Exercise 1
This commit is contained in:
cdricms
190
ex1/parsing/parsing.go
Normal file
190
ex1/parsing/parsing.go
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@@ -0,0 +1,190 @@
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package parsing
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import (
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"encoding/csv"
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"errors"
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"reflect"
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"strconv"
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"git.cems.dev/cdricms/bdooc/proto"
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)
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func UnmarshalEmployees(reader *csv.Reader) ([]Employee, error) {
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reader.Comma = ','
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headers, err := reader.Read()
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if err != nil {
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return nil, errors.New("Couldn't read the headers.")
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}
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e := Employee{}
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refet := reflect.TypeOf(e)
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tagMap := make(map[string]int)
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headersLength := len(headers)
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numFields := refet.NumField()
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for i := 0; i < numFields && i < headersLength; i++ {
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field := refet.Field(i)
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if field.Tag.Get("csv") == headers[i] {
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tagMap[field.Name] = i
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}
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}
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var employees []Employee
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for {
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record, err := reader.Read()
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if err != nil {
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break
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}
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employee := Employee{}
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reflectionValue := reflect.ValueOf(&employee).Elem()
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for fieldName, index := range tagMap {
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field := reflectionValue.FieldByName(fieldName)
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if field.IsValid() {
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switch field.Type().Name() {
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case "string":
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field.SetString(record[index])
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case "uint8":
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if intValue, err := strconv.ParseUint(record[index], 10, 8); err == nil {
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field.SetUint(intValue)
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}
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case "uint16":
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if intValue, err := strconv.ParseUint(record[index], 10, 16); err == nil {
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field.SetUint(intValue)
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}
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case "uint32":
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if intValue, err := strconv.ParseUint(record[index], 10, 32); err == nil {
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field.SetUint(intValue)
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}
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case "float32":
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if floatValue, err := strconv.ParseFloat(record[index], 32); err == nil {
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field.SetFloat(floatValue)
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}
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case "Gender":
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field.Set(reflect.ValueOf(Gender(rune(record[index][0]))))
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case "Quarter":
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field.Set(reflect.ValueOf(Quarter(string(record[index]))))
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case "Half":
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field.Set(reflect.ValueOf(Half(string(record[index]))))
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case "Month":
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field.Set(reflect.ValueOf(Month(string(record[index]))))
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case "MonthShort":
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field.Set(reflect.ValueOf(MonthShort(string(record[index]))))
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case "WeekDay":
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field.Set(reflect.ValueOf(WeekDay(string(record[index]))))
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case "WeekDayShort":
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field.Set(reflect.ValueOf(WeekDayShort(string(record[index]))))
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}
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}
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}
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employees = append(employees, employee)
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}
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return employees, nil
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}
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func (e Employee) MapToProto() *proto.Employee {
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employee := &proto.Employee{}
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employee.EmpId = e.EmpID
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employee.NamePrefix = e.NamePrefix
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employee.FirstName = e.FirstName
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employee.MiddleInitial = e.MiddleInitial
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employee.LastName = e.LastName
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employee.Gender = proto.Gender(e.Gender)
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employee.Email = e.Email
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employee.FathersName = e.FathersName
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employee.MothersName = e.MothersName
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employee.MothersMaidenName = e.MothersMaidenName
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employee.Birthdate = e.Birthdate
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employee.BirthTime = e.BirthTime
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employee.WeightKg = uint32(e.WeightKg)
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employee.JoiningDate = e.JoiningDate
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employee.JoiningQuarter = proto.Quarter(e.JoiningQuarter.Uint8())
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employee.JoiningHalf = proto.Half(e.JoiningHalf.Uint8())
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employee.JoiningYear = uint32(e.JoiningYear)
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employee.JoiningMonth = uint32(e.JoiningMonth)
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employee.JoiningMonthName = proto.Month(e.JoiningMonthName.Uint8())
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employee.JoiningMonthNameShort = proto.MonthShort(e.JoiningMonthNameShort.Uint8())
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employee.JoiningMonthDay = uint32(e.JoiningMonthDay)
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employee.JoiningWeekDay = proto.WeekDay(e.JoiningWeekDay.Uint8())
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employee.JoiningWeekDayShort = proto.WeekDayShort(e.JoiningWeekDayShort.Uint8())
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employee.YearsOfService = float32(e.YearsOfService)
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employee.Salary = uint32(e.Salary)
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employee.LatestHikePercentage = e.LatestHikePercentage
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employee.Ssn = e.SSN
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employee.PhoneNumber = e.PhoneNumber
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employee.PlaceName = e.PlaceName
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employee.County = e.County
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employee.City = e.City
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employee.State = e.State
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employee.Zip = uint32(e.Zip)
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employee.Region = e.Region
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employee.Username = e.Username
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employee.Password = e.Password
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return employee
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}
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func MapToProto(es []Employee) *proto.EmployeeList {
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employeeList := &proto.EmployeeList{}
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for _, employee := range es {
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employeeList.Employees = append(employeeList.Employees, employee.MapToProto())
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}
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return employeeList
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}
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func MapFromProto(e *proto.Employee) Employee {
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employee := Employee{}
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employee.EmpID = e.EmpId
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employee.NamePrefix = e.NamePrefix
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employee.FirstName = e.FirstName
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employee.MiddleInitial = e.MiddleInitial
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employee.LastName = e.LastName
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employee.Gender = Gender(e.Gender)
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employee.Email = e.Email
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employee.FathersName = e.FathersName
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employee.MothersName = e.MothersName
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employee.MothersMaidenName = e.MothersMaidenName
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employee.Birthdate = e.Birthdate
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employee.BirthTime = e.BirthTime
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employee.WeightKg = uint16(e.WeightKg)
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employee.JoiningDate = e.JoiningDate
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employee.JoiningQuarter = Quarter(e.JoiningQuarter.String())
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employee.JoiningHalf = Half(e.JoiningHalf.String())
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employee.JoiningYear = uint16(e.JoiningYear)
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employee.JoiningMonth = uint8(e.JoiningMonth)
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employee.JoiningMonthName = Month(e.JoiningMonthName.String())
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employee.JoiningMonthNameShort = MonthShort(e.JoiningMonthNameShort.String())
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employee.JoiningMonthDay = uint8(e.JoiningMonthDay)
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employee.JoiningWeekDay = WeekDay(e.JoiningWeekDay.String())
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employee.JoiningWeekDayShort = WeekDayShort(e.JoiningWeekDayShort.String())
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employee.YearsOfService = float32(e.YearsOfService)
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employee.Salary = uint32(e.Salary)
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employee.LatestHikePercentage = e.LatestHikePercentage
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employee.SSN = e.Ssn
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employee.PhoneNumber = e.PhoneNumber
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employee.PlaceName = e.PlaceName
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employee.County = e.County
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employee.City = e.City
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employee.State = e.State
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employee.Zip = uint32(e.Zip)
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employee.Region = e.Region
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employee.Username = e.Username
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employee.Password = e.Password
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return employee
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}
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func MapFromProtoList(el *proto.EmployeeList) []Employee {
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employees := []Employee{}
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for _, pemployee := range el.GetEmployees() {
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employees = append(employees, MapFromProto(pemployee))
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}
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return employees
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}
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250
ex1/parsing/types.go
Normal file
250
ex1/parsing/types.go
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@@ -0,0 +1,250 @@
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package parsing
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type Gender rune
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const (
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Male Gender = 'M'
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Female Gender = 'F'
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)
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type Quarter string
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const (
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QuarterOne Quarter = "Q1"
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QuarterTwo Quarter = "Q2"
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QuarterThree Quarter = "Q3"
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QuarterFour Quarter = "Q4"
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)
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func (x Quarter) Uint8() uint8 {
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switch x {
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case QuarterOne:
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return 1
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case QuarterTwo:
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return 2
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case QuarterThree:
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return 3
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case QuarterFour:
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return 4
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}
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return 0
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}
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type Half string
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const (
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HalfOne Half = "H1"
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HalfTwo Half = "H2"
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)
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func (x Half) Uint8() uint8 {
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switch x {
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case HalfOne:
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return 1
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case HalfTwo:
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return 2
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}
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return 0
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}
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type Month string
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const (
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January Month = "January"
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February Month = "February"
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March Month = "March"
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April Month = "April"
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May Month = "May"
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June Month = "June"
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July Month = "July"
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August Month = "August"
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September Month = "September"
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October Month = "October"
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November Month = "November"
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December Month = "December"
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)
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func (x Month) Uint8() uint8 {
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switch x {
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case January:
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return 1
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case February:
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return 2
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case March:
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return 3
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case April:
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return 4
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case May:
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return 5
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case June:
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return 6
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case July:
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return 7
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case August:
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return 8
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case September:
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return 9
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case October:
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return 10
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case November:
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return 11
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case December:
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return 12
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default:
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return 0
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}
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}
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type MonthShort string
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const (
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Jan MonthShort = "Jan"
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Feb MonthShort = "Feb"
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Mar MonthShort = "Mar"
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Apr MonthShort = "Apr"
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MayShort MonthShort = "May"
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Jun MonthShort = "Jun"
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Jul MonthShort = "Jul"
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Aug MonthShort = "Aug"
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Sep MonthShort = "Sep"
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Oct MonthShort = "Oct"
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Nov MonthShort = "Nov"
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Dec MonthShort = "Dec"
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)
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func (x MonthShort) Uint8() uint8 {
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switch x {
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case Jan:
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return 1
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case Feb:
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return 2
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case Mar:
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return 3
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case Apr:
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return 4
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case MayShort:
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return 5
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case Jun:
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return 6
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case Jul:
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return 7
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case Aug:
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return 8
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case Sep:
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return 9
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case Oct:
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return 10
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case Nov:
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return 11
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case Dec:
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return 12
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}
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return 0
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}
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type WeekDay string
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const (
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Monday WeekDay = "Monday"
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Tuesday WeekDay = "Tuesday"
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Wednesday WeekDay = "Wednesday"
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Thursday WeekDay = "Thursday"
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Friday WeekDay = "Friday"
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Saturday WeekDay = "Saturday"
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Sunday WeekDay = "Sunday"
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)
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func (x WeekDay) Uint8() uint8 {
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switch x {
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case Monday:
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return 1
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case Tuesday:
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return 2
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case Wednesday:
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return 3
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case Thursday:
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return 4
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case Friday:
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return 5
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case Saturday:
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return 6
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case Sunday:
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return 7
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}
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return 0
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}
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type WeekDayShort string
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const (
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Mon WeekDayShort = "Mon"
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Tue WeekDayShort = "Tue"
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Wed WeekDayShort = "Wed"
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Thu WeekDayShort = "Thu"
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Fri WeekDayShort = "Fri"
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Sat WeekDayShort = "Sat"
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Sun WeekDayShort = "Sun"
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)
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func (x WeekDayShort) Uint8() uint8 {
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switch x {
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case Mon:
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return 1
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case Tue:
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return 2
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case Wed:
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return 3
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case Thu:
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return 4
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case Fri:
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return 5
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case Sat:
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return 6
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case Sun:
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return 7
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}
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return 0
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}
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type Employee struct {
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EmpID uint32 `csv:"Emp ID"`
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NamePrefix string `csv:"Name Prefix"`
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FirstName string `csv:"First Name"`
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MiddleInitial string `csv:"Middle Initial"`
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LastName string `csv:"Last Name"`
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Gender Gender `csv:"Gender"`
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Email string `csv:"E Mail"`
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FathersName string `csv:"Father's Name"`
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MothersName string `csv:"Mothers's Name"`
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MothersMaidenName string `csv:"Mother's Maiden Name"`
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Birthdate string `csv:"Date of Birth"`
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BirthTime string `csv:"Time of Birth"`
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WeightKg uint16 `csv:"Weight in Kgs."`
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JoiningDate string `csv:"Date of Joining"`
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JoiningQuarter Quarter `csv:"Quarter of Joining"`
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JoiningHalf Half `csv:"Half of Joining"`
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JoiningYear uint16 `csv:"Year of Joining"`
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JoiningMonth uint8 `csv:"Month of Joining"`
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JoiningMonthName Month `csv:"Month Name of Joining"`
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JoiningMonthNameShort MonthShort `csv:"Short Month"`
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JoiningMonthDay uint8 `csv:"Day of Joining"`
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JoiningWeekDay WeekDay `csv:"DOW of Joining"`
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JoiningWeekDayShort WeekDayShort `csv:"Short DOW"`
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YearsOfService float32 `csv:"Age in Company (Years)"`
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Salary uint32 `csv:"Salary"`
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LatestHikePercentage string `csv:"Last % Hike"`
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SSN string `csv:"SSN"`
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PhoneNumber string `csv:"Phone No."`
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PlaceName string `csv:"Place Name"`
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County string `csv:"County"`
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City string `csv:"City"`
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State string `csv:"State"`
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Zip uint32 `csv:"Zip"`
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Region string `csv:"Region"`
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Username string `csv:"User Name"`
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Password string `csv:"Password"`
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// Empty slot
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// Empty slot
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// Empty slot
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}
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Reference in New Issue
Block a user