silverstripe-fulltextsearch/code/search/processors/SearchUpdateCommitJobProcessor.php
2015-11-21 19:19:20 +13:00

267 lines
7.6 KiB
PHP

<?php
if (!interface_exists('QueuedJob')) {
return;
}
class SearchUpdateCommitJobProcessor implements QueuedJob
{
/**
* The QueuedJob queue to use when processing commits
*
* @config
* @var int
*/
private static $commit_queue = 2; // QueuedJob::QUEUED;
/**
* List of indexes to commit
*
* @var array
*/
protected $indexes = array();
/**
* True if this job is skipped to be be re-scheduled in the future
*
* @var boolean
*/
protected $skipped = false;
/**
* List of completed indexes
*
* @var array
*/
protected $completed = array();
/**
* List of messages
*
* @var array
*/
protected $messages = array();
/**
* List of dirty indexes to be committed
*
* @var array
*/
public static $dirty_indexes = true;
/**
* If solrindex::commit has already been performed, but additional commits are necessary,
* how long do we wait before attempting to touch the index again?
*
* {@see http://stackoverflow.com/questions/7512945/how-to-fix-exceeded-limit-of-maxwarmingsearchers}
*
* @var int
* @config
*/
private static $cooldown = 300;
/**
* True if any commits have been executed this request. If so, any attempts to run subsequent commits
* should be delayed until next queuedjob to prevent solr reaching maxWarmingSearchers
*
* {@see http://stackoverflow.com/questions/7512945/how-to-fix-exceeded-limit-of-maxwarmingsearchers}
*
* @var boolean
*/
public static $has_run = false;
/**
* This method is invoked once indexes with dirty ids have been updapted and a commit is necessary
*
* @param boolean $dirty Marks all indexes as dirty by default. Set to false if there are known comitted and
* clean indexes
* @param string $startAfter Start date
* @return int The ID of the next queuedjob to run. This could be a new one or an existing one.
*/
public static function queue($dirty = true, $startAfter = null)
{
$commit = Injector::inst()->create(__CLASS__);
$id = singleton('QueuedJobService')->queueJob($commit, $startAfter);
if ($dirty) {
$indexes = FullTextSearch::get_indexes();
static::$dirty_indexes = array_keys($indexes);
}
return $id;
}
public function getJobType()
{
return Config::inst()->get(__CLASS__, 'commit_queue');
}
public function getSignature()
{
// There is only ever one commit job on the queue so the signature is consistent
// See QueuedJobService::queueJob() for the code that prevents duplication
return __CLASS__;
}
public function getTitle()
{
return "FullTextSearch Commit Job";
}
/**
* Get the list of index names we should process
*
* @return array
*/
public function getAllIndexes()
{
if (empty($this->indexes)) {
$indexes = FullTextSearch::get_indexes();
$this->indexes = array_keys($indexes);
}
return $this->indexes;
}
public function jobFinished()
{
// If we've indexed exactly as many as we would like, we are done
return $this->skipped
|| (count($this->getAllIndexes()) <= count($this->completed));
}
public function prepareForRestart()
{
// NOOP
}
public function afterComplete()
{
// NOOP
}
/**
* Abort this job, potentially rescheduling a replacement if there is still work to do
*/
protected function discardJob()
{
$this->skipped = true;
// If we do not have dirty records, then assume that these dirty records were committed
// already this request (but probably another job), so we don't need to commit anything else.
// This could occur if we completed multiple searchupdate jobs in a prior request, and
// we only need one commit job to commit all of them in the current request.
if (empty(static::$dirty_indexes)) {
$this->addMessage("Indexing already completed this request: Discarding this job");
return;
}
// If any commit has run, but some (or all) indexes are un-comitted, we must re-schedule this task.
// This could occur if we completed a searchupdate job in a prior request, as well as in
// the current request
$cooldown = Config::inst()->get(__CLASS__, 'cooldown');
$now = new DateTime(SS_Datetime::now()->getValue());
$now->add(new DateInterval('PT'.$cooldown.'S'));
$runat = $now->Format('Y-m-d H:i:s');
$this->addMessage("Indexing already run this request, but incomplete. Re-scheduling for {$runat}");
// Queue after the given cooldown
static::queue(false, $runat);
}
public function process()
{
// If we have already run an instance of SearchUpdateCommitJobProcessor this request, immediately
// quit this job to prevent hitting warming search limits in Solr
if (static::$has_run) {
$this->discardJob();
return true;
}
// To prevent other commit jobs from running this request
static::$has_run = true;
// Run all incompleted indexes
$indexNames = $this->getAllIndexes();
foreach ($indexNames as $name) {
$index = singleton($name);
$this->commitIndex($index);
}
$this->addMessage("All indexes committed");
return true;
}
/**
* Commits a specific index
*
* @param SolrIndex $index
* @throws Exception
*/
protected function commitIndex($index)
{
// Skip index if this is already complete
$name = get_class($index);
if (in_array($name, $this->completed)) {
$this->addMessage("Skipping already comitted index {$name}");
return;
}
// Bypass SolrIndex::commit exception handling so that queuedjobs can handle the error
$this->addMessage("Committing index {$name}");
$index->getService()->commit(false, false, false);
$this->addMessage("Committing index {$name} was successful");
// If this index is currently marked as dirty, it's now clean
if (in_array($name, static::$dirty_indexes)) {
static::$dirty_indexes = array_diff(static::$dirty_indexes, array($name));
}
// Mark complete
$this->completed[] = $name;
}
public function setup()
{
// NOOP
}
public function getJobData()
{
$data = new stdClass();
$data->totalSteps = count($this->getAllIndexes());
$data->currentStep = count($this->completed);
$data->isComplete = $this->jobFinished();
$data->messages = $this->messages;
$data->jobData = new stdClass();
$data->jobData->skipped = $this->skipped;
$data->jobData->completed = $this->completed;
$data->jobData->indexes = $this->getAllIndexes();
return $data;
}
public function setJobData($totalSteps, $currentStep, $isComplete, $jobData, $messages)
{
$this->isComplete = $isComplete;
$this->messages = $messages;
$this->skipped = $jobData->skipped;
$this->completed = $jobData->completed;
$this->indexes = $jobData->indexes;
}
public function addMessage($message, $severity='INFO')
{
$severity = strtoupper($severity);
$this->messages[] = '[' . date('Y-m-d H:i:s') . "][$severity] $message";
}
public function getMessages()
{
return $this->messages;
}
}