question: public static void sanitizeExportMaskContainers ( DbClient dbClient , ExportMask exportMask ) { if ( exportMask != null ) { List < URI > initiatorURIs = StringSetUtil . stringSetToUriList ( exportMask . getInitiators ( ) ) ; List < URI > initiatorsToRemove = new ArrayList < > ( ) ; for ( URI initiatorURI : initiatorURIs ) { DataObject initiator = dbClient . queryObject ( initiatorURI ) ; if ( initiator == null || initiator . getInactive ( ) ) { initiatorsToRemove . add ( initiatorURI ) ; } } if ( ! initiatorsToRemove . isEmpty ( ) ) { _log . info ( String . format ( "sanitizeExportMaskContainers - Removing non-existent/inactive Initiators from ExportMask %s (%s): %s" , exportMask . getMaskName ( ) , exportMask . getId ( ) , CommonTransformerFunctions . collectionToString ( initiatorsToRemove ) ) ) ; exportMask . removeInitiatorURIs ( initiatorsToRemove ) ; exportMask . removeFromUserAddedInitiatorsByURI ( initiatorsToRemove ) ; } Map < URI , Integer > volumeMap = StringMapUtil . stringMapToVolumeMap ( exportMask . getVolumes ( ) ) ; List < URI > volumesToRemove = new ArrayList < > ( ) ; for ( URI volumeURI : volumeMap . keySet ( ) ) { DataObject volume = dbClient . queryObject ( volumeURI ) ; if ( volume == null || volume . getInactive ( ) ) { volumesToRemove . add ( volumeURI ) ; } } if ( ! volumesToRemove . isEmpty ( ) ) { _log . info ( String . format ( "sanitizeExportMaskContainers - Removing non-existent/inactive BlockObjects from ExportMask %s (%s): %s" , exportMask . getMaskName ( ) , exportMask . getId ( ) , CommonTransformerFunctions . collectionToString ( volumesToRemove ) ) ) ; exportMask . removeVolumes ( volumesToRemove ) ; exportMask . removeFromUserAddedVolumesByURI ( volumesToRemove ) ; } List < URI > storagePorts = StringSetUtil . stringSetToUriList ( exportMask . getStoragePorts ( ) ) ; List < URI > storagePortsToRemove = new ArrayList < > ( ) ; for ( URI storagePortURI : storagePorts ) { DataObject storagePort = dbClient . queryObject ( storagePortURI ) ; if ( storagePort == null || storagePort . getInactive ( ) ) { storagePortsToRemove . add ( storagePortURI ) ; } } if ( ! storagePortsToRemove . isEmpty ( ) ) { _log . info ( String . format ( "sanitizeExportMaskContainers - Removing non-existent/inactive StoragePorts from ExportMask %s (%s): %s" , exportMask . getMaskName ( ) , exportMask . getId ( ) , CommonTransformerFunctions . collectionToString ( storagePortsToRemove ) ) ) ; exportMask . removeTargets ( storagePortsToRemove ) ; } } }
target:  Routine will examine the ExportMask and determine if any of its initiators or volumes no longer exist in the database or are marked as inactive. If so, they will get removed from the list.