text: # -*- coding: utf-8 -*-
  # Licensed to the StackStorm, Inc ('StackStorm') 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 ast
  import json
  
  import six
  
  from st2common.util.compat import to_unicode
  
  
  def _cast_object(x):
      """
      Method for casting string to an object (dict) or array.
  
      Note: String can be either serialized as JSON or a raw Python output.
      """
      if isinstance(x, six.string_types):
          try:
              return json.loads(x)
          except:
              return ast.literal_eval(x)
      else:
          return x
  
  
  def _cast_boolean(x):
      if isinstance(x, six.string_types):
          return ast.literal_eval(x.capitalize())
  
      return x
  
  
  # These types as they appear in json schema.
  CASTS = {
      'array': _cast_object,
      'boolean': _cast_boolean,
      'integer': int,
      'number': float,
      'object': _cast_object,
      'string': to_unicode
  }
  
  
  def get_cast(cast_type):
      """
      Determines the callable which will perform the cast given a string representation
      of the type.
  
      :param cast_type: Type of the cast to perform.
      :type cast_type: ``str``
  
      :rtype: ``callable``
      """
      return CASTS.get(cast_type, None)
  