std::streambuf::int_type File_buffer::underflow()
{
try {
if (gptr() < egptr()) { //buffer not exhausted
return traits_type::to_int_type(*gptr());
}
char *base = &buffer_.front();
char *start = base;
if (eback() == base) { // true when this isn't the first fill
// Make arrangements for putback characters
std::memmove(base, egptr() - put_back_, put_back_);
start += put_back_;
}
// start is now the start of the buffer, proper.
// Read from fptr_ in to the provided buffer
CF::OctetSequence_var data;
if (!CORBA::is_nil(fptr_) && (!fptr_->_non_existent())) {
fptr_->read(data, buffer_.size() - (start - base));
} else {
return traits_type::eof();
}
if (data->length() == 0) {
return traits_type::eof();
}
memcpy(start, (const char*)data->get_buffer(), data->length());
// Set buffer pointers
setg(base, start, start + data->length());
return traits_type::to_int_type(*gptr());
} catch (...) {
return traits_type::eof();
}
}
static std::string getLogConfig(std::string uri)
{
std::string localPath;
std::string::size_type fsPos = uri.find("?fs=");
if (std::string::npos == fsPos) {
return localPath;
}
std::string IOR = uri.substr(fsPos + 4);
CORBA::Object_var obj = ossie::corba::stringToObject(IOR);
if (CORBA::is_nil(obj)) {
return localPath;
}
CF::FileSystem_var fileSystem = CF::FileSystem::_narrow(obj);
if (CORBA::is_nil(fileSystem)) {
return localPath;
}
std::string remotePath = uri.substr(0, fsPos);
CF::OctetSequence_var data;
try {
CF::File_var remoteFile = fileSystem->open(remotePath.c_str(), true);
CORBA::ULong size = remoteFile->sizeOf();
remoteFile->read(data, size);
} catch (...) {
return localPath;
}
std::string tempPath = remotePath;
std::string::size_type slashPos = remotePath.find_last_of('/');
if (std::string::npos != slashPos) {
tempPath.erase(0, slashPos + 1);
}
std::fstream localFile(tempPath.c_str(), std::ios::out|std::ios::trunc);
if (!localFile) {
return localPath;
}
if (localFile.write((const char*)data->get_buffer(), data->length())) {
localPath = tempPath;
}
localFile.close();
return localPath;
}