MediaWiki  1.23.12
LockManagerGroup.php
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1 <?php
33  protected static $instances = array();
34 
35  protected $domain; // string; domain (usually wiki ID)
36 
38  protected $managers = array();
39 
43  protected function __construct( $domain ) {
44  $this->domain = $domain;
45  }
46 
51  public static function singleton( $domain = false ) {
52  $domain = ( $domain === false ) ? wfWikiID() : $domain;
53  if ( !isset( self::$instances[$domain] ) ) {
54  self::$instances[$domain] = new self( $domain );
55  self::$instances[$domain]->initFromGlobals();
56  }
57 
58  return self::$instances[$domain];
59  }
60 
64  public static function destroySingletons() {
65  self::$instances = array();
66  }
67 
71  protected function initFromGlobals() {
73 
74  $this->register( $wgLockManagers );
75  }
76 
83  protected function register( array $configs ) {
84  foreach ( $configs as $config ) {
85  $config['domain'] = $this->domain;
86  if ( !isset( $config['name'] ) ) {
87  throw new MWException( "Cannot register a lock manager with no name." );
88  }
89  $name = $config['name'];
90  if ( !isset( $config['class'] ) ) {
91  throw new MWException( "Cannot register lock manager `{$name}` with no class." );
92  }
93  $class = $config['class'];
94  unset( $config['class'] ); // lock manager won't need this
95  $this->managers[$name] = array(
96  'class' => $class,
97  'config' => $config,
98  'instance' => null
99  );
100  }
101  }
102 
110  public function get( $name ) {
111  if ( !isset( $this->managers[$name] ) ) {
112  throw new MWException( "No lock manager defined with the name `$name`." );
113  }
114  // Lazy-load the actual lock manager instance
115  if ( !isset( $this->managers[$name]['instance'] ) ) {
116  $class = $this->managers[$name]['class'];
117  $config = $this->managers[$name]['config'];
118  $this->managers[$name]['instance'] = new $class( $config );
119  }
120 
121  return $this->managers[$name]['instance'];
122  }
123 
131  public function config( $name ) {
132  if ( !isset( $this->managers[$name] ) ) {
133  throw new MWException( "No lock manager defined with the name `$name`." );
134  }
135  $class = $this->managers[$name]['class'];
136 
137  return array( 'class' => $class ) + $this->managers[$name]['config'];
138  }
139 
146  public function getDefault() {
147  return isset( $this->managers['default'] )
148  ? $this->get( 'default' )
149  : new NullLockManager( array() );
150  }
151 
160  public function getAny() {
161  return isset( $this->managers['default'] )
162  ? $this->get( 'default' )
163  : $this->get( 'fsLockManager' );
164  }
165 }
php
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Definition: skin.txt:62
LockManagerGroup\destroySingletons
static destroySingletons()
Destroy the singleton instances.
Definition: LockManagerGroup.php:63
LockManagerGroup\singleton
static singleton( $domain=false)
Definition: LockManagerGroup.php:50
LockManagerGroup\$instances
static $instances
Definition: LockManagerGroup.php:33
LockManagerGroup\getAny
getAny()
Get the default lock manager configured for the site or at least some other effective configured lock...
Definition: LockManagerGroup.php:159
MWException
MediaWiki exception.
Definition: MWException.php:26
NullLockManager
Simple version of LockManager that does nothing.
Definition: LockManager.php:253
LockManagerGroup
Class to handle file lock manager registration.
Definition: LockManagerGroup.php:31
array
the array() calling protocol came about after MediaWiki 1.4rc1.
List of Api Query prop modules.
global
when a variable name is used in a it is silently declared as a new masking the global
Definition: design.txt:93
LockManagerGroup\$domain
$domain
Definition: LockManagerGroup.php:35
false
processing should stop and the error should be shown to the user * false
Definition: hooks.txt:188
$wgLockManagers
$wgLockManagers[]
Initialise $wgLockManagers to include basic FS version.
Definition: Setup.php:148
wfWikiID
wfWikiID()
Get an ASCII string identifying this wiki This is used as a prefix in memcached keys.
Definition: GlobalFunctions.php:3660
$name
Allows to change the fields on the form that will be generated $name
Definition: hooks.txt:336
LockManagerGroup\initFromGlobals
initFromGlobals()
Register lock managers from the global variables.
Definition: LockManagerGroup.php:70
LockManagerGroup\config
config( $name)
Get the config array for a lock manager object with a given name.
Definition: LockManagerGroup.php:130
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Definition: distributors.txt:9
LockManagerGroup\getDefault
getDefault()
Get the default lock manager configured for the site.
Definition: LockManagerGroup.php:145
LockManagerGroup\__construct
__construct( $domain)
Definition: LockManagerGroup.php:42
LockManagerGroup\$managers
array $managers
of (name => ('class' => ..., 'config' => ..., 'instance' => ...)) *
Definition: LockManagerGroup.php:37