ocean.util.log.layout.LayoutStatsLog source code

1 /*******************************************************************************
2 
3    Slightly modified LayoutDate class. Does NOT output the level.
4    Intended for StatsLog.
5 
6    Copyright:
7        Copyright (c) 2004 Kris Bell.
8        Some parts copyright (c) 2009-2016 dunnhumby Germany GmbH.
9        All rights reserved.
10 
11    License:
12        Tango Dual License: 3-Clause BSD License / Academic Free License v3.0.
13        See LICENSE_TANGO.txt for details.
14 
15    Version: Initial release: May 2004
16 
17    Authors: Kris & Mathias Baumann
18 
19 *******************************************************************************/
20 
21 module ocean.util.log.layout.LayoutStatsLog;
22 
23 import ocean.transition;
24 import Integer = ocean.text.convert.Integer_tango;
25 import ocean.text.Util;
26 import ocean.time.Clock;
27 import ocean.time.WallClock;
28 import ocean.util.log.Appender;
29 import ocean.util.log.Event;
30 
31 
32 /*******************************************************************************
33 
34    A layout with ISO-8601 date information prefixed to each message
35 
36 *******************************************************************************/
37 
38 public class LayoutStatsLog : Appender.Layout
39 {
40    private bool localTime;
41 
42     /***************************************************************************
43 
44         Ctor with indicator for local vs UTC time. Default is local time.
45 
46     ***********************************************************************/
47 
48     public this (bool localTime = true)
49     {
50         this.localTime = localTime;
51     }
52 
53     /***************************************************************************
54 
55         Subclasses should implement this method to perform the formatting
56         of the actual message content.
57 
58     ***************************************************************************/
59 
60     public override void format (LogEvent event, scope void delegate(cstring) dg)
61     {
62         auto level = event.levelName;
63 
64         // convert time to field values
65         auto tm = event.time;
66         auto dt = (localTime) ? WallClock.toDate(tm) : Clock.toDate(tm);
67 
68         // format date according to ISO-8601 (lightweight formatter)
69         char[20] tmp = void;
70         char[256] tmp2 = void;
71         dg(layout(tmp2, "%0-%1-%2 %3:%4:%5,%6 ",
72                   convert(tmp[0..4],   dt.date.year),
73                   convert(tmp[4..6],   dt.date.month),
74                   convert(tmp[6..8],   dt.date.day),
75                   convert(tmp[8..10],  dt.time.hours),
76                   convert(tmp[10..12], dt.time.minutes),
77                   convert(tmp[12..14], dt.time.seconds),
78                   convert(tmp[14..17], dt.time.millis)));
79         dg(event.toString);
80     }
81 
82     /***************************************************************************
83 
84         Convert an integer to a zero prefixed text representation
85 
86     ***************************************************************************/
87 
88     private cstring convert (mstring tmp, long i)
89     {
90         return Integer.formatter(tmp, i, 'u', '?', 8);
91     }
92 }