text: # -*- coding: utf-8 -*-
  #!/usr/bin/env python
  #
  # Copyright 2016-2019 BigML
  #
  # 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.
  
  """Base class for topicdistributions' REST calls
  
     https://bigml.com/api/topic_distributions
  
  """
  
  try:
      import simplejson as json
  except ImportError:
      import json
  
  
  from bigml.resourcehandler import ResourceHandler
  from bigml.resourcehandler import (check_resource_type,
                                     get_resource_type,
                                     get_topic_distribution_id,
                                     check_resource, get_topic_model_id)
  from bigml.constants import (TOPIC_DISTRIBUTION_PATH, TINY_RESOURCE)
  
  
  class TopicDistributionHandler(ResourceHandler):
      """This class is used by the BigML class as
         a mixin that provides the REST calls models. It should not
         be instantiated independently.
  
      """
      def __init__(self):
          """Initializes the TopicDistributionHandler. This class is intended to
             be used as a mixin on ResourceHandler, that inherits its
             attributes and basic method from BigMLConnection, and must not be
             instantiated independently.
  
          """
          self.topic_distribution_url = self.url + TOPIC_DISTRIBUTION_PATH
  
      def create_topic_distribution(self, topic_model, input_data=None,
                                    args=None, wait_time=3, retries=10):
          """Creates a new topic distribution.
  
          """
          topic_model_id = get_topic_model_id(topic_model)
          if topic_model_id is not None:
              check_resource(topic_model_id,
                             query_string=TINY_RESOURCE,
                             wait_time=wait_time, retries=retries,
                             raise_on_error=True, api=self)
          else:
              resource_type = get_resource_type(topic_model)
              raise Exception("A topic model id is needed to create a"
                              " topic distribution. %s found." % resource_type)
  
          if input_data is None:
              input_data = {}
          create_args = {}
          if args is not None:
              create_args.update(args)
          create_args.update({
              "input_data": input_data,
              "topicmodel": topic_model_id})
  
          body = json.dumps(create_args)
          return self._create(self.topic_distribution_url, body,
                              verify=self.verify_prediction)
  
      def get_topic_distribution(self, topic_distribution, query_string=''):
          """Retrieves a topic distribution.
  
          """
          check_resource_type(topic_distribution, TOPIC_DISTRIBUTION_PATH,
                              message="A topic distribution id is needed.")
          topic_distribution_id = get_topic_distribution_id(topic_distribution)
          if topic_distribution_id:
              return self._get("%s%s" % (self.url, topic_distribution_id),
                               query_string=query_string)
  
      def list_topic_distributions(self, query_string=''):
          """Lists all your topic distributions.
  
          """
          return self._list(self.topic_distribution_url, query_string)
  
      def update_topic_distribution(self, topic_distribution, changes):
          """Updates a topic distribution.
  
          """
          check_resource_type(topic_distribution, TOPIC_DISTRIBUTION_PATH,
                              message="A topic distribution id is needed.")
          topic_distribution_id = get_topic_distribution_id(topic_distribution)
          if topic_distribution_id:
              body = json.dumps(changes)
              return self._update("%s%s" % \
                  (self.url, topic_distribution_id), body)
  
      def delete_topic_distribution(self, topic_distribution):
          """Deletes a topic distribution.
  
          """
          check_resource_type(topic_distribution, TOPIC_DISTRIBUTION_PATH,
                              message="A topic distribution id is needed.")
          topic_distribution_id = get_topic_distribution_id(topic_distribution)
          if topic_distribution_id:
              return self._delete("%s%s" % (self.url, topic_distribution_id))
  