JavaXMLRPCLuceneIndexer.inc.php
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<?
require_once('indexing/lib/XmlRpcLucene.inc.php');
class JavaXMLRPCLuceneIndexer extends Indexer
{
/**
* @var XmlRpcLucene
*/
private $lucene;
/**
* The constructor for PHP Lucene
*
* @param boolean $create Optional. If true, the lucene index will be recreated.
*/
public function __construct()
{
parent::__construct();
$config =& KTConfig::getSingleton();
$javaServerUrl = $config->get('indexer/JavaLuceneURL', 'http://localhost:8875');
$this->lucene = new XmlRpcLucene($javaServerUrl);
}
/**
* Creates an index to be used.
*
*/
public static function createIndex()
{
// do nothing. The java lucene indexer will create the indexes if required
}
/**
* Indexes a document based on a text file.
*
* @param int $docid
* @param string $textfile
* @return boolean
*/
protected function indexDocument($docid, $textfile, $title, $version)
{
try
{
return $this->lucene->addDocument($docid, $textfile, '', $title, $version);
}
catch(Exception $e)
{
return false;
}
}
/**
* Indexes the content and discussions on a document.
*
* @param int $docid
* @param string $textfile
* @return boolean
*/
protected function indexDocumentAndDiscussion($docid, $textfile, $title, $version)
{
try
{
$discussion = Indexer::getDiscussionText($docid);
return $this->lucene->addDocument($docid, $textfile, $discussion, $title, $version);
}
catch(Exception $e)
{
return false;
}
}
/**
* Indexes a discussion on a document..
*
* @param int $docid
* @return boolean
*/
protected function indexDiscussion($docid)
{
try
{
$discussion = Indexer::getDiscussionText($docid);
return $this->lucene->updateDiscussion($docid, $discussion);
}
catch(Exception $e)
{
return false;
}
return true;
}
/**
* Optimise the lucene index.
* This can be called periodically to optimise performance and size of the lucene index.
*
*/
public function optimise()
{
$this->lucene->optimize();
}
/**
* Removes a document from the index.
*
* @param int $docid
* @return array containing (content, discussion, title)
*/
public function deleteDocument($docid)
{
return $this->lucene->deleteDocument($docid);
}
/**
* Enter description here...
*
* @param string $query
* @return array
*/
public function query($query)
{
$results = array();
$hits = $this->lucene->query($query);
if (is_array($hits))
{
foreach ($hits as $hit)
{
$document_id = $hit->DocumentID;
$content = $hit->Text;
$discussion = $hit->Title; //TODO: fix to be discussion. lucen server is not returning discussion text as well..
$title = $hit->Title;
$score = $hit->Rank;
// avoid adding duplicates. If it is in already, it has higher priority.
if (!array_key_exists($document_id, $results) || $score > $results[$document_id]->Score)
{
$results[$document_id] = new QueryResultItem($document_id, $score, $title, $content, $discussion);
}
}
}
else
{
$_SESSION['KTErrorMessage'][] = _kt('The XMLRPC Server did not respond correctly. Please notify the system administrator to investigate.');
}
return $results;
}
public function diagnose()
{
$config =& KTConfig::getSingleton();
$ooHost = $config->get('openoffice/host', 'localhost');
$ooPort = $config->get('openoffice/port', 8100);
$connection = @fsockopen($ooHost, $ooPort,$errno, $errstr, 2);
if (false === $connection)
{
return _kt('Cannot connect to openoffice host');
}
fclose($connection);
return null;
}
}
?>