public function deleteExpired()
{
// Create a Scan iterator for finding expired session items
$scan = $this->client->getPaginator('Scan', ['TableName' => $this->config['table_name'], 'AttributesToGet' => [$this->config['hash_key']], 'ScanFilter' => ['expires' => ['ComparisonOperator' => 'LT', 'AttributeValueList' => [['N' => (string) time()]]], 'lock' => ['ComparisonOperator' => 'NULL']]]);
// Create a WriteRequestBatch for deleting the expired items
$batch = new WriteRequestBatch($this->client, $this->config['batch_config']);
// Perform Scan and BatchWriteItem (delete) operations as needed
foreach ($scan->search('Items') as $item) {
$batch->delete([$this->config['hash_key'] => $item[$this->config['hash_key']]], $this->config['table_name']);
}
// Delete any remaining items that were not auto-flushed
$batch->flush();
}
/**
* Removes finished ( done or error ) jobs from a table.
*
* @param int $ttl The time in - in milliseconds - to leave a finished job before removing it.
* @return int
*/
public function cleanupTable($ttl = 0)
{
// Create a Scan iterator for finding finished jobs
$scan = $this->client->getPaginator('Scan', ['TableName' => $this->config['table_name'], 'ProjectionExpression' => 'id, #state', 'ExpressionAttributeNames' => ['#state' => 'state', '#updated' => 'updated'], 'ExpressionAttributeValues' => [':done' => ['S' => AbstractJob::STATE_DONE], ':error' => ['S' => AbstractJob::STATE_ERROR], ':notUpdatedSince' => ['N' => (string) (round(microtime(true) * 1000) - $ttl)]], 'FilterExpression' => '#state IN (:done, :error) AND #updated < :notUpdatedSince']);
//---
// Create a WriteRequestBatch for deleting the expired jobs
$batch = new WriteRequestBatch($this->client, ['error' => function ($v) {
if ($v instanceof Exception) {
throw $v;
}
}]);
//---
$deletedJobs = 0;
foreach ($scan->search('Items') as $item) {
$batch->delete(['id' => $item['id']], $this->config['table_name']);
$deletedJobs++;
}
// Delete any remaining jobs that were not auto-flushed
$batch->flush();
//---
return $deletedJobs;
}
/**
* {@inheritDoc}
*/
public function batchWriteItemMultipleAndRetry(AwsDynamoDbRequest $request)
{
$batch = new WriteRequestBatch($this->client);
/* Iterate every table. */
foreach ($request->getRequestItems() as $table => $items) {
/* Iterates every item. */
/** @var AwsDynamoDbRequest $item */
foreach ($items as $item) {
empty($item->getPutRequest()->toArray()) ? $batch->delete($item->getDeleteRequest()->getKey()->toArray(), $table) : $batch->put($item->getPutRequest()->getItem()->toArray(), $table);
}
}
try {
$batch->flush(true);
} catch (AwsException $e) {
/* Return an error response. */
return new AwsDynamoDbResponse(null, $e);
}
return new AwsDynamoDbResponse(null, null);
}
