Geners/src/ItemLocation.cc

0001 #include "Alignment/Geners/interface/IOException.hh"
0002 #include "Alignment/Geners/interface/ItemLocation.hh"
0003 #include "Alignment/Geners/interface/streamposIO.hh"
0004
0005 namespace gs {
0006   bool ItemLocation::operator==(const ItemLocation &r) const {
0007     if (pos_ != r.pos_)
0008       return false;
0009     if (URI_ != r.URI_)
0010       return false;
0011     // If global URI does not exist, local URI must coincide exactly.
0012     // If global URI exists, local URI may or may not be defined.
0013     if (!URI_.empty()) {
0014       if (!cachedItemURI_.empty() && !r.cachedItemURI_.empty())
0015         if (cachedItemURI_ != r.cachedItemURI_)
0016           return false;
0017     } else if (cachedItemURI_ != r.cachedItemURI_)
0018       return false;
0019     return true;
0020   }
0021
0022   bool ItemLocation::write(std::ostream &of) const {
0023     // The code for storing the stream offset is necessarily
0024     // going to be implementation-dependent. The C++ standard
0025     // does not specify std::streampos with enough detail.
0026     write_pod(of, pos_);
0027     write_pod(of, URI_);
0028     write_pod(of, cachedItemURI_);
0029     return !of.fail();
0030   }
0031
0032   ItemLocation *ItemLocation::read(const ClassId &id, std::istream &in) {
0033     static const ClassId current(ClassId::makeId<ItemLocation>());
0034     current.ensureSameId(id);
0035
0036     std::streampos pos;
0037     read_pod(in, &pos);
0038
0039     std::string globURI;
0040     read_pod(in, &globURI);
0041
0042     std::string cachedItemURI;
0043     read_pod(in, &cachedItemURI);
0044
0045     if (in.fail())
0046       throw IOReadFailure("In ItemLocation::read: input stream failure");
0047
0048     return new ItemLocation(pos, globURI.c_str(), cachedItemURI.c_str());
0049   }
0050 }  // namespace gs