|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* Discovering via config |
|
4
|
|
|
* User: moyo |
|
5
|
|
|
* Date: 2018/8/13 |
|
6
|
|
|
* Time: 11:59 AM |
|
7
|
|
|
*/ |
|
8
|
|
|
|
|
9
|
|
|
namespace Carno\Cluster\Discovery\Adaptors; |
|
10
|
|
|
|
|
11
|
|
|
use Carno\Cluster\Contracts\Tags; |
|
12
|
|
|
use Carno\Cluster\Discovery\Discovered; |
|
13
|
|
|
use Carno\Cluster\Managed; |
|
14
|
|
|
use Carno\Config\Config as Source; |
|
15
|
|
|
use Carno\Net\Address; |
|
16
|
|
|
use Carno\Net\Endpoint; |
|
17
|
|
|
use Carno\Net\Routing\Table; |
|
18
|
|
|
use Carno\Promise\Promised; |
|
19
|
|
|
|
|
20
|
|
|
class Config implements Discovered |
|
21
|
|
|
{ |
|
22
|
|
|
/** |
|
23
|
|
|
* @var Source |
|
24
|
|
|
*/ |
|
25
|
|
|
private $source = null; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* @var Managed[] |
|
29
|
|
|
*/ |
|
30
|
|
|
private $managed = []; |
|
31
|
|
|
|
|
32
|
|
|
/** |
|
33
|
|
|
* Config constructor. |
|
34
|
|
|
* @param Source $config |
|
35
|
|
|
*/ |
|
36
|
|
|
public function __construct(Source $config) |
|
37
|
|
|
{ |
|
38
|
|
|
$this->source = $config; |
|
39
|
|
|
} |
|
40
|
|
|
|
|
41
|
|
|
/** |
|
42
|
|
|
* @param string $group |
|
43
|
|
|
* @param string $server |
|
44
|
|
|
* @param Managed $managed |
|
45
|
|
|
* @return Promised |
|
46
|
|
|
*/ |
|
47
|
|
|
public function attach(string $group, string $server, Managed $managed) : Promised |
|
48
|
|
|
{ |
|
49
|
|
|
$table = new Table; |
|
50
|
|
|
|
|
51
|
|
|
$this->managed[$named = $this->named($group, $server)] = $managed; |
|
52
|
|
|
|
|
53
|
|
|
$this->source->watching($named, static function (string $dsn = null) use ($table, $named, $managed) { |
|
54
|
|
|
foreach ($table->reset(...self::endpoints($dsn ?? '', $named)) as $op) { |
|
55
|
|
|
$op->joined() && $managed->routing()->join($op->target()); |
|
56
|
|
|
$op->leaved() && $managed->routing()->leave($op->target()); |
|
57
|
|
|
} |
|
58
|
|
|
}); |
|
59
|
|
|
|
|
60
|
|
|
return $managed->joined(); |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
/** |
|
64
|
|
|
* @param string $group |
|
65
|
|
|
* @param string $server |
|
66
|
|
|
* @return Promised |
|
67
|
|
|
*/ |
|
68
|
|
|
public function detach(string $group, string $server) : Promised |
|
69
|
|
|
{ |
|
70
|
|
|
return $this->managed[$this->named($group, $server)]->shutdown(); |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** |
|
74
|
|
|
* @param string $group |
|
75
|
|
|
* @param string $server |
|
76
|
|
|
* @return string |
|
77
|
|
|
*/ |
|
78
|
|
|
private function named(string $group, string $server) : string |
|
79
|
|
|
{ |
|
80
|
|
|
return sprintf('%s:%s', $group, $server); |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
/** |
|
84
|
|
|
* @param string $conf |
|
85
|
|
|
* @param string $named |
|
86
|
|
|
* @return Endpoint[] |
|
87
|
|
|
*/ |
|
88
|
|
|
private static function endpoints(string $conf, string $named) : array |
|
89
|
|
|
{ |
|
90
|
|
|
$endpoints = []; |
|
91
|
|
|
|
|
92
|
|
|
foreach (explode("\n", $conf) as $expr) { |
|
93
|
|
|
$expr = preg_replace('!\s+!', ' ', $expr); |
|
94
|
|
|
|
|
95
|
|
|
$tags = Tags::DEFAULT; |
|
96
|
|
|
$dsn = $expr; |
|
97
|
|
|
|
|
98
|
|
|
if ($tsp = strpos($expr, ' ')) { |
|
99
|
|
|
$tags = explode(',', substr($expr, $tsp - strlen($expr) + 1)); |
|
100
|
|
|
$dsn = substr($expr, 0, $tsp); |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
$endpoints[] = (new Endpoint(new Address($dsn))) |
|
104
|
|
|
->relatedService($named) |
|
105
|
|
|
->assignID(md5($expr)) |
|
106
|
|
|
->setTags(...$tags); |
|
107
|
|
|
; |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
|
|
return $endpoints; |
|
111
|
|
|
} |
|
112
|
|
|
} |
|
113
|
|
|
|
carno-php /
cluster
