
<< "xmlrpc_cpp_proxy http://localhost/RPC2 system systemProxy"
<< endl;
exit(1);
}
this->serverUrl = string(argv[1]);
this->methodPrefix = string(argv[2]);
this->localClass = string(argv[3]);
}
static proxyClass
getClassInfo(string const& serverUrl,
string const& classPrefix,
string const& className) {
/*----------------------------------------------------------------------------
Connect to a remote server and extract the information we'll need to
build a proxy class.
-----------------------------------------------------------------------------*/
proxyClass theClass(className);
systemProxy system;
xmlrpc_c::value_array methods(system.listMethods(serverUrl));
unsigned int arraySize = methods.size();
for (size_t i = 0; i < arraySize; ++i) {
// Break the method name into two pieces.
xmlrpc_c::value_string val = (methods.vectorValueValue())[i];
string const methodName(static_cast<string>(val));
size_t const lastDot(methodName.rfind('.'));
string methodPrefix;
string functionName;
if (lastDot == string::npos) {
methodPrefix = "";
functionName = methodName;
} else {
methodPrefix = string(methodName, 0, lastDot);
functionName = string(methodName, lastDot + 1);
}
if (methodPrefix == classPrefix) {
// It's a method User cares about
string const help(system.methodHelp(serverUrl, methodName));
xmlrpc_c::value const signatureList(
system.methodSignature(serverUrl, methodName));
if (signatureList.type() != xmlrpc_c::value::TYPE_ARRAY) {
// It must be the string "undef", meaning the server
// won't tell us any signatures.
cerr << "Skipping method " << methodName << " "
<< "because server does not report any signatures "
<< "for it (via system.methodSignature method)"
<< endl;
} else {
// Add this function to our class information.
xmlrpcMethod const method(
functionName,
methodName,
help,
xmlrpc_c::value_array(signatureList));
theClass.addFunction(method);
}
}
}
return theClass;
}
static void
printHeader(ostream & out,
proxyClass const& classInfo) {
/*----------------------------------------------------------------------------
Print a complete header for the specified class.
-----------------------------------------------------------------------------*/
string const className(classInfo.className());
try {
out << "// Interface definition for " << className << " class, "
<< "an XML-RPC FOR C/C++ proxy class" << endl;
out << "// Generated by 'xmlrpc_cpp_proxy'" << endl;
out << endl;
string const headerSymbol("_" + className + "_H_");
out << "#ifndef " << headerSymbol << endl;
out << "#define " << headerSymbol << " 1" << endl;
out << endl;
out << "#include <string>" << endl;
out << "#include <xmlrpc-c/client_simple.hpp>" << endl;
out << endl;
classInfo.printDeclaration(cout);
out << endl;
out << "#endif /* " << headerSymbol << " */" << endl;
} catch (exception const& e) {
throw(logic_error("Failed to generate header for class " +
className + ". " + e.what()));
}
}
static void
printCppFile(ostream & out,
proxyClass const& classInfo) {
/*----------------------------------------------------------------------------
Print a complete definition for the specified class.
-----------------------------------------------------------------------------*/
string const className(classInfo.className());
try {
out << "// " << className << " - "
<< "an XML-RPC FOR C/C++ proxy class" << endl;
out << "// Generated by 'xmlrpc_cpp_proxy'" << endl;
out << endl;
out << "#include \"" << className << ".h\"" << endl;
classInfo.printDefinition(cout);
} catch (xmlrpc_c::fault const& f) {
throw(logic_error("Failed to generate definition for class " +
className + ". " + f.getDescription()));
}
}
int
main(int const argc,
const char ** const argv) {
string const myName(argv[0]);
cmdlineInfo const cmdline(argc, argv);
int retval;
try {
proxyClass system(getClassInfo(cmdline.serverUrl,
cmdline.methodPrefix,
cmdline.localClass));
printHeader(cout, system);
cout << endl;
printCppFile(cout, system);
retval = 0;
} catch (xmlrpc_c::fault& f) {
cerr << myName << ": XML-RPC fault #" << f.getCode()
<< ": " << f.getDescription() << endl;
retval = 1;
} catch (exception const& e) {
cerr << myName << ": " << e.what() << endl;
retval = 1;
} catch (...) {
cerr << myName << ": Unknown exception" << endl;
retval = 1;
}
return retval;
}
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