Swift easy manufacturing facility design sample

Easy manufacturing facility implementation utilizing switch-case

The objective of this sample is to encapsulate one thing that may typically fluctuate. Think about a shade palette for an utility. You may need to vary the colours in keeping with the newest behavior of the designer each day. I’d be actually inconvenient in the event you needed to search & change each single occasion of the colour code by hand. So let’s make a easy manufacturing facility in Swift that may return colours primarily based on a given model. 🎩

class ColorFactory {

    enum Model {
        case textual content
        case background
    }

    func create(_ model: Model) -> UIColor {
        swap model {
        case .textual content:
            return .black
        case .background:
            return .white
        }
    }
}


let manufacturing facility = ColorFactory()
let textColor = manufacturing facility.create(.textual content)
let backgroundColor = manufacturing facility.create(.background)

This may be actually helpful, particularly if it involves an advanced object initialization course of. It’s also possible to outline a protocol and return numerous occasion sorts that implement the required interface utilizing a swap case block. 🚦

protocol Setting {
    var identifier: String { get }
}

class DevEnvironment: Setting {
    var identifier: String { return "dev" }
}

class LiveEnvironment: Setting {
    var identifier: String { return "stay" }
}

class EnvironmentFactory {

    enum EnvType {
        case dev
        case stay
    }

    func create(_ sort: EnvType) -> Setting {
        swap sort {
        case .dev:
            return DevEnvironment()
        case .stay:
            return LiveEnvironment()
        }
    }
}

let manufacturing facility = EnvironmentFactory()
let dev = manufacturing facility.create(.dev)
print(dev.identifier)

So, a number of issues to recollect concerning the easy manufacturing facility design sample:

+ it helps unfastened coupling by separating init & utilization logic 🤔
+ it is only a wrapper to encapsulate issues that may change typically 🤷‍♂️
+ easy manufacturing facility will be applied in Swift utilizing an enum and a switch-case
+ use a protocol in case you are planning to return totally different objects (POP 🎉)
+ hold it easy 🏭

This sample separates the creation from the precise utilization and strikes the duty to a particular function, so if one thing modifications you solely have to switch the manufacturing facility. You’ll be able to go away all of your assessments and every part else utterly untouched. Highly effective and easy! 💪