datasift / storyplayer

        $hostDetails = $this->getHostDetails();

        // do we have any app settings?

        if (!isset($hostDetails->appSettings)) {

            $msg = "host has no appSettings at all";

            $log->endAction($msg);

            throw Exceptions::newActionFailedException(__METHOD__, $msg);

        }

        // do we have the setting that we want?

        if (!$hostDetails->appSettings->hasData($path)) {

            $log->endAction("host has no appSettings for {$appName}");

            throw Exceptions::newActionFailedException(__METHOD__);

        }

        if (!isset($hostDetails->appSettings->$appName->$settingName)) {

            $log->endAction("host has no appSetting '{$settingName}' for {$appName}");

            throw Exceptions::newActionFailedException(__METHOD__);

        }

        // yes we do

        $value = $hostDetails->appSettings->$appName->$settingName;

        $hostDetails = $this->getHostDetails();

        // do we have any app settings?

        if (!isset($hostDetails->storySettings)) {

            $msg = "host has no storySettings at all";

            $log->endAction($msg);

            throw Exceptions::newActionFailedException(__METHOD__, $msg);

        }

        // do we have the setting that we want?

        if (!$hostDetails->storySettings->hasData($path)) {

        $log = Log::usingLog()->startAction("bind() to ZMQ tcp '{$socketType}' socket at host 'localhost':{$port}");

        // do we have a supported socket?

        if (!isset($this->socketMap[$socketType])) {

            $msg = "unknown ZMQ socket type '{$socketType}'";

            $log->endAction($msg);

            throw Exceptions::newActionFailedException(__METHOD__, $msg);

        }

        // make the connection

        $socket = new ZMQSocket($this->args[0], $this->socketMap[$socketType]);

        $log = Log::usingLog()->startAction("connect() to ZMQ '{$socketType}' socket on host '{$hostId}':{$port}");

        // do we have a supported socket?

        if (!isset($this->socketMap[$socketType])) {

            $msg = "unknown ZMQ socket type '{$socketType}'";

            $log->endAction($msg);

            throw Exceptions::newActionFailedException(__METHOD__, $msg);

        }

        // where are we connecting to?

        $ipAddress = Host::fromHost($hostId)->getIpAddress();