অক্সফোর্ড লারনিং-এর গবেষনাঃ যেভাবে পড়ার অভ্যাস গড়ে তুলবেন আপনার সন্তানের মাঝে 

 *
 * @author Jordi Boggiano <j.boggiano@seld.be>
 * @author Christophe Coevoet <stof@notk.org>
 */
abstract class AbstractProcessingHandler extends AbstractHandler
{
    /**
     * {@inheritdoc}
     */
    public function handle(array $record)
    {
        if (!$this->isHandling($record)) {
            return false;
        }
 
        $record = $this->processRecord($record);
 
        $record['formatted'] = $this->getFormatter()->format($record);
 
        $this->write($record);
 
        return false === $this->bubble;
    }
 
    /**
     * Writes the record down to the log of the implementing handler
     *
     * @param  array $record
     * @return void
     */
    abstract protected function write(array $record);
 
    /**
     * Processes a record.
     *
     * @param  array $record
     * @return array
     */
    protected function processRecord(array $record)
    {

        }
        $ts->setTimezone(static::$timezone);
 
        $record = array(
            'message' => (string) $message,
            'context' => $context,
            'level' => $level,
            'level_name' => $levelName,
            'channel' => $this->name,
            'datetime' => $ts,
            'extra' => array(),
        );
 
        try {
            foreach ($this->processors as $processor) {
                $record = call_user_func($processor, $record);
            }
 
            while ($handler = current($this->handlers)) {
                if (true === $handler->handle($record)) {
                    break;
                }
 
                next($this->handlers);
            }
        } catch (Exception $e) {
            $this->handleException($e, $record);
        }
 
        return true;
    }
 
    /**
     * Ends a log cycle and frees all resources used by handlers.
     *
     * Closing a Handler means flushing all buffers and freeing any open resources/handles.
     * Handlers that have been closed should be able to accept log records again and re-open
     * themselves on demand, but this may not always be possible depending on implementation.
     *
     * This is useful at the end of a request and will be called automatically on every handler

     * @param  array  $context The log context
     * @return bool   Whether the record has been processed
     */
    public function err($message, array $context = array())
    {
        return $this->addRecord(static::ERROR, $message, $context);
    }
 
    /**
     * Adds a log record at the ERROR level.
     *
     * This method allows for compatibility with common interfaces.
     *
     * @param  string $message The log message
     * @param  array  $context The log context
     * @return bool   Whether the record has been processed
     */
    public function error($message, array $context = array())
    {
        return $this->addRecord(static::ERROR, $message, $context);
    }
 
    /**
     * Adds a log record at the CRITICAL level.
     *
     * This method allows for compatibility with common interfaces.
     *
     * @param  string $message The log message
     * @param  array  $context The log context
     * @return bool   Whether the record has been processed
     */
    public function crit($message, array $context = array())
    {
        return $this->addRecord(static::CRITICAL, $message, $context);
    }
 
    /**
     * Adds a log record at the CRITICAL level.
     *
     * This method allows for compatibility with common interfaces.

     * @return void
     */
    public function write($level, $message, array $context = [])
    {
        $this->writeLog($level, $message, $context);
    }
 
    /**
     * Write a message to Monolog.
     *
     * @param  string  $level
     * @param  string  $message
     * @param  array  $context
     * @return void
     */
    protected function writeLog($level, $message, $context)
    {
        $this->fireLogEvent($level, $message = $this->formatMessage($message), $context);
 
        $this->monolog->{$level}($message, $context);
    }
 
    /**
     * Register a file log handler.
     *
     * @param  string  $path
     * @param  string  $level
     * @return void
     */
    public function useFiles($path, $level = 'debug')
    {
        $this->monolog->pushHandler($handler = new StreamHandler($path, $this->parseLevel($level)));
 
        $handler->setFormatter($this->getDefaultFormatter());
    }
 
    /**
     * Register a daily file log handler.
     *
     * @param  string  $path

     *
     * @param  string  $message
     * @param  array  $context
     * @return void
     */
    public function critical($message, array $context = [])
    {
        $this->writeLog(__FUNCTION__, $message, $context);
    }
 
    /**
     * Log an error message to the logs.
     *
     * @param  string  $message
     * @param  array  $context
     * @return void
     */
    public function error($message, array $context = [])
    {
        $this->writeLog(__FUNCTION__, $message, $context);
    }
 
    /**
     * Log a warning message to the logs.
     *
     * @param  string  $message
     * @param  array  $context
     * @return void
     */
    public function warning($message, array $context = [])
    {
        $this->writeLog(__FUNCTION__, $message, $context);
    }
 
    /**
     * Log a notice to the logs.
     *
     * @param  string  $message
     * @param  array  $context
     * @return void

     */
    public function report(Exception $e)
    {
        if ($this->shouldntReport($e)) {
            return;
        }
 
        if (method_exists($e, 'report')) {
            return $e->report();
        }
 
        try {
            $logger = $this->container->make(LoggerInterface::class);
        } catch (Exception $ex) {
            throw $e; // throw the original exception
        }
 
        $logger->error(
            $e->getMessage(),
            array_merge($this->context(), ['exception' => $e]
        ));
    }
 
    /**
     * Determine if the exception should be reported.
     *
     * @param  \Exception  $e
     * @return bool
     */
    public function shouldReport(Exception $e)
    {
        return ! $this->shouldntReport($e);
    }
 
    /**
     * Determine if the exception is in the "do not report" list.
     *
     * @param  \Exception  $e
     * @return bool
     */

    protected $dontReport = [
        \Illuminate\Auth\AuthenticationException::class,
        \Illuminate\Auth\Access\AuthorizationException::class,
        \Symfony\Component\HttpKernel\Exception\HttpException::class,
        \Illuminate\Database\Eloquent\ModelNotFoundException::class,
        \Illuminate\Session\TokenMismatchException::class,
        \Illuminate\Validation\ValidationException::class,
    ];
 
    /**
     * Report or log an exception.
     *
     * This is a great spot to send exceptions to Sentry, Bugsnag, etc.
     *
     * @param  \Exception  $exception
     * @return void
     */
    public function report(Exception $exception)
    {
        parent::report($exception);
    }
 
    /**
     * Render an exception into an HTTP response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Exception  $exception
     * @return \Illuminate\Http\Response
     */
    public function render($request, Exception $exception)
    {
        return parent::render($request, $exception);
    }
 
    /**
     * Convert an authentication exception into an unauthenticated response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Illuminate\Auth\AuthenticationException  $exception
     * @return \Illuminate\Http\Response

    }
 
    /**
     * Handle an uncaught exception from the application.
     *
     * Note: Most exceptions can be handled via the try / catch block in
     * the HTTP and Console kernels. But, fatal error exceptions must
     * be handled differently since they are not normal exceptions.
     *
     * @param  \Throwable  $e
     * @return void
     */
    public function handleException($e)
    {
        if (! $e instanceof Exception) {
            $e = new FatalThrowableError($e);
        }
 
        try {
            $this->getExceptionHandler()->report($e);
        } catch (Exception $e) {
            //
        }
 
        if ($this->app->runningInConsole()) {
            $this->renderForConsole($e);
        } else {
            $this->renderHttpResponse($e);
        }
    }
 
    /**
     * Render an exception to the console.
     *
     * @param  \Exception  $e
     * @return void
     */
    protected function renderForConsole(Exception $e)
    {
        $this->getExceptionHandler()->renderForConsole(new ConsoleOutput, $e);