class MannheimAtomizer(object):
"""
Atomizes table based on subject column into N
tables, where N is (number of columns - 1)
"""
def __init__(self):
self.subjectColumnIdentifier = SimpleIdentifier()
self.logger = Logger().getLogger(__name__)
def atomizeTable(self, table):
try:
subjectColumnNumber = self.subjectColumnIdentifier.identifySubjectColumn(table)
except SubjectColumnNotFoundError as e:
self.logger.error("Subject column not found", exc_info=True)
subjectColumnNumber = 0
relations = table.getTable()
atomicTables = []
subjectCol = relations[subjectColumnNumber]
for index in range(len(relations) - 1):
if index != subjectColumnNumber:
otherCol = relations[index]
atomicTable = numpy.array([subjectCol, otherCol])
atomicTables.append(atomicTable)
else:
continue
if(len(atomicTables) < 1):
raise CouldNotAtomizeError("Table could not be atomized!")
self.logger.error("Table could not be atomized!")
self.logger.error("%s" % (relations,))
return atomicTables