superset2/superset/tasks/async_queries.py

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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

import logging
from typing import Any, cast, Dict, Optional

from flask import current_app

from superset import app
from superset.exceptions import SupersetVizException
from superset.extensions import async_query_manager, cache_manager, celery_app
from superset.utils.cache import generate_cache_key, set_and_log_cache
from superset.views.utils import get_datasource_info, get_viz

logger = logging.getLogger(__name__)
query_timeout = current_app.config[
    "SQLLAB_ASYNC_TIME_LIMIT_SEC"
]  # TODO: new config key


@celery_app.task(name="load_chart_data_into_cache", soft_time_limit=query_timeout)
def load_chart_data_into_cache(
    job_metadata: Dict[str, Any], form_data: Dict[str, Any],
) -> None:
    from superset.charts.commands.data import (
        ChartDataCommand,
    )  # load here due to circular imports

    with app.app_context():  # type: ignore
        try:
            command = ChartDataCommand()
            command.set_query_context(form_data)
            result = command.run(cache=True)
            cache_key = result["cache_key"]
            result_url = f"/api/v1/chart/data/{cache_key}"
            async_query_manager.update_job(
                job_metadata, async_query_manager.STATUS_DONE, result_url=result_url,
            )
        except Exception as exc:
            # TODO: QueryContext should support SIP-40 style errors
            error = exc.message if hasattr(exc, "message") else str(exc)  # type: ignore # pylint: disable=no-member
            errors = [{"message": error}]
            async_query_manager.update_job(
                job_metadata, async_query_manager.STATUS_ERROR, errors=errors
            )
            raise exc

        return None


@celery_app.task(name="load_explore_json_into_cache", soft_time_limit=query_timeout)
def load_explore_json_into_cache(
    job_metadata: Dict[str, Any],
    form_data: Dict[str, Any],
    response_type: Optional[str] = None,
    force: bool = False,
) -> None:
    with app.app_context():  # type: ignore
        cache_key_prefix = "ejr-"  # ejr: explore_json request
        try:
            datasource_id, datasource_type = get_datasource_info(None, None, form_data)

            viz_obj = get_viz(
                datasource_type=cast(str, datasource_type),
                datasource_id=datasource_id,
                form_data=form_data,
                force=force,
            )
            # run query & cache results
            payload = viz_obj.get_payload()
            if viz_obj.has_error(payload):
                raise SupersetVizException(errors=payload["errors"])

            # cache form_data for async retrieval
            cache_value = {"form_data": form_data, "response_type": response_type}
            cache_key = generate_cache_key(cache_value, cache_key_prefix)
            set_and_log_cache(cache_manager.cache, cache_key, cache_value)
            result_url = f"/superset/explore_json/data/{cache_key}"
            async_query_manager.update_job(
                job_metadata, async_query_manager.STATUS_DONE, result_url=result_url,
            )
        except Exception as exc:
            if isinstance(exc, SupersetVizException):
                errors = exc.errors  # pylint: disable=no-member
            else:
                error = (
                    exc.message if hasattr(exc, "message") else str(exc)  # type: ignore # pylint: disable=no-member
                )
                errors = [error]

            async_query_manager.update_job(
                job_metadata, async_query_manager.STATUS_ERROR, errors=errors
            )
            raise exc

        return None