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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Author:: Seth Falcon (<seth@opscode.com>)
# Copyright:: Copyright 2008-2010 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.

class Chef
  # == Chef::Exceptions
  # Chef's custom exceptions are all contained within the Chef::Exceptions
  # namespace.
  class Exceptions
    class Application < RuntimeError; end
    class Cron < RuntimeError; end
    class Env < RuntimeError; end
    class Exec < RuntimeError; end
    class ErlCall < RuntimeError; end
    class FileNotFound < RuntimeError; end
    class Package < RuntimeError; end
    class Service < RuntimeError; end
    class Route < RuntimeError; end
    class SearchIndex < RuntimeError; end
    class Override < RuntimeError; end
    class UnsupportedAction < RuntimeError; end
    class MissingLibrary < RuntimeError; end
    class MissingRole < RuntimeError; end
    class CannotDetermineNodeName < RuntimeError; end
    class User < RuntimeError; end
    class Group < RuntimeError; end
    class Link < RuntimeError; end
    class Mount < RuntimeError; end
    class CouchDBNotFound < RuntimeError; end
    class PrivateKeyMissing < RuntimeError; end
    class CannotWritePrivateKey < RuntimeError; end
    class RoleNotFound < RuntimeError; end
    class ValidationFailed < ArgumentError; end
    class InvalidPrivateKey < ArgumentError; end
    class ConfigurationError < ArgumentError; end
    class RedirectLimitExceeded < RuntimeError; end
    class AmbiguousRunlistSpecification < ArgumentError; end
    class CookbookNotFound < RuntimeError; end
    # Cookbook loader used to raise an argument error when cookbook not found.
    # for back compat, need to raise an error that inherits from ArgumentError
    class CookbookNotFoundInRepo < ArgumentError; end
    class AttributeNotFound < RuntimeError; end
    class InvalidCommandOption < RuntimeError; end
    class CommandTimeout < RuntimeError; end
    class ShellCommandFailed < RuntimeError; end
    class RequestedUIDUnavailable < RuntimeError; end
    class InvalidHomeDirectory < ArgumentError; end
    class DsclCommandFailed < RuntimeError; end
    class UserIDNotFound < ArgumentError; end
    class GroupIDNotFound < ArgumentError; end
    class InvalidResourceReference < RuntimeError; end
    class ResourceNotFound < RuntimeError; end
    class InvalidResourceSpecification < ArgumentError; end
    class SolrConnectionError < RuntimeError; end
    class IllegalChecksumRevert < RuntimeError; end
    class CookbookVersionNameMismatch < ArgumentError; end
    class MissingParentDirectory < RuntimeError; end
    class UnresolvableGitReference < RuntimeError; end
    class InvalidEnvironmentRunListSpecification < ArgumentError; end
    class InvalidDataBagItemID < ArgumentError; end
    class InvalidDataBagName < ArgumentError; end
    class EnclosingDirectoryDoesNotExist < ArgumentError; end

    class ObsoleteDependencySyntax < ArgumentError; end

    # A different version of a cookbook was added to a
    # VersionedRecipeList than the one already there.
    class CookbookVersionConflict < ArgumentError ; end

    # does not follow X.Y.Z format. ArgumentError?
    class InvalidCookbookVersion < ArgumentError; end

    # version constraint should be a string or array, or it doesn't
    # match OP VERSION. ArgumentError?
    class InvalidVersionConstraint < ArgumentError; end

    class CookbookVersionSelection

      # Compound exception: In run_list expansion and resolution,
      # run_list items referred to cookbooks that don't exist and/or
      # have no versions available.
      class InvalidRunListItems < StandardError
        attr_reader :non_existent_cookbooks
        attr_reader :cookbooks_with_no_matching_versions

        def initialize(message, non_existent_cookbooks, cookbooks_with_no_matching_versions)
          super(message)

          @non_existent_cookbooks = non_existent_cookbooks
          @cookbooks_with_no_matching_versions = cookbooks_with_no_matching_versions
        end

        def to_json(*a)
          result = {
            "message" => message,
            "non_existent_cookbooks" => non_existent_cookbooks,
            "cookbooks_with_no_versions" => cookbooks_with_no_matching_versions
          }
          result.to_json(*a)
        end
      end

      # In run_list expansion and resolution, a constraint was
      # unsatisfiable.
      #
      # This exception may not be the complete error report. If you
      # resolve the misconfiguration represented by this exception and
      # re-solve, you may get another exception
      class UnsatisfiableRunListItem < StandardError
        attr_reader :run_list_item
        attr_reader :non_existent_cookbooks, :most_constrained_cookbooks

        # most_constrained_cookbooks: if I were to remove constraints
        # regarding these cookbooks, I would get a solution or move on
        # to the next error (deeper in the graph). An item in this list
        # may be unsatisfiable, but when resolved may also reveal
        # further unsatisfiable constraints; this condition would not be
        # reported.
        def initialize(message, run_list_item, non_existent_cookbooks, most_constrained_cookbooks)
          super(message)

          @run_list_item = run_list_item
          @non_existent_cookbooks = non_existent_cookbooks
          @most_constrained_cookbooks = most_constrained_cookbooks
        end

        def to_json(*a)
          result = {
            "message" => message,
            "unsatisfiable_run_list_item" => run_list_item,
            "non_existent_cookbooks" => non_existent_cookbooks,
            "most_constrained_cookbooks" => most_constrained_cookbooks
          }
          result.to_json(*a)
        end
      end
    end
  end
end