|
0
|
1 using Stocks.Common.Core;
|
|
|
2 using System.Collections;
|
|
|
3 using System;
|
|
|
4 using System.Collections.Generic;
|
|
|
5
|
|
|
6 namespace Stocks.Common.Models
|
|
|
7 {
|
|
|
8 public class Price : IEquatable<Price>, IComparable<Price>, IComparable
|
|
|
9 {
|
|
|
10 public string Symbol { get; set; }
|
|
|
11 public decimal CurrentPrice { get; set; }
|
|
|
12 public decimal PreviousPrice { get; set; }
|
|
|
13
|
|
|
14 public Price()
|
|
|
15 {
|
|
|
16 }
|
|
|
17
|
|
|
18 public Price(string symbol, decimal currentPrice, decimal previousPrice)
|
|
|
19 : this()
|
|
|
20 {
|
|
|
21 Symbol = symbol;
|
|
|
22 CurrentPrice = currentPrice;
|
|
|
23 PreviousPrice = previousPrice;
|
|
|
24 }
|
|
|
25
|
|
|
26 public override bool Equals(object obj)
|
|
|
27 {
|
|
|
28 if (obj is Price)
|
|
|
29 return Equals(obj as Price);
|
|
|
30 else
|
|
|
31 return false;
|
|
|
32 }
|
|
|
33
|
|
|
34 public bool Equals(Price other)
|
|
|
35 {
|
|
|
36 return (Symbol == other.Symbol
|
|
|
37 && CurrentPrice == other.CurrentPrice
|
|
|
38 && PreviousPrice == other.PreviousPrice);
|
|
|
39 }
|
|
|
40
|
|
|
41 public int CompareTo(Price other)
|
|
|
42 {
|
|
|
43 return Symbol.CompareTo(other.Symbol);
|
|
|
44 }
|
|
|
45
|
|
|
46 public int CompareTo(Price other, PriceComparisonType comparisonType)
|
|
|
47 {
|
|
|
48 switch (comparisonType)
|
|
|
49 {
|
|
|
50 case PriceComparisonType.NotSet:
|
|
|
51 case PriceComparisonType.Symbol:
|
|
|
52 return Symbol.CompareTo(other.Symbol);
|
|
|
53 case PriceComparisonType.CurrentPrice:
|
|
|
54 return CurrentPrice.CompareTo(other.CurrentPrice);
|
|
|
55 case PriceComparisonType.PreviousPrice:
|
|
|
56 return PreviousPrice.CompareTo(other.PreviousPrice);
|
|
|
57 default:
|
|
|
58 throw new Exception("Unknown comparison type");
|
|
|
59 }
|
|
|
60 }
|
|
|
61
|
|
|
62 public int CompareTo(object obj)
|
|
|
63 {
|
|
|
64 Price other;
|
|
|
65 if (obj is Price)
|
|
|
66 other = obj as Price;
|
|
|
67 else
|
|
|
68 throw new ArgumentException("obj is not a Price");
|
|
|
69
|
|
|
70 return CompareTo(other);
|
|
|
71 }
|
|
|
72 public override int GetHashCode()
|
|
|
73 {
|
|
|
74 int hash = 13;
|
|
|
75 hash = (hash * 7) + Symbol.GetHashCode();
|
|
|
76 hash = (hash * 7) + CurrentPrice.GetHashCode();
|
|
|
77 hash = (hash * 7) + PreviousPrice.GetHashCode();
|
|
|
78 return hash;
|
|
|
79 }
|
|
|
80
|
|
|
81 public static bool operator ==(Price lhs, Price rhs)
|
|
|
82 {
|
|
|
83 if (System.Object.ReferenceEquals(lhs, rhs))
|
|
|
84 return true;
|
|
|
85
|
|
|
86 if (((object)lhs == null) || ((object)rhs == null))
|
|
|
87 return false;
|
|
|
88
|
|
|
89 return lhs.Symbol == rhs.Symbol
|
|
|
90 && lhs.CurrentPrice == rhs.CurrentPrice
|
|
|
91 && lhs.PreviousPrice == rhs.PreviousPrice;
|
|
|
92 }
|
|
|
93
|
|
|
94 public static bool operator !=(Price lhs, Price rhs)
|
|
|
95 {
|
|
|
96 return !(lhs == rhs);
|
|
|
97 }
|
|
|
98
|
|
|
99
|
|
|
100 public class PriceComparer : IComparer<Price>, IComparer
|
|
|
101 {
|
|
|
102 public PriceComparisonType ComparisonMethod { get; set; }
|
|
|
103
|
|
|
104 public int Compare(Price x, Price y)
|
|
|
105 {
|
|
|
106 return x.CompareTo(y, ComparisonMethod);
|
|
|
107 }
|
|
|
108
|
|
|
109 public int Compare(object x, object y)
|
|
|
110 {
|
|
|
111 Price lhs, rhs;
|
|
|
112
|
|
|
113 if (x is Price)
|
|
|
114 lhs = x as Price;
|
|
|
115 else
|
|
|
116 throw new ArgumentException("x is not a Price");
|
|
|
117
|
|
|
118 if (y is Price)
|
|
|
119 rhs = y as Price;
|
|
|
120 else
|
|
|
121 throw new ArgumentException("y is not a Price");
|
|
|
122
|
|
|
123 return lhs.CompareTo(rhs, ComparisonMethod);
|
|
|
124 }
|
|
|
125 }
|
|
|
126 }
|
|
|
127
|
|
|
128 public enum PriceComparisonType { NotSet = 0, Symbol, CurrentPrice, PreviousPrice }
|
|
|
129 }
|
