|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Daikon\CouchDb\Storage; |
|
4
|
|
|
|
|
5
|
|
|
use Daikon\CouchDb\Connector\CouchDbConnector; |
|
6
|
|
|
use Daikon\Dbal\Exception\DbalException; |
|
7
|
|
|
use Daikon\EventSourcing\EventStore\Commit\CommitSequence; |
|
8
|
|
|
use Daikon\EventSourcing\EventStore\Commit\CommitSequenceInterface; |
|
9
|
|
|
use Daikon\EventSourcing\EventStore\Storage\StorageAdapterInterface; |
|
10
|
|
|
use GuzzleHttp\Exception\RequestException; |
|
11
|
|
|
use GuzzleHttp\Psr7\Request; |
|
12
|
|
|
|
|
13
|
|
|
final class CouchDbStorageAdapter implements StorageAdapterInterface |
|
14
|
|
|
{ |
|
15
|
|
|
private $connector; |
|
16
|
|
|
|
|
17
|
|
|
private $settings; |
|
18
|
|
|
|
|
19
|
|
|
public function __construct(CouchDbConnector $connector, array $settings = []) |
|
20
|
|
|
{ |
|
21
|
|
|
$this->connector = $connector; |
|
22
|
|
|
$this->settings = $settings; |
|
23
|
|
|
} |
|
24
|
|
|
|
|
25
|
|
|
public function load(string $identifier): CommitSequenceInterface |
|
26
|
|
|
{ |
|
27
|
|
|
$viewPath = sprintf( |
|
28
|
|
|
'/_design/%s/_view/%s', |
|
29
|
|
|
$this->settings['design_doc'], |
|
30
|
|
|
$this->settings['view_name'] ?? 'commit_stream' |
|
31
|
|
|
); |
|
32
|
|
|
|
|
33
|
|
|
$viewParams = [ |
|
34
|
|
|
'startkey' => sprintf('["%s", {}]', $identifier), |
|
35
|
|
|
'endkey' => sprintf('["%s", 1]', $identifier), |
|
36
|
|
|
'include_docs' => 'true', |
|
37
|
|
|
'reduce' => 'false', |
|
38
|
|
|
'descending' => 'true', |
|
39
|
|
|
'limit' => 1000 // @todo use snapshot size config setting as soon as available |
|
40
|
|
|
]; |
|
41
|
|
|
|
|
42
|
|
|
try { |
|
43
|
|
|
$response = $this->request($viewPath, 'GET', [], $viewParams); |
|
44
|
|
|
$rawResponse = json_decode($response->getBody(), true); |
|
45
|
|
|
} catch (RequestException $error) { |
|
46
|
|
|
if ($error->hasResponse() && $error->getResponse()->getStatusCode() === 404) { |
|
47
|
|
|
return CommitSequence::makeEmpty(); |
|
48
|
|
|
} else { |
|
49
|
|
|
throw $error; |
|
50
|
|
|
} |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
if (!isset($rawResponse['total_rows'])) { |
|
54
|
|
|
throw new DbalException('Failed to read data for '.$identifier); |
|
55
|
|
|
} |
|
56
|
|
|
|
|
57
|
|
|
return CommitSequence::fromArray(array_map(function (array $commitData) { |
|
58
|
|
|
return $commitData['doc']; |
|
59
|
|
|
}, array_reverse($rawResponse['rows']))); |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
public function append(string $identifier, array $body): void |
|
63
|
|
|
{ |
|
64
|
|
|
$response = $this->request($identifier, 'PUT', $body); |
|
65
|
|
|
$rawResponse = json_decode($response->getBody(), true); |
|
66
|
|
|
|
|
67
|
|
|
if (!isset($rawResponse['ok']) || !isset($rawResponse['rev'])) { |
|
68
|
|
|
throw new DbalException('Failed to write data for '.$identifier); |
|
69
|
|
|
} |
|
70
|
|
|
} |
|
71
|
|
|
|
|
72
|
|
|
public function purge(string $identifier): void |
|
73
|
|
|
{ |
|
74
|
|
|
throw new DbalException('Not yet implemented'); |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
private function request(string $identifier, string $method, array $body = [], array $params = []) |
|
78
|
|
|
{ |
|
79
|
|
|
$uri = $this->buildUri($identifier, $params); |
|
80
|
|
|
|
|
81
|
|
|
$request = empty($body) |
|
82
|
|
|
? new Request($method, $uri) |
|
83
|
|
|
: new Request($method, $uri, [], json_encode($body)); |
|
84
|
|
|
|
|
85
|
|
|
return $this->connector->getConnection()->send($request); |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
private function buildUri(string $identifier, array $params = []) |
|
89
|
|
|
{ |
|
90
|
|
|
$settings = $this->connector->getSettings(); |
|
91
|
|
|
$uri = sprintf('/%s/%s', $settings['database'], $identifier); |
|
92
|
|
|
if (!empty($params)) { |
|
93
|
|
|
$uri .= '?'.http_build_query($params); |
|
94
|
|
|
} |
|
95
|
|
|
return str_replace('//', '/', $uri); |
|
96
|
|
|
} |
|
97
|
|
|
} |
|
98
|
|
|
|
daikon-cqrs /
couchdb-adapter
