def _call_consumer(self, optname, optvalue, specargs):
for constraint, func in self._get_consumers():
match = constraint.match(optname)
if match:
return func(match, optvalue, specargs)
raise ParsingError('The option "%s" is not valid.' % optname)
def _convert_transition_line(self, line):
xpr = re.compile(r'([^\(]*?) ?\(([^=]*?) ?=> ?([^\(]*)\)')
match = xpr.match(line)
if not match:
raise ParsingError(
'Transition line has an invalid format: "%s"' % line)
title, src_status_title, dest_status_title = match.groups()
return Transition(title=title,
src_status_title=src_status_title,
dest_status_title=dest_status_title)
def _convert_role_mapping(self, match, value, specargs):
lines = map(str.strip, value.strip().split('\n'))
xpr = re.compile(r'^([^=]*?) ?=> ?(.*)$')
mapping = specargs['role_mapping'] = {}
for line in lines:
match = xpr.match(line)
if not match:
raise ParsingError('Invalid format in role mapping: "%s"' % (
line))
customer_role, plone_role = match.groups()
mapping[customer_role.lower()] = plone_role
def convert_statement(statement):
result = _convert_worklist_statement(statement)
if result:
return WORKLIST_STATEMENT, result
result = _convert_role_inheritance_statement(statement)
if result:
return ROLE_INHERITANCE_STATEMENT, result
result = _convert_permission_statement(statement)
if result:
return PERMISSION_STATEMENT, result
raise ParsingError('Unkown statement format: "%s"' % statement)
def _convert_general_statements(self, match, value, specargs):
statements = specargs['generals'] = []
role_inheritance = specargs['role_inheritance'] = []
lines = map(str.strip, value.strip().split('\n'))
for line in lines:
type_, item = convert_statement(line)
if type_ == PERMISSION_STATEMENT:
statements.append(item)
elif type_ == ROLE_INHERITANCE_STATEMENT:
role_inheritance.append(item)
elif type_ == WORKLIST_STATEMENT:
raise ParsingError('Worklist statements are not allowed'
' in the "General" section.')
def _convert(self):
"""Convert the configparser `self._config` into a ISpecification
object (`self._spec`).
"""
if len(self._config.sections()) != 1:
raise ParsingError(
'Exactly one ini-style section is required,'
' containing the workflow title.')
sectionname = self._config.sections()[0]
specargs = {'title': sectionname,
'states': {}}
for name, value in self._config.items(sectionname):
self._call_consumer(name, value, specargs)
self._spec = Specification(**specargs)