Arie Bregman
27a21105ff
* E305 expected 2 blank lines after class or function definition * E501 line too long (87 > 79 characters) * W391 blank line at end of file
80 lines
1.9 KiB
Python
80 lines
1.9 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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@author: Gordeev Andrey <gordeev.and.and@gmail.com>
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The controller provides a centralized entry point that controls and manages
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request handling.
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"""
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class MobileView(object):
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def show_index_page(self):
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print('Displaying mobile index page')
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class TabletView(object):
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def show_index_page(self):
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print('Displaying tablet index page')
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class Dispatcher(object):
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def __init__(self):
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self.mobile_view = MobileView()
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self.tablet_view = TabletView()
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def dispatch(self, request):
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if request.type == Request.mobile_type:
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self.mobile_view.show_index_page()
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elif request.type == Request.tablet_type:
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self.tablet_view.show_index_page()
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else:
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print('cant dispatch the request')
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class RequestController(object):
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""" front controller """
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def __init__(self):
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self.dispatcher = Dispatcher()
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def dispatch_request(self, request):
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if isinstance(request, Request):
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self.dispatcher.dispatch(request)
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else:
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print('request must be a Request object')
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class Request(object):
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""" request """
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mobile_type = 'mobile'
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tablet_type = 'tablet'
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def __init__(self, request):
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self.type = None
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request = request.lower()
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if request == self.mobile_type:
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self.type = self.mobile_type
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elif request == self.tablet_type:
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self.type = self.tablet_type
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if __name__ == '__main__':
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front_controller = RequestController()
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front_controller.dispatch_request(Request('mobile'))
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front_controller.dispatch_request(Request('tablet'))
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front_controller.dispatch_request(Request('desktop'))
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front_controller.dispatch_request('mobile')
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### OUTPUT ###
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# Displaying mobile index page
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# Displaying tablet index page
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# cant dispatch the request
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# request must be a Request object
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