117 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			117 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * StatusNet, the distributed open-source microblogging tool
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 *
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 * Monitoring output helper for IoMaster and IoManager/QueueManager
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 *
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 * PHP version 5
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 *
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 * LICENCE: This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Affero General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Affero General Public License for more details.
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 *
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 * You should have received a copy of the GNU Affero General Public License
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 * @category  QueueManager
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 * @package   StatusNet
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 * @author    Brion Vibber <brion@status.net>
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 * @copyright 2010 StatusNet, Inc.
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 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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 * @link      http://status.net/
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 */
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class QueueMonitor
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{
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    protected $monSocket = null;
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    /**
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     * Increment monitoring statistics for a given counter, if configured.
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     * Only explicitly listed thread/site/queue owners will be incremented.
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     *
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     * @param string $key counter name
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     * @param array $owners list of owner keys like 'queue:xmpp' or 'site:stat01'
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     */
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    public function stats($key, $owners=array())
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    {
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        $this->ping(array('counter' => $key,
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                          'owners' => $owners));
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    }
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    /**
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     * Send thread state update to the monitoring server, if configured.
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     *
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     * @param string $thread ID (eg 'generic.1')
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     * @param string $state ('init', 'queue', 'shutdown' etc)
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     * @param string $substate (optional, eg queue name 'omb' 'sms' etc)
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     */
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    public function logState($threadId, $state, $substate='')
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    {
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        $this->ping(array('thread_id' => $threadId,
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                          'state' => $state,
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                          'substate' => $substate,
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                          'ts' => microtime(true)));
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    }
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    /**
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     * General call to the monitoring server
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     */
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    protected function ping($data)
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    {
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        $target = common_config('queue', 'monitor');
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        if (empty($target)) {
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            return;
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        }
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        $data = $this->prepMonitorData($data);
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        if (substr($target, 0, 4) == 'udp:') {
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            $this->pingUdp($target, $data);
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        } else if (substr($target, 0, 5) == 'http:') {
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            $this->pingHttp($target, $data);
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        } else {
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            common_log(LOG_ERR, __METHOD__ . ' unknown monitor target type ' . $target);
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        }
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    }
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    protected function pingUdp($target, $data)
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    {
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        if (!$this->monSocket) {
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            $this->monSocket = stream_socket_client($target, $errno, $errstr);
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        }
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        if ($this->monSocket) {
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            $post = http_build_query($data, '', '&');
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            stream_socket_sendto($this->monSocket, $post);
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        } else {
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            common_log(LOG_ERR, __METHOD__ . " UDP logging fail: $errstr");
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        }
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    }
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    protected function pingHttp($target, $data)
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    {
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        $client = new HTTPClient();
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        $result = $client->post($target, array(), $data);
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        if (!$result->isOk()) {
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            common_log(LOG_ERR, __METHOD__ . ' HTTP ' . $result->getStatus() .
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                                ': ' . $result->getBody());
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        }
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    }
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    protected function prepMonitorData($data)
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    {
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        #asort($data);
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        #$macdata = http_build_query($data, '', '&');
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        #$key = 'This is a nice old key';
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        #$data['hmac'] = hash_hmac('sha256', $macdata, $key);
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        return $data;
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    }
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}
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