SCNXArchive& SCNXArchiveFactory::getSCNXArchive(const URL &url) throw (InvalidArgumentException) {
if (!(url.isValid())) {
OPENDAVINCI_CORE_THROW_EXCEPTION(InvalidArgumentException, "URL is invalid.");
}
SCNXArchive *scnxArchive = NULL;
// Try to find an existing SCNXArchive in the map using the URL as key.
map<string, SCNXArchive*, core::strings::StringComparator>::iterator it = m_mapOfSCNXArchives.find(url.toString());
if (it != m_mapOfSCNXArchives.end()) {
clog << "Found already constructed data structure." << endl;
scnxArchive = it->second;
}
if (scnxArchive == NULL) {
clog << "Creating new SCNXArchive from " << url.toString() << endl;
string fileName = url.getResource();
fstream fin(fileName.c_str(), ios::binary | ios::in);
core::SharedPointer<core::wrapper::DecompressedData> data = core::wrapper::CompressionFactory::getContents(fin);
fin.close();
if (data.isValid()) {
Scenario scenario;
SharedPointer<istream> stream = data->getInputStreamFor("scenario.scn");
if (stream.isValid()) {
stringstream s;
char c;
while (stream->good()) {
stream->get(c);
s << c;
}
// Trying to parse the input.
scenario = ScenarioFactory::getInstance().getScenario(s.str());
} else {
OPENDAVINCI_CORE_THROW_EXCEPTION(InvalidArgumentException, "Archive from the given URL does not contain a valid SCN file.");
}
// Create SCNXArchive.
scnxArchive = new SCNXArchive(scenario, data);
// Store SCNXArchive for further usage.
// Somehow, there seems to be a bug because the data structure got corrupt...
// m_mapOfSCNXArchives[url.toString()] = scnxArchive;
}
else {
OPENDAVINCI_CORE_THROW_EXCEPTION(InvalidArgumentException, "URL could not be used to read input data.");
}
}
return *scnxArchive;
}
OBJXArchive* OBJXArchiveFactory::getOBJXArchive(istream &in) throw (InvalidArgumentException) {
if (!(in.good())) {
// Try to rewind the stream.
clog << "Trying to rewind the stream." << endl;
in.clear();
in.seekg(ios::beg);
if (!(in.good())) {
OPENDAVINCI_CORE_THROW_EXCEPTION(InvalidArgumentException, "Given inputstream is invalid.");
}
}
OBJXArchive *objxArchive = NULL;
// Use CompressionFactory to read the contents of the OBJXArchive.
SharedPointer<core::wrapper::DecompressedData> data = core::wrapper::CompressionFactory::getContents(in);
if (data.isValid()) {
// Create OBJXArchive.
objxArchive = new OBJXArchive();
vector<string> listOfEntries = data->getListOfEntries();
vector<string>::iterator it = listOfEntries.begin();
while (it != listOfEntries.end()) {
string entry = (*it++);
if (entry.find(".obj") != string::npos) {
// Set object file.
SharedPointer<istream> stream = data->getInputStreamFor(entry);
if (stream.isValid()) {
char c;
stringstream s;
while (stream->good()) {
stream->get(c);
s << c;
}
objxArchive->setContentsOfObjFile(s.str());
}
} else if (entry.find(".mtl") != string::npos) {
// Set material file.
SharedPointer<istream> stream = data->getInputStreamFor(entry);
if (stream.isValid()) {
char c;
stringstream s;
while (stream->good()) {
stream->get(c);
s << c;
}
objxArchive->setContentsOfMtlFile(s.str());
}
} else {
// Try to load an image.
SharedPointer<istream> stream = data->getInputStreamFor(entry);
if (stream.isValid()) {
core::wrapper::Image *image = core::wrapper::ImageFactory::getInstance().getImage(*stream);
if (image != NULL) {
// TODO: Check where origin lies.
image->rotate(static_cast<float>(cartesian::Constants::PI));
// Remove any directory prefixes from the entry.
string name = entry;
if (name.rfind('/') != string::npos) {
name = name.substr(name.rfind('/') + 1);
}
objxArchive->addImage(name, image);
}
}
}
}
}
return objxArchive;
}
