public function tearDown()
{
if ($this->ch) {
$this->ch->exchange_delete($this->exchange_name);
$this->ch->close();
}
if ($this->conn) {
$this->conn->close();
}
}
private function waitForTask($timeout, $exchange, $queue, callable $completed = null, callable $timedout = null, callable $errored = null)
{
// Wait X seconds for the task to be finished
$message = $this->waitForMessage($queue, $timeout);
// No response from the worker (the task is not finished)
if (!$message) {
// We put in the queue that we timed out
$this->channel->basic_publish(new AMQPMessage('timeout'), $exchange);
// Read the first message coming out of the queue
$message = $this->waitForMessage($queue, 0.5);
if (!$message) {
// Shouldn't happen -> error while delivering messages?
return;
}
}
// If the first message of the queue is a "finished" message from the worker
if ($message->body == 'finished') {
if ($completed !== null) {
call_user_func($completed);
}
// Delete the temporary exchange
$this->channel->exchange_delete($exchange);
}
// If the first message of the queue is a "errored" message from the worker
if ($message->body == 'errored') {
if ($errored !== null) {
$e = new \RuntimeException("An error occured in the background task");
call_user_func($errored, $e);
}
// Delete the temporary exchange
$this->channel->exchange_delete($exchange);
}
// If the first message of the queue is our "timeout" message
if ($message->body == 'timeout') {
if ($timedout !== null) {
call_user_func($timedout);
}
// Do not delete the temp exchange: still used by the worker
}
// Delete the temporary queue
$this->channel->queue_delete($queue);
}
/**
* @param $name
*/
public function exchangeDelete($name)
{
$this->_channel->exchange_delete($name);
}
