text: """
  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 *
  from resource_management.libraries.functions import conf_select
  from resource_management.libraries.functions import hdp_select
  from resource_management.libraries.functions.version import compare_versions, \
    format_hdp_stack_version
  from resource_management.libraries.functions.format import format
  from resource_management.libraries.functions.security_commons import build_expectations, \
    cached_kinit_executor, get_params_from_filesystem, validate_security_config_properties, \
    FILE_TYPE_XML
  
  from utils import service
  from hdfs import hdfs
  import journalnode_upgrade
  from ambari_commons.os_family_impl import OsFamilyImpl
  from ambari_commons import OSConst
  
  class JournalNode(Script):
    def install(self, env):
      import params
      self.install_packages(env, params.exclude_packages)
      env.set_params(params)
  
  @OsFamilyImpl(os_family=OsFamilyImpl.DEFAULT)
  class JournalNodeDefault(JournalNode):
  
    def get_stack_to_component(self):
      return {"HDP": "hadoop-hdfs-journalnode"}
  
    def pre_upgrade_restart(self, env, upgrade_type=None):
      Logger.info("Executing Stack Upgrade pre-restart")
      import params
      env.set_params(params)
  
      if params.version and compare_versions(format_hdp_stack_version(params.version), '2.2.0.0') >= 0:
        conf_select.select(params.stack_name, "hadoop", params.version)
        hdp_select.select("hadoop-hdfs-journalnode", params.version)
  
    def start(self, env, upgrade_type=None):
      import params
  
      env.set_params(params)
      self.configure(env)
      service(
        action="start", name="journalnode", user=params.hdfs_user,
        create_pid_dir=True,
        create_log_dir=True
      )
  
    def post_upgrade_restart(self, env, upgrade_type=None):
      if upgrade_type == "nonrolling":
        return
  
      Logger.info("Executing Stack Upgrade post-restart")
      import params
      env.set_params(params)
      journalnode_upgrade.post_upgrade_check()
  
    def stop(self, env, upgrade_type=None):
      import params
  
      env.set_params(params)
      service(
        action="stop", name="journalnode", user=params.hdfs_user,
        create_pid_dir=True,
        create_log_dir=True
      )
  
    def configure(self, env):
      import params
  
      Directory(params.jn_edits_dir,
                recursive=True,
                cd_access="a",
                owner=params.hdfs_user,
                group=params.user_group
      )
      env.set_params(params)
      hdfs()
      pass
  
    def status(self, env):
      import status_params
  
      env.set_params(status_params)
      check_process_status(status_params.journalnode_pid_file)
  
    def security_status(self, env):
      import status_params
  
      env.set_params(status_params)
      props_value_check = {"hadoop.security.authentication": "kerberos",
                           "hadoop.security.authorization": "true"}
      props_empty_check = ["hadoop.security.auth_to_local"]
      props_read_check = None
      core_site_expectations = build_expectations('core-site', props_value_check, props_empty_check,
                                                  props_read_check)
  
      props_value_check = None
      props_empty_check = ['dfs.journalnode.keytab.file',
                           'dfs.journalnode.kerberos.principal']
      props_read_check = ['dfs.journalnode.keytab.file']
      hdfs_site_expectations = build_expectations('hdfs-site', props_value_check, props_empty_check,
                                                  props_read_check)
  
      hdfs_expectations = {}
      hdfs_expectations.update(hdfs_site_expectations)
      hdfs_expectations.update(core_site_expectations)
  
      security_params = get_params_from_filesystem(status_params.hadoop_conf_dir,
                                                   {'core-site.xml': FILE_TYPE_XML})
      if 'core-site' in security_params and 'hadoop.security.authentication' in security_params['core-site'] and \
          security_params['core-site']['hadoop.security.authentication'].lower() == 'kerberos':
        result_issues = validate_security_config_properties(security_params, hdfs_expectations)
        if not result_issues:  # If all validations passed successfully
          try:
            # Double check the dict before calling execute
            if ('hdfs-site' not in security_params or
                    'dfs.journalnode.kerberos.keytab.file' not in security_params['hdfs-site'] or
                    'dfs.journalnode.kerberos.principal' not in security_params['hdfs-site']):
              self.put_structured_out({"securityState": "UNSECURED"})
              self.put_structured_out(
                {"securityIssuesFound": "Keytab file or principal are not set property."})
              return
  
            cached_kinit_executor(status_params.kinit_path_local,
                                  status_params.hdfs_user,
                                  security_params['hdfs-site']['dfs.journalnode.kerberos.keytab.file'],
                                  security_params['hdfs-site']['dfs.journalnode.kerberos.principal'],
                                  status_params.hostname,
                                  status_params.tmp_dir)
            self.put_structured_out({"securityState": "SECURED_KERBEROS"})
          except Exception as e:
            self.put_structured_out({"securityState": "ERROR"})
            self.put_structured_out({"securityStateErrorInfo": str(e)})
        else:
          issues = []
          for cf in result_issues:
            issues.append("Configuration file %s did not pass the validation. Reason: %s" % (cf, result_issues[cf]))
          self.put_structured_out({"securityIssuesFound": ". ".join(issues)})
          self.put_structured_out({"securityState": "UNSECURED"})
      else:
        self.put_structured_out({"securityState": "UNSECURED"})
  
  @OsFamilyImpl(os_family=OSConst.WINSRV_FAMILY)
  class JournalNodeWindows(JournalNode):
    def install(self, env):
      import install_params
      self.install_packages(env, install_params.exclude_packages)
  
    def start(self, env):
      import params
      self.configure(env)
      Service(params.journalnode_win_service_name, action="start")
  
    def stop(self, env):
      import params
      Service(params.journalnode_win_service_name, action="stop")
  
    def configure(self, env):
      import params
      env.set_params(params)
      hdfs("journalnode")
      pass
  
    def status(self, env):
      import status_params
      env.set_params(status_params)
      check_windows_service_status(status_params.journalnode_win_service_name)
  
  if __name__ == "__main__":
    JournalNode().execute()
  