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#include <iostream>
#include <sstream>
#include <stdexcept>
#include "xmlrpc-c/oldcppwrapper.hpp"
#include "DataType.hpp"
#include "XmlRpcFunction.hpp"
using namespace std;
XmlRpcFunction::XmlRpcFunction(string const& functionName,
string const& methodName,
string const& help,
XmlRpcValue const signatureList) :
mFunctionName(functionName),
mMethodName(methodName),
mHelp(help),
mSynopsis(signatureList) {}
XmlRpcFunction::XmlRpcFunction(XmlRpcFunction const& f) :
mFunctionName(f.mFunctionName),
mMethodName(f.mMethodName),
mHelp(f.mHelp),
mSynopsis(f.mSynopsis) {}
XmlRpcFunction&
XmlRpcFunction::operator= (XmlRpcFunction const& f) {
if (this != &f) {
this->mFunctionName = f.mFunctionName;
this->mMethodName = f.mMethodName;
this->mHelp = f.mHelp;
this->mSynopsis = f.mSynopsis;
}
return *this;
}
void
XmlRpcFunction::printDeclarations(ostream & out) const {
try {
// Print the method help as a comment
out << endl << " /* " << mHelp << " */" << endl;
size_t end;
try {
end = mSynopsis.arraySize();
} catch (XmlRpcFault const& fault) {
throw(logic_error("Failed to get size of signature array for "
"method " + this->mFunctionName + ". " +
fault.getFaultString()));
}
// Print the declarations for all the signatures of this
// XML-RPC method.
for (size_t i = 0; i < end; ++i)
printDeclaration(out, i);
} catch (exception const& e) {
throw(logic_error("Failed to generate declarations for method " +
this->mFunctionName + ". " + e.what()));
}
}
void
XmlRpcFunction::printDefinitions(ostream & out,
string const& className) const {
try {
size_t const end(mSynopsis.arraySize());
for (size_t i = 0; i < end; ++i) {
out << endl;
printDefinition(out, className, i);
}
} catch (XmlRpcFault const& fault) {
throw(logic_error("Failed to generate definitions for class " +
this->mFunctionName + ". " +
fault.getFaultString()));
}
}
void
XmlRpcFunction::printParameters(ostream & out,
size_t const synopsisIndex) const {
/*----------------------------------------------------------------------------
Print the parameter declarations.
-----------------------------------------------------------------------------*/
size_t const end(parameterCount(synopsisIndex));
bool first;
first = true;
for (size_t i = 0; i < end; ++i) {
if (!first)
out << ", ";
DataType const& ptype(parameterType(synopsisIndex, i));
string const basename(ptype.defaultParameterBaseName(i + 1));
out << ptype.parameterFragment(basename);
first = false;
}
}
void
XmlRpcFunction::printDeclaration(ostream & out,
size_t const synopsisIndex) const {
try {
DataType const& rtype(returnType(synopsisIndex));
out << " " << rtype.returnTypeFragment() << " "
<< mFunctionName << " (";
printParameters(out, synopsisIndex);
out << ");" << endl;
} catch (XmlRpcFault const& fault) {
ostringstream msg;
msg << "Failed to generate header for signature "
<< synopsisIndex
<< " . "
<< fault.getFaultString();
throw(logic_error(msg.str()));
}
}
void
XmlRpcFunction::printDefinition(ostream & out,
string const& className,
size_t const synopsisIndex) const {
DataType const& rtype(returnType(synopsisIndex));
out << rtype.returnTypeFragment() << " "
<< className << "::" << mFunctionName << " (";
printParameters(out, synopsisIndex);
out << ") {" << endl;
out << " XmlRpcValue params(XmlRpcValue::makeArray());" << endl;
/* Emit code to convert the parameters into an array of XML-RPC objects. */
size_t const end(parameterCount(synopsisIndex));
for (size_t i = 0; i < end; ++i) {
DataType const& ptype(parameterType(synopsisIndex, i));
string const basename(ptype.defaultParameterBaseName(i + 1));
out << " params.arrayAppendItem("
<< ptype.inputConversionFragment(basename) << ");" << endl;
}
/* Emit the function call.*/
out << " XmlRpcValue result(this->mClient.call(\""
<< mMethodName << "\", params));" << endl;
/* Emit the return statement. */
out << " return " << rtype.outputConversionFragment("result")
<< ";" << endl;
out << "}" << endl;
}
const DataType&
XmlRpcFunction::returnType(size_t const synopsisIndex) const {
XmlRpcValue const funcSynop(mSynopsis.arrayGetItem(synopsisIndex));
return findDataType(funcSynop.arrayGetItem(0).getString());
}
size_t
XmlRpcFunction::parameterCount(size_t const synopsisIndex) const {
XmlRpcValue const funcSynop(mSynopsis.arrayGetItem(synopsisIndex));
size_t const size(funcSynop.arraySize());
if (size < 1)
throw domain_error("Synopsis contained no items");
return size - 1;
}
DataType const&
XmlRpcFunction::parameterType(size_t const synopsisIndex,
size_t const parameterIndex) const {
XmlRpcValue const funcSynop(mSynopsis.arrayGetItem(synopsisIndex));
XmlRpcValue const param(funcSynop.arrayGetItem(parameterIndex + 1));
return findDataType(param.getString());
}
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