1#region Copyright notice and license
2// Protocol Buffers - Google's data interchange format
3// Copyright 2008 Google Inc.  All rights reserved.
4// https://developers.google.com/protocol-buffers/
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met:
9//
10//     * Redistributions of source code must retain the above copyright
11// notice, this list of conditions and the following disclaimer.
12//     * Redistributions in binary form must reproduce the above
13// copyright notice, this list of conditions and the following disclaimer
14// in the documentation and/or other materials provided with the
15// distribution.
16//     * Neither the name of Google Inc. nor the names of its
17// contributors may be used to endorse or promote products derived from
18// this software without specific prior written permission.
19//
20// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31#endregion
32
33using System;
34
35namespace Google.Protobuf.Examples.AddressBook
36{
37    /// <summary>
38    /// Entry point. Repeatedly prompts user for an action to take, delegating actual behaviour
39    /// to individual actions. Each action has its own Main method, so that it can be used as an
40    /// invidual complete program.
41    /// </summary>
42    internal class Program
43    {
44        private static int Main(string[] args)
45        {
46            if (args.Length > 1)
47            {
48                Console.Error.WriteLine("Usage: AddressBook [file]");
49                Console.Error.WriteLine("If the filename isn't specified, \"addressbook.data\" is used instead.");
50                return 1;
51            }
52            string addressBookFile = args.Length > 0 ? args[0] : "addressbook.data";
53
54            bool stopping = false;
55            while (!stopping)
56            {
57                Console.WriteLine("Options:");
58                Console.WriteLine("  L: List contents");
59                Console.WriteLine("  A: Add new person");
60                Console.WriteLine("  Q: Quit");
61                Console.Write("Action? ");
62                Console.Out.Flush();
63                char choice = Console.ReadKey().KeyChar;
64                Console.WriteLine();
65                try
66                {
67                    switch (choice)
68                    {
69                        case 'A':
70                        case 'a':
71                            AddPerson.Main(new string[] {addressBookFile});
72                            break;
73                        case 'L':
74                        case 'l':
75                            ListPeople.Main(new string[] {addressBookFile});
76                            break;
77                        case 'Q':
78                        case 'q':
79                            stopping = true;
80                            break;
81                        default:
82                            Console.WriteLine("Unknown option: {0}", choice);
83                            break;
84                    }
85                }
86                catch (Exception e)
87                {
88                    Console.WriteLine("Exception executing action: {0}", e);
89                }
90                Console.WriteLine();
91            }
92            return 0;
93        }
94    }
95}