def isValid(self, token, wme):
reference = self._reference
assert isinstance(reference, VariableReference)
try:
# if token relative index is 0, then the test is an intra-element
# test performed in the beta network
# this means that the wme where the variable was found first
# is the same where the variable was found again
if reference.relPatternIndex != 0:
nToken = getTokenAnchestor(
token, (-1 * reference.relPatternIndex) - 1)
# get the exact wme value of the token where variable for used first
valueInTokenWme = reference.reference.toValue(nToken.wme)
else:
valueInTokenWme = reference.reference.toValue(wme)
# get the value in current wme there variable must have the same value
valueInWme = reference.toValue(wme)
# when i've found them all
# i can compare them
# for eq or neq based on reference.isNegative value
eqResult = (valueInTokenWme == valueInWme)
return eqResult if reference.isNegative is not True else not eqResult
except KeyError:
# it's ok. If a catch this exception
# means that the wme has not an index at all
# so no value can be tested.
# This make the test fail
return False
except Exception, e:
# Another type of exception catch
# better log this
myclips.logger.warning(
"Unexpected exception caught in %s: token=%s, wme=%s, exception=%s",
self, token, wme, repr(e))
# anyway test failed
return False
def isValid(self, token, wme):
reference = self._reference
assert isinstance(reference, VariableReference)
try:
# if token relative index is 0, then the test is an intra-element
# test performed in the beta network
# this means that the wme where the variable was found first
# is the same where the variable was found again
if reference.relPatternIndex != 0:
nToken = getTokenAnchestor(token, (-1 * reference.relPatternIndex) - 1)
# get the exact wme value of the token where variable for used first
valueInTokenWme = reference.reference.toValue(nToken.wme)
else:
valueInTokenWme = reference.reference.toValue(wme)
# get the value in current wme there variable must have the same value
valueInWme = reference.toValue(wme)
# when i've found them all
# i can compare them
# for eq or neq based on reference.isNegative value
eqResult = valueInTokenWme == valueInWme
return eqResult if reference.isNegative is not True else not eqResult
except KeyError:
# it's ok. If a catch this exception
# means that the wme has not an index at all
# so no value can be tested.
# This make the test fail
return False
except Exception, e:
# Another type of exception catch
# better log this
myclips.logger.warning(
"Unexpected exception caught in %s: token=%s, wme=%s, exception=%s", self, token, wme, repr(e)
)
# anyway test failed
return False
def isValid(self, token, wme):
"""
Evaluate the token and check if constraints are valid
@param token: a token
@type token: Token
@param wme: NONE! Test-CE tests are not performed with a wme from right
@type wme: None
"""
try:
# replace all fake variables with their real values
# from the token
varValues = {}
for fakeName, reference in self.references.items():
# if token relative index is 0, then the test is an intra-element
# test performed in the beta network
# this means that the wme where the variable was found first
# is the same where the variable was found again
if reference.relPatternIndex != 0:
nToken = getTokenAnchestor(token, (-1 * reference.relPatternIndex) - 1)
# get the exact wme value of the token where variable for used first
valueInTokenWme = reference.reference.toValue(nToken.wme)
else:
valueInTokenWme = reference.reference.toValue(wme)
# get the value in current wme there variable must have the same value
varValues[fakeName] = valueInTokenWme
# create a new FunctionEnv for function execution
# network, modulesManager and RESOURCES are not valid values
# because all functions that use knoledge about the network configuration
# have to raise exception if called
from myclips.functions import FunctionEnv
theEnv = FunctionEnv(varValues, None, None, None)
# execute the function and get back the result
theReturnValue = self.function.funcDefinition.linkedType.__class__.execute(
self.function.funcDefinition.linkedType, theEnv, *(self.function.funcArgs)
)
if isinstance(theReturnValue, types.Symbol) and theReturnValue.pyEqual("FALSE"):
return False
else:
return True
except KeyError:
# it's ok. If a catch this exception
# means that the wme has not an index at all
# so no value can be tested.
# This make the test fail
return False
except Exception, e:
# Another type of exception catch
# better log this
myclips.logger.warning(
"Unexpected exception catch in %s: token=%s, wme=%s, exception=%s", self, token, wme, repr(e)
)
# import traceback
# import sys
# traceback.print_stack(file=sys.stderr)
# anyway test failed
return False
def isValid(self, token, wme):
'''
Evaluate the token and check if constraints are valid
@param token: a token
@type token: Token
@param wme: NONE! Test-CE tests are not performed with a wme from right
@type wme: None
'''
try:
# replace all fake variables with their real values
# from the token
varValues = {}
for fakeName, reference in self.references.items():
# if token relative index is 0, then the test is an intra-element
# test performed in the beta network
# this means that the wme where the variable was found first
# is the same where the variable was found again
if reference.relPatternIndex != 0:
nToken = getTokenAnchestor(
token, (-1 * reference.relPatternIndex) - 1)
# get the exact wme value of the token where variable for used first
valueInTokenWme = reference.reference.toValue(nToken.wme)
else:
valueInTokenWme = reference.reference.toValue(wme)
# get the value in current wme there variable must have the same value
varValues[fakeName] = valueInTokenWme
# create a new FunctionEnv for function execution
# network, modulesManager and RESOURCES are not valid values
# because all functions that use knoledge about the network configuration
# have to raise exception if called
from myclips.functions import FunctionEnv
theEnv = FunctionEnv(varValues, None, None, None)
# execute the function and get back the result
theReturnValue = self.function.funcDefinition.linkedType.__class__.execute(
self.function.funcDefinition.linkedType, theEnv,
*(self.function.funcArgs))
if isinstance(theReturnValue,
types.Symbol) and theReturnValue.pyEqual("FALSE"):
return False
else:
return True
except KeyError:
# it's ok. If a catch this exception
# means that the wme has not an index at all
# so no value can be tested.
# This make the test fail
return False
except Exception, e:
# Another type of exception catch
# better log this
myclips.logger.warning(
"Unexpected exception catch in %s: token=%s, wme=%s, exception=%s",
self, token, wme, repr(e))
#import traceback
#import sys
#traceback.print_stack(file=sys.stderr)
# anyway test failed
return False
