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<?php
namespace SMW\Maintenance;
use Onoi\MessageReporter\MessageReporter;
use Onoi\MessageReporter\MessageReporterFactory;
use SMW\SQLStore\PropertyStatisticsStore;
use SMW\Store;
/**
* Simple class for rebuilding property usage statistics.
*
* @license GNU GPL v2+
* @since 1.9
*
* @author Jeroen De Dauw < jeroendedauw@gmail.com >
* @author Nischay Nahata
*/
class PropertyStatisticsRebuilder {
/**
* @var Store
*/
private $store = null;
/**
* @var PropertyStatisticsStore
*/
private $propertyStatisticsStore;
/**
* @var MessageReporter
*/
private $messageReporter;
/**
* @since 1.9
*
* @param Store $store
* @param PropertyStatisticsStore $propertyStatisticsStore
*/
public function __construct( Store $store, PropertyStatisticsStore $propertyStatisticsStore ) {
$this->store = $store;
$this->propertyStatisticsStore = $propertyStatisticsStore;
$this->messageReporter = MessageReporterFactory::getInstance()->newNullMessageReporter();
}
/**
* @since 2.2
*
* @param MessageReporter $messageReporter
*/
public function setMessageReporter( MessageReporter $messageReporter ) {
$this->messageReporter = $messageReporter;
}
/**
* @since 1.9
*/
public function rebuild() {
$this->reportMessage( "\nRebulding property statistics (this may take a while) ..." );
$table = $this->propertyStatisticsStore->getStatisticsTable();
$this->reportMessage( "\n ... deleting `$table` content ..." );
$this->propertyStatisticsStore->deleteAll();
$connection = $this->store->getConnection( 'mw.db' );
$res = $connection->select(
\SMWSql3SmwIds::TABLE_NAME,
[ 'smw_id', 'smw_title' ],
[
'smw_namespace' => SMW_NS_PROPERTY,
'smw_subobject' => ''
],
__METHOD__
);
$propCount = $res->numRows();
$this->reportMessage( "\n ... selecting $propCount properties ...\n" );
$i = 0;
foreach ( $res as $row ) {
$i++;
$this->reportMessage(
"\r". sprintf( "%-47s%s", " ... updating", sprintf( "%4.0f%% (%s/%s)", round( ( $i / $propCount ) * 100 ), $i, $propCount ) )
);
$this->propertyStatisticsStore->insertUsageCount(
(int)$row->smw_id,
$this->getCountFormRow( $row )
);
}
$connection->freeResult( $res );
$this->reportMessage( "\n ... done.\n" );
}
private function getCountFormRow( $row ) {
$usageCount = 0;
$nullCount = 0;
foreach ( $this->store->getPropertyTables() as $propertyTable ) {
if ( $propertyTable->isFixedPropertyTable() && $propertyTable->getFixedProperty() !== $row->smw_title ) {
// This table cannot store values for this property
continue;
}
list( $uCount, $nCount ) = $this->getPropertyTableRowCount(
$propertyTable,
$row->smw_id
);
$usageCount += $uCount;
$nullCount += $nCount;
}
return [ $usageCount, $nullCount ];
}
private function getPropertyTableRowCount( $propertyTable, $pid ) {
$condition = [];
$connection = $this->store->getConnection( 'mw.db' );
if ( !$propertyTable->isFixedPropertyTable() ) {
$condition = [ 'p_id' => $pid ];
}
$tableFields = $this->store->getDataItemHandlerForDIType( $propertyTable->getDiType() )->getTableFields();
$tableName = $propertyTable->getName();
$usageCount = 0;
$nullCount = 0;
// Select all (incl. NULL since for example blob table can have a null
// for when only the hash field is used, substract NULL in a second step)
$row = $connection->selectRow(
$tableName,
'Count(*) as count',
$condition,
__METHOD__
);
if ( $row !== false ) {
$usageCount = $row->count;
}
// Select only those that match NULL for all fields
foreach ( $tableFields as $field => $type ) {
$condition[] = "$field IS NULL";
}
$nRow = $connection->selectRow(
$tableName,
'Count(*) as count',
$condition,
__METHOD__
);
if ( $nRow !== false ) {
$nullCount = $nRow->count;
}
if ( $usageCount > 0 ) {
$usageCount = $usageCount - $nullCount;
}
return [ $usageCount, $nullCount ];
}
private function progress( $propCount, $i ) {
if ( $i % 60 === 0 ) {
if ( $i < 1 ) {
return "\n";
}
return ' ' . round( ( $i / $propCount ) * 100 ) . ' %' . "\n";
}
return '.';
}
protected function reportMessage( $message ) {
$this->messageReporter->reportMessage( $message );
}
}
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