def goodbye_intent_handler(intent_request, session_attributes):
session_attributes['greetingCount'] = '0'
session_attributes['resetCount'] = '0'
session_attributes['queryAttributes'] = None
session_attributes['lastIntent'] = None
askCount = helpers.increment_counter(session_attributes, 'finishedCount')
# build response string
if askCount == 1:
response_string = 'Nice chatting with you. Talk to you later!'
elif askCount == 2:
response_string = 'Bye now!'
elif askCount == 3:
response_string = 'Hope I was able to help!'
elif askCount == 4:
response_string = 'See ya!'
elif askCount == 5:
response_string = 'Really?'
else:
response_string = 'Ok'
slot_values = {key: None for key in ihbot.SLOT_CONFIG}
helpers.remember_slot_values(slot_values, session_attributes)
return helpers.close(session_attributes, 'Fulfilled', {
'contentType': 'PlainText',
'content': response_string
})
def lambda_handler(event, context):
logger.debug('<<IHBot>> Lex event info = ' + json.dumps(event))
session_attributes = event['sessionAttributes']
logger.debug('<<IHBot>> lambda_handler: session_attributes = ' + json.dumps(session_attributes))
config_error = helpers.get_ihbot_config()
if config_error is not None:
return helpers.close(session_attributes, 'Fulfilled',
{'contentType': 'PlainText', 'content': config_error})
else:
return compare_intent_handler(event, session_attributes)
def hello_intent_handler(intent_request, session_attributes):
session_attributes['resetCount'] = '0'
session_attributes['finishedCount'] = '0'
# don't alter session_attributes['lastIntent'], let IHBot remember the last used intent
askCount = helpers.increment_counter(session_attributes, 'greetingCount')
# build response string
if askCount == 1: response_string = "Hello! How can I help?"
elif askCount == 2: response_string = "I'm here"
elif askCount == 3: response_string = "I'm listening"
elif askCount == 4: response_string = "Yes?"
elif askCount == 5: response_string = "Really?"
else: response_string = 'Ok'
return helpers.close(session_attributes, 'Fulfilled', {
'contentType': 'PlainText',
'content': response_string
})
def compare_intent_handler(intent_request, session_attributes):
method_start = time.perf_counter()
logger.debug('<<IHBot>> compare_intent_handler: session_attributes = ' + json.dumps(session_attributes))
session_attributes['greetingCount'] = '1'
session_attributes['resetCount'] = '0'
session_attributes['finishedCount'] = '0'
session_attributes['lastIntent'] = None # "switch" handling done in Compare_Intent
# Retrieve slot values from the current request
slot_values = session_attributes.get('slot_values')
try:
slot_values = helpers.get_slot_values(slot_values, intent_request)
except ihbot.SlotError as err:
return helpers.close(session_attributes, 'Fulfilled', {'contentType': 'PlainText','content': str(err)})
logger.debug('<<IHBot>> "count_intent_handler(): slot_values: %s', slot_values)
# Retrieve "remembered" slot values from session attributes
slot_values = helpers.get_remembered_slot_values(slot_values, session_attributes)
logger.debug('<<IHBot>> "count_intent_handler(): slot_values afer get_remembered_slot_values: %s', slot_values)
# Remember updated slot values
helpers.remember_slot_values(slot_values, session_attributes)
for key,config in COMPARE_CONFIG.items():
if slot_values.get(config['1st']):
if slot_values.get(config['2nd']) is None:
return helpers.close(session_attributes, 'Fulfilled', {'contentType': 'PlainText', 'content': config['error'] })
slot_values['dimension'] = key
slot_values[ihbot.DIMENSIONS[key]['slot']] = None
the_1st_dimension_value = slot_values[config['1st']].lower()
the_2nd_dimension_value = slot_values[config['2nd']].lower()
break
# Build and execute query
select_clause = COMPARE_SELECT.format(ihbot.DIMENSIONS[slot_values['dimension']]['column'])
where_clause = COMPARE_JOIN
the_1st_dimension_value = userexits.pre_process_query_value(ihbot.DIMENSIONS[key]['slot'], the_1st_dimension_value)
the_2nd_dimension_value = userexits.pre_process_query_value(ihbot.DIMENSIONS[key]['slot'], the_2nd_dimension_value)
where_clause += " AND (LOWER(" + ihbot.DIMENSIONS[slot_values['dimension']]['column'] + ") LIKE LOWER('%" + the_1st_dimension_value + "%') OR "
where_clause += "LOWER(" + ihbot.DIMENSIONS[slot_values['dimension']]['column'] + ") LIKE LOWER('%" + the_2nd_dimension_value + "%')) "
logger.debug('<<IHBot>> compare_sales_intent_request - building WHERE clause')
for dimension in ihbot.DIMENSIONS:
slot_key = ihbot.DIMENSIONS.get(dimension).get('slot')
if slot_values[slot_key] is not None:
logger.debug('<<IHBot>> compare_sales_intent_request - calling userexits.pre_process_query_value(%s, %s)',
slot_key, slot_values[slot_key])
value = userexits.pre_process_query_value(slot_key, slot_values[slot_key])
where_clause += COMPARE_WHERE.format(ihbot.DIMENSIONS.get(dimension).get('column'), value)
order_by_group_by = COMPARE_ORDERBY.format(ihbot.DIMENSIONS[slot_values['dimension']]['column'])
query_string = select_clause + where_clause + order_by_group_by
logger.debug('<<IHBot>> Athena Query String = ' + query_string)
response = helpers.execute_athena_query(query_string)
# Build response string
response_string = ''
result_count = len(response['ResultSet']['Rows']) - 1
# add the English versions of the WHERE clauses
counter = 0
for dimension in ihbot.DIMENSIONS:
slot_key = ihbot.DIMENSIONS[dimension].get('slot')
logger.debug('<<IHBot>> pre compare_op_formatter[%s] = %s', slot_key, slot_values.get(slot_key))
if slot_values.get(slot_key) is not None:
# the DIMENSION_FORMATTERS perform a post-process function and then format the output
# Example: {... 'venue_state': {'format': ' in the state of {}', 'function': get_state_name}, ...}
if userexits.DIMENSION_FORMATTERS.get(slot_key) is not None:
output_text = userexits.DIMENSION_FORMATTERS[slot_key]['function'](slot_values.get(slot_key))
if counter == 0:
response_string += userexits.DIMENSION_FORMATTERS[slot_key]['format'].format(output_text)
else:
response_string += ', ' + userexits.DIMENSION_FORMATTERS[slot_key]['format'].lower().format(output_text)
counter += 1
logger.debug('<<IHBot>> compare_op_formatter[%s] = %s', slot_key, output_text)
if (result_count == 0):
if len(response_string) > 0:
response_string += ', '
response_string += "I didn't find any results for the " + slot_values['dimension']
response_string += " " + userexits.post_process_dimension_output(key, the_1st_dimension_value)
response_string += " and " + userexits.post_process_dimension_output(key, the_2nd_dimension_value) + "."
elif (result_count == 1):
if len(response_string) > 0:
response_string += ', there '
else:
response_string += 'There '
response_string += 'is only one ' + ihbot.DIMENSIONS[slot_values['dimension']]['singular'] + '.'
elif (result_count == 2):
# put the results into a dict for easier reference by name
result_set = {}
result_set.update( { response['ResultSet']['Rows'][1]['Data'][0]['VarCharValue'].lower() : [
response['ResultSet']['Rows'][1]['Data'][0]['VarCharValue'],
float(response['ResultSet']['Rows'][1]['Data'][1]['VarCharValue']) ] } )
result_set.update( { response['ResultSet']['Rows'][2]['Data'][0]['VarCharValue'].lower() : [
response['ResultSet']['Rows'][2]['Data'][0]['VarCharValue'],
float(response['ResultSet']['Rows'][2]['Data'][1]['VarCharValue']) ] } )
logger.debug('<<IHBot>> compare_intent_handler - result_set = %s', result_set)
the_1st_dimension_string = result_set[the_1st_dimension_value.lower()][0]
the_1st_dimension_string = userexits.post_process_dimension_output(key, the_1st_dimension_string)
the_2nd_dimension_string = result_set[the_2nd_dimension_value.lower()][0]
the_2nd_dimension_string = userexits.post_process_dimension_output(key, the_2nd_dimension_string)
if len(response_string) == 0:
response_string = 'Sales for ' + the_1st_dimension_string + ' were '
else:
response_string += ', sales for ' + the_1st_dimension_string + ' were '
the_1st_amount = result_set[the_1st_dimension_value.lower()][1]
the_2nd_amount = result_set[the_2nd_dimension_value.lower()][1]
the_1st_amount_formatted = '{:,.0f}'.format(the_1st_amount)
the_2nd_amount_formatted = '{:,.0f}'.format(the_2nd_amount)
if (the_1st_amount == the_2nd_amount):
response_string += 'the same as for ' + the_2nd_dimension_string + ', $' + the_2nd_amount_formatted
else:
if (the_1st_amount < the_2nd_amount):
percent_different = (the_1st_amount - the_2nd_amount) / the_2nd_amount * -1
higher_or_lower = 'lower'
else:
percent_different = (the_1st_amount - the_2nd_amount) / the_2nd_amount
higher_or_lower = 'higher'
response_string += '{:.0%}'.format(percent_different) + ' ' + higher_or_lower + ' than for ' + the_2nd_dimension_string
response_string += ': $' + the_1st_amount_formatted + ' as opposed to $' + the_2nd_amount_formatted + '.'
else: # >2, should not occur
response_string = 'I seem to have a problem, I got back ' + str(result_count) + ' ' + dimension + '.'
logger.debug('<<IHBot>> response_string = ' + response_string)
method_duration = time.perf_counter() - method_start
method_duration_string = 'method time = %.0f' % (method_duration * 1000) + ' ms'
logger.debug('<<IHBot>> "Method duration is: ' + method_duration_string)
return helpers.close(session_attributes, 'Fulfilled', {'contentType': 'PlainText','content': response_string})
def refresh_intent_handler(intent_request, session_attributes):
athena = boto3.client('athena')
session_attributes['lastIntent'] = None
# Build and execute query
logger.debug('<<IHBot>> Athena Query String = ' + REFRESH_QUERY)
st_values = []
response = helpers.execute_athena_query(REFRESH_QUERY)
logger.debug('<<IHBot>> query response = ' + json.dumps(response))
while len(response['ResultSet']['Rows']) > 0:
for item in response['ResultSet']['Rows']:
st_values.append({'value': item['Data'][0]['VarCharValue']})
logger.debug('<<IHBot>> appending: ' + item['Data'][0]['VarCharValue'])
try:
next_token = response['NextToken']
response = athena.get_query_results(QueryExecutionId=query_execution_id, NextToken=next_token, MaxResults=100)
logger.debug('<<IHBot>> additional query response = ' + json.dumps(response))
except KeyError:
break
logger.debug('<<IHBot>> "st_values = ' + pprint.pformat(st_values))
lex_models = boto3.client('lex-models')
response = lex_models.get_slot_type(name=REFRESH_SLOT, version='$LATEST')
logger.debug('<<IHBot>> "boto3 version = ' + boto3.__version__)
logger.debug('<<IHBot>> "Lex slot event_name = ' + pprint.pformat(response, indent=4))
logger.debug('<<IHBot>> "Lex slot event_name checksum = ' + response['checksum'])
logger.debug('<<IHBot>> "Lex slot event_name valueSelectionStrategy = ' + response['valueSelectionStrategy'])
try:
logger.debug('<<IHBot>> "st_values = ' + pprint.pformat(st_values))
st_checksum = response['checksum']
response = lex_models.put_slot_type(name=response['name'],
description=response['description'],
enumerationValues=st_values,
checksum=response['checksum'],
valueSelectionStrategy=response['valueSelectionStrategy']
)
except KeyError:
pass
response = lex_models.get_intent(name=REFRESH_INTENT, version='$LATEST')
logger.debug('<<IHBot>> Lex get-intent = ' + pprint.pformat(response, indent=4))
logger.debug('<<IHBot>> Lex get-intent keys = ' + pprint.pformat(response.keys()))
response = lex_models.put_intent(name=response['name'],
description=response['description'],
slots=response['slots'],
sampleUtterances=response['sampleUtterances'],
conclusionStatement=response['conclusionStatement'],
fulfillmentActivity=response['fulfillmentActivity'],
checksum=response['checksum']
)
response = lex_models.get_bot(name=REFRESH_BOT, versionOrAlias='$LATEST')
logger.debug('<<IHBot>> Lex bot = ' + pprint.pformat(response, indent=4))
response = lex_models.put_bot(name=REFRESH_BOT,
description=response['description'],
intents=response['intents'],
clarificationPrompt=response['clarificationPrompt'],
abortStatement=response['abortStatement'],
idleSessionTTLInSeconds=response['idleSessionTTLInSeconds'],
voiceId=response['voiceId'],
processBehavior='SAVE',
locale=response['locale'],
checksum=response['checksum'],
childDirected=response['childDirected']
)
logger.debug('<<IHBot>> Lex put bot = ' + pprint.pformat(response, indent=4))
response_string = "I've refreshed the events dimension from the database. Please rebuild me."
return helpers.close(session_attributes, 'Fulfilled', {'contentType': 'PlainText','content': response_string})