/**
* @return
*/
public function launchStreams()
{
$logger = Logger::getInstance('stream_log_location');
if (!$this->php_path) {
$logger->logError("php path is not set: check Twitter Realtime plugin configuration", __METHOD__ . ',' . __LINE__);
return;
}
// get information from database about all streams. This data is indexed by email + instance id.
$stream_hash = $this->stream_proc_dao->getAllStreamProcesses();
// get all owners
$owners = $this->owner_dao->getAllOwners();
$count = 0;
// exec the stream processing script for each owner. This will fire up the
// stream consumption if the owner has a twitter instance.
foreach ($owners as $owner) {
if ($count == self::MAX_INSTANCES) {
break;
// only open user stream process for up to MAX_INSTANCES instances
}
// the last argument in the following causes only active instances to be retrieved.
$instances = $this->instance_dao->getByOwnerAndNetwork($owner, 'twitter', true, true);
foreach ($instances as $instance) {
$owner_email = $owner->email;
if (isset($owner_email)) {
$idx = $owner_email . "_" . $instance->id;
$start_new_proc = false;
// if a 'live' process for that user is already running, take no action
if (isset($stream_hash[$idx]) && $stream_hash[$idx]['email'] == $owner_email && $stream_hash[$idx]['instance_id'] == $instance->id) {
if (strtotime($stream_hash[$idx]['last_report']) < time() - self::GAP_TIME) {
$logger->logInfo("killing process " . $stream_hash[$idx]['process_id'] . " -- it has not updated recently", __METHOD__ . ',' . __LINE__);
$this->psKill($stream_hash[$idx]['process_id']);
$this->stream_proc_dao->deleteProcess($stream_hash[$idx]['process_id']);
$start_new_proc = true;
} else {
$logger->logInfo("process " . $stream_hash[$idx]['process_id'] . " listed with recent update time for instance with {$owner_email} and " . $stream_hash[$idx]['instance_id'] . "-- not starting another one", __METHOD__ . ',' . __LINE__);
$count++;
// include this proc in the count of running processes
}
} else {
// start up a process for that instance
$start_new_proc = true;
}
if ($start_new_proc) {
$logger->logInfo("starting new process for " . "{$owner_email} and " . $instance->id, __METHOD__ . ',' . __LINE__);
$pass = $this->owner_dao->getPass($owner_email);
if ($pass && isset($this->php_path)) {
// @TODO - check that the dir paths are set properly
// then exec using that owner email and the encrypted pwd as args
$logfile = $this->log_dir . '/' . $owner_email . '_' . $instance->id . '.log';
$pid = shell_exec('cd ' . $this->streaming_dir . '; ' . $this->php_path . ' stream2.php ' . ' ' . $instance->id . ' ' . $owner_email . ' ' . $pass . ' > ' . $logfile . ' 2>&1 & echo $!');
if (!isset($pid)) {
throw new StreamingException("error: could not obtain PID when starting stream2 process.");
}
// insert PID and email/instance id information into the database.
$res = $this->stream_proc_dao->insertProcessInfo(trim($pid), $owner_email, $instance->id);
if (!$res) {
throw new StreamingException("error: issue inserting process information into database.");
}
$logger->logInfo("started pid " . trim($pid) . " for {$owner_email} and instance id " . $instance->id, __METHOD__ . ',' . __LINE__);
$count++;
} else {
$logger->logError("error: not launching stream for {$owner_email}-- error " . "with specified password or php path", __METHOD__ . ',' . __LINE__);
}
}
if ($count == self::MAX_INSTANCES) {
break;
// only open user stream process for up to MAX_OWNERS instances
}
} else {
$logger->logError("error: email info not available. not launching stream for instance " . $instance->id, __METHOD__ . ',' . __LINE__);
}
}
// end foreach instance
}
// end foreach owner
}