IAddSequencer.py

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from AthenaCommon.Configurable import *
from GaudiAlg.GaudiAlgConf import Sequencer

from AthenaCommon.Logging import logging

## @brief Sequencer class using "+=" to schedule Algorithms.

class IAddSequencer ( Sequencer )  :

    ## Defines "+=" behaviour.
    # First adds Algorithm to the Sequencer, which schedules it to be run
    # but DOES NOT take care of ownership. Then appends the full name of the
    # Algorithm to the list of Sequencer members. This means that the Sequencer
    # owns the Algorithm and prevents it from disappearing before it can be used.
    # Returns the Sequencer after the addition. """

    def __iadd__(self,alghandle):

        try:
            Sequencer.__iadd__(self, alghandle)
            self.Members.append( alghandle.getFullName() )
        except (RuntimeError, TypeError):
            mlog = logging.getLogger( 'IAddSequencer::__iadd__ ' )
            if hasattr( alghandle, 'getFullName' ):
                mlog.error ("Could not add "+alghandle.getFullName()+" to IAddSequencer")
            else:
                mlog.error ("Could not add "+str(alghandle)+" to IAddSequencer")
        return self

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