/**
* Information about index
*/
function getIndexInfo()
{
require_once JPATH_SITE . DS . 'administrator' . DS . 'components' . DS . 'com_jucene' . DS . 'helpers' . DS . 'jucene.php';
$index = JuceneHelper::getIndex();
$info['infodocs'] = $index->count();
$dir_info = $this->getDirectorySize(JuceneHelper::getIndexPath());
$info['folderSize'] = $dir_info['size'];
return $info;
}
/**
*
* @param $article
* @param $isNew
*/
function onIndexContent($article, $isNew = false)
{
//FIXME move the content type tests and following transformations to the helper
global $mainframe;
$pk = $article->id;
if (!$isNew) {
JuceneHelper::removeFromIndex('pk:' . $pk);
}
$index = JuceneHelper::getIndex();
$xml_field = substr($article->fulltext, 0, 5) != '<?xml' ? $article->introtext : $article->fulltext;
if (substr($xml_field, 0, 5) == '<?xml') {
$dom = new DOMDocument();
$pmml = true;
$xslt = new DOMDocument();
$error = false;
//load xslt stylesheet
if (!@$xslt->load(JPATH_SITE . DS . 'administrator' . DS . 'components' . DS . 'com_jucene' . DS . 'xslt/jucene.xsl')) {
$error = true;
$this->raiseMessage("XSLTLOADERROR", 'error');
}
$proc = new XSLTProcessor();
if (!$proc->importStylesheet($xslt)) {
$error = true;
$this->raiseMessage("XSLTIMPORTERROR", 'error');
}
unset($artcile->fulltext);
unset($record->introtext);
if ($dom->loadXML($xml_field) && !$error && $pmml) {
//simplify the document - prepare it for the indexation process
$xslOutput = $proc->transformToXml($dom);
//create new DOM document to preserve output and transform the XML to the indexable one
$transXml = new DOMDocument();
$transXml->preserveWhitespace = false;
@$transXml->loadXML($xslOutput);
//unset unneccessary variables
unset($xslOutput);
unset($dom);
unset($xslt);
//index every assoc rule as document with same credentials
if (!$error) {
$rules = $transXml->getElementsByTagName("AssociationRule");
$rulesCount = $rules->length;
if ($rulesCount == 0) {
$error = true;
$this->raiseMessage('XMLDOCUMENTNORULES', 'error');
}
$rule_doc_position = 0;
foreach ($rules as $rule) {
$additional['rating'] = 0;
$additional['position'] = $rule_doc_position;
JPluginHelper::importPlugin('content');
$dispatcher =& JDispatcher::getInstance();
$results = $dispatcher->trigger('onIndexPmml', array($rule, $additional));
$rule_doc_position++;
}
}
}
} else {
$zendDoc = Zend_Search_Lucene_Document_Html::loadHTML($article->fulltext, false, UTF - 8);
$index->addDocument($zendDoc);
}
}
/**
* Function to update rating of the association rule by the Sewebar domain experts. It should be
* in the format +/- 1.
* @param $docId reference of the document id - e.g. db primary key id, pk field of the lucene record
* @param $rating value of the rating +/- 1
* @param $rulePosition position in the document
*/
function updateRating($docId, $userRating, $rulePosition)
{
$index = JuceneHelper::getIndex();
$results = $index->find("pk:'.{$docId}.' AND position:" . $rulePosition);
if (count($results) > 0) {
foreach ($results as $result) {
$del = $index->delete($result->id);
}
$ruleRating = $result->rating;
if ($userRating == -1 || $userRating == 1) {
$newRating = $ruleRating + $userRating;
$zendDoc = Zend_Search_Lucene_Document_Pmml::addPmml($result, array(), false);
$index->addDocument($zendDoc);
}
}
}
/**
*
*/
function getFields()
{
if (empty($this->_fields)) {
$index = JuceneHelper::getIndex();
$results = $index->getFieldNames();
$this->_fields = $results;
}
return $this->_fields;
}
/**
* This method is used to generate search results field that are passed to the view
* for displaying to the end-user
* @param $query
* @param $ordering
*/
function plgSearchJucene($query, $ordering = '')
{
//import helpers
require_once JPATH_SITE . DS . 'administrator' . DS . 'components' . DS . 'com_jucene' . DS . 'helpers' . DS . 'jucene.php';
require_once JPATH_SITE . DS . 'components' . DS . 'com_content' . DS . 'helpers' . DS . 'route.php';
//set up some variables
global $mainframe;
$user =& JFactory::getUser();
$time = time();
try {
//retrieve the Lucene Index if exists
$index =& JuceneHelper::getIndex();
} catch (Exception $e) {
JFactory::getApplication()->enqueueMessage(JText::_($e->getMessage()), 'error');
}
//It is time to define the parameters! First get the right plugin; 'search' (the group), 'nameofplugin'.
$plugin =& JPluginHelper::getPlugin('search', 'jucene');
//load the parameters of the plugin
$pluginParams = new JParameter($plugin->params);
$limit = $pluginParams->def('search_limit', 0);
//TODO log search query
//Set query
try {
$query = JuceneHelper::prepareNumber($query);
} catch (Exception $e) {
}
Zend_Search_Lucene_Search_QueryParser::setDefaultEncoding('UTF-8');
try {
Zend_Search_Lucene_Search_QueryParser::parse($query);
} catch (Exception $e) {
JFactory::getApplication()->enqueueMessage(JText::_($e->getMessage()), 'error');
}
$query = str_replace('-', ':', $query);
if (JDEBUG) {
JFactory::getApplication()->enqueueMessage(JText::_($query, 'error'));
}
//query time
$_SESSION['jucene_timer'] = time();
try {
$results = $index->find($query, 'score', SORT_NUMERIC, SORT_DESC, 'rating', SORT_NUMERIC, SORT_DESC);
} catch (Exception $e) {
JFactory::getApplication()->enqueueMessage(JText::_($e->getMessage()), 'error');
}
//TODO find better solution to create links, perhaps to create router like it the com_content
// Create a user access object for the current user
$access = new stdClass();
$access->canEdit = $user->authorize('com_content', 'edit', 'content', 'all');
$access->canEditOwn = $user->authorize('com_content', 'edit', 'content', 'own');
$access->canPublish = $user->authorize('com_content', 'publish', 'content', 'all');
// Check to see if the user has access to view the full article
$aid = $user->get('aid');
//pk is the value of the primary key of the record, because we cannot call id - lucene would return id WITHIN index.. not database primary key
foreach ($results as $key => $val) {
if ($val->access <= $aid) {
$results[$key]->href = JRoute::_(ContentHelperRoute::getArticleRoute($val->alias, $val->catid, $val->sectionid));
//ContentHelperRoute::getArticleRoute ( $val->pk );
} else {
$params =& JComponentHelper::getParams('com_jucene');
$leave_out = $params->get('leave_out', 1);
// Create login URL or leave out private content
if ($leave_out == 1) {
unset($results[$key]);
} else {
$uri = JFactory::getURI();
$return = $uri->toString();
$url = 'index.php?option=com_user&view=login';
$url .= '&return=' . base64_encode($return);
$results[$key]->href = $url;
}
}
$results[$key]->count = '';
$results[$key]->time = $time;
}
//Return the search results in an array
return $results;
}
/**
*
* @param $conditions
* array of conditions in form of fied => value
*/
function searchKbi(DOMDocument $ar_query, $specific_index = NULL)
{
if (!JuceneHelper::stringContains($ar_query, "<?xml")) {
return "";
}
$xslt = new DOMDocument();
if (!@$xslt->load(JPATH_SITE . DS . 'administrator' . DS . 'components' . DS . 'com_jucene' . DS . 'xslt/ARQuery.xsl')) {
$error = true;
$this->raiseMessage("XSLTLOADERROR", 'error');
}
$xslt_proc = new XSLTProcessor();
if (!$xslt_proc->importStylesheet($xslt)) {
$error = true;
$this->raiseMessage("XSLTIMPORTERROR", 'error');
}
$ar_query_dom = new DOMDocument();
if ($ar_query_dom->loadXML($ar_query)) {
$query = $xslt_proc->transformToXml($ar_query);
}
$index = is_null($specific_index) ? JuceneHelper::getIndex() : JuceneHelper::getIndex($specific_index);
try {
$results = $index->find($query);
} catch (Exception $e) {
echo $e->getMessage();
}
if (count($results) > 0) {
//TODO make the results XML
$results_xml = new DOMDocument();
$results_xml->formatOutput = true;
$search_result = $results_xml->appendChild('SearchResult');
$hits = $search_result->appendChild('Hits');
foreach ($results as $field_name => $value) {
$hit = $hits->appendChild('Hit');
$hitValue = $results_xml->createElement($field_name, $value);
$hit->appendChild($hitValue);
}
$xml = $results_xml->saveXML();
}
return $xml;
}
/**
*
* @param $doc_id
*/
function removeFromIndexById($doc_id)
{
if (!is_numeric()) {
return false;
}
$message = "";
$index = JuceneHelper::getIndex();
$hits = $index->find("pk:" . $doc_id);
if (count($hits > 0)) {
foreach ($hits as $hit) {
try {
$index->delete($hit->id);
} catch (Exception $e) {
JFactory::getApplication()->enqueueMessage($e->getMessage());
}
$message .= "Deleted " . $hit->id;
//$this->raiseMessage("removed: ".$hit->id,'error');
}
}
JFactory::getApplication()->enqueueMessage($message);
}
