Source code for tests.system.providers.google.cloud.speech_to_text.example_speech_to_text

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from __future__ import annotations

import os
from datetime import datetime

from google.cloud.speech_v1 import RecognitionAudio, RecognitionConfig

from airflow.models.dag import DAG
from airflow.providers.google.cloud.operators.gcs import GCSCreateBucketOperator, GCSDeleteBucketOperator
from airflow.providers.google.cloud.operators.speech_to_text import CloudSpeechToTextRecognizeSpeechOperator
from airflow.providers.google.cloud.operators.text_to_speech import CloudTextToSpeechSynthesizeOperator
from airflow.utils.trigger_rule import TriggerRule


[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")


[docs]PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT")


[docs]DAG_ID = "speech_to_text"



[docs]BUCKET_NAME = f"bucket_{DAG_ID}_{ENV_ID}"


# [START howto_operator_speech_to_text_gcp_filename]

[docs]FILE_NAME = f"test-audio-file-{DAG_ID}-{ENV_ID}"

# [END howto_operator_speech_to_text_gcp_filename]

# [START howto_operator_text_to_speech_api_arguments]

[docs]INPUT = {"text": "Sample text for demo purposes"}


[docs]VOICE = {"language_code": "en-US", "ssml_gender": "FEMALE"}


[docs]AUDIO_CONFIG = {"audio_encoding": "LINEAR16"}

# [END howto_operator_text_to_speech_api_arguments]

# [START howto_operator_speech_to_text_api_arguments]

[docs]CONFIG = RecognitionConfig({"encoding": "LINEAR16", "language_code": "en_US"})


[docs]AUDIO = RecognitionAudio({"uri": f"gs://{BUCKET_NAME}/{FILE_NAME}"})

# [END howto_operator_speech_to_text_api_arguments]

with DAG(
    DAG_ID,
    schedule="@once",
    start_date=datetime(2021, 1, 1),
    catchup=False,
    tags=["example", "speech_to_text"],
) as dag:

[docs]    create_bucket = GCSCreateBucketOperator(task_id="create_bucket", bucket_name=BUCKET_NAME)


    text_to_speech_synthesize_task = CloudTextToSpeechSynthesizeOperator(
        project_id=PROJECT_ID,
        input_data=INPUT,
        voice=VOICE,
        audio_config=AUDIO_CONFIG,
        target_bucket_name=BUCKET_NAME,
        target_filename=FILE_NAME,
        task_id="text_to_speech_synthesize_task",
    )
    # [START howto_operator_speech_to_text_recognize]
    speech_to_text_recognize_task = CloudSpeechToTextRecognizeSpeechOperator(
        config=CONFIG, audio=AUDIO, task_id="speech_to_text_recognize_task"
    )
    # [END howto_operator_speech_to_text_recognize]

    delete_bucket = GCSDeleteBucketOperator(
        task_id="delete_bucket", bucket_name=BUCKET_NAME, trigger_rule=TriggerRule.ALL_DONE
    )

    (
        # TEST SETUP
        create_bucket
        # TEST BODY
        >> text_to_speech_synthesize_task
        >> speech_to_text_recognize_task
        # TEST TEARDOWN
        >> delete_bucket
    )

    from tests.system.utils.watcher import watcher

    # This test needs watcher in order to properly mark success/failure
    # when "tearDown" task with trigger rule is part of the DAG
    list(dag.tasks) >> watcher()


from tests.system.utils import get_test_run  # noqa: E402

# Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)

[docs]test_run = get_test_run(dag)

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