PropertyAlg.cpp

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/***********************************************************************************\
* (c) Copyright 1998-2024 CERN for the benefit of the LHCb and ATLAS collaborations *
*                                                                                   *
* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
*                                                                                   *
* In applying this licence, CERN does not waive the privileges and immunities       *
* granted to it by virtue of its status as an Intergovernmental Organization        *
* or submit itself to any jurisdiction.                                             *
\***********************************************************************************/
// Include files
#include <GaudiKernel/DataObject.h>
#include <GaudiKernel/IChronoStatSvc.h>
#include <GaudiKernel/IDataProviderSvc.h>
#include <GaudiKernel/MsgStream.h>
#include <GaudiKernel/SmartIF.h>
#include <sstream>
 
#include <GaudiKernel/SerializeSTL.h>
 
#include "PropertyAlg.h"
 
namespace {
  // idea coming from The art of computer programming by Knuth
  constexpr bool essentiallyEqual( double const a, double const b ) {
    return std::abs( a - b ) <= std::min( std::abs( a ), std::abs( b ) ) * std::numeric_limits<double>::epsilon();
  }
} // namespace
 
// Read Handler
//------------------------------------------------------------------------------
void PropertyAlg::readHandler( Gaudi::Details::PropertyBase& p ) {
  // do not print messages if we are created in genconf
  const std::string cmd = System::cmdLineArgs()[0];
  if ( cmd.find( "genconf" ) != std::string::npos ) return;
 
  info() << "Read handler called for property: " << p << endmsg;
}
 
// Update Handler
//------------------------------------------------------------------------------
void PropertyAlg::updateHandler( Gaudi::Details::PropertyBase& p ) {
  // avoid the readHandler (which writes to the _same_ MsgStream!) from writing
  // something in the middle of the printout of this message...
  std::ostringstream os;
  os << p;
  info() << "Update handler called for property: " << os.str() << endmsg;
}
 
// Constructor
//------------------------------------------------------------------------------
PropertyAlg::PropertyAlg( const std::string& name, ISvcLocator* ploc ) : Algorithm( name, ploc ) {
  //------------------------------------------------------------------------------
  // Associate read and update handlers
 
  p_double.declareUpdateHandler( &PropertyAlg::updateHandler, this );
  p_double.declareReadHandler( &PropertyAlg::readHandler, this );
 
  {
    // do not print messages if we are created in genconf
    const std::string cmd = System::cmdLineArgs()[0];
    if ( cmd.find( "genconf" ) != std::string::npos ) return;
  }
 
  info() << "Before Initialization......" << endmsg;
 
  info() << "Int    = " << m_int.value() << endmsg;
  info() << "Int64  = " << m_int64.value() << endmsg;
  info() << "UInt64 = " << m_uint64.value() << endmsg;
  info() << "Double = " << m_double.value() << endmsg;
  info() << "String = " << m_string.value() << endmsg;
  info() << "Bool   = " << m_bool.value() << endmsg;
  info() << "IntArray    = " << m_intarray.value() << endmsg;
  info() << "Int64Array  = " << m_int64array.value() << endmsg;
  info() << "UInt64Array = " << m_uint64array.value() << endmsg;
  info() << "DoubleArray = " << m_doublearray.value() << endmsg;
  info() << "StringArray = " << m_stringarray.value() << endmsg;
  info() << "BoolArray   = " << m_boolarray.value() << endmsg;
  info() << "EmptyArray  = " << m_emptyarray.value() << endmsg;
  info() << "IntPairArray  = " << u_intpairarray.value() << endmsg;
  info() << "DoublePairArray  = " << u_doublepairarray.value() << endmsg;
  info() << "IntSet = " << m_intset.value() << endmsg;
  info() << "StringSet = " << m_stringset.value() << endmsg;
  info() << "FloatUnorderedSet = " << m_floatuset.value() << endmsg;
 
  info() << "PInt    = " << p_int << endmsg;
  std::ostringstream os;
  os << p_double; // avoid read handler from printing _during_ info()!
  info() << "PDouble = " << os.str() << endmsg;
  info() << "PString = " << p_string << endmsg;
  info() << "PBool   = " << p_bool << endmsg;
  info() << "PIntArray    = " << p_intarray << endmsg;
  info() << "PDoubleArray = " << p_doublearray << endmsg;
  info() << "PStringArray = " << p_stringarray << endmsg;
  info() << "PBoolArray   = " << p_boolarray << endmsg;
}
 
//------------------------------------------------------------------------------
StatusCode PropertyAlg::initialize() {
  //------------------------------------------------------------------------------
 
  //
  // Checking the JobOptions interface. Be able to set the properties
  //
  info() << "After Initialization having read the JobOptions file..." << endmsg;
 
  info() << "Int    = " << m_int.value() << endmsg;
  info() << "Int64  = " << m_int64.value() << endmsg;
  info() << "UInt64 = " << m_uint64.value() << endmsg;
  info() << "Double = " << m_double.value() << endmsg;
  info() << "String = " << m_string.value() << endmsg;
  info() << "Bool   = " << m_bool.value() << endmsg;
  info() << "IntArray    = " << m_intarray.value() << endmsg;
  info() << "Int64Array  = " << m_int64array.value() << endmsg;
  info() << "UInt64Array = " << m_uint64array.value() << endmsg;
  info() << "DoubleArray = " << m_doublearray.value() << endmsg;
  info() << "StringArray = " << m_stringarray.value() << endmsg;
  info() << "BoolArray   = " << m_boolarray.value() << endmsg;
  info() << "EmptyArray  = " << m_emptyarray.value() << endmsg;
  info() << "IntPairArray  = " << u_intpairarray.value() << endmsg;
  info() << "DoublePairArray  = " << u_doublepairarray.value() << endmsg;
  info() << "IntSet = " << m_intset.value() << endmsg;
  info() << "StringSet = " << m_stringset.value() << endmsg;
  info() << "FloatUnorderedSet = " << m_floatuset.value() << endmsg;
  info() << "StringMap = " << m_strmap << endmsg;
 
  info() << "PInt    = " << p_int << endmsg;
  std::ostringstream os;
  os << p_double; // avoid read handler from printing _during_ info()!
  info() << "PDouble = " << os.str() << endmsg;
  info() << "PString = " << p_string << endmsg;
  info() << "PBool   = " << p_bool << endmsg;
  info() << "PIntArray    = " << p_intarray << endmsg;
  info() << "PDoubleArray = " << p_doublearray << endmsg;
  info() << "PStringArray = " << p_stringarray << endmsg;
  info() << "PBoolArray   = " << p_boolarray << endmsg;
  //
  // Checking units
  //
  auto& doublearrayunits = u_doublearrayunits.value();
  auto& doublearray      = u_doublearray.value();
  for ( unsigned int i = 0; i < doublearrayunits.size(); i++ ) {
 
    if ( !essentiallyEqual( doublearrayunits[i], doublearray[i] ) ) {
      error() << format( "DoubleArrayWithUnits[%d] = %g and should be %g", i, doublearrayunits[i], doublearray[i] )
              << endmsg;
    } else {
      info() << format( "DoubleArrayWithUnits[%d] = %g", i, doublearrayunits[i] ) << endmsg;
    }
  }
 
  //
  // Checking the Property Verifier
  //
  info() << "===============Checking Property Verifier ===============" << endmsg;
 
  info() << "Playing with PropertyVerifiers..." << endmsg;
 
  p_int.verifier().setBounds( 0, 200 );
  p_int = 155;
  // info() << "PInt= " << p_int << " [should be 155, bounds are " <<
  //                     p_int.verifier().lower() << ", " <<
  //                     p_int.verifier().upper() << " ]" << endmsg;
  info() << format( "PInt= %d [should be 155, bounds are %d, %d]", (int)p_int, (int)p_int.verifier().lower(),
                    (int)p_int.verifier().upper() )
         << endmsg;
  try {
    p_int = 255;
  } catch ( ... ) { info() << "Got an exception when setting a value outside bounds" << endmsg; }
  info() << "PInt= " << p_int << " [should be 155]" << endmsg;
 
  //
  //  Checking the Property CallBacks
  //
  info() << "===============Checking Property CallBaks ===============" << endmsg;
 
  double d;
  info() << "Accessing PDouble ... " << endmsg;
  d = p_double;
 
  info() << "Value obtained is: " << d << endmsg;
 
  info() << "Updating PDouble ... " << endmsg;
  p_double = 999.;
 
  //
  //  Checking Accessing Properties by string
  //
 
  info() << "==========Checking Accesing Properties by string=========" << endmsg;
 
  auto appmgr = serviceLocator()->as<IProperty>();
  // StatusCode sc = serviceLocator()->service("ApplicationMgr", appmgr);
  if ( !appmgr ) {
    error() << "Unable to locate the ApplicationMgr" << endmsg;
  } else {
    std::string value( "empty" );
    appmgr->getProperty( "ExtSvc", value ).ignore();
    info() << " Got property ApplicationMgr.ExtSvc = " << value << ";" << endmsg;
 
    appmgr->setPropertyRepr( "ExtSvc", "[\"EvtDataSvc/EventDataSvc\", \"DetDataSvc/DetectorDataSvc\"]" ).ignore();
    info() << " Set property ApplicationMgr.ExtSvc = "
           << " [\"EvtDataSvc/EventDataSvc\", \"DetDataSvc/DetectorDataSvc\"]"
           << ";" << endmsg;
    appmgr->getProperty( "ExtSvc", value ).ignore();
    info() << " Got property ApplicationMgr.ExtSvc = " << value << ";" << endmsg;
 
    appmgr->setPropertyRepr( "ExtSvc", "[ 'EventDataSvc', 'DetectorDataSvc']" ).ignore();
    info() << " Set property ApplicationMgr.ExtSvc = "
           << " [ 'EventDataSvc', 'DetectorDataSvc']"
           << ";" << endmsg;
    appmgr->getProperty( "ExtSvc", value ).ignore();
    info() << " Got property ApplicationMgr.ExtSvc = " << value << ";" << endmsg;
  }
  // Testing setting bool
  std::vector<std::tuple<std::string, bool>> cases = {
      std::make_tuple( "true", true ),   std::make_tuple( "false", false ), std::make_tuple( "True", true ),
      std::make_tuple( "False", false ), std::make_tuple( "TRUE", true ),   std::make_tuple( "FALSE", false ),
      std::make_tuple( "T", true ),  // not expected to work
      std::make_tuple( "F", false ), // not expected to work
      std::make_tuple( "10", true ), // not expected to work
  };
  StatusCode sc = StatusCode::SUCCESS;
  for ( auto& c : cases ) {
    p_bool = m_bool = !std::get<1>( c );
    try {
      sc = setPropertyRepr( "PBool", std::get<0>( c ) );
    } catch ( ... ) { sc = StatusCode::FAILURE; }
    if ( !sc || ( p_bool != std::get<1>( c ) ) ) {
      error() << "PBool can not be set to " << std::get<0>( c ) << endmsg;
    }
    try {
      sc = setPropertyRepr( "Bool", std::get<0>( c ) );
    } catch ( ... ) { sc = StatusCode::FAILURE; }
    if ( !sc || ( m_bool != std::get<1>( c ) ) ) { error() << "Bool can not be set to " << std::get<0>( c ) << endmsg; }
  }
 
  // Testing the control of the output level directly from MessageSvc
  MsgStream newlog( msgSvc(), "MsgTest" );
  newlog << MSG::VERBOSE << "This should be printed if threshold is VERBOSE" << endmsg;
  newlog << MSG::DEBUG << "This should be printed if threshold is DEBUG" << endmsg;
  newlog << MSG::INFO << "This should be printed if threshold is INFO" << endmsg;
  newlog << MSG::WARNING << "This should be printed if threshold is WARNING" << endmsg;
  newlog << MSG::ERROR << "This should be printed if threshold is ERROR" << endmsg;
  newlog << MSG::FATAL << "This should be printed if threshold is FATAL" << endmsg;
  newlog << MSG::ALWAYS << "This should be printed ALWAYS" << endmsg;
 
  // Testing access to the JobOptions catalogue
  auto& opts = serviceLocator()->getOptsSvc();
 
  // Dump of the catalogue
  info() << "=================================================" << endmsg;
  using GaudiUtils::details::ostream_joiner;
  auto opt_items = opts.items(); // this copy is just to hide differences between gcc and clang outputs
  ostream_joiner( info() << "Dump of the property catalogue:\n", opt_items, '\n',
                  []( MsgStream& os, const auto& item ) -> MsgStream& {
                    return os << std::get<0>( item ) << ": " << std::get<1>( item );
                  } )
      << endmsg;
  info() << "=================================================" << endmsg;
 
  // Change an option of my own....
  opts.set( name() + '.' + "PInt", "154" );
  info() << "PInt= " << p_int << " [should be 154]" << endmsg;
 
  auto orig_policy =
      Gaudi::Details::Property::setParsingErrorPolicy( Gaudi::Details::Property::ParsingErrorPolicy::Exception );
  try {
    info() << "Try to assign invalid value to DoubleArray" << endmsg;
    opts.set( name() + '.' + "DoubleArray", "{\"12.12\", \"13.13\"}" );
  } catch ( const GaudiException& exc ) { error() << "got exception: " << exc.what() << endmsg; }
 
  try {
    info() << "Try to assign invalid value to StringMap" << endmsg;
    opts.set( name() + '.' + "StringMap", "{\"one\", {\"une\", \"eins\"}}" );
  } catch ( const GaudiException& exc ) { error() << "got exception: " << exc.what() << endmsg; }
 
  Gaudi::Details::Property::setParsingErrorPolicy( orig_policy );
 
  info() << "DoubleArray = " << m_doublearray.value() << endmsg;
  info() << "=================================================" << endmsg;
  return StatusCode::SUCCESS;
}
 
//------------------------------------------------------------------------------
StatusCode PropertyAlg::execute() {
  //------------------------------------------------------------------------------
  info() << "executing...." << endmsg;
  return StatusCode::SUCCESS;
}
 
//------------------------------------------------------------------------------
StatusCode PropertyAlg::finalize() {
  //------------------------------------------------------------------------------
  info() << "finalizing...." << endmsg;
  return StatusCode::SUCCESS;
}
 
// Static Factory declaration
DECLARE_COMPONENT( PropertyAlg )