text: #!/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 sys
  from resource_management import *
  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 hbase import hbase
  from hbase_service import hbase_service
  import upgrade
  from setup_ranger_hbase import setup_ranger_hbase
  from ambari_commons import OSCheck, OSConst
  from ambari_commons.os_family_impl import OsFamilyImpl
  
  
  class HbaseRegionServer(Script):
    def install(self, env):
      import params
      env.set_params(params)
      self.install_packages(env)
  
    def configure(self, env):
      import params
      env.set_params(params)
      hbase(name='regionserver')
  
    def decommission(self, env):
      print "Decommission not yet implemented!"
  
  
  
  @OsFamilyImpl(os_family=OSConst.WINSRV_FAMILY)
  class HbaseRegionServerWindows(HbaseRegionServer):
    def start(self, env):
      import status_params
      self.configure(env)
      Service(status_params.hbase_regionserver_win_service_name, action="start")
  
    def stop(self, env):
      import status_params
      env.set_params(status_params)
      Service(status_params.hbase_regionserver_win_service_name, action="stop")
  
    def status(self, env):
      import status_params
      env.set_params(status_params)
      check_windows_service_status(status_params.hbase_regionserver_win_service_name)
  
  
  
  @OsFamilyImpl(os_family=OsFamilyImpl.DEFAULT)
  class HbaseRegionServerDefault(HbaseRegionServer):
    def get_component_name(self):
      return "hbase-regionserver"
  
    def pre_upgrade_restart(self, env, upgrade_type=None):
      import params
      env.set_params(params)
      upgrade.prestart(env, "hbase-regionserver")
  
    def post_upgrade_restart(self, env, upgrade_type=None):
      import params
      env.set_params(params)
      upgrade.post_regionserver(env)
  
    def start(self, env, upgrade_type=None):
      import params
      env.set_params(params)
      self.configure(env) # for security
      setup_ranger_hbase(upgrade_type=upgrade_type, service_name="hbase-regionserver")
      hbase_service( 'regionserver',
        action = 'start'
      )
  
    def stop(self, env, upgrade_type=None):
      import params
      env.set_params(params)
  
      hbase_service( 'regionserver',
        action = 'stop'
      )
  
    def status(self, env):
      import status_params
      env.set_params(status_params)
      pid_file = format("{pid_dir}/hbase-{hbase_user}-regionserver.pid")
      check_process_status(pid_file)
  
    def security_status(self, env):
      import status_params
  
      env.set_params(status_params)
      if status_params.security_enabled:
        props_value_check = {"hbase.security.authentication" : "kerberos",
                             "hbase.security.authorization": "true"}
        props_empty_check = ['hbase.regionserver.keytab.file',
                             'hbase.regionserver.kerberos.principal']
        props_read_check = ['hbase.regionserver.keytab.file']
        hbase_site_expectations = build_expectations('hbase-site', props_value_check, props_empty_check,
                                                     props_read_check)
  
        hbase_expectations = {}
        hbase_expectations.update(hbase_site_expectations)
  
        security_params = get_params_from_filesystem(status_params.hbase_conf_dir,
                                                     {'hbase-site.xml': FILE_TYPE_XML})
        result_issues = validate_security_config_properties(security_params, hbase_expectations)
        if not result_issues:  # If all validations passed successfully
          try:
            # Double check the dict before calling execute
            if ( 'hbase-site' not in security_params
                 or 'hbase.regionserver.keytab.file' not in security_params['hbase-site']
                 or 'hbase.regionserver.kerberos.principal' not in security_params['hbase-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.hbase_user,
                                  security_params['hbase-site']['hbase.regionserver.keytab.file'],
                                  security_params['hbase-site']['hbase.regionserver.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"})
  
    def get_log_folder(self):
      import params
      return params.log_dir
    
    def get_user(self):
      import params
      return params.hbase_user
  
  if __name__ == "__main__":
    HbaseRegionServer().execute()
  