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"""
Some topic definition validation functions.
:copyright: Copyright since 2006 by Oliver Schoenborn, all rights reserved.
:license: BSD, see LICENSE_BSD_Simple.txt for details.
"""
from .topicexc import MessageDataSpecError
def verifyArgsDifferent(allArgs, allParentArgs, topicName):
"""Verify that allArgs does not contain any of allParentArgs. Raise
MessageDataSpecError if fail. """
extra = set(allArgs).intersection(allParentArgs)
if extra:
msg = 'Args %%s already used in parent of "%s"' % topicName
raise MessageDataSpecError( msg, tuple(extra) )
def verifySubset(all, sub, topicName, extraMsg=''):
"""Verify that sub is a subset of all for topicName. Raise
MessageDataSpecError if fail. """
notInAll = set(sub).difference(all)
if notInAll:
args = ','.join(all)
msg = 'Params [%s] missing inherited [%%s] for topic "%s"%s' % (args, topicName, extraMsg)
raise MessageDataSpecError(msg, tuple(notInAll) )
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