Mercurial > servermonitor
annotate ServerMonitor/Helpers.cs @ 33:69e8ecdbbdd3
Fix schedule time not being saved on daily schedules.
| author | Brad Greco <brad@bgreco.net> |
|---|---|
| date | Sun, 16 Jun 2019 16:55:37 -0400 |
| parents | 68d7834dc28e |
| children | 7645122aa7a9 |
| rev | line source |
|---|---|
| 17 | 1 using ServerMonitorApp.Properties; |
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2 using System; |
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3 using System.ComponentModel; |
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4 using System.Drawing; |
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5 using System.Linq; |
| 4 | 6 using System.Net.NetworkInformation; |
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7 using System.Windows.Forms; |
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8 |
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9 namespace ServerMonitorApp |
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10 { |
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11 static class Helpers |
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12 { |
| 17 | 13 /// <summary>Resizes the image on a button to fit inside the button's dimensions.</summary> |
| 14 /// <param name="button">A button containing an image.</param> | |
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15 public static void FormatImageButton(Button button) |
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16 { |
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17 button.Image = new Bitmap(button.Image, button.Height - 8, button.Height - 8); |
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18 } |
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19 |
| 17 | 20 /// <summary>Recursively collects the messages for an exception and its inner exceptions.</summary> |
| 21 /// <param name="ex">The parent exception.</param> | |
| 22 /// <returns>A string containing the messages for the exception and its inner exceptions.</returns> | |
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23 public static string GetAllMessages(this Exception ex) |
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24 { |
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25 return "\t" + (ex.InnerException == null ? ex.Message : ex.Message + Environment.NewLine + ex.InnerException.GetAllMessages()); |
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26 } |
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27 |
| 17 | 28 /// <summary>Gets the value of the DisplayNameAttribute for a type.</summary> |
| 29 /// <param name="type">The type to get the display name of.</param> | |
| 30 /// <returns>The type's display name, or the type name if no display name is defined.</returns> | |
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31 public static string GetDisplayName(Type type) |
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32 { |
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33 return type?.GetAttribute<DisplayNameAttribute>()?.DisplayName ?? type?.Name ?? "null"; |
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34 } |
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35 |
| 17 | 36 /// <summary>Checks whether a string is null, an empty string, or only contains white space.</summary> |
| 37 /// <param name="aString">The string to test.</param> | |
| 38 /// <returns>True if the string is null, an empty string, or only contains white space. False otherwise.</returns> | |
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39 public static bool IsNullOrEmpty(this string aString) |
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40 { |
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41 return aString == null || aString.Trim() == string.Empty; |
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42 } |
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43 |
| 17 | 44 /// <summary>Converts all newlines in a string to unix format.</summary> |
| 45 /// <param name="aString">The string to convert.</param> | |
| 46 /// <returns>The string with all newlines converted to unix format.</returns> | |
| 2 | 47 public static string ConvertNewlines(this string aString) |
| 48 { | |
| 49 return aString.Replace("\r\n", "\n").Replace('\r', '\n'); | |
| 50 } | |
| 51 | |
| 17 | 52 /// <summary>Gets an attribute on a class.</summary> |
| 53 /// <typeparam name="T">The type of the attribute to return.</typeparam> | |
| 54 /// <param name="type">The type of the class the attribute is on.</param> | |
| 55 /// <returns>The attribute, or null if the attribute does not exist on the class.</returns> | |
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56 public static T GetAttribute<T>(this Type type) where T : Attribute |
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57 { |
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58 return type.GetCustomAttributes(typeof(T), false).SingleOrDefault() as T; |
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59 } |
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60 |
| 17 | 61 /// <summary>Gets an image associated with a check status for use in the UI.</summary> |
| 62 /// <param name="checkStatus">The check status.</param> | |
| 63 /// <returns>The image associated with the check status.</returns> | |
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64 public static Image GetImage(this CheckStatus checkStatus) |
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65 { |
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66 switch (checkStatus) |
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67 { |
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68 case CheckStatus.Error: return Resources.error; |
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69 case CheckStatus.Warning: return Resources.warning; |
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70 case CheckStatus.Information: return Resources.info; |
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71 case CheckStatus.Success: return Resources.pass; |
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72 case CheckStatus.Running: return Resources.run; |
| 4 | 73 case CheckStatus.Disabled: return Resources.disable; |
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74 default: return null; |
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75 } |
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76 } |
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77 |
| 17 | 78 /// <summary>Gets a program icon associated with a check status.</summary> |
| 79 /// <param name="checkStatus">The check status.</param> | |
| 80 /// <returns>The program icon associated with the check status.</returns> | |
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81 public static Icon GetIcon(this CheckStatus checkStatus) |
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82 { |
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83 switch (checkStatus) |
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84 { |
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85 case CheckStatus.Error: return Resources.icon_error; |
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86 case CheckStatus.Warning: return Resources.icon_warning; |
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87 case CheckStatus.Information: return Resources.icon_info; |
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88 default: return Resources.icon; |
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89 } |
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90 } |
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91 |
| 17 | 92 /// <summary>Returns whether an enum is in a list of values.</summary> |
| 93 /// <param name="value">The value to check.</param> | |
| 94 /// <param name="values">The list of possible values.</param> | |
| 95 /// <returns>True if the value was in the list, false otherwise.</returns> | |
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96 public static bool In(this Enum value, params Enum[] values) { |
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97 return values.Contains(value); |
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98 } |
| 4 | 99 |
| 100 // https://stackoverflow.com/a/8345173 | |
| 101 /// <summary> | |
| 102 /// Indicates whether any network connection is available. | |
| 103 /// Filter connections below a specified speed, as well as virtual network cards. | |
| 104 /// </summary> | |
| 105 /// <returns> | |
| 106 /// <c>true</c> if a network connection is available; otherwise, <c>false</c>. | |
| 107 /// </returns> | |
| 108 public static bool IsNetworkAvailable() | |
| 109 { | |
| 110 if (!NetworkInterface.GetIsNetworkAvailable()) | |
| 111 return false; | |
| 112 | |
| 113 foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces()) | |
| 114 { | |
| 115 // discard because of standard reasons | |
| 116 if ((ni.OperationalStatus != OperationalStatus.Up) || | |
| 117 (ni.NetworkInterfaceType == NetworkInterfaceType.Loopback) || | |
| 118 (ni.NetworkInterfaceType == NetworkInterfaceType.Tunnel)) | |
| 119 continue; | |
| 120 | |
| 121 // discard virtual cards (virtual box, virtual pc, etc.) | |
| 122 if ((ni.Description.IndexOf("virtual", StringComparison.OrdinalIgnoreCase) >= 0) || | |
| 123 (ni.Name.IndexOf("virtual", StringComparison.OrdinalIgnoreCase) >= 0)) | |
| 124 continue; | |
| 125 | |
| 126 // discard "Microsoft Loopback Adapter", it will not show as NetworkInterfaceType.Loopback but as Ethernet Card. | |
| 127 if (ni.Description.Equals("Microsoft Loopback Adapter", StringComparison.OrdinalIgnoreCase)) | |
| 128 continue; | |
| 129 | |
| 130 return true; | |
| 131 } | |
| 132 return false; | |
| 133 } | |
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134 } |
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135 } |