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# 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.
#

module Shell
  module Commands
    class ListSecurityCapabilities < Command
      def help
        <<-EOF
List supported security capabilities

Example:
    hbase> list_security_capabilities
EOF
      end

      def command
        list = admin.get_security_capabilities
        list.each do |s|
          puts s.getName
        end
        return list.map(&:getName)
      rescue Exception => e
        if e.to_s.include? 'UnsupportedOperationException'
          puts 'ERROR: Master does not support getSecurityCapabilities'
          return []
        end
        raise e
      end
    end
  end
end
