AsgAnalysisConfig.py

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# Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
 
# AnaAlgorithm import(s):
from AnalysisAlgorithmsConfig.ConfigBlock import ConfigBlock
from AnalysisAlgorithmsConfig.ConfigSequence import groupBlocks
from AthenaConfiguration.Enums import LHCPeriod
from AnalysisAlgorithmsConfig.ConfigAccumulator import (
    DataType, ExpertModeWarning,
    Run4FallbackWarning, GeneratorWeightWarning)
from enum import Enum
import warnings
 
try:
    from AthenaCommon.Logging import logging
except ImportError:
    import logging
 
class SystematicsCategories(Enum):
    JETS = {'JET_'}
    JER = {'JET_JER'}
    FTAG = {'FT_'}
    ELECTRONS = {'EG_', 'EL_'}
    MUONS = {'MUON_'}
    PHOTONS = {'EG_', 'PH_'}
    TAUS = {'TAUS_'}
    MET = {'MET_'}
    TRACKS = {'TRK_'}
    GENERATOR = {'GEN_'}
    PRW = {'PRW_'}
    EVENT = {'GEN_', 'PRW_'}
 
class CommonServicesConfig (ConfigBlock) :
    """the ConfigBlock for common services
 
    The idea here is that all algorithms need some common services, and I should
    provide configuration blocks for those.  For now there is just a single
    block, but in the future I might break out e.g. the systematics service.
    """
 
    def __init__ (self) :
        super (CommonServicesConfig, self).__init__ ()
        self.addOption ('runSystematics', None, type=bool,
            info="whether to turn on the computation of systematic variations. "
            "The default is to run them on MC.")
        self.addOption ('filterSystematics', None, type=str,
            info="a regexp string against which the systematics names will be "
            "matched. Only positive matches are retained and used in the evaluation "
            "of the various algorithms.")
        self.addOption ('onlySystematicsCategories', None, type=list,
            info="a list of strings defining categories of systematics to enable "
            "(only recommended for studies / partial ntuple productions). Choose amongst: "
            "`jets`, `JER`, `FTag`, `electrons`, `muons`, `photons`, `taus`, `met`, `tracks`, `generator`, `PRW`, `event`. "
            "This option is overridden by `filterSystematics`.",
            meta={'choices':(['jets', 'JER', 'FTag', 'electrons', 'muons', 'photons', 'taus', 'met', 'tracks', 'generator', 'PRW', 'event'], None)})
        self.addOption ('systematicsHistogram', None , type=str,
            info="the name of the histogram to which a list of executed "
            "systematics will be printed. If left empty, the histogram is not written at all.")
        self.addOption ('separateWeightSystematics', False, type=bool,
            info="if `systematicsHistogram` is enabled, whether to create a separate "
            "histogram holding only the names of weight-based systematics. This is useful "
            "to help make histogramming frameworks more efficient by knowing in advance which "
            "systematics need to recompute the observable and which don't.")
        self.addOption ('metadataHistogram', 'metadata' , type=str,
            info="the name of the metadata histogram which contains information about "
            "data type, campaign, etc. If left empty, the histogram is not written at all.")
        self.addOption ('enableExpertMode', False, type=bool,
            info="allows CP experts and CPAlgorithm devs to use non-recommended configurations. "
            "DO NOT USE FOR ANALYSIS.")
        self.addOption ('streamName', None, type=str,
            info="name of the output stream to save metadata histograms in.")
        self.addOption ('setupONNX', False, type=bool,
            info="creates an instance of `AthOnnx::OnnxRuntimeSvc`.")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return '' # no instance name, this is a singleton
 
    def makeAlgs (self, config) :
 
        sysService = config.createService( 'CP::SystematicsSvc', 'SystematicsSvc' )
 
        # Setup stream name
        streamName = self.streamName or config.defaultHistogramStream()
 
        # Handle all possible configuration options for systematics
        if self.runSystematics is False:
            runSystematics = self.runSystematics
        elif config.noSystematics() is not None:
            # if option not set:
            # check to see if set in config accumulator
            self.runSystematics = not config.noSystematics()
            runSystematics = self.runSystematics
        else:
            runSystematics = True
 
        # Now update the global configuration
        config._noSystematics = not runSystematics
 
        if runSystematics:
            sysService.sigmaRecommended = 1
            if config.dataType() is DataType.Data:
                # Only one type of allowed systematics on data: the JER variations!
                self.onlySystematicsCategories = ['JER']
            if self.onlySystematicsCategories is not None:
                # Convert strings to enums and validate
                requested_categories = set()
                for category_str in self.onlySystematicsCategories:
                    try:
                        category_enum = SystematicsCategories[category_str.upper()]
                        requested_categories |= category_enum.value
                    except KeyError:
                        raise ValueError(f"Invalid systematics category passed to option 'onlySystematicsCategories': {category_str}. Must be one of {', '.join(category.name for category in SystematicsCategories)}")
                # Construct regex pattern as logical-OR of category names
                if len(requested_categories):
                    sysService.systematicsRegex = "^(?=.*(" + "|".join(requested_categories) + ")|$).*"
            if self.filterSystematics is not None:
                sysService.systematicsRegex = self.filterSystematics
        config.createService( 'CP::SelectionNameSvc', 'SelectionNameSvc')
 
        if self.systematicsHistogram is not None:
            # print out all systematics
            allSysDumper = config.createAlgorithm( 'CP::SysListDumperAlg', 'SystematicsPrinter' )
            allSysDumper.histogramName = self.systematicsHistogram
            allSysDumper.RootStreamName = streamName
 
            if self.separateWeightSystematics:
                # print out only the weight systematics (for more efficient histogramming down the line)
                weightSysDumper = config.createAlgorithm( 'CP::SysListDumperAlg', 'OnlyWeightSystematicsPrinter' )
                weightSysDumper.histogramName = f"{self.systematicsHistogram}OnlyWeights"
                weightSysDumper.systematicsRegex = "^(GEN_|EL_EFF_|MUON_EFF_|PH_EFF_|TAUS_TRUEHADTAU_EFF_|FT_EFF_|JET_.*JvtEfficiency_|PRW_).*"
 
        if self.metadataHistogram:
            # add histogram with metadata
            if not config.flags:
                raise ValueError ("Writing out the metadata histogram requires to pass config flags")
            metadataHistAlg = config.createAlgorithm( 'CP::MetadataHistAlg', 'MetadataHistAlg' )
            metadataHistAlg.histogramName = self.metadataHistogram
            metadataHistAlg.dataType = str(config.dataType().value)
            metadataHistAlg.campaign = str(config.dataYear()) if config.dataType() is DataType.Data else str(config.campaign().value)
            metadataHistAlg.mcChannelNumber = str(config.dsid())
            metadataHistAlg.RootStreamName = streamName
            if config.dataType() is DataType.Data:
                etag = "unavailable"
            else:
                from AthenaConfiguration.AutoConfigFlags import GetFileMD
                metadata = GetFileMD(config.flags.Input.Files)
                amiTags = metadata.get("AMITag", "not found!")
                etag = str(amiTags.split("_")[0])
            metadataHistAlg.etag = etag
 
        if self.enableExpertMode:
            # set any expert-mode errors to be ignored instead
            warnings.simplefilter('ignore', ExpertModeWarning)
            # just warning users they might be doing something dangerous
            log = logging.getLogger('CommonServices')
            bold = "\033[1m"
            red = "\033[91m"
            yellow = "\033[93m"
            reset = "\033[0m"
            log.warning(red +r"""
  ________   _______  ______ _____ _______      __  __  ____  _____  ______       ______ _   _          ____  _      ______ _____
 |  ____\ \ / /  __ \|  ____|  __ \__   __|    |  \/  |/ __ \|  __ \|  ____|     |  ____| \ | |   /\   |  _ \| |    |  ____|  __ \
 | |__   \ V /| |__) | |__  | |__) | | |       | \  / | |  | | |  | | |__        | |__  |  \| |  /  \  | |_) | |    | |__  | |  | |
 |  __|   > < |  ___/|  __| |  _  /  | |       | |\/| | |  | | |  | |  __|       |  __| | . ` | / /\ \ |  _ <| |    |  __| | |  | |
 | |____ / . \| |    | |____| | \ \  | |       | |  | | |__| | |__| | |____      | |____| |\  |/ ____ \| |_) | |____| |____| |__| |
 |______/_/ \_\_|    |______|_|  \_\ |_|       |_|  |_|\____/|_____/|______|     |______|_| \_/_/    \_\____/|______|______|_____/
 
"""
                        +reset)
            log.warning(f"{bold}{yellow}These settings are not recommended for analysis. Make sure you know what you're doing, or disable them with `enableExpertMode: False` in `CommonServices`.{reset}")
 
        if self.setupONNX:
            config.createService('AthOnnx::OnnxRuntimeSvc', 'OnnxRuntimeSvc')
 
@groupBlocks
def CommonServices(seq):
    seq.append(CommonServicesConfig())
    from AsgAnalysisAlgorithms.TruthCollectionsFixerConfig import TruthCollectionsFixerBlock
    seq.append(TruthCollectionsFixerBlock())
 
class IOStatsBlock(ConfigBlock):
    """Print what branches are used in analysis"""
 
    def __init__(self):
        super(IOStatsBlock, self).__init__()
        self.addOption("printOption", "Summary", type=str,
                       info='option to pass the standard ROOT printing function. Can be `Summary`, `ByEntries` or `ByBytes`.',
                       meta={'choices':(['Summary','ByEntries','ByBytes'],1)})
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return ''  # no instance name, this is a singleton
 
    def makeAlgs(self, config):
        alg = config.createAlgorithm('CP::IOStatsAlg', 'IOStatsAlg')
        alg.printOption = self.printOption
 
 
class PileupReweightingBlock (ConfigBlock):
    """the ConfigBlock for pileup reweighting"""
 
    def __init__ (self) :
        super (PileupReweightingBlock, self).__init__ ()
        self.addOption ('campaign', None, type=None,
            info="the MC campaign for the PRW auto-configuration.")
        self.addOption ('files', None, type=list,
            info="the input files being processed (list of strings). "
            "Alternative to auto-configuration.")
        self.addOption ('useDefaultConfig', True, type=bool,
            info="whether to use the central PRW files.")
        self.addOption ('GRLSuffixDict', {}, type=dict,
            info="a year-suffix dictionary to help with autoconfiguration of "
            "GRL-specific PRW configuration, e.g. selecting 'BjetHLT'.")
        self.addOption ('userLumicalcFiles', None, type=list,
            info="user-provided lumicalc files (list of strings). Alternative "
            "to auto-configuration.")
        self.addOption ('userLumicalcFilesPerCampaign', None, type=dict,
            info="user-provided lumicalc files (dictionary of list of strings, "
            "with MC campaigns as the keys). Alternative to auto-configuration.")
        self.addOption ('userPileupConfigs', None, type=list,
            info="user-provided PRW files (list of strings). Alternative to "
            "auto-configuration.")
        self.addOption ('userPileupConfigsPerCampaign', None, type=dict,
            info="user-provided PRW files (dictionary of list of strings, with "
            "MC campaigns as the keys).")
        self.addOption ('postfix', '', type=str,
            info="a postfix to apply to decorations and algorithm names. "
            "Typically not needed unless several instances of `PileupReweighting` are scheduled.")
        self.addOption ('alternativeConfig', False, type=bool,
            info="whether this is used as an additional alternative config for `PileupReweighting`. "
            "Will only store the alternative pileup weight in that case.")
        self.addOption ('unrepresentedDataWarningThreshold', 1e-4, type=float,
            info="suppress the unrepresented-data WARNING when the unrepresented "
            "fraction is below this value (default 0.01%). Set to 0 to always "
            "warn.")
        self.addOption ('writeColumnarToolVariables', False, type=bool,
            info="whether to add `EventInfo` variables needed for running the columnar tool(s) on the output n-tuple. (EXPERIMENTAL).",
            expertMode=True)
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.postfix
 
    def makeAlgs (self, config) :
 
        from Campaigns.Utils import Campaign
 
        log = logging.getLogger('makePileupAnalysisSequence')
 
        eventInfoVar = [('runNumber','unsigned'),
                        ('eventNumber','unsigned_long'),
                        ('actualInteractionsPerCrossing','float'),
                        ('averageInteractionsPerCrossing','float')]
        if config.dataType() is not DataType.Data:
            eventInfoVar += [('mcChannelNumber','unsigned')]
        if self.writeColumnarToolVariables:
            # This is not strictly necessary, as the columnar users
            # could recreate this, but it is also a single constant int,
            # that should compress exceedingly well.
            eventInfoVar += [('eventTypeBitmask','int')]
 
        if config.isPhyslite() and not self.alternativeConfig:
            # PHYSLITE already has these variables defined, just need to copy them to the output
            log.info(f'Physlite does not need pileup reweighting. Variables will be copied from input instead. {config.isPhyslite}')
            for var_name,var_type in eventInfoVar:
                config.addOutputVar ('EventInfo', var_name, var_name, noSys=True, auxType=var_type)
 
            if config.dataType() is not DataType.Data:
                config.addOutputVar ('EventInfo', 'PileupWeight_%SYS%', 'weight_pileup', auxType='float')
                if config.geometry() is LHCPeriod.Run2:
                    config.addOutputVar ('EventInfo', 'beamSpotWeight', 'weight_beamspot', noSys=True, auxType='float')
            return
 
        # check files from flags
        if self.files is None and config.flags is not None:
            self.files = config.flags.Input.Files
 
        campaign = self.campaign
        # if user didn't explicitly configure campaign, let's try setting it from metadata
        # only needed on MC
        if config.dataType() is not DataType.Data and self.campaign is None:
            # if we used flags, campaign is auto-determined
            if config.campaign() is not None and config.campaign() is not Campaign.Unknown:
                campaign = config.campaign()
                log.info(f'Auto-configuring campaign for PRW from flags: {campaign.value}')
            else:
                # we try to determine campaign from files if above failed
                if self.files is not None:
                    from Campaigns.Utils import getMCCampaign
                    campaign = getMCCampaign(self.files)
                    if campaign and campaign is not Campaign.Unknown:
                        log.info(f'Auto-configuring campaign for PRW from files: {campaign.value}')
                    else:
                        log.info('Campaign could not be determined.')
 
 
        toolConfigFiles = []
        toolLumicalcFiles = []
 
        # PRW config files should only be configured if we run on MC
        # Run 4 not supported yet
        if (config.dataType() is not DataType.Data and
            config.geometry() is not LHCPeriod.Run4):
            # check if user provides per-campaign pileup config list
            if self.userPileupConfigs is not None and self.userPileupConfigsPerCampaign is not None:
                raise ValueError('Both userPileupConfigs and userPileupConfigsPerCampaign specified, '
                                 'use only one of the options!')
            if self.userPileupConfigsPerCampaign is not None:
                if not campaign:
                    raise Exception('userPileupConfigsPerCampaign requires campaign to be configured!')
                if campaign is Campaign.Unknown:
                    raise Exception('userPileupConfigsPerCampaign used, but campaign = Unknown!')
                try:
                    toolConfigFiles = self.userPileupConfigsPerCampaign[campaign.value][:]
                    log.info('Using user provided per-campaign PRW configuration')
                except KeyError as e:
                    raise KeyError(f'Unconfigured campaign {e} for userPileupConfigsPerCampaign!')
 
            elif self.userPileupConfigs is not None:
                toolConfigFiles = self.userPileupConfigs[:]
                log.info('Using user provided PRW configuration')
 
            else:
                if self.useDefaultConfig and self.files is None:
                    raise ValueError('useDefaultConfig requires files to be configured! '
                                    'Either pass them as an option or use flags.')
 
                from PileupReweighting.AutoconfigurePRW import getConfigurationFiles
                if campaign and campaign is not Campaign.Unknown:
                    toolConfigFiles = getConfigurationFiles(campaign=campaign,
                                                            files=self.files,
                                                            useDefaultConfig=self.useDefaultConfig,
                                                            data_type=config.dataType(),
                                                            GRLSuffixDict=self.GRLSuffixDict)
                    if self.useDefaultConfig:
                        log.info('Auto-configuring universal/default PRW config')
                    else:
                        log.info('Auto-configuring per-sample PRW config files based on input files')
                else:
                    log.info('No campaign specified, no PRW config files configured')
 
            # check if user provides per-campaign lumical config list
            if self.userLumicalcFilesPerCampaign is not None and self.userLumicalcFiles is not None:
                raise ValueError('Both userLumicalcFiles and userLumicalcFilesYear specified, '
                                'use only one of the options!')
            if self.userLumicalcFilesPerCampaign is not None:
                try:
                    toolLumicalcFiles = self.userLumicalcFilesPerCampaign[campaign.value][:]
                    log.info('Using user-provided per-campaign lumicalc files')
                except KeyError as e:
                    raise KeyError(f'Unconfigured campaign {e} for userLumicalcFilesPerCampaign!')
            elif self.userLumicalcFiles is not None:
                toolLumicalcFiles = self.userLumicalcFiles[:]
                log.info('Using user-provided lumicalc files')
            else:
                if campaign and campaign is not Campaign.Unknown:
                    from PileupReweighting.AutoconfigurePRW import getLumicalcFiles
                    toolLumicalcFiles = getLumicalcFiles(campaign, self.GRLSuffixDict)
                    log.info('Using auto-configured lumicalc files')
                else:
                    log.info('No campaign specified, no lumicalc files configured for PRW')
        else:
            log.info('Data needs no lumicalc and PRW configuration files')
 
        # Set up the only algorithm of the sequence:
        if config.geometry() is LHCPeriod.Run4:
            warnings.warn_explicit(
                'Pileup reweighting is not yet supported for Run 4 geometry',
                Run4FallbackWarning, filename='', lineno=0)
            alg = config.createAlgorithm( 'CP::EventDecoratorAlg', 'EventDecoratorAlg' )
            alg.uint32Decorations = { 'RandomRunNumber' :
                                      config.flags.Input.RunNumbers[0] }
 
        else:
            alg = config.createAlgorithm( 'CP::PileupReweightingAlg',
                                        'PileupReweightingAlg' )
            config.addPrivateTool( 'pileupReweightingTool', 'CP::PileupReweightingTool' )
            alg.pileupReweightingTool.ConfigFiles = toolConfigFiles
            if not toolConfigFiles and config.dataType() is not DataType.Data:
                log.info("No PRW config files provided. Disabling reweighting")
                # Setting the weight decoration to the empty string disables the reweighting
                alg.pileupWeightDecoration = ""
            else:
                alg.pileupWeightDecoration = "PileupWeight" + self.postfix + "_%SYS%"
            alg.pileupReweightingTool.LumiCalcFiles = toolLumicalcFiles
            alg.pileupReweightingTool.UnrepresentedDataWarningThreshold = (
                self.unrepresentedDataWarningThreshold)
 
        if not self.alternativeConfig:
            for var_name,var_type in eventInfoVar:
                config.addOutputVar ('EventInfo', var_name, var_name, noSys=True, auxType=var_type)
 
            if config.dataType() is not DataType.Data and config.geometry() is LHCPeriod.Run2:
                config.addOutputVar ('EventInfo', 'beamSpotWeight', 'weight_beamspot', noSys=True, auxType='float')
 
        if config.dataType() is not DataType.Data and toolConfigFiles:
            config.addOutputVar ('EventInfo', 'PileupWeight' + self.postfix + '_%SYS%',
                                 'weight_pileup'+self.postfix, auxType='float')
 
 
class GeneratorAnalysisBlock (ConfigBlock):
    """the ConfigBlock for generator algorithms"""
 
    def __init__ (self) :
        super (GeneratorAnalysisBlock, self).__init__ ()
        self.addOption ('saveCutBookkeepers', True, type=bool,
            info="whether to save the cut bookkeepers information into the "
            "output file.")
        self.addOption ('runNumber', None, type=int,
            info="the MC `runNumber`. If left empty, autoconfigure from the sample metadata.")
        self.addOption ('cutBookkeepersSystematics', None, type=bool,
            info="whether to also save the cut bookkeepers systematics. The "
            "default is `None` (follows the global systematics flag). Set to "
            "`False` or `True` to override.")
        self.addOption ('histPattern', None, type=str,
            info="the histogram name pattern for the cut-bookkeeper histogram names.")
        self.addOption ('streamName', None, type=str,
            info="name of the output stream to save the cut bookkeeper in.")
        self.addOption ('detailedPDFinfo', False, type=bool,
            info="save the necessary information to run the LHAPDF tool offline.")
        self.addOption ('doPDFReweighting', False, type=bool,
            info="perform the PDF reweighting to do the PDF sensitivity studies with the existing sample, intrinsic charm PDFs as the default here. WARNING: the reweighting closure should be validated within analysis (it has been proved to be good for Madgraph, aMC@NLO, Pythia8, Herwig, and Alpgen, but not good for Sherpa and Powheg).")
        self.addOption ('inPDFName', None, type=str, info="PDF set the input sample was produced with, for use in PDF reweighting")
        self.addOption ('outPDFName', [
            "CT14nnloIC/0", "CT14nnloIC/1", "CT14nnloIC/2", 
            "CT18FC/0", "CT18FC/3", "CT18FC/6", "CT18FC/9", 
            "CT18NNLO/0", "CT18XNNLO/0", 
            "NNPDF40_nnlo_pch_as_01180/0", "NNPDF40_nnlo_as_01180/0"
        ], type=list, info="list of PDF sets to use for PDF reweighting.")
        self.addOption ('doHFProdFracReweighting', False, type=bool,
            info="whether to apply HF production fraction reweighting.")
        self.addOption ('truthParticleContainer', 'TruthParticles', type=str,
            info="the name of the truth particle container to use for HF production fraction reweighting.")       
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.streamName or "DEFAULT"
 
    def makeAlgs (self, config) :
 
        if config.dataType() is DataType.Data:
            # there are no generator weights in data!
            return
        log = logging.getLogger('GeneratorAnalysis')
 
        # Setup stream name
        streamName = self.streamName or config.defaultHistogramStream()
 
        if self.runNumber is None:
            self.runNumber = config.runNumber()
 
        if self.saveCutBookkeepers and not self.runNumber:
            raise ValueError ("invalid run number: " + str(self.runNumber))
 
        # Set up the CutBookkeepers algorithm:
        if self.saveCutBookkeepers:
            alg = config.createAlgorithm('CP::AsgCutBookkeeperAlg', 'CutBookkeeperAlg')
            alg.RootStreamName = streamName
            alg.runNumber = self.runNumber
            if self.cutBookkeepersSystematics is None:
                alg.enableSystematics = not config.noSystematics()
            else:
                alg.enableSystematics = self.cutBookkeepersSystematics
            if self.histPattern:
                alg.histPattern = self.histPattern
            config.addPrivateTool( 'truthWeightTool', 'PMGTools::PMGTruthWeightTool' )
 
        # Set up the weights algorithm:
        alg = config.createAlgorithm( 'CP::PMGTruthWeightAlg', 'PMGTruthWeightAlg' )
        config.addPrivateTool( 'truthWeightTool', 'PMGTools::PMGTruthWeightTool' )
        alg.decoration = 'generatorWeight_%SYS%'
        config.addOutputVar ('EventInfo', 'generatorWeight_%SYS%', 'weight_mc')
 
        if self.detailedPDFinfo:
            alg = config.createAlgorithm( 'CP::PDFinfoAlg', 'PDFinfoAlg', reentrant=True )
            for var in ["PDFID1","PDFID2","PDGID1","PDGID2","Q","X1","X2","XF1","XF2"]:
                config.addOutputVar ('EventInfo', var, 'PDFinfo_' + var, noSys=True)
 
        if self.doPDFReweighting:
            generatorInfo = config.flags.Input.GeneratorsInfo
            log.info(f"Loaded generator info: {generatorInfo}")
 
            if not generatorInfo:
                warnings.warn_explicit("No generator info found.", GeneratorWeightWarning, filename='', lineno=0)
            elif isinstance(generatorInfo, dict):
 
                unsupported_generators = {
                    "Sherpa": "PDF reweighting for Sherpa is not proven to be reliable. The reweighting closure should be validated within the analysis.",
                    "Powheg": "PDF reweighting for Powheg is not proven to be reliable. The reweighting closure should be validated within the analysis."
                }
 
                # Check for unsupported generators
                for generator, message in unsupported_generators.items():
                    if generator in generatorInfo:
                        warnings.warn_explicit(
                            message,
                            GeneratorWeightWarning,
                            filename='',
                            lineno=0
                        )
 
            alg = config.createAlgorithm( 'CP::PDFReweightAlg', 'PDFReweightAlg', reentrant=True )
 
            if self.inPDFName is None:
                log.error("Option inPDFName not specified, but is required for PDF reweighting. This means the PDF set the input dataset was generated with is determined as …")
            else:
                alg.inPDFName = self.inPDFName
 
            alg.outPDFName = self.outPDFName
        
            for pdf_set in self.outPDFName:
                config.addOutputVar('EventInfo', f'PDFReweightSF_{pdf_set.replace("/", "_")}', 
                                    f'PDFReweightSF_{pdf_set.replace("/", "_")}', noSys=True, auxType='float') 
 
        
        if self.doHFProdFracReweighting:
            generatorInfo = config.flags.Input.GeneratorsInfo
            log.info(f"Loaded generator info: {generatorInfo}")
 
            DSID = "000000"
 
            if not generatorInfo:
                warnings.warn_explicit(
                    "No generator info found.",
                    GeneratorWeightWarning, filename='', lineno=0)
                DSID = "000000"
            elif isinstance(generatorInfo, dict):
                if "Pythia8" in generatorInfo:
                    DSID = "410470"
                elif "Sherpa" in generatorInfo and "2.2.8" in generatorInfo["Sherpa"]:
                    DSID = "421152"
                elif "Sherpa" in generatorInfo and "2.2.10" in generatorInfo["Sherpa"]:
                    DSID = "700122"
                elif "Sherpa" in generatorInfo and "2.2.11" in generatorInfo["Sherpa"]:
                    warnings.warn_explicit(
                        "HF production fraction reweighting is not configured"
                        " for Sherpa 2.2.11. Using weights for Sherpa 2.2.10"
                        " instead.",
                        GeneratorWeightWarning, filename='', lineno=0)
                    DSID = "700122"
                elif "Sherpa" in generatorInfo and "2.2.12" in generatorInfo["Sherpa"]:
                    warnings.warn_explicit(
                        "HF production fraction reweighting is not configured"
                        " for Sherpa 2.2.12. Using weights for Sherpa 2.2.10"
                        " instead.",
                        GeneratorWeightWarning, filename='', lineno=0)
                    DSID = "700122"
                elif "Sherpa" in generatorInfo and "2.2.14" in generatorInfo["Sherpa"]:
                    warnings.warn_explicit(
                        "HF production fraction reweighting is not configured"
                        " for Sherpa 2.2.14. New weights need to be"
                        " calculated.",
                        GeneratorWeightWarning, filename='', lineno=0)
                    DSID = "000000"
                elif "Sherpa" in generatorInfo and "2.2.1" in generatorInfo["Sherpa"]:
                    DSID = "410250"
                elif "Herwig7" in generatorInfo and "7.1.3" in generatorInfo["Herwig7"]:
                    DSID = "411233"
                elif "Herwig7" in generatorInfo and "7.2.1" in generatorInfo["Herwig7"]:
                    DSID = "600666"
                elif "Herwig7" in generatorInfo and "7." in generatorInfo["Herwig7"]:
                    DSID = "410558"
                elif "amc@NLO" in generatorInfo:
                    DSID = "410464"
                else:
                    warnings.warn_explicit(
                        f"HF production fraction reweighting is not configured"
                        f" for this generator: {generatorInfo}."
                        f" New weights need to be calculated.",
                        GeneratorWeightWarning, filename='', lineno=0)
                    DSID = "000000"
            else:
                warnings.warn_explicit(
                    "Failed to determine generator from metadata",
                    GeneratorWeightWarning, filename='', lineno=0)
                DSID = "000000"
 
            log.info(f"Using HF production fraction weights calculated using DSID {DSID}")
            if DSID == "000000":
                warnings.warn_explicit(
                    "HF production fraction reweighting will return dummy"
                    " weights of 1.0",
                    GeneratorWeightWarning, filename='', lineno=0)
 
            alg = config.createAlgorithm( 'CP::SysTruthWeightAlg', f'SysTruthWeightAlg_{streamName}' )
            config.addPrivateTool( 'sysTruthWeightTool', 'PMGTools::PMGHFProductionFractionTool' )
            alg.decoration = 'prodFracWeight_%SYS%'
            alg.TruthParticleContainer = self.truthParticleContainer
            alg.sysTruthWeightTool.ShowerGenerator = DSID
            config.addOutputVar ('EventInfo', 'prodFracWeight_%SYS%', 'weight_HF_prod_frac')
 
class PtEtaSelectionBlock (ConfigBlock):
    """the ConfigBlock for a pt-eta selection"""
 
    def __init__ (self) :
        super (PtEtaSelectionBlock, self).__init__ ()
        self.addOption ('containerName', '', type=str,
            noneAction='error',
            info="the name of the input container.",
            meta={'role':'containerRef'})
        self.addOption ('selectionName', '', type=str,
            noneAction='error',
            info="the name of the selection to append this to. If left empty, "
            "the cuts are applied to every "
            "object within the container. Specifying a name (e.g. `loose`) "
            "applies the cut only to those object who also pass that selection.",
            meta={'role':'selection'})
        self.addOption ('minPt', None, type=float,
            info=r"minimum $p_\mathrm{T}$ value to cut on (in MeV).")
        self.addOption ('maxPt', None, type=float,
            info=r"maximum  $p_\mathrm{T}$ value to cut on (in MeV).")
        self.addOption ('minEta', None, type=float,
            info=r"minimum $\vert\eta\vert$ value to cut on.")
        self.addOption ('maxEta', None, type=float,
            info=r"maximum $\vert\eta\vert$ value to cut on.")
        self.addOption ('maxRapidity', None, type=float,
            info="maximum rapidity value to cut on.")
        self.addOption ('etaGapLow', None, type=float,
            info=r"low end of the $\vert\eta\vert$ gap.")
        self.addOption ('etaGapHigh', None, type=float,
            info=r"high end of the $\vert\eta\vert$ gap.")
        self.addOption ('selectionDecoration', None, type=str,
            info="the name of the decoration to set. If `None`, will be set "
            "to `selectPtEta` followed by the selection name.")
        self.addOption ('useClusterEta', False, type=bool,
            info=r"whether to use the cluster $\eta$ (`etaBE(2)`) instead of the object "
            r"$\eta$ (for electrons and photons).")
        self.addOption ('useDressedProperties', False, type=bool,
            info="whether to use the dressed kinematic properties "
            "(for truth particles only).")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.containerName + "_" + self.selectionName
 
    def makeAlgs (self, config) :
 
        alg = config.createAlgorithm( 'CP::AsgSelectionAlg', 'PtEtaSelectionAlg' )
        config.addPrivateTool( 'selectionTool', 'CP::AsgPtEtaSelectionTool' )
        if self.minPt is not None :
            alg.selectionTool.minPt = self.minPt
        if self.maxPt is not None:
            alg.selectionTool.maxPt = self.maxPt
        if self.minEta is not None:
            alg.selectionTool.minEta = self.minEta
        if self.maxEta is not None :
            alg.selectionTool.maxEta = self.maxEta
        if self.maxRapidity is not None :
            alg.selectionTool.maxRapidity = self.maxRapidity
        if self.etaGapLow is not None:
            alg.selectionTool.etaGapLow = self.etaGapLow
        if self.etaGapHigh is not None:
            alg.selectionTool.etaGapHigh = self.etaGapHigh
        if self.selectionDecoration is None:
            self.selectionDecoration = 'selectPtEta' + (f'_{self.selectionName}' if self.selectionName else '')
        alg.selectionTool.useClusterEta = self.useClusterEta
        alg.selectionTool.useDressedProperties = self.useDressedProperties
        alg.selectionDecoration = self.selectionDecoration
        alg.particles = config.readName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, '')
        config.addSelection (self.containerName, self.selectionName, alg.selectionDecoration)
 
 
 
class ObjectCutFlowBlock (ConfigBlock):
    """the ConfigBlock for an object cutflow"""
 
    def __init__ (self) :
        super (ObjectCutFlowBlock, self).__init__ ()
        self.addOption ('containerName', '', type=str,
            noneAction='error',
            info="the name of the input container.",
            meta={'role':'containerRef'})
        self.addOption ('selectionName', '', type=str,
            noneAction='error',
            info="the name of the selection to perform the cutflow for. If left empty, "
            "the cutflow is "
            "performed for every object within the container. Specifying a "
            "name (e.g. `loose`) generates the cutflow only for those objects "
            "that also pass that selection.",
            meta={'role':'selection'})
        self.addOption ('forceCutSequence', False, type=bool,
            info="whether to force the cut sequence and not accept objects "
            "if previous cuts failed.")
        self.addOption ('streamName', None, type=str,
            info="name of the output stream to save the cutflow histogram in.")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.containerName + '_' + self.selectionName
 
    def makeAlgs (self, config) :
        streamName = self.streamName or config.defaultHistogramStream()
 
        alg = config.createAlgorithm( 'CP::ObjectCutFlowHistAlg', 'CutFlowDumperAlg' )
        alg.RootStreamName = streamName
        alg.histPattern = 'cflow_' + self.containerName + "_" + self.selectionName + '_%SYS%'
        alg.selections = config.getSelectionCutFlow (self.containerName, self.selectionName)
        alg.input = config.readName (self.containerName)
        alg.histTitle = "Object Cutflow: " + self.containerName + "." + self.selectionName
        alg.forceCutSequence = self.forceCutSequence
 
 
class EventCutFlowBlock (ConfigBlock):
    """the ConfigBlock for an event-level cutflow"""
 
    def __init__(self):
        super(EventCutFlowBlock, self).__init__()
        self.addOption('selectionName', '', type=str,
            noneAction='error',
            info="the name of the event selection to generate cutflow histograms for. "
            "If left blank, all selections on EventInfo will be used.",
            meta={'role':'region'})
        self.addOption('customSelections', [], type=None,
            info="explicit list of selection decorations to use for the cutflow. "
            "If provided, takes precedence over selectionName.")
        self.addOption('cutFlowHistograms', True, type=bool,
            info="whether to generate cutflow histograms for the selection cuts.")
        self.addOption('cutFlowHistogramsWithSystematics', True, type=bool,
            info="whether to generate cutflow histograms for the selection cuts"
                "when running with systematics.")
        self.addOption ('streamName', None, type=str,
            info="name of the output stream to save the cut bookkeeper in.")
 
    def instanceName(self):
        return 'EventInfo_' + self.selectionName
 
    def makeAlgs(self, config):
        if not self.cutFlowHistograms:
            return
 
        if not config.noSystematics() and not self.cutFlowHistogramsWithSystematics:
            return
 
        # Setup stream name
        streamName = self.streamName or config.defaultHistogramStream()
 
        postfix = ('_' + self.selectionName) if self.selectionName else ''
 
        alg = config.createAlgorithm('CP::EventCutFlowHistAlg', 'CutFlowDumperAlg')
        alg.RootStreamName = streamName
        alg.histPattern = 'cflow_EventInfo' + postfix + '_%SYS%'
        alg.eventInfo = config.readName('EventInfo')
        alg.histTitle = 'Event Cutflow: EventInfo.' + self.selectionName
 
        if isinstance(self.customSelections, list) and len(self.customSelections) > 0:
            # user provides a hardcoded list of selections
            alg.selections = self.customSelections
        elif self.selectionName:
            # resolve selectionName to the list of cuts registered by EventSelectionConfig
            alg.selections = config.getEventCutFlow(self.selectionName)
        else:
            # fallback: get all available selections from EventInfo
            alg.selections = config.getSelectionCutFlow('EventInfo', '')
 
        alg.selections = [sel + ',as_char' for sel in alg.selections]
 
class OutputThinningBlock (ConfigBlock):
    """the ConfigBlock for output thinning"""
 
    def __init__ (self) :
        super (OutputThinningBlock, self).__init__ ()
        self.setBlockName('Thinning')
        self.addOption ('containerName', '', type=str,
            noneAction='error',
            info="the name of the input container.",
            meta={'role':'containerRef'})
        self.addOption ('postfix', '', type=str,
            info="a postfix to apply to decorations and algorithm names. "
            "Typically not needed here.")
        self.addOption ('selection', '', type=str,
            info="the name of an optional selection decoration to use.",
            meta={'role':'selection'})
        self.addOption ('selectionName', '', type=str,
            info="the name of the selection to append this to. If left empty, "
            "the cuts are applied to every "
            "object within the container. Specifying a name (e.g. `loose`) "
            "applies the cut only to those object who also pass that selection.",
            meta={'role':'selection'})
        self.addOption ('outputName', None, type=str,
            info="an optional name for the output container.",
            meta={'role':'container'})
        self.addOption ('deepCopy', False, type=bool,
            info="run a deep copy of the container.")
        self.addOption ('sortPt', False, type=bool,
            info=r"whether to sort objects in $p_\mathrm{T}$.")
        self.addOption ('noUniformSelection', False, type=bool,
            info="do not run the union over all selections.")
        self.addOption ('containerType', None, type=str,
            info="the type of the container to thin. Only needed in AthenaMT, and only if subsequent code has a data dependency on the created container under that type.")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.containerName + '_' + self.selectionName + self.postfix
 
    def makeAlgs (self, config) :
 
        postfix = self.postfix
        if postfix != '' and postfix[0] != '_' :
            postfix = '_' + postfix
 
        selection = config.getFullSelection (self.containerName, self.selectionName)
        if selection == '' :
            selection = self.selection
        elif self.selection != '' :
            selection = selection + '&&' + self.selection
 
        if selection != '' and not self.noUniformSelection :
            alg = config.createAlgorithm( 'CP::AsgUnionSelectionAlg', 'UnionSelectionAlg')
            alg.preselection = selection
            alg.particles = config.readName (self.containerName)
            alg.selectionDecoration = 'outputSelect' + postfix
            config.addSelection (self.containerName, alg.selectionDecoration, selection)
            selection = 'outputSelect' + postfix
 
        alg = config.createAlgorithm( 'CP::AsgViewFromSelectionAlg', 'DeepCopyAlg' )
        alg.input = config.readName (self.containerName)
        if self.outputName is not None :
            alg.output = self.outputName + '_%SYS%'
            config.addOutputContainer (self.containerName, self.outputName)
        else :
            alg.output = config.copyName (self.containerName)
        if self.containerType is not None :
            alg.outputType = self.containerType
        if selection != '' :
            alg.selection = [selection]
        else :
            alg.selection = []
        alg.deepCopy = self.deepCopy
        if self.sortPt and not config.noSystematics() :
            raise ValueError ("Sorting by pt is not supported with systematics")
        alg.sortPt = self.sortPt
 
 
class IFFLeptonDecorationBlock (ConfigBlock):
    """the ConfigBlock for the IFF classification of leptons"""
 
    def __init__ (self) :
        super (IFFLeptonDecorationBlock, self).__init__()
        self.addOption ('containerName', '', type=str,
            noneAction='error',
            info="the name of the input electron or muon container.",
            meta={'role':'containerRef'})
        self.addOption ('separateChargeFlipElectrons', True, type=bool,
            info="whether to consider charged-flip electrons as a separate class.")
        self.addOption ('decoration', 'IFFClass_%SYS%', type=str,
            info="the name of the decoration set by the IFF "
            "`TruthClassificationTool`.")
        # Always skip on data
        self.setOptionValue('skipOnData', True)
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.containerName
 
    def makeAlgs (self, config) :
        particles = config.readName(self.containerName)
 
        alg = config.createAlgorithm( 'CP::AsgClassificationDecorationAlg', 'IFFClassifierAlg' )
        # the IFF classification tool
        config.addPrivateTool( 'tool', 'TruthClassificationTool')
        # label charge-flipped electrons as such
        alg.tool.separateChargeFlipElectrons = self.separateChargeFlipElectrons
        alg.decoration = self.decoration
        alg.particles = particles
 
        # write the decoration only once to the output
        config.addOutputVar(self.containerName, alg.decoration, alg.decoration.split("_%SYS%")[0], noSys=True)
 
 
class MCTCLeptonDecorationBlock (ConfigBlock):
 
    def __init__ (self) :
        super (MCTCLeptonDecorationBlock, self).__init__ ()
 
        self.addOption ("containerName", '', type=str,
                        noneAction='error',
                        info="the input lepton container, with a possible selection, "
                        "in the format `container` or `container.selection`.",
                        meta={'role':'containerRef'})
        self.addOption ("prefix", 'MCTC_', type=str,
                        info="the prefix of the decorations based on the MCTC "
                        "classification.")
        # Always skip on data
        self.setOptionValue('skipOnData', True)
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.containerName
 
    def makeAlgs (self, config) :
        particles, selection = config.readNameAndSelection(self.containerName)
 
        alg = config.createAlgorithm ("CP::MCTCDecorationAlg", "MCTCDecorationAlg")
        alg.particles = particles
        alg.preselection = selection
        alg.affectingSystematicsFilter = '.*'
        config.addOutputVar (self.containerName, "MCTC_isPrompt", f"{self.prefix}isPrompt", noSys=True)
        config.addOutputVar (self.containerName, "MCTC_fromHadron", f"{self.prefix}fromHadron", noSys=True)
        config.addOutputVar (self.containerName, "MCTC_fromBSM", f"{self.prefix}fromBSM", noSys=True)
        config.addOutputVar (self.containerName, "MCTC_fromTau", f"{self.prefix}fromTau", noSys=True)
 
 
class PerEventSFBlock (ConfigBlock):
    """the ConfigBlock for the AsgEventScaleFactorAlg"""
 
    def __init__ (self):
        super(PerEventSFBlock, self).__init__()
        self.addOption('algoName', None, type=str,
            info="unique name given to the underlying algorithm computing the "
            "per-event scale factors.")
        self.addOption('particles', '', type=str,
            info="the input object container, with a possible selection, in the "
            "format `container` or `container.selection`.",
            meta={'role':'containerRef'})
        self.addOption('objectSF', '', type=str,
            info="the name of the per-object SF decoration to be used.")
        self.addOption('eventSF', '', type=str,
            info="the name of the per-event SF decoration.")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.particles + '_' + self.objectSF + '_' + self.eventSF
 
    def makeAlgs(self, config):
        if config.dataType() is DataType.Data:
            return
        particles, selection = config.readNameAndSelection(self.particles)
        alg = config.createAlgorithm('CP::AsgEventScaleFactorAlg', self.algoName if self.algoName else 'AsgEventScaleFactorAlg')
        alg.particles = particles
        alg.preselection = selection
        alg.scaleFactorInputDecoration = self.objectSF
        alg.scaleFactorOutputDecoration = self.eventSF
 
        config.addOutputVar('EventInfo', alg.scaleFactorOutputDecoration,
                            alg.scaleFactorOutputDecoration.split("_%SYS%")[0])
 
 
class SelectionDecorationBlock (ConfigBlock):
    """the ConfigBlock to add selection decoration to a container"""
 
    def __init__ (self) :
        super (SelectionDecorationBlock, self).__init__ ()
        # TODO: add info string
        self.addOption('containers', [], type=list,
            noneAction='error',
            info="")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return ''
 
    def makeAlgs(self, config):
        for container in self.containers:
            originContainerName = config.getOutputContainerOrigin(container)
            selectionNames = config.getSelectionNames(originContainerName)
            for selectionName in selectionNames:
                # skip default selection
                if selectionName == '':
                    continue
                alg = config.createAlgorithm(
                    'CP::AsgSelectionAlg',
                    f'SelectionDecoration_{originContainerName}_{selectionName}')
                selectionDecoration = f'baselineSelection_{selectionName}_%SYS%'
                alg.selectionDecoration =  f'{selectionDecoration},as_char'
                alg.particles = config.readName (originContainerName)
                alg.preselection = config.getFullSelection (originContainerName,
                                                            selectionName)
                config.addOutputVar(
                    originContainerName, selectionDecoration, selectionName)