Example Files: ExceptionsProject.7z
Employee.h
#ifndef EMPLOYEE_H_
#define EMPLOYEE_H_
#include <iostream>
#include <string>
class Employee
{
private:
int employeeID;
std::string employeeName;
std::string employeeHireDate;
public:
class InvalidEmployeeID
{
private:
int invalidEmployeeID;
public:
InvalidEmployeeID(int invalidEmpID) : invalidEmployeeID(invalidEmpID)
{ }
int getInvalidEmployeeID() const
{ return invalidEmployeeID; }
};
Employee(int, std::string, std::string);
virtual ~Employee()
{ }
// Mutator function
void setEmployee(int, std::string, std::string);
// Accessor function
void invalidIDHandler() const;
// Consider directly employing the overloaded operator and call it from the
// Production worker class
friend std::ostream &operator << (std::ostream &, const Employee &);
virtual void print(std::ostream &) const;
};
#endif
Employee.cpp
#include "Employee.h"
#include <iomanip>
/* **********************************************************
Employee::Employee() : int, string, string
- Constructor
********************************************************** */
Employee::Employee(int empID, std::string empName, std::string empHired) :
employeeID(empID), employeeName(empName), employeeHireDate(empHired)
{
invalidIDHandler();
}
/* **********************************************************
Employee::setEmployee() : int, string, string
Sets the employee data.
********************************************************** */
void Employee::setEmployee(int empID, std::string empName, std::string empHired)
{
employeeID = empID;
employeeName = empName;
employeeHireDate = empHired;
invalidIDHandler();
}
/* **********************************************************
Employee::invalidIDHandler()
Evaluates the employeeID and throws an exception if found
invalid.
********************************************************** */
void Employee::invalidIDHandler() const
{
if (employeeID < 0 || employeeID > 9999)
{
throw InvalidEmployeeID(employeeID);
}
}
/* **********************************************************
Overloaded << function
********************************************************** */
std::ostream &operator << (std::ostream &strm, const Employee &obj)
{
obj.print(strm);
return strm;
}
/* **********************************************************
Employee::print() : ostream &
Outputs the employee data to screen.
********************************************************** */
void Employee::print(std::ostream &strm) const
{
strm << std::left << std::setw(12) << "Employee Name: "
<< std::right << employeeName << std::endl;
strm << std::left << std::setw(15) << "Employee ID: "
<< std::right << employeeID << std::endl;
strm << std::left << std::setw(15) << "Hire Date: "
<< std::right << employeeHireDate << std::endl << std::endl;
}
ProductionWorker.h
#ifndef PRODUCTION_WORKER_H_
#define PRODUCTION_WORKER_H_
#include "Employee.h"
#include <iostream>
#include <string>
class ProductionWorker : public Employee
{
private:
int shiftNumber;
double hourlyPayrate;
public:
class InvalidPayrate
{
private:
double invalidPayrate;
public:
InvalidPayrate(double invalidRate) : invalidPayrate(invalidRate)
{ }
double getInvalidPayrate() const
{ return invalidPayrate; };
};
class InvalidShiftData
{
private:
int invalidShiftID;
public:
InvalidShiftData(int invalidShift) : invalidShiftID(invalidShift)
{ }
int getInvalidShiftID() const
{ return invalidShiftID; }
};
ProductionWorker(int, std::string, std::string, int, double);
void setProductionWorker(int, double);
void invalidShiftHandler() const;
void invalidPayrateHandler() const;
void print(std::ostream &) const override;
};
#endif
ProductionWorker.cpp
#include "ProductionWorker.h"
#include <iomanip>
/* **********************************************************
ProductionWorker::ProductionWorker() : int, string,
string, int, double - Constructor
********************************************************** */
ProductionWorker::ProductionWorker(int empID, std::string empName, std::string empHired,
int shiftID, double payRate) :
shiftNumber(shiftID),hourlyPayrate(payRate),
Employee(empID, empName, empHired)
{
invalidShiftHandler();
invalidPayrateHandler();
}
/* **********************************************************
ProductionWorker::setProductionWorker() int, double
Sets the production worker data.
********************************************************** */
void ProductionWorker::setProductionWorker(int shiftID, double payRate)
{
shiftNumber = shiftID;
hourlyPayrate = payRate;
invalidShiftHandler();
invalidPayrateHandler();
}
/* **********************************************************
ProductionWorker::shiftErrorHandler()
Evaluates the shiftNumber and throws an exception if found
invalid.
********************************************************** */
void ProductionWorker::invalidShiftHandler() const
{
if (shiftNumber < 0 || shiftNumber > 2)
{
throw InvalidShiftData(shiftNumber);
}
}
/* **********************************************************
ProductionWorker::payRateErrorHandler()
Evaluates the hourlyPayRate and throws an exception if
found invalid.
********************************************************** */
void ProductionWorker::invalidPayrateHandler() const
{
if (hourlyPayrate < 0.0)
{
throw InvalidPayrate(hourlyPayrate);
}
}
/* **********************************************************
ProductionWorker::print() : ostream &
Outputs the production worker data to screen.
********************************************************** */
void ProductionWorker::print(std::ostream &strm) const
{
Employee::print(strm);
strm << "Shift #" << shiftNumber << ": ";
shiftNumber == 1 ?
strm << std::setw(16) << std::right << "Day-Shift" << std::endl :
strm << std::setw(16) << std::right << "Night-Shift" << std::endl;
strm << std::fixed << std::setprecision(2) << std::fixed;
strm << std::left << std::setw(14) << "Pay Rate: "
<< std::right << "$ " << hourlyPayrate << std::endl;
}
ExceptionProject.cpp
#include "ProductionWorker.h"
#include <iostream>
void badValueCheck(int, std::string, std::string, int, double);
int main()
{
std::cout << "TAKEUCHI MANUFACTURING CO. - EMPLOYEE DATA VALIDATION\n\n";
std::cout << "The following tests will now be carried out:\n\n";
std::cout << "Test 1: Employee Number\n";
badValueCheck(99921, "Flanders Moll", "17/04/2013", 2, 86.80);
std::cout << std::endl;
std::cout << "Test 2: Shift ID\n";
badValueCheck(1241, " Kakuta", "12/03/2015", -7, 85.99);
std::cout << std::endl;
std::cout << "Test 3: Hourly Payrate\n";
badValueCheck(9411, "Vishneva Diana", "12/03/2015", 1, -190.55);
std::cout << std::endl;
std::cout << "Test 4: Correct Data\n";
badValueCheck(4350, "Hiroshi Sato", "15/05/2005", 2, 99.75);
std::cout << std::endl;
std::cout << "You are now leaving the Database System ...\n\n";
std::cout << "TAKEUCHI MANUFACTURING CO.\n"
<< "Unrivaled quality, products with a difference,\n"
<< "and fast development responding to the users' needs.";
std::cin.get();
return 0;
}
/* **********************************************************
badValueCheck() : int, string, string, int, double
This function tests various data items for validity. If an
item is invalid, it is caught, and an error message is
output. Otherwise the production worker data is output.
********************************************************** */
void badValueCheck(int empID, std::string empName, std::string empHired,
int shiftID, double payRate)
{
try
{
ProductionWorker temp(empID, empName, empHired, shiftID, payRate);
std::cout << temp;
}
catch (ProductionWorker::InvalidEmployeeID badEmployeeID)
{
std::cout << "Error! Invalid Employee ID: "
<< badEmployeeID.getInvalidEmployeeID() << std::endl;
}
catch (ProductionWorker::InvalidShiftData badShiftID)
{
std::cout << "Error! Invalid Shift ID: "
<< badShiftID.getInvalidShiftID() << std::endl;
}
catch (ProductionWorker::InvalidPayrate badPayrate)
{
std::cout << "Error! Invalid Hourly Payrate: $ "
<< badPayrate.getInvalidPayrate() << std::endl;
}
}
Example Output:
