Optimized linked shows schedule filling
* Fairly big improvement in memory usage and execution time for 24 hour linked shows (memory usage no longer grows with show length)
This commit is contained in:
Albert Santoni
parent
7bd443f668
commit
60f4d112e7
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@ -280,6 +280,14 @@ class CcShow extends BaseCcShow {
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}
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return $instanceIds;
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}
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public function getFutureInstanceIds() {
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$instanceIds = array();
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foreach ($this->getFutureCcShowInstancess() as $ccShowInstance) {
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$instanceIds[] = $ccShowInstance->getDbId();
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}
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return $instanceIds;
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}
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public function getOtherInstances($instanceId)
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{
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@ -161,101 +161,132 @@ class Application_Service_SchedulerService
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return;
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}
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$schedule_sql = "SELECT * FROM cc_schedule ".
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"WHERE instance_id IN (".implode($instanceIds, ",").")";
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$ccSchedules = Application_Common_Database::prepareAndExecute(
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$schedule_sql);
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if (count($ccSchedules) > 0) {
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/* Find the show contents of just one of the instances. It doesn't
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* matter which instance we use since all the content is the same
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*/
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$ccSchedule = $ccSchedules[0];
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$showStamp_sql = "SELECT * FROM cc_schedule ".
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"WHERE instance_id = {$ccSchedule["instance_id"]} ".
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"ORDER BY starts";
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$showStamp = Application_Common_Database::prepareAndExecute(
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$showStamp_sql);
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//get time_filled so we can update cc_show_instances
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$timeFilled_sql = "SELECT time_filled FROM cc_show_instances ".
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"WHERE id = {$ccSchedule["instance_id"]}";
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$timeFilled = Application_Common_Database::prepareAndExecute(
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$timeFilled_sql, array(), Application_Common_Database::COLUMN);
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//need to find out which linked instances are empty
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$values = array();
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foreach ($instanceIds as $id) {
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$instanceSched_sql = "SELECT * FROM cc_schedule ".
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"WHERE instance_id = {$id} ".
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"ORDER by starts";
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$ccSchedules = Application_Common_Database::prepareAndExecute(
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$instanceSched_sql);
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/* If the show instance is empty OR it has different content than
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* the first instance, we need to fill/replace with the show stamp
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* (The show stamp is taken from the first show instance's content)
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*/
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if (count($ccSchedules) < 1 ||
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self::replaceInstanceContentCheck($ccSchedules, $showStamp)) {
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$instanceStart_sql = "SELECT starts FROM cc_show_instances ".
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"WHERE id = {$id} ".
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"ORDER BY starts";
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$nextStartDT = new DateTime(
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Application_Common_Database::prepareAndExecute(
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$instanceStart_sql, array(), Application_Common_Database::COLUMN),
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new DateTimeZone("UTC"));
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foreach ($showStamp as $item) {
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$endTimeDT = self::findEndTime($nextStartDT, $item["clip_length"]);
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if (is_null($item["file_id"])) {
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$item["file_id"] = "null";
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}
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if (is_null($item["stream_id"])) {
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$item["stream_id"] = "null";
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}
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$values[] = "(".
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"'{$nextStartDT->format("Y-m-d H:i:s")}', ".
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"'{$endTimeDT->format("Y-m-d H:i:s")}', ".
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"'{$item["clip_length"]}', ".
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"'{$item["fade_in"]}', ".
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"'{$item["fade_out"]}', ".
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"'{$item["cue_in"]}', ".
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"'{$item["cue_out"]}', ".
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"{$item["file_id"]}, ".
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"{$item["stream_id"]}, ".
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"{$id}, ".
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"{$item["position"]})";
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$nextStartDT = self::findTimeDifference($endTimeDT,
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Application_Model_Preference::GetDefaultCrossfadeDuration());
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} //foreach show item
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}
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} //foreach linked instance
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if (!empty($values)) {
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$insert_sql = "INSERT INTO cc_schedule (starts, ends, ".
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"clip_length, fade_in, fade_out, cue_in, cue_out, ".
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"file_id, stream_id, instance_id, position) VALUES ".
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implode($values, ",");
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Application_Common_Database::prepareAndExecute(
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$insert_sql, array(), Application_Common_Database::EXECUTE);
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//update time_filled in cc_show_instances
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$now = gmdate("Y-m-d H:i:s");
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$update_sql = "UPDATE cc_show_instances SET ".
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"time_filled = '{$timeFilled}', ".
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"last_scheduled = '{$now}' ".
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"WHERE show_id = {$ccShow->getDbId()}";
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Application_Common_Database::prepareAndExecute(
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$update_sql, array(), Application_Common_Database::EXECUTE);
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$doesAnyShowInstanceHaveContent = false;
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foreach ($instanceIds as $instanceId)
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{
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$schedule_sql = "SELECT instance_id FROM cc_schedule ".
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"WHERE instance_id=$instanceId";//#IN (".implode($instanceIds, ",").")";
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$ccSchedules = Application_Common_Database::prepareAndExecute(
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$schedule_sql);
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if (count($ccSchedules) > 0) {
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$doesAnyShowInstanceHaveContent = true;
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break;
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}
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}
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} //if at least one linked instance has content
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if ($doesAnyShowInstanceHaveContent == false)
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{
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//The linked shows are all empty, so there's nothing for us to do.
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//(No content should be propagated to the other show instances...
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return;
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}
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/* Find the show contents of just one of the instances. It doesn't
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* matter which instance we use since all the content is the same
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*/
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$ccSchedule = $ccSchedules[0];
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$showStamp_sql = "SELECT * FROM cc_schedule ".
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"WHERE instance_id = {$ccSchedule["instance_id"]} ".
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"ORDER BY starts";
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$showStamp = Application_Common_Database::prepareAndExecute(
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$showStamp_sql);
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//get time_filled so we can update cc_show_instances
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$timeFilled_sql = "SELECT time_filled FROM cc_show_instances ".
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"WHERE id = {$ccSchedule["instance_id"]}";
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$timeFilled = Application_Common_Database::prepareAndExecute(
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$timeFilled_sql, array(), Application_Common_Database::COLUMN);
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//need to find out which linked instances are empty
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$values = array();
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$futureInstanceIds = $ccShow->getFutureInstanceIds();
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$con = Propel::getConnection();
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try {
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$con->beginTransaction();
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foreach ($instanceIds as $id)
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{
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$instanceSched_sql = "SELECT * FROM cc_schedule ".
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"WHERE instance_id = {$id} ".
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"ORDER by starts";
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$ccSchedules = Application_Common_Database::prepareAndExecute(
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$instanceSched_sql);
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/* If the show instance is empty OR it has different content than
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* the first instance, we need to fill/replace with the show stamp
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* (The show stamp is taken from the first show instance's content)
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*/
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if (count($ccSchedules) < 1 ||
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self::replaceInstanceContentCheck($ccSchedules, $showStamp))
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{
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$instanceStart_sql = "SELECT starts FROM cc_show_instances ".
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"WHERE id = {$id} ".
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"ORDER BY starts";
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$nextStartDT = new DateTime(
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Application_Common_Database::prepareAndExecute(
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$instanceStart_sql, array(), Application_Common_Database::COLUMN),
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new DateTimeZone("UTC"));
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$defaultCrossfadeDuration = Application_Model_Preference::GetDefaultCrossfadeDuration();
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unset($values);
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$values = array();
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foreach ($showStamp as $item) {
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$endTimeDT = self::findEndTime($nextStartDT, $item["clip_length"]);
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if (is_null($item["file_id"])) {
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$item["file_id"] = "null";
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}
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if (is_null($item["stream_id"])) {
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$item["stream_id"] = "null";
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}
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$values[] = "(".
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"'{$nextStartDT->format("Y-m-d H:i:s")}', ".
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"'{$endTimeDT->format("Y-m-d H:i:s")}', ".
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"'{$item["clip_length"]}', ".
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"'{$item["fade_in"]}', ".
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"'{$item["fade_out"]}', ".
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"'{$item["cue_in"]}', ".
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"'{$item["cue_out"]}', ".
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"{$item["file_id"]}, ".
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"{$item["stream_id"]}, ".
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"{$id}, ".
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"{$item["position"]})";
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$nextStartDT = self::findTimeDifference($endTimeDT,
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$defaultCrossfadeDuration);
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} //foreach show item
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if (!empty($values)) {
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$insert_sql = "INSERT INTO cc_schedule (starts, ends, ".
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"clip_length, fade_in, fade_out, cue_in, cue_out, ".
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"file_id, stream_id, instance_id, position) VALUES ".
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implode($values, ",");
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Application_Common_Database::prepareAndExecute(
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$insert_sql, array(), Application_Common_Database::EXECUTE);
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}
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}
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} //foreach linked instance
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//update time_filled in cc_show_instances
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$now = gmdate("Y-m-d H:i:s");
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$update_sql = "UPDATE cc_show_instances SET ".
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"time_filled = '{$timeFilled}', ".
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"last_scheduled = '{$now}' ".
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"WHERE show_id = {$ccShow->getDbId()}";
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Application_Common_Database::prepareAndExecute(
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$update_sql, array(), Application_Common_Database::EXECUTE);
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$con->commit();
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Logging::info("finished fill");
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} catch (Exception $e) {
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$con->rollback();
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Logging::info("Error filling linked shows: ".$e->getMessage());
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exit();
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}
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}
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public static function fillPreservedLinkedShowContent($ccShow, $showStamp)
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