-
Notifications
You must be signed in to change notification settings - Fork 1.9k
Expand file tree
/
Copy pathLogger.cs
More file actions
205 lines (184 loc) · 5.6 KB
/
Logger.cs
File metadata and controls
205 lines (184 loc) · 5.6 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
using System;
using System.IO;
namespace Semmle.Util.Logging
{
/// <summary>
/// The severity of a log message.
/// </summary>
public enum Severity
{
Trace = 1,
Debug = 2,
Info = 3,
Warning = 4,
Error = 5
}
/// <summary>
/// Log verbosity level.
/// </summary>
public enum Verbosity
{
Off = 0,
Error = 1,
Warning = 2,
Info = 3,
Debug = 4,
Trace = 5,
All = 6
}
/// <summary>
/// A logger.
/// </summary>
public interface ILogger : IDisposable
{
/// <summary>
/// Log the given text with the given severity.
/// </summary>
void Log(Severity s, string text);
}
public static class LoggerExtensions
{
/// <summary>
/// Log the given text with the given severity.
/// </summary>
public static void Log(this ILogger logger, Severity s, string text, params object?[] args)
{
logger.Log(s, string.Format(text, args));
}
}
/// <summary>
/// A logger that outputs to a <code>csharp.log</code>
/// file.
/// </summary>
public sealed class FileLogger : ILogger
{
private readonly StreamWriter writer;
private readonly Verbosity verbosity;
private readonly bool logThreadId;
public FileLogger(Verbosity verbosity, string outputFile, bool logThreadId)
{
this.verbosity = verbosity;
this.logThreadId = logThreadId;
try
{
var dir = Path.GetDirectoryName(outputFile);
if (!string.IsNullOrEmpty(dir) && !System.IO.Directory.Exists(dir))
Directory.CreateDirectory(dir);
writer = new PidStreamWriter(
new FileStream(outputFile, FileMode.Append, FileAccess.Write, FileShare.ReadWrite, 8192));
}
catch (Exception ex) // lgtm[cs/catch-of-all-exceptions]
{
Console.Error.WriteLine("CodeQL: Couldn't initialise C# extractor output: " + ex.Message + "\n" + ex.StackTrace);
Console.Error.Flush();
throw;
}
}
public void Dispose()
{
writer.Dispose();
}
private static string GetSeverityPrefix(Severity s)
{
return "[" + s.ToString().ToUpper() + "] ";
}
public void Log(Severity s, string text)
{
if (verbosity.Includes(s))
{
var threadId = this.logThreadId ? $"[{Environment.CurrentManagedThreadId:D3}] " : "";
writer.WriteLine(threadId + GetSeverityPrefix(s) + text);
}
}
}
/// <summary>
/// A logger that outputs to stdout/stderr.
/// </summary>
public sealed class ConsoleLogger : ILogger
{
private readonly Verbosity verbosity;
private readonly bool logThreadId;
public ConsoleLogger(Verbosity verbosity, bool logThreadId)
{
this.verbosity = verbosity;
this.logThreadId = logThreadId;
}
public void Dispose() { }
private static TextWriter GetConsole(Severity s)
{
return s == Severity.Error ? Console.Error : Console.Out;
}
private static string GetSeverityPrefix(Severity s)
{
switch (s)
{
case Severity.Trace:
case Severity.Debug:
case Severity.Info:
return "";
case Severity.Warning:
return "Warning: ";
case Severity.Error:
return "Error: ";
default:
throw new ArgumentOutOfRangeException(nameof(s));
}
}
public void Log(Severity s, string text)
{
if (verbosity.Includes(s))
{
var threadId = this.logThreadId ? $"[{Environment.CurrentManagedThreadId:D3}] " : "";
GetConsole(s).WriteLine(threadId + GetSeverityPrefix(s) + text);
}
}
}
/// <summary>
/// A combined logger.
/// </summary>
public sealed class CombinedLogger : ILogger
{
private readonly ILogger logger1;
private readonly ILogger logger2;
public CombinedLogger(ILogger logger1, ILogger logger2)
{
this.logger1 = logger1;
this.logger2 = logger2;
}
public void Dispose()
{
logger1.Dispose();
logger2.Dispose();
}
public void Log(Severity s, string text)
{
logger1.Log(s, text);
logger2.Log(s, text);
}
}
internal static class VerbosityExtensions
{
/// <summary>
/// Whether a message with the given severity must be included
/// for this verbosity level.
/// </summary>
public static bool Includes(this Verbosity v, Severity s)
{
switch (s)
{
case Severity.Trace:
return v >= Verbosity.Trace;
case Severity.Debug:
return v >= Verbosity.Debug;
case Severity.Info:
return v >= Verbosity.Info;
case Severity.Warning:
return v >= Verbosity.Warning;
case Severity.Error:
return v >= Verbosity.Error;
default:
throw new ArgumentOutOfRangeException(nameof(s));
}
}
}
}