Apply factory pattern. #1

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JoyBiao wants to merge 3 commits intomasterfrom

factory_creational_pattern

Commits on Aug 16, 2021

Apply factory pattern. Create a new factory class ModelFactory under app/services/location directory. Change code in jhu.py and nyt.py to use ModelFactory's create_factory() method
JoyBiao
committed
apply bridge pattern under app/services/location directory. class csbs.py, jhu.py, nyt.py implements the interface DataSourcesInterface in sourcelocations.py. Add BasicLocationService class to impl…
JoyBiao
committed
Apply factory pattern. Create a new factory class ModelFactory under app/services/location directory. Change code in jhu.py and nyt.py to use ModelFactory's create_factory() method
JoyBiao
committed