TrigConfJobOptionsSvc.cxx

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
#include "TrigConfJobOptionsSvc.h"
#include "TrigConfSvcHelper.h"
 
#include "GaudiKernel/IProperty.h"
#include "Gaudi/Property.h"
 
#include "TrigConfIO/TrigDBJobOptionsLoader.h"
#include "TrigConfData/DataStructure.h"
 
#include <nlohmann/json.hpp>
 
#include <fstream>
#include <format>
 
 
namespace {
  void trim_inplace(std::string& s) {
      auto start = std::find_if_not(s.begin(), s.end(), ::isspace);
      auto end = std::find_if_not(s.rbegin(), s.rend(), ::isspace).base();
      s = (start < end) ? std::string(start, end) : "";
  }
}
 
TrigConf::JobOptionsSvc::JobOptionsSvc(const std::string& name, ISvcLocator* pSvcLocator) :
  base_class(name, pSvcLocator),
  m_optsvc("JobOptionsSvc/TrigConfWrapped_JobOptionsSvc", name)
{}
 
StatusCode TrigConf::JobOptionsSvc::initialize()
{
  ATH_MSG_INFO("Initializing TrigConf::JobOptionsSvc");
 
  // Configure the wrapped JobOptionsSvc
  ATH_CHECK(m_optsvc.retrieve());
  m_optsvc->set( m_optsvc.name() + ".TYPE", "NONE" );
 
  if (m_sourceType == "FILE") {
    ATH_MSG_INFO("Reading joboptions from " << m_sourcePath.value());
    ATH_CHECK(readOptionsJson(m_sourcePath));
  }
  else if (m_sourceType == "DB") {
    parseDBString(m_sourcePath);
    ATH_MSG_INFO("Reading SMK " << m_smk << " from '" << m_server << "'");
    ATH_CHECK(readOptionsDB(m_server, m_smk));
  }
  else if (m_sourceType == "PYTHON") {
    /* "PYTHON" refers to loading properties directly from Python files
       which we do not use in ATLAS. Configuration via athena.py is of
       course supported by the default "NONE" mode. */
    ATH_MSG_ERROR("Not supported " << m_sourceType);
    return StatusCode::FAILURE;
  }
 
  return StatusCode::SUCCESS;
}
 
void TrigConf::JobOptionsSvc::parseDBString(const std::string& s)
{
  std::string key, val;
  std::istringstream iss(s);
  while (std::getline(std::getline(iss, key, '='), val, ';')) {
    trim_inplace(key);
    trim_inplace(val);
    if (key == "smkey")
      m_smk = std::stoi(val);
    else if (key == "server")
      m_server = val;
    else if (key == "lvl1key")
      m_l1psk = std::stoi(val);
    else if (key == "hltkey")
      m_hltpsk = std::stoi(val);
  }
}
 
StatusCode TrigConf::JobOptionsSvc::start()
{
  // Dump job options to JSON file if configured (for debugging only!)
  if (!m_dump.empty()) {
    ATH_MSG_INFO("Writing job options to " << m_dump.value());
    dumpOptions(m_dump).ignore();
  }
  return StatusCode::SUCCESS;
}
 
StatusCode TrigConf::JobOptionsSvc::readOptionsJson(const std::string& file)
{
  std::ifstream f(file);
  if (!f) {
    ATH_MSG_ERROR("Cannot open file " << file);
    return StatusCode::FAILURE;
  }
 
  nlohmann::json json;
  f >> json;
 
  for (const auto& [client, props] : json["properties"].items()) {
    for (const auto& [name, value] : props.items()) {
      set(client + "." + name, value.get<std::string>());
    }
  }
 
  return StatusCode::SUCCESS;
}
 
StatusCode TrigConf::JobOptionsSvc::readOptionsDB(const std::string& db_server, int smk)
{
  // db job options loader
  TrigConf::TrigDBJobOptionsLoader jodbloader(db_server);
  std::string crest_server("");
  std::string crest_api("");
  std::string dbname("");
  if(isCrestConnection(db_server, crest_server, crest_api, dbname)) {
    jodbloader.setCrestTrigDB(dbname);
    jodbloader.setCrestConnection(crest_server, crest_api);
  }
 
  TrigConf::DataStructure jo;
  jodbloader.loadJobOptions( smk, jo );
  if (jo) {
    unsigned int nClients(0), nProps(0);
    TrigConf::DataStructure ds = jo.getObject("properties");
    for( const auto & client : ds.data()) {
      nClients++;
      for( const auto & property : client.second ) {
        nProps++;
        set(client.first + "." + property.first, property.second.data());
      }
    }
    ATH_MSG_INFO("Loaded job options from " << nClients << " clients with " << nProps << " in total");
  } else {
    ATH_MSG_FATAL("Could not load job options from database " << db_server << " with SMK " << smk);
    return StatusCode::FAILURE;
  }
  return StatusCode::SUCCESS;
}
 
 
StatusCode TrigConf::JobOptionsSvc::dumpOptions(const std::string& file)
{
  // JSON filetype identifier
  nlohmann::json json_file;
  json_file["filetype"] = "joboptions";
 
  // Properties
  auto& json = json_file["properties"] = {};
  for (const auto& [name, value] : items()) {
    const size_t idot = name.rfind('.');
    const std::string client = name.substr(0, idot);
    const std::string propname = name.substr(idot+1);
    json[client][propname] = value;
  }
 
  // Write JSON to file
  std::ofstream o(file);
  if (!o) {
    ATH_MSG_ERROR("Cannot write to file " << file);
    return StatusCode::FAILURE;
  }
  o << std::setw(4) << json_file << std::endl;
 
  return StatusCode::SUCCESS;
}