Source code for airflow.contrib.operators.snowflake_operator

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from airflow.contrib.hooks.snowflake_hook import SnowflakeHook
from airflow.models import BaseOperator
from airflow.utils.decorators import apply_defaults

[docs]class SnowflakeOperator(BaseOperator): """ Executes sql code in a Snowflake database :param snowflake_conn_id: reference to specific snowflake connection id :type snowflake_conn_id: str :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 warehouse: name of warehouse (will overwrite any warehouse defined in the connection's extra JSON) :type warehouse: str :param database: name of database (will overwrite database defined in connection) :type database: str :param schema: name of schema (will overwrite schema defined in connection) :type schema: str :param role: name of role (will overwrite any role defined in connection's extra JSON) """
[docs] template_fields = ('sql',)
[docs] template_ext = ('.sql',)
[docs] ui_color = '#ededed'
@apply_defaults def __init__( self, sql, snowflake_conn_id='snowflake_default', parameters=None, autocommit=True, warehouse=None, database=None, role=None, schema=None, *args, **kwargs): super(SnowflakeOperator, self).__init__(*args, **kwargs) self.snowflake_conn_id = snowflake_conn_id self.sql = sql self.autocommit = autocommit self.parameters = parameters self.warehouse = warehouse self.database = database self.role = role self.schema = schema
[docs] def get_hook(self): return SnowflakeHook(snowflake_conn_id=self.snowflake_conn_id, warehouse=self.warehouse, database=self.database, role=self.role, schema=self.schema)
[docs] def execute(self, context):'Executing: %s', self.sql) hook = self.get_hook() self.sql, autocommit=self.autocommit, parameters=self.parameters)

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