/lib/Elastica/Log.php

<?php

/**
 * Elastica log object
 *
 * @category Xodoa
 * @package Elastica
 * @author Nicolas Ruflin <spam@ruflin.com>
 */
class Elastica_Log
{
    /**
     * Log path or true if enabled
     *
     * @var string|bool
     */
    protected $_log = false;

    /**
     * Last logged message
     *
     * @var string Last logged message
     */
    protected $_lastMessage = '';

    /**
     * Inits log object. Checks if logging is enabled for the given client
     *
     * @param Elastica_Client $client
     */
    public function __construct(Elastica_Client $client)
    {
        $this->setLog($client->getConfig('log'));
    }

    /**
     * Log a message
     *
     * @param string|Elastica_Request $message
     */
    public function log($message)
    {
        if (!$this->_log) {
            return;
        }

        if ($message instanceof Elastica_Request) {
            $message = $this->_convertRequest($message);
        }

        $this->_lastMessage = $message;

        if (is_string($this->_log)) {
            error_log($message . PHP_EOL, 3, $this->_log);
        } else {
            error_log($message);
        }

    }

    /**
     * Enable/disable log or set log path
     *
     * @param  bool|string  $log Enables log or sets log path
     * @return Elastica_Log
     */
    public function setLog($log)
    {
        $this->_log = $log;

        return $this;
    }

    /**
     * Converts a request to a log message
     *
     * @param  Elastica_Request $request
     * @return string           Request log message
     */
    protected function _convertRequest(Elastica_Request $request)
    {
        $message = 'curl -X' . strtoupper($request->getMethod()) . ' ';
        $message .= '\'http://' . $request->getClient()->getHost() . ':' . $request->getClient()->getPort() . '/';
        $message .= $request->getPath();

        $query = $request->getQuery();
        if (!empty($query)) {
            $message .= '?' . http_build_query($query);
        }

        $message .= '\'';

        $data = $request->getData();
        if (!empty($data)) {
            $message .= ' -d \'' . json_encode($data) . '\'';
        }

        return $message;
    }

    /**
     * Return last logged message
     *
     * @return string Last logged message
     */
    public function getLastMessage()
    {
        return $this->_lastMessage;
    }
}