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#include <FileBlob.h>
Public Member Functions | |
| FileBlob () | |
| FileBlob (const std::string &fname, bool zip) | |
| constructor from file to read | |
| FileBlob (std::istream &is, bool zip) | |
| constructor from stream to read | |
| std::vector< unsigned char > * | getUncompressedBlob () const |
| i didn't want to do two copies ... hope this works. | |
| void | getUncompressedBlob (std::vector< unsigned char > &myblobcopy) const |
| bool | isCompressed () const |
| void | read (const std::string &) |
| read from real file | |
| void | read (std::istream &) |
| read from istream | |
| int | size () const |
| void | write (std::ostream &) const |
| write to ostream | |
| void | write (const std::string &) const |
| write to real file | |
| ~FileBlob () | |
Static Private Member Functions | |
| static unsigned int | computeFileSize (const std::string &) |
| static unsigned int | computeStreamSize (std::istream &) |
Private Attributes | |
| std::vector< unsigned char > | blob |
| bool | compressed |
| unsigned int | isize |
Definition at line 8 of file FileBlob.h.
| FileBlob::FileBlob | ( | ) | [inline] |
Definition at line 11 of file FileBlob.h.
{};
| FileBlob::FileBlob | ( | const std::string & | fname, |
| bool | zip | ||
| ) |
constructor from file to read
Definition at line 9 of file FileBlob.cc.
References blob, compressed, computeFileSize(), isize, and read().
:isize(0){ compressed = zip; /* std::cout << "isize = " << isize << " zip = " << (zip? "true" : "false") << std::endl; */ if (isize==0) isize= computeFileSize(fname); // std::cout << "isize = " << isize << std::endl; blob.reserve(isize); read(fname); }
| FileBlob::FileBlob | ( | std::istream & | is, |
| bool | zip | ||
| ) |
constructor from stream to read
Definition at line 21 of file FileBlob.cc.
References blob, compressed, computeStreamSize(), isize, and read().
:isize(0) { compressed = zip; if (isize==0) isize= computeStreamSize(is); blob.reserve(isize); read(is); }
| FileBlob::~FileBlob | ( | ) | [inline] |
Definition at line 17 of file FileBlob.h.
{};
| unsigned int FileBlob::computeFileSize | ( | const std::string & | fname | ) | [static, private] |
Definition at line 123 of file FileBlob.cc.
References computeStreamSize(), and indexGen::ifile.
Referenced by FileBlob().
{
unsigned int is=0;
std::ifstream ifile(fname.c_str());
if (!ifile) { edm::LogError("FileBlob")<< "file " << fname << " does not exist...";}
else is = computeStreamSize(ifile);
ifile.close();
return is;
}
| unsigned int FileBlob::computeStreamSize | ( | std::istream & | is | ) | [static, private] |
Definition at line 132 of file FileBlob.cc.
References trackerHits::c.
Referenced by computeFileSize(), and FileBlob().
{
unsigned int rs=0;
char c;
while (is.get(c)) rs++;
is.clear();
is.seekg(0);
return rs;
}
| void FileBlob::getUncompressedBlob | ( | std::vector< unsigned char > & | myblobcopy | ) | const |
Definition at line 93 of file FileBlob.cc.
References blob, compressed, and isize.
{
if(compressed)
{
myblobcopy.reserve(isize);
uLongf destLen = isize;
int zerr = uncompress(&*myblobcopy.begin(), &destLen,
&*blob.begin(), blob.size());
if (zerr!=0 || myblobcopy.size()!=destLen)
edm::LogError("FileBlob")<< "uncompressing error " << zerr
<< " original size was " << isize
<< " new size is " << destLen;
}else{
myblobcopy = blob;
}
}
| std::vector< unsigned char > * FileBlob::getUncompressedBlob | ( | ) | const |
i didn't want to do two copies ... hope this works.
Definition at line 74 of file FileBlob.cc.
References blob, compressed, and isize.
{
std::vector<unsigned char>* newblob;
if(compressed)
{
newblob = new std::vector<unsigned char>(isize);
uLongf destLen = newblob->size();
// std::cout<<"Store isize = "<<isize<<"; newblob->size() = "<<newblob->size()<<"; destLen = "<<destLen<<std::endl;
int zerr = uncompress(&*(newblob->begin()), &destLen,
&*blob.begin(), blob.size());
if (zerr!=0 || newblob->size()!=destLen)
edm::LogError("FileBlob")<< "uncompressing error " << zerr
<< " original size was " << isize
<< " new size is " << destLen;
}else{
newblob = new std::vector<unsigned char>(blob);
}
return newblob;
}
| bool FileBlob::isCompressed | ( | ) | const [inline] |
| void FileBlob::read | ( | const std::string & | fname | ) |
read from real file
Definition at line 110 of file FileBlob.cc.
References indexGen::ifile.
Referenced by FileBlob().
| void FileBlob::read | ( | std::istream & | is | ) |
read from istream
Definition at line 28 of file FileBlob.cc.
References blob, trackerHits::c, compressed, recoMuon::in, and isize.
{
if(compressed){
std::vector<unsigned char> in;
in.reserve(isize);
char c;
while (is.get(c))
in.push_back((unsigned char)c);
/*
for(int i=0;i<in.size();i++){
std::cout<<in[i];
}
std::cout<<std::endl;
*/
blob.resize(isize);
uLongf destLen = compressBound(in.size());
int zerr = compress2(&*blob.begin(), &destLen,
&*in.begin(), in.size(),
9);
if (zerr!=0) edm::LogError("FileBlob")<< "Compression error " << zerr;
blob.resize(destLen);
}else{
//std::cout << "reading uncompressed" << std::endl;
char c;
while (is.get(c))
blob.push_back( (unsigned char)c);
blob.resize(blob.size());
isize=blob.size();
}
}
| int FileBlob::size | ( | void | ) | const [inline] |
Definition at line 31 of file FileBlob.h.
References isize.
Referenced by popcon::DQMXMLFileSourceHandler::getNewObjects(), and popcon::DQMReferenceHistogramRootFileSourceHandler::getNewObjects().
{return isize;};
| void FileBlob::write | ( | const std::string & | fname | ) | const |
| void FileBlob::write | ( | std::ostream & | os | ) | const |
write to ostream
Definition at line 58 of file FileBlob.cc.
References blob, compressed, isize, and dbtoconf::out.
{
if(compressed){
std::vector<unsigned char> out(isize);
uLongf destLen = out.size();
int zerr = uncompress(&*out.begin(), &destLen,
&*blob.begin(), blob.size());
if (zerr!=0 || out.size()!=destLen)
edm::LogError("FileBlob")<< "uncompressing error " << zerr
<< " original size was " << isize
<< " new size is " << destLen;
os.write((const char *)(&*out.begin()),out.size());
}else{
os.write((char *)&*blob.begin(),blob.size());
}
}
std::vector<unsigned char> FileBlob::blob [private] |
Definition at line 40 of file FileBlob.h.
Referenced by FileBlob(), getUncompressedBlob(), read(), and write().
bool FileBlob::compressed [private] |
Definition at line 41 of file FileBlob.h.
Referenced by FileBlob(), getUncompressedBlob(), isCompressed(), read(), and write().
unsigned int FileBlob::isize [private] |
Definition at line 42 of file FileBlob.h.
Referenced by FileBlob(), getUncompressedBlob(), read(), size(), and write().
1.7.3