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<?php |
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namespace SMW; |
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use Closure; |
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use DeferrableUpdate; |
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use DeferredUpdates; |
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use RuntimeException; |
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/** |
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* @see MWCallableUpdate |
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* |
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* @license GNU GPL v2+ |
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* @since 2.4 |
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*/ |
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class DeferredCallableUpdate implements DeferrableUpdate { |
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/** |
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* @var Closure|callable |
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*/ |
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private $callback; |
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/** |
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* @var boolean |
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*/ |
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private $enabledDeferredUpdate = true; |
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/** |
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* @var boolean |
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*/ |
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private $isPending = false; |
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/** |
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* @var string |
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*/ |
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private $origin = ''; |
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/** |
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* @var array |
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*/ |
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private static $pendingUpdates = array(); |
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/** |
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* @since 2.4 |
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* |
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* @param Closure $callback |
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* @throws RuntimeException |
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*/ |
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public function __construct( Closure $callback ) { |
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if ( !is_callable( $callback ) ) { |
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throw new RuntimeException( 'Expected a valid callback/closure!' ); |
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} |
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$this->callback = $callback; |
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} |
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/** |
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* @note Unit/Integration tests in MW 1.26- showed ambiguous behaviour when |
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* run in deferred mode because not all MW operations were supporting late |
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* execution. |
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* |
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* @since 2.4 |
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*/ |
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232 |
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public function enabledDeferredUpdate( $enabledDeferredUpdate = true ) { |
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$this->enabledDeferredUpdate = $enabledDeferredUpdate; |
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} |
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/** |
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* @note If wgCommandLineMode = true (e.g. MW is in CLI mode) then |
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* DeferredUpdates::addUpdate pushes updates directly into execution mode |
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* which may not be desirable for all update processes therefore hold on to it |
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* by using an internal waitableUpdate list and release them at convenience. |
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* |
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* @since 2.4 |
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*/ |
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public function markAsPending( $isPending = false ) { |
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$this->isPending = $isPending; |
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} |
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/** |
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* @since 2.5 |
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* |
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* @param string $origin |
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*/ |
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public function setOrigin( $origin ) { |
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$this->origin = $origin; |
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} |
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/** |
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* @see DeferrableCallback::getOrigin |
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* |
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* @since 2.5 |
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* |
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* @return string |
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*/ |
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public function getOrigin() { |
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return $this->origin; |
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} |
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/** |
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* @since 2.4 |
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*/ |
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public static function releasePendingUpdates() { |
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foreach ( self::$pendingUpdates as $update ) { |
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DeferredUpdates::addUpdate( $update ); |
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} |
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self::$pendingUpdates = array(); |
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} |
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/** |
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* @see DeferrableUpdate::doUpdate |
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* |
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* @since 2.4 |
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*/ |
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public function doUpdate() { |
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wfDebugLog( 'smw', $this->origin . ' doUpdate' ); |
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call_user_func( $this->callback ); |
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} |
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/** |
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* @since 2.4 |
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* @deprecated since 2.5, use DeferredCallableUpdate::pushUpdate |
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*/ |
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public function pushToDeferredUpdateList() { |
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$this->pushUpdate(); |
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} |
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/** |
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* @since 2.5 |
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*/ |
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234 |
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public function pushUpdate() { |
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if ( $this->isPending && $this->enabledDeferredUpdate ) { |
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wfDebugLog( 'smw', $this->origin . ' (as pending DeferredCallableUpdate)' ); |
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return self::$pendingUpdates[] = $this; |
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} |
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if ( $this->enabledDeferredUpdate ) { |
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wfDebugLog( 'smw', $this->origin . ' (as DeferredCallableUpdate)' ); |
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return DeferredUpdates::addUpdate( $this ); |
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} |
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$this->doUpdate(); |
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} |
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} |
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SemanticMediaWiki /
SemanticMediaWiki
