size_t BasicHDT::loadMMap(unsigned char *ptr, unsigned char *ptrMax, ProgressListener *listener) {
size_t count=0;
ControlInformation controlInformation;
IntermediateListener iListener(listener);
// Load Global ControlInformation
count+=controlInformation.load(&ptr[count], ptrMax);
std::string hdtFormat = controlInformation.getFormat();
if(hdtFormat!=HDTVocabulary::HDT_CONTAINER) {
throw "This software cannot open this version of HDT File.";
}
// Load Header
iListener.setRange(0,5);
controlInformation.load(&ptr[count], ptrMax);
delete header;
header = HDTFactory::readHeader(controlInformation);
count+= header->load(&ptr[count], ptrMax, &iListener);
// Load dictionary
iListener.setRange(5, 60);
controlInformation.load(&ptr[count], ptrMax);
delete dictionary;
dictionary = HDTFactory::readDictionary(controlInformation);
count += dictionary->load(&ptr[count], ptrMax, &iListener);
// Load triples
iListener.setRange(60,100);
controlInformation.load(&ptr[count], ptrMax);
delete triples;
triples = HDTFactory::readTriples(controlInformation);
count += triples->load(&ptr[count], ptrMax, &iListener);
return count;
}
void PlainTriples::load(std::istream &input, ControlInformation &controlInformation, ProgressListener *listener)
{
std::string format = controlInformation.getFormat();
if(format!=getType()) {
throw std::runtime_error("Trying to read PlainTriples but the data is not PlainTriples");
}
//unsigned int numTriples = controlInformation.getUint("numTriples");
order = (TripleComponentOrder) controlInformation.getUint("order");
IntermediateListener iListener(listener);
iListener.setRange(0,33);
iListener.notifyProgress(0, "PlainTriples loading subjects");
delete streamX;
streamX = IntSequence::getArray(input);
streamX->load(input);
iListener.setRange(33, 66);
iListener.notifyProgress(0, "PlainTriples loading predicates");
delete streamY;
streamY = IntSequence::getArray(input);
streamY->load(input);
iListener.setRange(66, 100);
iListener.notifyProgress(0, "PlainTriples loading objects");
delete streamZ;
streamZ = IntSequence::getArray(input);
streamZ->load(input);
}
size_t PlainHeader::load(unsigned char *ptr, unsigned char *ptrMax, ProgressListener *listener)
{
size_t count = 0;
// Read ControlInformation
ControlInformation controlInformation;
count += controlInformation.load(&ptr[count], ptrMax);
std::string format = controlInformation.getFormat();
uint32_t headerSize = controlInformation.getUint("length");
// FIXME: Use format to create custom parser.
if(format!=HDTVocabulary::HEADER_NTRIPLES) {
throw "This Header format is not supported";
}
string str(&ptr[count], &ptr[count+headerSize]);
// Convert into a stringstream
stringstream strstream(str, stringstream::in);
triples.clear();
// Parse header
RDFParserNtriples parser(strstream, NTRIPLES);
while(parser.hasNext()) {
TripleString *ts = parser.next();
triples.push_back(*ts);
}
count+=headerSize;
return count;
}
void PlainHeader::load(std::istream & input, ControlInformation &controlInformation, ProgressListener *listener)
{
std::string format = controlInformation.getFormat();
uint32_t headerSize = controlInformation.getUint("length");
// FIXME: Use format to create custom parser.
if(format!=HDTVocabulary::HEADER_NTRIPLES) {
throw "This Header format is not supported";
}
// Read all header into a string
string str(headerSize,'\0');
input.read(&str[0], headerSize);
if(input.gcount()!=headerSize) {
throw "Error reading header";
}
// Convert into a stringstream
stringstream strstream(str, stringstream::in);
triples.clear();
// Parse header
RDFParserNtriples parser(strstream, NTRIPLES);
while(parser.hasNext()) {
TripleString *ts = parser.next();
triples.push_back(*ts);
}
}
void FourSectionDictionary::load(std::istream & input, ControlInformation & ci, ProgressListener *listener)
{
std::string format = ci.getFormat();
if(format!=getType()) {
throw std::runtime_error("Trying to read a FourSectionDictionary but the data is not FourSectionDictionary");
}
//this->mapping = ci.getUint("mapping");
this->mapping = MAPPING2;
this->sizeStrings = ci.getUint("sizeStrings");
IntermediateListener iListener(listener);
iListener.setRange(0,25);
iListener.notifyProgress(0, "Dictionary read shared area.");
delete shared;
shared = csd::CSD::load(input);
if(shared==NULL){
shared = new csd::CSD_PFC();
throw std::runtime_error("Could not read shared.");
}
//shared = new csd::CSD_Cache(shared);
iListener.setRange(25,50);
iListener.notifyProgress(0, "Dictionary read subjects.");
delete subjects;
subjects = csd::CSD::load(input);
if(subjects==NULL){
subjects = new csd::CSD_PFC();
throw std::runtime_error("Could not read subjects.");
}
//subjects = new csd::CSD_Cache(subjects);
iListener.setRange(50,75);
iListener.notifyProgress(0, "Dictionary read predicates.");
delete predicates;
predicates = csd::CSD::load(input);
if(predicates==NULL){
predicates = new csd::CSD_PFC();
throw std::runtime_error("Could not read predicates.");
}
predicates = new csd::CSD_Cache2(predicates);
iListener.setRange(75,100);
iListener.notifyProgress(0, "Dictionary read objects.");
delete objects;
objects = csd::CSD::load(input);
if(objects==NULL){
objects = new csd::CSD_PFC();
throw std::runtime_error("Could not read objects.");
}
//objects = new csd::CSD_Cache(objects);
}
void TripleListDisk::load(std::istream & input, ControlInformation &controlInformation, ProgressListener *listener)
{
// FIXME: Read controlInformation
std::string format = controlInformation.getFormat();
if(format!=getType()) {
throw "Trying to read a FourSectionDictionary but the data is not FourSectionDictionary";
}
this->ensureSize(numTotalTriples);
unsigned int numRead=0;
while(input.good() && numRead<numTotalTriples) {
input.read((char *)&arrayTriples[numRead], sizeof(TripleID));
numRead++;
}
cout << "Succesfully read triples: " << numRead << endl;
}
void BasicHDT::loadFromHDT(std::istream & input, ProgressListener *listener)
{
try {
ControlInformation controlInformation;
IntermediateListener iListener(listener);
// Load Global ControlInformation.
controlInformation.load(input);
std::string hdtFormat = controlInformation.getFormat();
if(hdtFormat!=HDTVocabulary::HDT_CONTAINER) {
throw "This software cannot open this version of HDT File.";
}
// Load header
iListener.setRange(0,5);
controlInformation.load(input);
delete header;
header = HDTFactory::readHeader(controlInformation);
header->load(input, controlInformation, &iListener);
//Load Dictionary.
iListener.setRange(5, 60);
controlInformation.load(input);
delete dictionary;
dictionary = HDTFactory::readDictionary(controlInformation);
dictionary->load(input, controlInformation, &iListener);
// Load Triples
iListener.setRange(60,100);
controlInformation.load(input);
delete triples;
triples = HDTFactory::readTriples(controlInformation);
triples->load(input, controlInformation, &iListener);
} catch (const char *ex) {
cout << "Exception loading HDT: " << ex;
deleteComponents();
createComponents();
throw ex;
} catch (char *ex) {
cout << "Exception loading HDT: " << ex;
deleteComponents();
createComponents();
throw ex;
}
}
void PlainDictionary::load(std::istream & input, ControlInformation &ci, ProgressListener *listener)
{
std::string line;
unsigned char region = 1;
startProcessing();
std::string format = ci.getFormat();
if(format!=getType()) {
throw "Trying to read a PlainDictionary but the data is not PlainDictionary";
}
this->mapping = ci.getUint("mapping");
this->sizeStrings = ci.getUint("sizeStrings");
unsigned int numElements = ci.getUint("numEntries");
unsigned int numLine = 0;
IntermediateListener iListener(listener);
iListener.setRange(0,25);
while(region<5 && getline(input, line,'\1')) {
//std::cout << line << std::endl;
if(line!="") {
if (region == 1) { //shared SO
NOTIFYCOND(&iListener, "Dictionary loading shared area.", numLine, numElements);
insert(line, SHARED_SUBJECT);
} else if (region == 2) { //not shared Subjects
NOTIFYCOND(&iListener, "Dictionary loading subjects.", numLine, numElements);
insert(line, NOT_SHARED_SUBJECT);
NOTIFYCOND(&iListener, "Dictionary loading objects.", numLine, numElements);
} else if (region == 3) { //not shared Objects
insert(line, NOT_SHARED_OBJECT);
NOTIFYCOND(&iListener, "Dictionary loading predicates.", numLine, numElements);
} else if (region == 4) { //predicates
insert(line, NOT_SHARED_PREDICATE);
}
} else {
region++;
}
numLine++;
}
// No stopProcessing() Needed. Dictionary already split and sorted in file.
updateIDs();
}
void CompactTriples::load(std::istream &input, ControlInformation &controlInformation, ProgressListener *listener)
{
std::string format = controlInformation.getFormat();
if(format != HDTVocabulary::TRIPLES_TYPE_COMPACT) {
throw "Trying to read CompactTriples but data is not CompactTriples";
}
numTriples = controlInformation.getUint("numTriples");
order = (TripleComponentOrder) controlInformation.getUint("order");
IntermediateListener iListener(listener);
iListener.setRange(0,30);
iListener.notifyProgress(0, "CompactTriples loading Stream Y");
delete streamY;
streamY = IntSequence::getArray(input);
streamY->load(input);
iListener.setRange(30,100);
iListener.notifyProgress(0, "CompactTriples saving Stream Y");
delete streamZ;
streamZ = IntSequence::getArray(input);
streamZ->load(input);
}
