/**
* The persistent store object. An instance of LCStore.
+ *
+ * @var LCStore
*/
var $store;
'dateFormats', 'datePreferences', 'datePreferenceMigrationMap',
'defaultDateFormat', 'extraUserToggles', 'specialPageAliases',
'imageFiles', 'preloadedMessages', 'namespaceGenderAliases',
+ 'digitGroupingPattern'
);
/**
*/
static public $preloadedKeys = array( 'dateFormats', 'namespaceNames' );
+ var $mergeableKeys = null;
+
/**
* Constructor.
* For constructor parameters, see the documentation in DefaultSettings.php
case 'db':
$storeClass = 'LCStore_DB';
break;
+ case 'accel':
+ $storeClass = 'LCStore_Accel';
+ break;
case 'detect':
$storeClass = $wgCacheDirectory ? 'LCStore_CDB' : 'LCStore_DB';
break;
/**
* Returns true if the given key is mergeable, that is, if it is an associative
* array which can be merged through a fallback sequence.
+ * @param $key
+ * @return bool
*/
public function isMergeableKey( $key ) {
- if ( !isset( $this->mergeableKeys ) ) {
+ if ( $this->mergeableKeys === null ) {
$this->mergeableKeys = array_flip( array_merge(
self::$mergeableMapKeys,
self::$mergeableListKeys,
*
* Warning: this may be slow for split items (messages), since it will
* need to fetch all of the subitems from the cache individually.
+ * @param $code
+ * @param $key
+ * @return mixed
*/
public function getItem( $code, $key ) {
if ( !isset( $this->loadedItems[$code][$key] ) ) {
$this->loadItem( $code, $key );
wfProfileOut( __METHOD__.'-load' );
}
+
if ( $key === 'fallback' && isset( $this->shallowFallbacks[$code] ) ) {
return $this->shallowFallbacks[$code];
}
+
return $this->data[$code][$key];
}
/**
* Get a subitem, for instance a single message for a given language.
+ * @param $code
+ * @param $key
+ * @param $subkey
+ * @return null
*/
public function getSubitem( $code, $key, $subkey ) {
- if ( !isset( $this->loadedSubitems[$code][$key][$subkey] )
- && !isset( $this->loadedItems[$code][$key] ) )
- {
+ if ( !isset( $this->loadedSubitems[$code][$key][$subkey] ) &&
+ !isset( $this->loadedItems[$code][$key] ) ) {
wfProfileIn( __METHOD__.'-load' );
$this->loadSubitem( $code, $key, $subkey );
wfProfileOut( __METHOD__.'-load' );
}
+
if ( isset( $this->data[$code][$key][$subkey] ) ) {
return $this->data[$code][$key][$subkey];
} else {
*
* Will return null if the item is not found, or false if the item is not an
* array.
+ * @param $code
+ * @param $key
+ * @return bool|null|string
*/
public function getSubitemList( $code, $key ) {
if ( in_array( $key, self::$splitKeys ) ) {
/**
* Load an item into the cache.
+ * @param $code
+ * @param $key
*/
protected function loadItem( $code, $key ) {
if ( !isset( $this->initialisedLangs[$code] ) ) {
$this->initLanguage( $code );
}
+
// Check to see if initLanguage() loaded it for us
if ( isset( $this->loadedItems[$code][$key] ) ) {
return;
}
+
if ( isset( $this->shallowFallbacks[$code] ) ) {
$this->loadItem( $this->shallowFallbacks[$code], $key );
return;
}
+
if ( in_array( $key, self::$splitKeys ) ) {
$subkeyList = $this->getSubitem( $code, 'list', $key );
foreach ( $subkeyList as $subkey ) {
} else {
$this->data[$code][$key] = $this->store->get( $code, $key );
}
+
$this->loadedItems[$code][$key] = true;
}
/**
* Load a subitem into the cache
+ * @param $code
+ * @param $key
+ * @param $subkey
+ * @return
*/
protected function loadSubitem( $code, $key, $subkey ) {
if ( !in_array( $key, self::$splitKeys ) ) {
$this->loadItem( $code, $key );
return;
}
+
if ( !isset( $this->initialisedLangs[$code] ) ) {
$this->initLanguage( $code );
}
+
// Check to see if initLanguage() loaded it for us
- if ( isset( $this->loadedItems[$code][$key] )
- || isset( $this->loadedSubitems[$code][$key][$subkey] ) )
- {
+ if ( isset( $this->loadedItems[$code][$key] ) ||
+ isset( $this->loadedSubitems[$code][$key][$subkey] ) ) {
return;
}
+
if ( isset( $this->shallowFallbacks[$code] ) ) {
$this->loadSubitem( $this->shallowFallbacks[$code], $key, $subkey );
return;
}
+
$value = $this->store->get( $code, "$key:$subkey" );
$this->data[$code][$key][$subkey] = $value;
$this->loadedSubitems[$code][$key][$subkey] = true;
}
$deps = $this->store->get( $code, 'deps' );
- if ( $deps === null ) {
+ $keys = $this->store->get( $code, 'list', 'messages' );
+ $preload = $this->store->get( $code, 'preload' );
+ // Different keys may expire separately, at least in LCStore_Accel
+ if ( $deps === null || $keys === null || $preload === null ) {
wfDebug( __METHOD__."($code): cache missing, need to make one\n" );
return true;
}
+
foreach ( $deps as $dep ) {
// Because we're unserializing stuff from cache, we
// could receive objects of classes that don't exist
return true;
}
}
+
return false;
}
/**
* Initialise a language in this object. Rebuild the cache if necessary.
+ * @param $code
*/
protected function initLanguage( $code ) {
if ( isset( $this->initialisedLangs[$code] ) ) {
return;
}
+
$this->initialisedLangs[$code] = true;
# If the code is of the wrong form for a Messages*.php file, do a shallow fallback
/**
* Create a fallback from one language to another, without creating a
* complete persistent cache.
+ * @param $primaryCode
+ * @param $fallbackCode
*/
public function initShallowFallback( $primaryCode, $fallbackCode ) {
$this->data[$primaryCode] =& $this->data[$fallbackCode];
/**
* Read a PHP file containing localisation data.
+ * @param $_fileName
+ * @param $_fileType
+ * @return array
*/
protected function readPHPFile( $_fileName, $_fileType ) {
// Disable APC caching
} else {
throw new MWException( __METHOD__.": Invalid file type: $_fileType" );
}
+
return $data;
}
/**
* Merge two localisation values, a primary and a fallback, overwriting the
* primary value in place.
+ * @param $key
+ * @param $value
+ * @param $fallbackValue
*/
protected function mergeItem( $key, &$value, $fallbackValue ) {
if ( !is_null( $value ) ) {
if ( !empty( $value['inherit'] ) ) {
$value = array_merge( $fallbackValue, $value );
}
+
if ( isset( $value['inherit'] ) ) {
unset( $value['inherit'] );
}
}
}
+ /**
+ * @param $value
+ * @param $fallbackValue
+ */
protected function mergeMagicWords( &$value, $fallbackValue ) {
foreach ( $fallbackValue as $magicName => $fallbackInfo ) {
if ( !isset( $value[$magicName] ) ) {
*
* Returns true if any data from the extension array was used, false
* otherwise.
+ * @param $codeSequence
+ * @param $key
+ * @param $value
+ * @param $fallbackValue
+ * @return bool
*/
protected function mergeExtensionItem( $codeSequence, $key, &$value, $fallbackValue ) {
$used = false;
$used = true;
}
}
+
return $used;
}
/**
* Load localisation data for a given language for both core and extensions
* and save it to the persistent cache store and the process cache
+ * @param $code
*/
public function recache( $code ) {
global $wgExtensionMessagesFiles, $wgExtensionAliasesFiles;
foreach ( $data as $key => $value ) {
$this->mergeItem( $key, $coreData[$key], $value );
}
+
}
# Fill in the fallback if it's not there already
} else {
$coreData['fallbackSequence'] = array_map( 'trim', explode( ',', $coreData['fallback'] ) );
$len = count( $coreData['fallbackSequence'] );
+
# Ensure that the sequence ends at en
if ( $coreData['fallbackSequence'][$len - 1] !== 'en' ) {
$coreData['fallbackSequence'][] = 'en';
}
# Load the fallback localisation item by item and merge it
- foreach ( $coreData['fallbackSequence'] as $fallback ) {
- $deps = array_merge( $deps, $this->getItem( $fallback, 'deps' ) );
+ foreach ( $coreData['fallbackSequence'] as $fbCode ) {
+ # Load the secondary localisation from the source file to
+ # avoid infinite cycles on cyclic fallbacks
+ $fbFilename = Language::getMessagesFileName( $fbCode );
+
+ if ( !file_exists( $fbFilename ) ) {
+ continue;
+ }
+
+ $deps[] = new FileDependency( $fbFilename );
+ $fbData = $this->readPHPFile( $fbFilename, 'core' );
+
foreach ( self::$allKeys as $key ) {
+ if ( !isset( $fbData[$key] ) ) {
+ continue;
+ }
+
if ( is_null( $coreData[$key] ) || $this->isMergeableKey( $key ) ) {
- $fallbackValue = $this->getItem( $fallback, $key );
- $this->mergeItem( $key, $coreData[$key], $fallbackValue );
+ $this->mergeItem( $key, $coreData[$key], $fbData[$key] );
}
}
}
-
}
+
$codeSequence = array_merge( array( $code ), $coreData['fallbackSequence'] );
# Load the extension localisations
foreach ( $wgExtensionMessagesFiles as $fileName ) {
$data = $this->readPHPFile( $fileName, 'extension' );
$used = false;
+
foreach ( $data as $key => $item ) {
if( $this->mergeExtensionItem( $codeSequence, $key, $allData[$key], $item ) ) {
$used = true;
}
}
+
if ( $used ) {
$deps[] = new FileDependency( $fileName );
}
# Load deprecated $wgExtensionAliasesFiles
foreach ( $wgExtensionAliasesFiles as $fileName ) {
$data = $this->readPHPFile( $fileName, 'aliases' );
+
if ( !isset( $data['aliases'] ) ) {
continue;
}
+
$used = $this->mergeExtensionItem( $codeSequence, 'specialPageAliases',
$allData['specialPageAliases'], $data['aliases'] );
+
if ( $used ) {
$deps[] = new FileDependency( $fileName );
}
# Run hooks
wfRunHooks( 'LocalisationCacheRecache', array( $this, $code, &$allData ) );
+ if ( is_null( $allData['namespaceNames'] ) ) {
+ throw new MWException( __METHOD__.': Localisation data failed sanity check! ' .
+ 'Check that your languages/messages/MessagesEn.php file is intact.' );
+ }
+
# Set the preload key
$allData['preload'] = $this->buildPreload( $allData );
*
* The preload item will be loaded automatically, improving performance
* for the commonly-requested items it contains.
+ * @param $data
+ * @return array
*/
protected function buildPreload( $data ) {
$preload = array( 'messages' => array() );
foreach ( self::$preloadedKeys as $key ) {
$preload[$key] = $data[$key];
}
+
foreach ( $data['preloadedMessages'] as $subkey ) {
if ( isset( $data['messages'][$subkey] ) ) {
$subitem = $data['messages'][$subkey];
}
$preload['messages'][$subkey] = $subitem;
}
+
return $preload;
}
/**
* Unload the data for a given language from the object cache.
* Reduces memory usage.
+ * @param $code
*/
public function unload( $code ) {
unset( $this->data[$code] );
unset( $this->loadedItems[$code] );
unset( $this->loadedSubitems[$code] );
unset( $this->initialisedLangs[$code] );
+
foreach ( $this->shallowFallbacks as $shallowCode => $fbCode ) {
if ( $fbCode === $code ) {
$this->unload( $shallowCode );
/**
* Set a key to a given value. startWrite() must be called before this
* is called, and finishWrite() must be called afterwards.
+ * @param $key
+ * @param $value
*/
function set( $key, $value );
+}
+
+/**
+ * LCStore implementation which uses PHP accelerator to store data.
+ * This will work if one of XCache, WinCache or APC cacher is configured.
+ * (See ObjectCache.php)
+ */
+class LCStore_Accel implements LCStore {
+ var $currentLang;
+ var $keys;
+
+ public function __construct() {
+ $this->cache = wfGetCache( CACHE_ACCEL );
+ }
+ public function get( $code, $key ) {
+ $k = wfMemcKey( 'l10n', $code, 'k', $key );
+ $r = $this->cache->get( $k );
+ return $r === false ? null : $r;
+ }
+
+ public function startWrite( $code ) {
+ $k = wfMemcKey( 'l10n', $code, 'l' );
+ $keys = $this->cache->get( $k );
+ if ( $keys ) {
+ foreach ( $keys as $k ) {
+ $this->cache->delete( $k );
+ }
+ }
+ $this->currentLang = $code;
+ $this->keys = array();
+ }
+
+ public function finishWrite() {
+ if ( $this->currentLang ) {
+ $k = wfMemcKey( 'l10n', $this->currentLang, 'l' );
+ $this->cache->set( $k, array_keys( $this->keys ) );
+ }
+ $this->currentLang = null;
+ $this->keys = array();
+ }
+
+ public function set( $key, $value ) {
+ if ( $this->currentLang ) {
+ $k = wfMemcKey( 'l10n', $this->currentLang, 'k', $key );
+ $this->keys[$k] = true;
+ $this->cache->set( $k, $value );
+ }
+ }
}
/**
class LCStore_DB implements LCStore {
var $currentLang;
var $writesDone = false;
- var $dbw, $batch;
+
+ /**
+ * @var DatabaseBase
+ */
+ var $dbw;
+ var $batch;
var $readOnly = false;
public function get( $code, $key ) {
if ( $this->readOnly ) {
return;
}
+
if ( !$code ) {
throw new MWException( __METHOD__.": Invalid language \"$code\"" );
}
+
$this->dbw = wfGetDB( DB_MASTER );
try {
$this->dbw->begin();
throw $e;
}
}
+
$this->currentLang = $code;
$this->batch = array();
}
if ( $this->readOnly ) {
return;
}
+
if ( $this->batch ) {
$this->dbw->insert( 'l10n_cache', $this->batch, __METHOD__ );
}
+
$this->dbw->commit();
$this->currentLang = null;
$this->dbw = null;
if ( $this->readOnly ) {
return;
}
+
if ( is_null( $this->currentLang ) ) {
throw new MWException( __CLASS__.': must call startWrite() before calling set()' );
}
+
$this->batch[] = array(
'lc_lang' => $this->currentLang,
'lc_key' => $key,
'lc_value' => serialize( $value ) );
+
if ( count( $this->batch ) >= 100 ) {
$this->dbw->insert( 'l10n_cache', $this->batch, __METHOD__ );
$this->batch = array();
function __construct( $conf = array() ) {
global $wgCacheDirectory;
+
if ( isset( $conf['directory'] ) ) {
$this->directory = $conf['directory'];
} else {
public function get( $code, $key ) {
if ( !isset( $this->readers[$code] ) ) {
$fileName = $this->getFileName( $code );
+
if ( !file_exists( $fileName ) ) {
$this->readers[$code] = false;
} else {
$this->readers[$code] = CdbReader::open( $fileName );
}
}
+
if ( !$this->readers[$code] ) {
return null;
} else {
$value = $this->readers[$code]->get( $key );
+
if ( $value === false ) {
return null;
}
"directory \"{$this->directory}\"" );
}
}
+
// Close reader to stop permission errors on write
if( !empty($this->readers[$code]) ) {
$this->readers[$code]->close();
}
+
$this->writer = CdbWriter::open( $this->getFileName( $code ) );
$this->currentLang = $code;
}
*/
var $maxLoadedLangs = 10;
+ /**
+ * @param $fileName
+ * @param $fileType
+ * @return array|mixed
+ */
protected function readPHPFile( $fileName, $fileType ) {
$serialize = $fileType === 'core';
if ( !isset( $this->fileCache[$fileName][$fileType] ) ) {
$data = parent::readPHPFile( $fileName, $fileType );
+
if ( $serialize ) {
$encData = serialize( $data );
} else {
$encData = $data;
}
+
$this->fileCache[$fileName][$fileType] = $encData;
+
return $data;
} elseif ( $serialize ) {
return unserialize( $this->fileCache[$fileName][$fileType] );
}
}
+ /**
+ * @param $code
+ * @param $key
+ * @return mixed
+ */
public function getItem( $code, $key ) {
unset( $this->mruLangs[$code] );
$this->mruLangs[$code] = true;
return parent::getItem( $code, $key );
}
+ /**
+ * @param $code
+ * @param $key
+ * @param $subkey
+ * @return
+ */
public function getSubitem( $code, $key, $subkey ) {
unset( $this->mruLangs[$code] );
$this->mruLangs[$code] = true;
return parent::getSubitem( $code, $key, $subkey );
}
+ /**
+ * @param $code
+ */
public function recache( $code ) {
parent::recache( $code );
unset( $this->mruLangs[$code] );
$this->trimCache();
}
+ /**
+ * @param $code
+ */
public function unload( $code ) {
unset( $this->mruLangs[$code] );
parent::unload( $code );
$this->unload( $code );
}
}
-}
+}
\ No newline at end of file