public Person(Guid personId, string name, Email email, Category category)
{
PersonId = personId;
Name = name;
Email = email;
Category = category;
ValidSpecification = new PersonValidSpecification <object>();
}
static void Main(string[] args)
{
// Person list
var people = new List <Person> {
new Person(Guid.NewGuid(), "Douglas 1", new Email("*****@*****.**"), new Category(2, "Partner")),
new Person(Guid.NewGuid(), "Douglas 2", new Email("*****@*****.**"), new Category(1, "Customer")),
new Person(Guid.NewGuid(), "Douglas 3", new Email("*****@*****.**"), new Category(2, "Partner")),
new Person(Guid.NewGuid(), "Douglas 4", new Email("douglas4_gmail.com"), new Category(1, "Customer")),
new Person(Guid.NewGuid(), "Douglas 5", new Email("*****@*****.**"), new Category(1, "Customer")),
new Person(Guid.NewGuid(), "Douglas 6", new Email("*****@*****.**"), new Category(1, "Customer")),
new Person(Guid.NewGuid(), "Douglas 7", new Email("*****@*****.**"), null)
};
Console.WriteLine(":: ALL PEOPLE ::");
foreach (var item in people)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item?.Email?.Address + " | " + item.Category?.Description);
}
// Specifications usages
Console.WriteLine("");
Console.WriteLine(":: CUSTOMER ::");
ISpecification <Person> personCustomersSpecification = new PersonCustomerSpecification <Person>();
var customer = people.FindAll(x => personCustomersSpecification.IsSatisfiedBy(x));
foreach (var item in customer)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.WriteLine("");
Console.WriteLine(":: PARTNER ::");
ISpecification <Person> partnerSpecification = new ExpressionSpecification <Person>(x => x.Category?.CategoryId == 2);
var partners = people.FindAll(x => partnerSpecification.IsSatisfiedBy(x));
foreach (var item in partners)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.WriteLine("");
Console.WriteLine(":: WITHOUT CATEGORY ::");
ISpecification <Person> nullSpecification = new ExpressionSpecification <Person>(x => x.Category == null);
var nullCategory = people.FindAll(x => nullSpecification.IsSatisfiedBy(x));
foreach (var item in nullCategory)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.WriteLine("");
Console.WriteLine(":: WITH AND WITHOUT CATEGORY ::");
ISpecification <Person> customersSpecification = new ExpressionSpecification <Person>(x => x.Category?.CategoryId == 1);
var allWithCategorySpecification = customersSpecification.Or(partnerSpecification);
var includeNull = allWithCategorySpecification.Or(nullSpecification);
var allAndNullCategory = people.FindAll(x => includeNull.IsSatisfiedBy(x));
foreach (var item in allAndNullCategory)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("");
Console.WriteLine(":: ALL VALID ::");
ISpecification <Person> validSpecification = new PersonValidSpecification <Person>();
var validPeople = people.Where(x => validSpecification.IsSatisfiedBy(x));
foreach (var item in validPeople)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.ForegroundColor = ConsoleColor.Magenta;
Console.WriteLine("");
Console.WriteLine(":: VALID CUSTOMERS ::");
var validCustomers = people.Where(x => validSpecification.IsSatisfiedBy(x) && customersSpecification.IsSatisfiedBy(x));
foreach (var item in validCustomers)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("");
Console.WriteLine(":: VALID PARTNERS ::");
var validPartners = people.Where(x => validSpecification.IsSatisfiedBy(x) && partnerSpecification.IsSatisfiedBy(x));
foreach (var item in validPartners)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("");
Console.WriteLine(":: INVALID ::");
var invalidPeople = people.Where(x => !validSpecification.IsSatisfiedBy(x));
foreach (var item in invalidPeople)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine("");
Console.WriteLine(":: ISVALID ::");
var isvalidPeople = people.Where(x => x.IsValid());
foreach (var item in isvalidPeople)
{
Console.WriteLine(item.PersonId + " | " + item.Name + " | " + item.Email.Address + " | " + item.Category?.Description);
}
Console.ReadKey();
}
