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from airflow.hooks.jdbc_hook import JdbcHook
from airflow.models import BaseOperator
from airflow.utils.decorators import apply_defaults
[docs]class JdbcOperator(BaseOperator):
"""
Executes sql code in a database using jdbc driver.
Requires jaydebeapi.
:param sql: the sql code to be executed. (templated)
:type sql: Can receive a str representing a sql statement,
a list of str (sql statements), or reference to a template file.
Template reference are recognized by str ending in '.sql'
:param jdbc_conn_id: reference to a predefined database
:type jdbc_conn_id: str
:param autocommit: if True, each command is automatically committed.
(default value: False)
:type autocommit: bool
:param parameters: (optional) the parameters to render the SQL query with.
:type parameters: mapping or iterable
"""
[docs] template_fields = ('sql',)
[docs] template_ext = ('.sql',)
@apply_defaults
def __init__(
self, sql,
jdbc_conn_id='jdbc_default', autocommit=False, parameters=None,
*args, **kwargs):
super(JdbcOperator, self).__init__(*args, **kwargs)
self.parameters = parameters
self.sql = sql
self.jdbc_conn_id = jdbc_conn_id
self.autocommit = autocommit
[docs] def execute(self, context):
self.log.info('Executing: %s', self.sql)
self.hook = JdbcHook(jdbc_conn_id=self.jdbc_conn_id)
self.hook.run(self.sql, self.autocommit, parameters=self.parameters)