hunt.http.Util source code

1 module hunt.http.Util;
2 
3 import hunt.concurrency.Executors;
4 import hunt.concurrency.ExecutorService;
5 import hunt.concurrency.Scheduler;
6 import hunt.concurrency.ScheduledThreadPoolExecutor;
7 
8 import std.concurrency : initOnce;
9 
10 import std.array;
11 import std.conv;
12 import std.datetime;
13 import std.string;
14 
15 /**
16  * 
17  */
18 struct CommonUtil {
19     
20     static ScheduledThreadPoolExecutor scheduler() {
21         return initOnce!_scheduler(cast(ScheduledThreadPoolExecutor) Executors.newScheduledThreadPool(5));
22     }
23     private __gshared ScheduledThreadPoolExecutor _scheduler;
24 
25     static void stopScheduler() {
26         if (_scheduler !is null) {
27             _scheduler.shutdown();
28         }
29     }
30 
31 
32     /// convert time to RFC822 format string
33     static string toRFC822DateTimeString(SysTime systime) {
34         Appender!string ret;
35 
36         DateTime dt = cast(DateTime)systime;
37         Date date = dt.date;
38 
39         ret.put(to!string(date.dayOfWeek).capitalize);
40         ret.put(", ");
41         ret.put(rightJustify(to!string(date.day), 2, '0'));
42         ret.put(" ");
43         ret.put(to!string(date.month).capitalize);
44         ret.put(" ");
45         ret.put(to!string(date.year));
46         ret.put(" ");
47 
48         TimeOfDay time = cast(TimeOfDay)systime;
49         int tz_offset = cast(int)systime.utcOffset.total!"minutes";
50 
51         ret.put(rightJustify(to!string(time.hour), 2, '0'));
52         ret.put(":");
53         ret.put(rightJustify(to!string(time.minute), 2, '0'));
54         ret.put(":");
55         ret.put(rightJustify(to!string(time.second), 2, '0'));
56 
57         if (tz_offset == 0)
58         {
59             ret.put(" GMT");
60         }
61         else
62         {
63             ret.put(" " ~ (tz_offset >= 0 ? "+" : "-"));
64 
65             if (tz_offset < 0) tz_offset = -tz_offset;
66             ret.put(rightJustify(to!string(tz_offset / 60), 2, '0'));
67             ret.put(rightJustify(to!string(tz_offset % 60), 2, '0'));
68         }
69 
70         return ret.data;
71     }    
72 }