weather

package

v2.0.0+incompatible Latest Latest Go to latest Published: Feb 25, 2018 License: MIT Imports: 5 Imported by: 0

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Repository

github.com/lnsp/go-demos

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Documentation ¶

Overview ¶

Package weather provides a collection of weather service implementations.

Index ¶

Variables
type InMemoryService
- func NewInMemoryService() *InMemoryService
type Report
type Service
type Unit

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	// ErrInvalidTemperature is thrown when the converted temperature exceeds the allowed value range.
	ErrInvalidTemperature = errors.New("given combination of value and unit of temperature invalid")
	// ErrNotFound is thrown when a city does not exist in the database.
	ErrNotFound = errors.New("given city could not be found")
)

Functions ¶

This section is empty.

Types ¶

type InMemoryService ¶

type InMemoryService struct {
	// contains filtered or unexported fields
}

InMemoryService is a in-memory implementation of a weather data service.

func NewInMemoryService ¶

func NewInMemoryService() *InMemoryService

NewInMemoryService creates a new InMemoryService.

func (*InMemoryService) Cities ¶

func (service *InMemoryService) Cities() []string

Cities returns a list of all stored cities.

func (*InMemoryService) Report ¶

func (service *InMemoryService) Report(city string, temperature float64, unit Unit) (int64, error)

Report stores the current temperature report in the memory.

func (*InMemoryService) TemperatureIn ¶

func (service *InMemoryService) TemperatureIn(city string, unit Unit) (Report, error)

TemperatureIn retrieves the current temperature in the city.

type Report ¶

type Report struct {
	Timestamp   int64
	Temperature float64
}

Report stores weather information at a specific point in time.

type Service ¶

type Service interface {
	Report(city string, temperature float64, unit Unit) (int64, error)
	TemperatureIn(city string, unit Unit) (Report, error)
	Cities() []string
}

Service stores and retrieves local weather information.

type Unit ¶

type Unit int

Unit is a kind of temperature measurement unit

const (
	Kelvin Unit = iota
	Celsius
	Fahrenheit
)

Units of measurement for temperature ranges.

Source Files ¶

View all Source files

weather.go

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