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<?php
/**
* Cross Language Translation Search.
* @since 2015.08
*/
class CrossLanguageTranslationSearchQuery {
/** @var TTMServer */
protected $server;
/** @var array */
protected $params;
/** @var ResultSet */
protected $resultset;
/** @var int */
protected $total = 0;
protected $hl = array( '', '' );
public function __construct( array $params, SearchableTTMServer $server ) {
$this->params = $params;
$this->server = $server;
}
public function getDocuments() {
$documents = array();
$total = $start = 0;
$queryString = $this->params['query'];
$offset = $this->params['offset'];
$limit = $this->params['limit'];
$size = 1000;
$options = $this->params;
$options['limit'] = $size;
$options['language'] = $this->params['sourcelanguage'];
do {
$options['offset'] = $start;
$this->resultset = $this->server->search( $queryString, $options, $this->hl );
list( $results, $offsets ) = $this->extractMessages(
$this->resultset,
$offset,
$limit
);
$offset = $offsets['start'] + $offsets['left'] - $offsets['total'];
$limit = $limit - $offsets['left'];
$total = $total + $offsets['total'];
$documents = array_merge( $documents, $results );
$start = $start + $size;
} while (
$offsets['start'] + $offsets['left'] >= $offsets['total'] &&
$this->resultset->getTotalHits() > $start
);
$this->total = $total;
return $documents;
}
/*
* Extract messages from the resultset and build message definitions.
* Create a message collection from the definitions in the target language.
* Filter the message collection to get filtered messages.
* Slice messages according to limit and offset given.
*/
protected function extractMessages( $resultset, $offset, $limit ) {
$messages = $documents = $ret = array();
$language = $this->params['language'];
foreach ( $resultset->getResults() as $document ) {
$data = $document->getData();
if ( !$this->server->isLocalSuggestion( $data ) ) {
continue;
}
$title = Title::newFromText( $data['localid'] );
if ( !$title ) {
continue;
}
$handle = new MessageHandle( $title );
if ( !$handle->isValid() ) {
continue;
}
$key = $title->getNamespace() . ':' . $title->getDBkey();
$messages[$key] = $data['content'];
}
$definitions = new MessageDefinitions( $messages );
$collection = MessageCollection::newFromDefinitions( $definitions, $language );
$filter = $this->params['filter'];
if ( $filter === 'untranslated' ) {
$collection->filter( 'hastranslation', true );
} elseif ( in_array( $filter, $this->getAvailableFilters() ) ) {
$collection->filter( $filter, false );
}
$total = count( $collection );
$offset = $collection->slice( $offset, $limit );
$left = count( $collection );
$offsets = array(
'start' => $offset[2],
'left' => $left,
'total' => $total,
);
if ( $filter === 'translated' || $filter === 'fuzzy' ) {
$collection->loadTranslations();
}
foreach ( $collection->keys() as $mkey => $title ) {
$documents[$mkey]['content'] = $messages[$mkey];
if ( $filter === 'translated' || $filter === 'fuzzy' ) {
$documents[$mkey]['content'] = $collection[$mkey]->translation();
}
$handle = new MessageHandle( $title );
$documents[$mkey]['localid'] = $handle->getTitleForBase()->getPrefixedText();
$documents[$mkey]['language'] = $language;
$ret[] = $documents[$mkey];
}
return array( $ret, $offsets );
}
/**
* @return array
*/
public function getAvailableFilters() {
return array(
'translated',
'fuzzy',
'untranslated'
);
}
public function getTotalHits() {
return $this->total;
}
public function getResultSet() {
return $this->resultset;
}
}
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