/**
* @function readXml
*/
bool DartLoader::readFileToString(
const common::ResourceRetrieverPtr& _resourceRetriever,
const common::Uri& _uri,
std::string &_output)
{
const common::ResourcePtr resource = _resourceRetriever->retrieve(_uri);
if (!resource)
return false;
// Safe because std::string is guaranteed to be contiguous in C++11.
const size_t size = resource->getSize();
_output.resize(size);
resource->read(&_output.front(), size, 1);
return true;
}
void openXMLFile(
tinyxml2::XMLDocument& doc, const char* const filename,
const common::ResourceRetrieverPtr& _retriever)
{
common::ResourceRetrieverPtr retriever;
if(_retriever)
retriever = _retriever;
else
retriever = std::make_shared<common::LocalResourceRetriever>();
const common::ResourcePtr resource = retriever->retrieve(filename);
if(!resource)
{
dtwarn << "[openXMLFile] Failed opening URI '"
<< filename << "'.\n";
throw std::runtime_error("Failed opening URI.");
}
// C++11 guarantees that std::string has contiguous storage.
const size_t size = resource->getSize();
std::string content;
content.resize(size);
if(resource->read(&content.front(), size, 1) != 1)
{
dtwarn << "[openXMLFile] Failed reading from URI '"
<< filename << "'.\n";
throw std::runtime_error("Failed reading from URI.");
}
int const result = doc.Parse(&content.front());
if(result != tinyxml2::XML_SUCCESS)
{
dtwarn << "[openXMLFile] Failed parsing XML: TinyXML2 returned error"
" code " << result << ".\n";
throw std::runtime_error("Failed parsing XML.");
}
}