#!/usr/bin/env python
"""
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.

"""

import os
from resource_management.libraries.functions import get_unique_id_and_date
from resource_management.libraries.functions.format import format
from resource_management.libraries.resources.execute_hadoop import ExecuteHadoop
from resource_management.core.source import StaticFile
from resource_management.core.resources.system import Execute, File
from ambari_commons.os_family_impl import OsFamilyFuncImpl, OsFamilyImpl
from ambari_commons import OSConst

def hcat_service_check():
    import params
    unique = get_unique_id_and_date()
    output_file = format("{hive_apps_whs_dir}/hcatsmoke{unique}")
    test_cmd = format("fs -test -e {output_file}")

    if params.security_enabled:
      kinit_cmd = format(
        "{kinit_path_local} -kt {smoke_user_keytab} {smokeuser_principal}; ")
    else:
      kinit_cmd = ""

    File(format("{tmp_dir}/hcatSmoke.sh"),
         content=StaticFile("hcatSmoke.sh"),
         mode=0755
    )

    prepare_cmd = format("{kinit_cmd}env JAVA_HOME={java64_home} {tmp_dir}/hcatSmoke.sh hcatsmoke{unique} prepare {purge_tables}")

    exec_path = params.execute_path
    if params.version and params.stack_root:
      upgrade_hive_bin = format("{stack_root}/{version}/hive/bin")
      exec_path =  os.environ['PATH'] + os.pathsep + params.hadoop_bin_dir + os.pathsep + upgrade_hive_bin

    Execute(prepare_cmd,
            tries=3,
            user=params.smokeuser,
            try_sleep=5,
            path=['/usr/sbin', '/usr/local/bin', '/bin', '/usr/bin', exec_path],
            logoutput=True)

    if params.security_enabled:
      Execute (format("{kinit_path_local} -kt {hdfs_user_keytab} {hdfs_principal_name}"),
               user = params.hdfs_user,
      )

    ExecuteHadoop(test_cmd,
                  user=params.hdfs_user,
                  logoutput=True,
                  conf_dir=params.hadoop_conf_dir,
                  bin_dir=params.execute_path
    )

    cleanup_cmd = format("{kinit_cmd} {tmp_dir}/hcatSmoke.sh hcatsmoke{unique} cleanup {purge_tables}")

    Execute(cleanup_cmd,
            tries=3,
            user=params.smokeuser,
            try_sleep=5,
            path=['/usr/sbin', '/usr/local/bin', '/bin', '/usr/bin', exec_path],
            logoutput=True)
