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LSST Data Management Base Package
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delete_cassandra.py
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1# This file is part of dax_apdb
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (https://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <https://www.gnu.org/licenses/>.
21
22from __future__ import annotations
23
24__all__ = ["delete_cassandra"]
25
26from ..cassandra import ApdbCassandra
27
28
29def delete_cassandra(host: str, keyspace: str, confirm: bool) -> None:
30 """Delete APDB instance from Cassandra cluster.
31
32 Parameters
33 ----------
34 host : `str`
35 Name of one of the hosts in Cassandra cluster.
36 keyspace : `str`
37 Cassandra keyspace name containing APDB tables.
38 confirm : `bool`
39 If True do not ask for confirmation.
40 """
41 if not confirm:
42 try:
43 answer = input(f"Type 'yes' to confirm deletion of keyspace {keyspace!r} and all of its data: ")
44 if answer != "yes":
45 return
46 except EOFError:
47 return
48 ApdbCassandra.delete_database(host=host, keyspace=keyspace)