Introduce the Factory pattern via LocationServiceFactory as a way to … #465
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…create new LocationServices in an extensible way.
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I am introducing a LocationServiceFactory to abstract the creation of different LocationServices. Each location has a name associated, and we use this as the key for each instance.
Data sources can come and go (or existing ones can change). This makes the LocationService a part of the code that is subject to change. By abstracting the creation of these services, we enable the addition and changing of the list of data sources