Added address book example

1 files changed, 57 insertions, 0 deletions

diff --git a/src/AddressBook/ListPeople.cs b/src/AddressBook/ListPeople.cs
new file mode 100644
index 00000000..b2a9a964
--- /dev/null
+++ b/src/AddressBook/ListPeople.cs
@@ -0,0 +1,57 @@
+
+using System;
+using System.IO;
+
+namespace Google.ProtocolBuffers.Examples.AddressBook {
+  class ListPeople {
+    /// <summary>
+    /// Iterates though all people in the AddressBook and prints info about them.
+    /// </summary>
+    static void Print(AddressBook addressBook) {
+      foreach (Person person in addressBook.PersonList) {
+        Console.WriteLine("Person ID: {0}", person.Id);
+        Console.WriteLine("  Name: {0}", person.Name);
+        if (person.HasEmail) {
+          Console.WriteLine("  E-mail address: {0}", person.Email);
+        }
+
+        foreach (Person.Types.PhoneNumber phoneNumber in person.PhoneList) {
+          switch (phoneNumber.Type) {
+            case Person.Types.PhoneType.MOBILE:
+              Console.Write("  Mobile phone #: ");
+              break;
+            case Person.Types.PhoneType.HOME:
+              Console.Write("  Home phone #: ");
+              break;
+            case Person.Types.PhoneType.WORK:
+              Console.Write("  Work phone #: ");
+              break;
+          }
+          Console.WriteLine(phoneNumber.Number);
+        }
+      }
+    }
+
+    /// <summary>
+    /// Entry point - loads the addressbook and then displays it.
+    /// </summary>
+    public static int Main(string[] args) {
+      if (args.Length != 1) {
+        Console.Error.WriteLine("Usage:  ListPeople ADDRESS_BOOK_FILE");
+        return 1;
+      }
+
+      if (!File.Exists(args[0])) {
+        Console.WriteLine("{0} doesn't exist. Add a person to create the file first.", args[0]);
+        return 0;
+      }
+
+      // Read the existing address book.
+      using (Stream stream = File.OpenRead(args[0])) {
+        AddressBook addressBook = AddressBook.ParseFrom(stream);
+        Print(addressBook);
+      }
+      return 0;
+    }
+  }
+}