def in_started(self, message: Any, sender: RhasspyActor) -> None:
"""Handle messages in started state."""
if isinstance(message, RecognizeIntent):
intent = empty_intent()
intent["text"] = message.text
intent["speech_confidence"] = message.confidence
self.send(message.receiver or sender, IntentRecognized(intent))
def in_started(self, message: Any, sender: RhasspyActor) -> None:
"""Handle messages in started state."""
if isinstance(message, RecognizeIntent):
try:
self._logger.debug(self.command)
# Text -> STDIN -> STDOUT -> JSON
output = subprocess.run(
self.command,
check=True,
input=message.text.encode(),
stdout=subprocess.PIPE,
).stdout.decode()
intent = json.loads(output)
except Exception:
self._logger.exception("in_started")
intent = empty_intent()
intent["text"] = message.text
intent["raw_text"] = message.text
intent["speech_confidence"] = message.confidence
self.send(
message.receiver or sender,
IntentRecognized(intent, handle=message.handle),
)
def in_loaded(self, message: Any, sender: RhasspyActor) -> None:
"""Handle messages in loaded state."""
if isinstance(message, RecognizeIntent):
try:
self.load_graph()
# Assume lower case, white-space separated tokens
text = message.text
tokens = re.split(r"\s+", text)
if self.profile.get("intent.fsticuffs.ignore_unknown_words", True):
# Filter tokens
tokens = [w for w in tokens if w in self.words]
recognitions = recognize(
tokens, self.graph, fuzzy=self.fuzzy, stop_words=self.stop_words
)
assert recognitions, "No intent recognized"
# Use first intent
recognition = recognitions[0]
# Convert to JSON
intent = recognition.asdict()
except Exception:
self._logger.exception("in_loaded")
intent = empty_intent()
intent["speech_confidence"] = message.confidence
self.send(
message.receiver or sender,
IntentRecognized(intent, handle=message.handle),
)
def in_started(self, message: Any, sender: RhasspyActor) -> None:
"""Handle messages in started state."""
if isinstance(message, RecognizeIntent):
post_url = urljoin(self.hass_config["url"],
"api/conversation/process")
# Send to Home Assistant
kwargs = hass_request_kwargs(self.hass_config, self.pem_file)
kwargs["json"] = {"text": message.text}
if self.pem_file is not None:
kwargs["verify"] = self.pem_file
# POST to /api/conversation/process
response = requests.post(post_url, **kwargs)
response.raise_for_status()
response_json = response.json()
# Extract speech
if self.handle_speech:
speech = pydash.get(response_json, "speech.plain.speech", "")
if speech:
# Forward to TTS system
self._logger.debug("Handling speech")
self.send(sender, SpeakSentence(speech))
# Return empty intent since conversation doesn't give it to us
intent = empty_intent()
intent["text"] = message.text
intent["raw_text"] = message.text
intent["speech_confidence"] = message.confidence
self.send(message.receiver or sender, IntentRecognized(intent))
def recognize(self, text: str) -> Dict[str, Any]:
"""Use Adapt engine to recognize intent."""
# Get all intents
assert self.engine is not None, "Adapt engine not loaded"
intents = [
intent for intent in self.engine.determine_intent(text) if intent
]
if len(intents) > 0:
# Return the best intent only
intent = max(intents, key=lambda x: x.get("confidence", 0))
intent_type = intent["intent_type"]
entity_prefix = "{0}.".format(intent_type)
slots = {}
for key, value in intent.items():
if key.startswith(entity_prefix):
key = key[len(entity_prefix):]
slots[key] = value
# Try to match Rasa NLU format for future compatibility
return {
"text":
text,
"intent": {
"name": intent_type,
"confidence": intent.get("confidence", 0),
},
"entities": [{
"entity": name,
"value": value
} for name, value in slots.items()],
}
return empty_intent()
def recognize(self, text: str) -> Dict[str, Any]:
"""Find sentence with lowest string-edit distance."""
confidence = 0
if len(text) > 0:
assert self.examples is not None, "No examples JSON"
choices: Dict[str, Tuple[str, Dict[str, Any]]] = {}
with concurrent.futures.ProcessPoolExecutor() as executor:
future_to_name = {}
for intent_name, intent_examples in self.examples.items():
sentences = []
for example in intent_examples:
example_text = example.get("raw_text", example["text"])
logging.debug(example_text)
choices[example_text] = (example_text, example)
sentences.append(example_text)
future = executor.submit(_get_best_fuzzy, text, sentences)
future_to_name[future] = intent_name
# Process them as they complete
best_text = ""
best_score = None
for future in concurrent.futures.as_completed(future_to_name):
intent_name = future_to_name[future]
text, score = future.result()
if (best_score is None) or (score > best_score):
best_text = text
best_score = score
if best_text in choices:
confidence = (best_score / 100) if best_score else 1
if confidence >= self.min_confidence:
# (text, intent, slots)
best_text, best_intent = choices[best_text]
# Update confidence and return example intent
best_intent["intent"]["confidence"] = confidence
return best_intent
self._logger.warning(
"Intent did not meet confidence threshold: %s < %s",
confidence,
self.min_confidence,
)
# Empty intent
intent = empty_intent()
intent["text"] = text
intent["intent"]["confidence"] = confidence
return intent
def in_started(self, message: Any, sender: RhasspyActor) -> None:
"""Handle messages in started state."""
if isinstance(message, RecognizeIntent):
try:
intent = self.recognize(message.text)
except Exception:
self._logger.exception("in_started")
intent = empty_intent()
intent["text"] = message.text
intent["speech_confidence"] = message.confidence
self.send(
message.receiver or sender,
IntentRecognized(intent, handle=message.handle),
)
def recognize_fuzzy(self, text: str, eps: str = "<eps>") -> Dict[str, Any]:
"""Do fuzzy breadth-first search on FST as graph."""
from rhasspy.train.jsgf2fst import symbols2intent
# Assume lower case, white-space separated tokens
tokens = re.split(r"\s+", text)
if self.profile.get("intent.fsticuffs.ignore_unknown_words", True):
# Filter tokens
tokens = [w for w in tokens if w in self.words]
# Only run search if there are any tokens
intents = []
if len(tokens) > 0:
intent_symbols_and_costs = FsticuffsRecognizer._get_symbols_and_costs(
self.graph, tokens, stop_words=self.stop_words, eps=eps
)
for symbols, cost in intent_symbols_and_costs.values():
intent = symbols2intent(symbols, eps=eps)
intent["intent"]["confidence"] = (len(tokens) - cost) / len(tokens)
intents.append(intent)
intents = sorted(
intents, key=lambda i: i["intent"]["confidence"], reverse=True
)
self._logger.debug("Recognized %s intent(s)", len(intents))
# Use first intent
if len(intents) > 0:
intent = intents[0]
# Add slots
intent["slots"] = {}
for ev in intent["entities"]:
intent["slots"][ev["entity"]] = ev["value"]
# Add alternative intents
intent["intents"] = []
for other_intent in intents[1:]:
intent["intents"].append(other_intent)
self._logger.debug(intents)
else:
intent = empty_intent()
intent["text"] = text
return intent
def in_started(self, message: Any, sender: RhasspyActor) -> None:
"""Handle messages in started state."""
if isinstance(message, RecognizeIntent):
try:
intent = self.recognize(message.text)
intent["intent"]["name"] = intent["intent"]["name"] or ""
logging.debug(repr(intent))
except Exception:
self._logger.exception("in_started")
intent = empty_intent()
intent["text"] = message.text
intent["raw_text"] = message.text
self.send(
message.receiver or sender,
IntentRecognized(intent, handle=message.handle),
)
def recognize(self, text: str) -> Dict[str, Any]:
"""Run intent classifier and then named-entity recognizer."""
# pylint: disable=E0401
from flair.data import Sentence
intent = empty_intent()
sentence = Sentence(text)
assert self.intent_map is not None
if self.class_model is not None:
self.class_model.predict(sentence)
assert len(sentence.labels) > 0, "No intent predicted"
label = sentence.labels[0]
intent_id = label.value
intent["intent"]["confidence"] = label.score
else:
# Assume first intent
intent_id = next(iter(self.intent_map.keys()))
intent["intent"]["confidence"] = 1
intent["intent"]["name"] = self.intent_map[intent_id]
assert self.ner_models is not None
if intent_id in self.ner_models:
# Predict entities
self.ner_models[intent_id].predict(sentence)
ner_dict = sentence.to_dict(tag_type="ner")
for named_entity in ner_dict["entities"]:
intent["entities"].append({
"entity":
named_entity["type"],
"value":
named_entity["text"],
"start":
named_entity["start_pos"],
"end":
named_entity["end_pos"],
"confidence":
named_entity["confidence"],
})
return intent
def in_loaded(self, message: Any, sender: RhasspyActor) -> None:
"""Handle messages in loaded state."""
if isinstance(message, RecognizeIntent):
try:
self.load_fst()
if self.fuzzy:
# Fuzzy search
intent = self.recognize_fuzzy(message.text)
else:
# Strict search
intent = self.recognize(message.text)
except Exception:
self._logger.exception("in_loaded")
intent = empty_intent()
intent["speech_confidence"] = message.confidence
self.send(
message.receiver or sender,
IntentRecognized(intent, handle=message.handle),
)
