Source code for airflow.contrib.hooks.gcp_speech_to_text_hook

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from google.cloud.speech_v1 import SpeechClient

from airflow.contrib.hooks.gcp_api_base_hook import GoogleCloudBaseHook


[docs]class GCPSpeechToTextHook(GoogleCloudBaseHook): """ Hook for Google Cloud Speech API. :param gcp_conn_id: The connection ID to use when fetching connection info. :type gcp_conn_id: str :param delegate_to: The account to impersonate, if any. For this to work, the service account making the request must have domain-wide delegation enabled. :type delegate_to: str """
[docs] _client = None
def __init__(self, gcp_conn_id="google_cloud_default", delegate_to=None): super(GCPSpeechToTextHook, self).__init__(gcp_conn_id, delegate_to)
[docs] def get_conn(self): """ Retrieves connection to Cloud Speech. :return: Google Cloud Speech client object. :rtype: google.cloud.speech_v1.SpeechClient """ if not self._client: self._client = SpeechClient(credentials=self._get_credentials()) return self._client
@GoogleCloudBaseHook.quota_retry()
[docs] def recognize_speech(self, config, audio, retry=None, timeout=None): """ Recognizes audio input :param config: information to the recognizer that specifies how to process the request. https://googleapis.github.io/google-cloud-python/latest/speech/gapic/v1/types.html#google.cloud.speech_v1.types.RecognitionConfig :type config: dict or google.cloud.speech_v1.types.RecognitionConfig :param audio: audio data to be recognized https://googleapis.github.io/google-cloud-python/latest/speech/gapic/v1/types.html#google.cloud.speech_v1.types.RecognitionAudio :type audio: dict or google.cloud.speech_v1.types.RecognitionAudio :param retry: (Optional) A retry object used to retry requests. If None is specified, requests will not be retried. :type retry: google.api_core.retry.Retry :param timeout: (Optional) The amount of time, in seconds, to wait for the request to complete. Note that if retry is specified, the timeout applies to each individual attempt. :type timeout: float """ client = self.get_conn() response = client.recognize(config=config, audio=audio, retry=retry, timeout=timeout) self.log.info("Recognised speech: %s" % response) return response