def _get_slot_value(self, slot):
'''Get value describing user intention for the given slot.
Raises:
RuntimeError: Cant find value for the given slot.
'''
item = DialogueActItem()
if slot in self.goal.keys():
return self.goal[slot]
if slot not in self.goal.keys():#required slot not in goal
eq_slots = self._get_equivalent_slots(slot)
for s in eq_slots:#gen value from a equivalent slot
if s in self.goal.keys():
slot = s
break
if slot not in self.goal.keys():#dont have compatible slots, get from default values
value = self._get_default_slot_value(slot)
if value is not None:
item.value = value
else:
for s in eq_slots:#get default of equivalent slots
value = self._get_default_slot_value(s)
if value is not None:
item.value = value
item.name = s
if item.value is None:
#raise RuntimeError('Cant find value for slot %s and its equivalents slot from goal and default slots'%slot)
print '!!!!!!???set to None, Cant find value for slot [%s] and its equivalents slot from goal and default slots'%slot
item.value = None
else:
item.value=self.goal[slot]
item.name = slot
return item.value
def _build_dialogue_act_items(self, act_in, act_out, answer_type, overridden_properties):
'''Build return acts for a type of answer act.
Args:
act_in: The metadata presenting the system act such as slots-values
act_out: A string figure out the type of answer act such as inform or affirm
answer_type: A string describe answer type which can be whether direct answer, over answer or complete answer.
overridden_properties: A dict of properties which will used to override the default setting of return act.
Returns:
A list of DialogueActItem object.
Raises:
RuntiemError: Cant find value for a slot which requires, in setting, a value must be filled.
NotImplementedError: The source providing value for a slot was not implemented.
'''
#print act_in
#print '---building', act_out
#print answer_type
if act_out not in self.act_used_slots.keys():#saving this action used this slot
self.act_used_slots[act_out] = set()
act_out_des = self.metadata['dialogue_act_definitions'][act_out]
act_out_des = self._override_act_descriptions(overridden_properties, act_out_des)
#print 'act_out_des_override'
#iprint(act_out_des)
da_items = []
combined_slots = self._get_combined_slots(act_in, act_out_des, answer_type, self.act_used_slots[act_out])
for slot in combined_slots:
item = DialogueActItem()
item.dat = act_out
if act_out_des['slot_included']:
item.name = slot
if act_out_des['value_included']:
if act_out_des['value_from']=='goal':
if slot not in self.goal.keys():#required slot not in goal
eq_slots = self._get_equivalent_slots(slot)
for s in eq_slots:#gen value from a equivalent slot
if s in self.goal.keys():
slot = s
break
if slot not in self.goal.keys():#dont have compatible slots, get from default values
value = self._get_default_slot_value(slot)
if value is not None:
item.value = value
else:
for s in eq_slots:#get default of equivalent slots
value = self._get_default_slot_value(s)
if value is not None:
item.value = value
item.name = s
break
if item.value is None:
raise RuntimeError('Cant find value for slot %s and its equivalents slot from goal and default slots'%slot)
else:
item.value=self.goal[slot]
item.name = slot
elif act_out_des['value_from']=='sys_da':
item.value = act_in['slot_value'][slot]
elif act_out_des['value_from']=='function':
item.value = act_out_des['value_fun']()
else:
raise NotImplementedError('value_from=%s unhandled yet'%act_out_des['value_from'])
self.act_used_slots[act_out].add(slot)#save to the list of used slot for this act_out
if item not in da_items:
da_items.append(item)
act_without_slot = False
if 'act_without_slot' in act_out_des.keys() and act_out_des['act_without_slot']:
act_without_slot = True
da_items.append(DialogueActItem(act_out))
if len(combined_slots)==0 and len(da_items)==0 and not act_without_slot:
#pass
print 'Not building act=%s since it requires slots and values but we cant find any slot, value for it'%act_out
#raise RuntimeError('Cant find any slot, value for the given dialogue act, %s'%act_out)
return da_items
