CommandImplementation::CommandImplementation(CommandType &type,
std::unique_ptr<CommandOutputTarget> &&output)
: mType(type),
mParams(type.GetSignature().GetDefaults()),
mOutput(std::move(output))
{
wxASSERT(mOutput);
}
void CommandBuilder::BuildCommand(const wxString &cmdName,
wxString cmdParams)
{
// Stage 1: create a Command object of the right type
CommandMessageTarget *scriptOutput = ScriptCommandRelay::GetResponseTarget();
CommandOutputTarget *output
= new CommandOutputTarget(new NullProgressTarget(),
scriptOutput,
scriptOutput);
CommandType *factory = CommandDirectory::Get()->LookUp(cmdName);
if (factory == NULL)
{
// Fall back to hoping the Batch Command system can handle it
CommandType *type = CommandDirectory::Get()->LookUp(wxT("BatchCommand"));
wxASSERT(type != NULL);
mCommand = type->Create(output);
mCommand->SetParameter(wxT("CommandName"), cmdName);
mCommand->SetParameter(wxT("ParamString"), cmdParams);
Success(new ApplyAndSendResponse(mCommand));
return;
}
CommandSignature &signature = factory->GetSignature();
mCommand = factory->Create(output);
// Stage 2: set the parameters
ShuttleCli shuttle;
shuttle.mParams = cmdParams;
shuttle.mbStoreInClient = true;
ParamValueMap::const_iterator iter;
ParamValueMap params = signature.GetDefaults();
for (iter = params.begin(); iter != params.end(); ++iter)
{
wxString paramString;
if (shuttle.TransferString(iter->first, paramString, wxT("")))
{
if (!mCommand->SetParameter(iter->first, paramString))
{
Failure();
return;
}
}
}
// Check for unrecognised parameters
while (cmdParams != wxEmptyString)
{
cmdParams.Trim(true);
cmdParams.Trim(false);
int splitAt = cmdParams.Find(wxT('='));
if (splitAt < 0 && cmdParams != wxEmptyString)
{
Failure(wxT("Parameter string is missing '='"));
return;
}
wxString paramName = cmdParams.Left(splitAt);
if (params.find(paramName) == params.end())
{
Failure(wxT("Unrecognized parameter: '") + paramName + wxT("'"));
return;
}
cmdParams = cmdParams.Mid(splitAt+1);
splitAt = cmdParams.Find(wxT(' '));
if (splitAt < 0)
{
splitAt = cmdParams.Len();
}
cmdParams = cmdParams.Mid(splitAt);
}
Success(new ApplyAndSendResponse(mCommand));
}