RPCLBLinkNameParser.cc

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#include "CondTools/RPC/interface/RPCLBLinkNameParser.h"

#include <sstream>

#include "FWCore/Utilities/interface/Exception.h"

void RPCLBLinkNameParser::parse(std::string const & name, RPCLBLink & lb_link)
{
    lb_link.reset();
    std::string::size_type size = name.size();
    std::string::size_type pos(0), next(0);
    int tmp;

    std::istringstream conv;

    // region
    pos = name.find("_R", pos);
    if (pos == std::string::npos || (pos += 2) >= size)
        throw cms::Exception("InvalidLinkBoardName") << "Expected _R[region], got " << name;
    switch (name.at(pos)) {
    case 'B': lb_link.setRegion(0); break;
    case 'E': lb_link.setRegion(1); break;
    default:
        throw cms::Exception("InvalidLinkBoardName") << "Expected Region B or E, got " << name.at(pos) << " in " << name;
        break;
    }
    if ((++pos) >= size)
        throw cms::Exception("InvalidLinkBoardName") << "Name too short: " << name;

    // yoke
    next = name.find_first_not_of("+-0123456789", pos);
    conv.clear();
    conv.str(name.substr(pos, next - pos));
    conv >> tmp;
    lb_link.setYoke(tmp);
    pos = next;

    // sector
    pos = name.find("_S", pos);
    if (pos == std::string::npos || (pos += 2) >= size)
        throw cms::Exception("InvalidLinkBoardName") << "Expected _S[sector], got " << name;
    next = name.find_first_not_of("+-0123456789", pos);
    conv.clear();
    conv.str(name.substr(pos, next - pos));
    conv >> tmp;
    lb_link.setSector(tmp);
    pos = next;

    // (region) side
    pos = name.find("_", pos);
    if (pos == std::string::npos || (pos += 2) >= size)
        throw cms::Exception("InvalidLinkBoardName") << "Name too short: " << name;
    switch (name.at(pos)) {
    case 'N': lb_link.setSide(0); break;
    case 'M': lb_link.setSide(1); break;
    case 'P': lb_link.setSide(2); break;
    default:
        throw cms::Exception("InvalidLinkBoardName") << "Expected Side N, M or P, got " << name.at(pos) << " in " << name;
        break;
    }
    if ((++pos) >= size)
        throw cms::Exception("InvalidLinkBoardName") << "Name too short: " << name;

    // wheelordisk
    conv.clear();
    conv.str(name.substr(pos, 1));
    conv >> tmp;
    lb_link.setWheelOrDisk(tmp);
    if ((++pos) >= size)
        throw cms::Exception("InvalidLinkBoardName") << "Name too short: " << name;

    // fibre
    {
        std::string fibre("123ABCDE");
        char const * tmpchar = std::find(&(fibre[0]), &(fibre[0]) + 8, name.at(pos));
        lb_link.setFibre(tmpchar - &(fibre[0]));
    }
    if ((++pos) >= size)
        return;

    // radial
    next = name.find("_CH", pos);
    if (next == std::string::npos)
        next = size;
    if (next - pos == 2) {
        std::string radial = name.substr(pos, 2);
        if (radial == "ab")
            lb_link.setRadial(0);
        else if (radial == "cd")
            lb_link.setRadial(1);
    }

    if (next == size)
        return;

    // linkboard
    pos = next;
    if (pos + 3 >= size)
        throw cms::Exception("InvalidLinkBoardName") << "Name too short: " << name;
    pos += 3;
    next = name.find_first_not_of("+-0123456789", pos);
    conv.clear();
    conv.str(name.substr(pos, next - pos));
    conv >> tmp;
    lb_link.setLinkBoard(tmp);
}


RPCLBLink RPCLBLinkNameParser::parse(std::string const & name)
{
    RPCLBLink lb_link;
    parse(name, lb_link);
    return lb_link;
}