/// <summary>
/// Builds a person based on user input
/// </summary>
static Person PromptForAddress(TextReader input, TextWriter output)
{
Person.Builder person = Person.CreateBuilder();
output.Write("Enter person ID: ");
person.Id = int.Parse(input.ReadLine());
output.Write("Enter name: ");
person.Name = input.ReadLine();
output.Write("Enter email address (blank for none): ");
string email = input.ReadLine();
if (email.Length > 0)
{
person.Email = email;
}
while (true)
{
output.Write("Enter a phone number (or leave blank to finish): ");
string number = input.ReadLine();
if (number.Length == 0)
{
break;
}
Person.Types.PhoneNumber.Builder phoneNumber =
Person.Types.PhoneNumber.CreateBuilder().SetNumber(number);
output.Write("Is this a mobile, home, or work phone? ");
String type = input.ReadLine();
switch (type)
{
case "mobile":
phoneNumber.Type = Person.Types.PhoneType.MOBILE;
break;
case "home":
phoneNumber.Type = Person.Types.PhoneType.HOME;
break;
case "work":
phoneNumber.Type = Person.Types.PhoneType.WORK;
break;
default:
output.Write("Unknown phone type. Using default.");
break;
}
person.AddPhone(phoneNumber);
}
return(person.Build());
}
private static void Main()
{
byte[] bytes;
//Create a builder to start building a message
Person.Builder newContact = Person.CreateBuilder();
//Set the primitive properties
newContact.SetId(1)
.SetName("Foo")
.SetEmail("foo@bar");
//Now add an item to a list (repeating) field
newContact.AddPhone(
//Create the child message inline
Person.Types.PhoneNumber.CreateBuilder().SetNumber("555-1212").Build()
);
//Now build the final message:
Person person = newContact.Build();
//The builder is no longer valid (at least not now, scheduled for 2.4):
newContact = null;
using (MemoryStream stream = new MemoryStream())
{
//Save the person to a stream
person.WriteTo(stream);
bytes = stream.ToArray();
}
//Create another builder, merge the byte[], and build the message:
Person copy = Person.CreateBuilder().MergeFrom(bytes).Build();
//A more streamlined approach might look like this:
bytes = AddressBook.CreateBuilder().AddPerson(copy).Build().ToByteArray();
//And read the address book back again
AddressBook restored = AddressBook.CreateBuilder().MergeFrom(bytes).Build();
//The message performs a deep-comparison on equality:
if (restored.PersonCount != 1 || !person.Equals(restored.PersonList[0]))
{
throw new ApplicationException("There is a bad person in here!");
}
}