blob: b10342e809f06d2fddd18eb721bae078fe62a179 (
plain)
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
|
<?php
/**
* Caches an EchoContainmentList within a BagOStuff(memcache, etc) to prevent needing
* to load the nested list from a potentially slow source (mysql, etc).
*/
class EchoCachedList implements EchoContainmentList {
const ONE_WEEK = 4233600;
const ONE_DAY = 86400;
protected $cache;
protected $partialCacheKey;
protected $nestedList;
protected $timeout;
private $result;
/**
* @param BagOStuff $cache Bag to stored cached data in.
* @param string $partialCacheKey Partial cache key, $nestedList->getCacheKey() will be appended
* to this to construct the cache key used.
* @param EchoContainmentList $nestedList The nested EchoContainmentList to cache the result of.
* @param int $timeout How long in seconds to cache the nested list, defaults to 1 week.
*/
public function __construct( BagOStuff $cache, $partialCacheKey, EchoContainmentList $nestedList, $timeout = self::ONE_WEEK ) {
$this->cache = $cache;
$this->partialCacheKey = $partialCacheKey;
$this->nestedList = $nestedList;
$this->timeout = $timeout;
}
/**
* @inheritDoc
*/
public function getValues() {
if ( $this->result ) {
return $this->result;
}
$this->result = $this->cache->getWithSetCallback(
$this->getCacheKey(),
$this->timeout,
function () {
$result = $this->nestedList->getValues();
if ( !is_array( $result ) ) {
throw new MWException( sprintf(
"Expected array but received '%s' from '%s::getValues'",
is_object( $result ) ? get_class( $result ) : gettype( $result ),
get_class( $this->nestedList )
) );
}
return $result;
}
);
return $this->result;
}
/**
* @inheritDoc
*/
public function getCacheKey() {
return $this->partialCacheKey . '_' . $this->nestedList->getCacheKey();
}
}
|
GitWeb
