bin/projects/dbatools/dbatools/Utility/Size.cs
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using System; namespace Sqlcollaborative.Dbatools.Utility { /// <summary> /// Class that reports File size. /// </summary> [Serializable] public class Size : IComparable<Size>, IComparable { /// <summary> /// Number of bytes contained in whatever object uses this object as a property /// </summary> public long Byte { get; set; } /// <summary> /// Kilobyte representation of the bytes /// </summary> public double Kilobyte { get { return (Byte / 1024d); } } /// <summary> /// Megabyte representation of the bytes /// </summary> public double Megabyte { get { return (Byte / 1048576d); } } /// <summary> /// Gigabyte representation of the bytes /// </summary> public double Gigabyte { get { return (Byte / 1073741824d); } } /// <summary> /// Terabyte representation of the bytes /// </summary> public double Terabyte { get { return (Byte / 1099511627776d); } } /// <summary> /// Number if digits behind the dot. /// </summary> public int? Digits { get { return _digits ?? UtilityHost.SizeDigits; } set { _digits = value == null ? null : (value.Value <= 0 ? 0 : value); } } private int? _digits; /// <summary> /// How the size object should be displayed. /// </summary> public SizeStyle? Style { get { return _style ?? UtilityHost.SizeStyle; } set { _style = value; } } private SizeStyle? _style; /// <summary> /// Shows the default string representation of size /// </summary> /// <returns></returns> public override string ToString() { string format = "{0:N" + Digits + "} {1}"; switch (Style) { case SizeStyle.Plain: return Byte.ToString(); case SizeStyle.Byte: return (String.Format("{0} {1}", Byte, "B")); case SizeStyle.Kilobyte: return (String.Format(format, Kilobyte, "KB")); case SizeStyle.Megabyte: return (String.Format(format, Megabyte, "MB")); case SizeStyle.Gigabyte: return (String.Format(format, Gigabyte, "GB")); case SizeStyle.Terabyte: return (String.Format(format, Terabyte, "TB")); default: if (Terabyte > 1) { return (String.Format(format, Terabyte, "TB")); } if (Gigabyte > 1) { return (String.Format(format, Gigabyte, "GB")); } if (Megabyte > 1) { return (String.Format(format, Megabyte, "MB")); } if (Kilobyte > 1) { return (String.Format(format, Kilobyte, "KB")); } if (Byte > -1) { return (String.Format("{0} {1}", Byte, "B")); } if (Byte == -1) return "Unlimited"; return ""; } } /// <summary> /// Simple equality test /// </summary> /// <param name="obj">The object to test it against</param> /// <returns>True if equal, false elsewise</returns> public override bool Equals(object obj) { var size = obj as Size; return (size != null && (Byte == size.Byte)); } /// <inheritdoc cref="Int64.GetHashCode"/> /// <remarks>The hashcode of the underlying size</remarks> public override int GetHashCode() { // ReSharper disable once NonReadonlyMemberInGetHashCode return Byte.GetHashCode(); } /// <summary> /// Creates an empty size. /// </summary> public Size() { } /// <summary> /// Creates a size with some content /// </summary> /// <param name="Byte">The length in bytes to set the size to</param> public Size(long Byte) { this.Byte = Byte; } /// <inheritdoc cref="IComparable{Size}.CompareTo"/> /// <remarks>For sorting</remarks> public int CompareTo(Size obj) { return Byte.CompareTo(obj.Byte); } /// <inheritdoc cref="IComparable.CompareTo"/> /// <remarks>For sorting</remarks> /// <exception cref="ArgumentException">If you compare with something invalid.</exception> public int CompareTo(object obj) { var size = obj as Size; if (size != null) { return CompareTo(size); } throw new ArgumentException(String.Format("Cannot compare a {0} to a {1}", typeof(Size).FullName, obj.GetType().FullName)); } #region MathOperators /// <summary> /// Adds two sizes /// </summary> /// <param name="a">The first size to add</param> /// <param name="b">The second size to add</param> /// <returns>The sum of both sizes</returns> public static Size operator +(Size a, Size b) { return new Size(a.Byte + b.Byte); } /// <summary> /// Substracts two sizes /// </summary> /// <param name="a">The first size to substract</param> /// <param name="b">The second size to substract</param> /// <returns>The difference between both sizes</returns> public static Size operator -(Size a, Size b) { return new Size(a.Byte - b.Byte); } /// <summary> /// Multiplies two sizes with each other /// </summary> /// <param name="a">The size to multiply</param> /// <param name="b">The size to multiply with</param> /// <returns>A multiplied size.</returns> public static Size operator *(Size a, double b) { return new Size((long)(a.Byte * b)); } /// <summary> /// Divides one size by another. /// </summary> /// <param name="a">The size to divide</param> /// <param name="b">The size to divide with</param> /// <returns>Divided size (note: Cut off)</returns> public static Size operator /(Size a, double b) { return new Size((long)((double)a.Byte / b)); } /// <summary> /// Multiplies two sizes with each other /// </summary> /// <param name="a">The size to multiply</param> /// <param name="b">The size to multiply with</param> /// <returns>A multiplied size.</returns> public static Size operator *(Size a, Size b) { return new Size(a.Byte * b.Byte); } /// <summary> /// Divides one size by another. /// </summary> /// <param name="a">The size to divide</param> /// <param name="b">The size to divide with</param> /// <returns>Divided size (note: Cut off)</returns> public static Size operator /(Size a, Size b) { return new Size((long)((double)a.Byte / (double)b.Byte)); } #endregion #region ImplicitCasts /// <summary> /// Implicitly converts int to size /// </summary> /// <param name="a">The number to convert</param> public static implicit operator Size(int a) { return new Size(a); } /// <summary> /// Implicitly converts int to size /// </summary> /// <param name="a">The number to convert</param> public static implicit operator Size(decimal a) { return new Size((long)a); } /// <summary> /// Implicitly converts size to int /// </summary> /// <param name="a">The size to convert</param> public static implicit operator Int32(Size a) { return (Int32)a.Byte; } /// <summary> /// Implicitly converts long to size /// </summary> /// <param name="a">The number to convert</param> public static implicit operator Size(long a) { return new Size(a); } /// <summary> /// Implicitly converts size to long /// </summary> /// <param name="a">The size to convert</param> public static implicit operator Int64(Size a) { return a.Byte; } /// <summary> /// Implicitly converts string to size /// </summary> /// <param name="a">The string to convert</param> public static implicit operator Size(String a) { return new Size(Int64.Parse(a)); } /// <summary> /// Implicitly converts double to size /// </summary> /// <param name="a">The number to convert</param> public static implicit operator Size(double a) { return new Size((long)a); } /// <summary> /// Implicitly converts size to double /// </summary> /// <param name="a">The size to convert</param> public static implicit operator double(Size a) { return a.Byte; } #endregion Operators } } |