#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Copyright:: Copyright (c) 2012 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed 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.
#

require 'chef_fs/file_system/file_system_error'

module ChefFS
  module FileSystem
    class OperationNotAllowedError < FileSystemError
      def initialize(operation, entry, cause = nil)
        super(entry, cause)
        @operation = operation
      end

      attr_reader :operation
      attr_reader :entry

      def reason
        case operation
        when :delete
          "cannot be deleted"
        when :write
          "cannot be updated"
        when :create_child
          "cannot have a child created under it"
        when :read
          "cannot be read"
        end
      end
    end
  end
end
