/**
* Read the algorithm history from the "mantid_workspace_i/process" group
* @param mtd_entry :: The node for the current workspace
* @param local_workspace :: The workspace to attach the history to
* @throw out_of_range an algorithm history entry doesn't have the excepted number of entries
*/
void LoadNexusProcessed::readAlgorithmHistory(NXEntry & mtd_entry, API::MatrixWorkspace_sptr local_workspace)
{
int exeCount=0;
NXMainClass history = mtd_entry.openNXClass<NXMainClass>("process");
//Group will contain a class for each algorithm, called MantidAlgorithm_i and then an
//environment class
//const std::vector<NXClassInfo> & classes = history.groups();
std::vector<NXClassInfo>& classes = history.groups();
//sort by execution order - to execute the script generated by algorithmhistory in proper order
sort(classes.begin(),classes.end(),UDlesserExecCount);
std::vector<NXClassInfo>::const_iterator iend = classes.end();
for( std::vector<NXClassInfo>::const_iterator itr = classes.begin(); itr != iend; ++itr )
{
if( itr->nxname.find("MantidAlgorithm") != std::string::npos )
{
NXNote entry(history,itr->nxname);
entry.openLocal();
const std::vector<std::string> & info = entry.data();
const size_t nlines = info.size();
if( nlines < 4 )
{// ignore badly formed history entries
continue;
}
std::string algName, dummy, temp;
// get the name and version of the algorithm
getWordsInString(info[NAME], dummy, algName, temp);
//Chop of the v from the version string
size_t numStart = temp.find('v');
// this doesn't abort if the version string doesn't contain a v
numStart = numStart != 1 ? 1 : 0;
temp = std::string(temp.begin() + numStart, temp.end());
const int version = boost::lexical_cast<int>(temp);
//Get the execution date/time
std::string date, time;
getWordsInString(info[EXEC_TIME], dummy, dummy, date, time);
Poco::DateTime start_timedate;
//This is needed by the Poco parsing function
int tzdiff(-1);
if( !Poco::DateTimeParser::tryParse(Mantid::NeXus::g_processed_datetime, date + " " + time, start_timedate, tzdiff))
{
g_log.warning() << "Error parsing start time in algorithm history entry." << "\n";
return;
}
//Get the duration
getWordsInString(info[EXEC_DUR], dummy, dummy, temp, dummy);
double dur = boost::lexical_cast<double>(temp);
if ( dur < 0.0 )
{
g_log.warning() << "Error parsing start time in algorithm history entry." << "\n";
return;
}
//API::AlgorithmHistory alg_hist(algname, version, start_timedate.timestamp().epochTime(), dur);
++exeCount;
//Convert the timestamp to time_t to DateAndTime
Mantid::Kernel::DateAndTime utc_start;
utc_start.set_from_time_t( start_timedate.timestamp().epochTime() );
//Create the algorithm history
API::AlgorithmHistory alg_hist(algName, version, utc_start, dur,exeCount);
//Add property information
for( size_t index = static_cast<size_t>(PARAMS)+1;index < nlines;++index )
{
const std::string line = info[index];
std::string::size_type colon = line.find(":");
std::string::size_type comma = line.find(",");
//Each colon has a space after it
std::string prop_name = line.substr(colon + 2, comma - colon - 2);
colon = line.find(":", comma);
comma = line.find(",", colon);
std::string prop_value = line.substr(colon + 2, comma - colon - 2);
colon = line.find(":", comma);
comma = line.find(",", colon);
std::string is_def = line.substr(colon + 2, comma - colon - 2);
colon = line.find(":", comma);
comma = line.find(",", colon);
std::string direction = line.substr(colon + 2, comma - colon - 2);
unsigned int direc(Mantid::Kernel::Direction::asEnum(direction));
alg_hist.addProperty(prop_name, prop_value, (is_def[0] == 'Y'), direc);
}
local_workspace->history().addHistory(alg_hist);
entry.close();
}
}
}
