"""
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
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

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

"""

from resource_management import *
import os

config = Script.get_config()
hadoop_conf_dir = os.environ["HADOOP_CONF_DIR"]
hbase_conf_dir = os.environ["HBASE_CONF_DIR"]
hadoop_home = os.environ["HADOOP_HOME"]
#directories & files
dfs_name_dir = config['configurations']['hdfs-site']['dfs.namenode.name.dir']
fs_checkpoint_dir = config['configurations']['hdfs-site']['dfs.namenode.checkpoint.dir']
dfs_data_dir = config['configurations']['hdfs-site']['dfs.datanode.data.dir']
#decomission
hdfs_exclude_file = default("/clusterHostInfo/decom_dn_hosts", [])
exclude_file_path = config['configurations']['hdfs-site']['dfs.hosts.exclude']
# HDFS High Availability properties
dfs_ha_enabled = False
dfs_ha_nameservices = default("/configurations/hdfs-site/dfs.nameservices", None)
dfs_ha_namenode_ids = default(format("/configurations/hdfs-site/dfs.ha.namenodes.{dfs_ha_nameservices}"), None)

namenode_id = None
namenode_rpc = None
hostname = config["hostname"]
if dfs_ha_namenode_ids:
  dfs_ha_namemodes_ids_list = dfs_ha_namenode_ids.split(",")
  dfs_ha_namenode_ids_array_len = len(dfs_ha_namemodes_ids_list)
  if dfs_ha_namenode_ids_array_len > 1:
    dfs_ha_enabled = True
if dfs_ha_enabled:
  for nn_id in dfs_ha_namemodes_ids_list:
    nn_host = config['configurations']['hdfs-site'][format('dfs.namenode.rpc-address.{dfs_ha_nameservices}.{nn_id}')]
    if hostname in nn_host:
      namenode_id = nn_id
      namenode_rpc = nn_host

hdfs_user = "hadoop"

grep_exe = "findstr"

name_node_params = default("/commandParams/namenode", None)
