Source code for airflow.providers.neo4j.operators.neo4j

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from typing import Dict, Iterable, Mapping, Optional, Union

from airflow.models import BaseOperator
from airflow.providers.neo4j.hooks.neo4j import Neo4jHook
from airflow.utils.decorators import apply_defaults


[docs]class Neo4jOperator(BaseOperator):
    """
    Executes sql code in a specific Neo4j database

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:Neo4jOperator`

    :param sql: the sql code to be executed. Can receive a str representing a
        sql statement, a list of str (sql statements)
    :type sql: str or list[str]
    :param neo4j_conn_id: reference to a specific Neo4j database
    :type neo4j_conn_id: str
    """

    @apply_defaults
    def __init__(
        self,
        *,
        sql: str,
        neo4j_conn_id: str = 'neo4j_default',
        parameters: Optional[Union[Mapping, Iterable]] = None,
        **kwargs,
    ) -> None:
        super().__init__(**kwargs)
        self.neo4j_conn_id = neo4j_conn_id
        self.sql = sql
        self.parameters = parameters
        self.hook = None

[docs]    def get_hook(self):
        """Function to retrieve the Neo4j Hook."""
        return Neo4jHook(conn_id=self.neo4j_conn_id)

[docs]    def execute(self, context: Dict) -> None:
        self.log.info('Executing: %s', self.sql)
        self.hook = self.get_hook()
        self.hook.run(self.sql)