void WorkerBinding::CreateWorker(const ValueList& args, SharedValue result)
{
if (args.size()!=2)
{
throw ValueException::FromString("invalid argument specified");
}
bool is_function = args.at(1)->ToBool();
std::string code;
Logger *logger = Logger::Get("Worker");
if (is_function)
{
// convert the function to a string block
code = "(";
code += args.at(0)->ToString();
code += ")()";
}
else
{
// this is a path -- probably should verify that this is relative and not an absolute URL to remote
SharedKMethod appURLToPath = global->GetNS("App.appURLToPath")->ToMethod();
ValueList a;
a.push_back(args.at(0));
SharedValue result = appURLToPath->Call(a);
const char *path = result->ToString();
logger->Debug("worker file path = %s",path);
std::ios::openmode flags = std::ios::in;
Poco::FileInputStream *fis = new Poco::FileInputStream(path,flags);
std::stringstream ostr;
char buf[8096];
int count = 0;
while(!fis->eof())
{
fis->read((char*)&buf,8095);
std::streamsize len = fis->gcount();
if (len>0)
{
buf[len]='\0';
count+=len;
ostr << buf;
}
else break;
}
fis->close();
code = std::string(ostr.str());
}
logger->Debug("Worker script code = %s", code.c_str());
SharedKObject worker = new Worker(host,global,code);
result->SetObject(worker);
}
void FileStream::Ready(const ValueList& args, SharedValue result)
{
Poco::FileInputStream* fis = dynamic_cast<Poco::FileInputStream*>(this->stream);
if(!fis)
{
result->SetBool(false);
}
else
{
result->SetBool(fis->eof()==false);
}
}
void FileStream::Read(const ValueList& args, SharedValue result)
{
if(!this->stream)
{
Logger* logger = Logger::Get("Filesystem.FileStream");
logger->Error("Error in read. FileStream must be opened before calling read");
throw ValueException::FromString("FileStream must be opened before calling read");
}
try
{
std::stringstream ostr;
Poco::FileInputStream* fis = dynamic_cast<Poco::FileInputStream*>(this->stream);
if(!fis)
{
Logger* logger = Logger::Get("Filesystem.FileStream");
logger->Error("Error in read. FileInputStream is null");
throw ValueException::FromString("FileStream must be opened for reading before calling read");
}
char buf[4096];
int count = 0;
while(!fis->eof())
{
fis->read((char*)&buf,4095);
std::streamsize len = fis->gcount();
if (len>0)
{
buf[len]='\0';
count+=len;
ostr << buf;
}
else break;
}
result->SetObject(new Blob(ostr.str().c_str(),count));
}
catch (Poco::Exception& exc)
{
Logger* logger = Logger::Get("Filesystem.FileStream");
logger->Error("Error in read. Exception: %s",exc.displayText().c_str());
throw ValueException::FromString(exc.displayText());
}
}
void FileStream::ReadLine(const ValueList& args, SharedValue result)
{
if(! this->stream)
{
Logger* logger = Logger::Get("Filesystem.FileStream");
logger->Error("Error in readLine. FileStream must be opened before calling read");
throw ValueException::FromString("FileStream must be opened before calling readLine");
}
try
{
Poco::FileInputStream* fis = dynamic_cast<Poco::FileInputStream*>(this->stream);
if(!fis)
{
Logger* logger = Logger::Get("Filesystem.FileStream");
logger->Error("Error in readLine. FileInputStream is null");
throw ValueException::FromString("FileStream must be opened for reading before calling readLine");
}
if(fis->eof())
{
// close the file
result->SetNull();
}
else
{
std::string line;
std::getline(*fis, line);
result->SetObject(new Blob((std::string)line));
}
}
catch (Poco::Exception& exc)
{
Logger* logger = Logger::Get("Filesystem.FileStream");
logger->Error("Error in readLine. Exception: %s",exc.displayText().c_str());
throw ValueException::FromString(exc.displayText());
}
}
