Class: Stratagem::AutoMock::Aquifer

Inherits:
Object
  • Object
show all
Includes:
Singleton, Factory, UserLoader
Defined in:
lib/stratagem/auto_mock/aquifer.rb

Constant Summary

Constants included from ValueGenerator

ValueGenerator::ADDRESSES, ValueGenerator::GENERIC_NAMES, ValueGenerator::GENERIC_URLS, ValueGenerator::NUMERIC_TYPES, ValueGenerator::USERS

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from UserLoader

#load_user_from_configuration, #matching_credentials

Methods included from Factory

#add_mocked, #mock, #mock_attributes

Methods included from ValueGenerator

#generate_boolean, #generate_datetime, #generate_float, #generate_int, #generate_string, #generate_text, #generate_value

Instance Attribute Details

#application ⇒ Object

Returns the value of attribute application.



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 9

def application
  @application
end

Class Method Details

.init(application) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 11

def self.init(application)
  at_exit { self.instance.destroy }
  self.instance.application = application
  self.instance
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 17

def clear
  if (Stratagem.configuration.use_automatic_mocking)
    objects = self.repo.values.inject([]) {|memo,obj| memo += obj.compact }
    i = 0
    while (objects.size > 0 && ((i+=1) < objects.size))
      objects = objects.select do |instance|
        next if (pre_existing_object_ids[instance.class] || []).include?(instance.id)
        puts "deleting #{instance.class.name} - #{instance.id}"
        begin
          instance.destroy
        rescue
          begin
            instance.delete
          rescue
            puts "Unable to delete object: #{instance.class.name} - #{$!.message}"
            Stratagem.logger.error($!)
          end
        end
        !instance.frozen?
      end
    end
  end
  self.repo.clear
end

#destroy ⇒ Object

def export

h = {}
repo.each {|model_klass,instances|
  h[model_klass.name] = instances.map {|instance|
    instance.stratagem.
    :database_attributes => instance.
  }

}

end



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 53

def destroy
  clear
end

#fill_by_automock(model_count = nil) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 125

def fill_by_automock(model_count=nil)
  # load the ids of existing models for each class
  application.models.each do |meta_model|
    next unless meta_model.stratagem?
    load_existing_object_ids(meta_model.klass)
  end

  # mock instances of all models
  application.models.each do |meta_model|
    mock_model(meta_model.klass, model_count) if (meta_model.stratagem?)
  end

  # determine the new ids for each model
  application.models.each do |meta_model|
    next unless meta_model.klass
    next unless meta_model.stratagem?
    
    known_mocked_instances = mocked(meta_model.klass)
    new_ids = load_instance_ids(meta_model) - (pre_existing_object_ids[meta_model.klass] || [])
    
    # limit the number of objects that the system will interact with
    new_ids = new_ids.slice(0,200)
    repo[meta_model.klass.name] = new_ids.map {|id|
      if (id.kind_of?(Fixnum))
        puts "loading instance #{id} of #{meta_model.klass.name}"
        begin
          known_mocked_instances.find {|i| i.id == id } || meta_model.klass.find(id)
        rescue
          puts "FILL ERROR: #{$!.message}"
          nil
        end
      else
        id # id is actually a model instance
      end
    }.compact
    
  end

  print
  self
end

#fill_by_configuration(credentials, model_count = nil) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 99

def fill_by_configuration(credentials, model_count=nil)
  objects_by_class = {}

  log "Loading users for #{credentials.size} sets of credentials"
  credentials.each do |user_credentials|
    log "\t#{user_credentials.authentication_parameters.inspect}"
    user = load_user_from_configuration(user_credentials)
    if (user)
      log "Loaded credentials for user #{user.id}: #{user.stratagem.mock_attributes.inspect}"
      user.stratagem.related_objects.slice(0,5).each do |object|
        (objects_by_class[object.class] ||= []) << object
      end
    else
      Stratagem.logger.fatal "Could not locate user with credentials: #{user_credentials.authentication_parameters.inspect}"
    end
  end
  
  log "Loaded #{objects_by_class.keys.size} object types: #{objects_by_class.keys.inspect}"

  objects_by_class.each do |klass, objects|
    puts "filling aquifer - class #{klass.name} has #{objects.size} instances"
    repo[klass.name] = objects
  end
  self
end

#instances_of(model_klass) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 57

def instances_of(model_klass)
  objects = (repo[model_klass.name] || []).clone
  # puts "found #{objects.size} instances in well"
  objects
end

#load_existing_object_ids(klass) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 74

def load_existing_object_ids(klass)
  # handle polymorphic objects (class may actually be a subclass of the klass parameter)
  klass.existing_instance_ids.each do |existing_id|
    if (existing_id.kind_of?(Fixnum))
      begin
        instance = klass.find(existing_id)
        (pre_existing_object_ids[instance.class] ||= []) << existing_id
      rescue
        puts "ERROR: instance id #{existing_id} of #{klass.name} could not be loaded - #{$!.message}"
      end
    else
      # an instance was loaded because the model has no id field
      (pre_existing_object_ids[instance.class] ||= []) << existing_id
    end
  end
end

#load_instance_ids(meta_model) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 91

def load_instance_ids(meta_model)
  if (meta_model.stratagem?)
    meta_model.klass.existing_instance_ids
  else
    []
  end
end

#mock_model(klass, count = nil) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 178

def mock_model(klass, count=nil)
  count ||= 6
  count.times do |i|
    instance,valid = mock(klass)
  end
end

#pre_existing_object_ids ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 70

def pre_existing_object_ids
  @pre_existing_object_ids ||= {}
end

#print ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 167

def print
  puts "Mocked models:"
  application.models.each do |meta_model|
    puts "#{meta_model.klass.name}"
    (repo[meta_model.klass.name] || []).each do |instance|
      puts "\t#{instance.class} - #{instance.id}"
    end
  end
  puts "end of aquifer"
end

#random_instance(model_klass) ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 63

def random_instance(model_klass)
  objects = repo[model_klass.name]
  # puts "found #{objects.size} instances in well"
  instance = objects[rand objects.size]
  instance
end

#repo ⇒ Object 



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# File 'lib/stratagem/auto_mock/aquifer.rb', line 185

def repo
  mocked
end