wikimedia/mediawiki-extensions-DonationInterface

<?php
use Monolog\Formatter\LineFormatter;
use Monolog\Handler\SyslogHandler;
use Monolog\Logger;

/**
 * Creates loggers and profilers for DonationInterface
 *
 * @author Elliott Eggleston <eeggleston@wikimedia.org>
 */
class DonationLoggerFactory {
    /**
     * For use by test harnesses to override the instance returned
     * @var \Psr\Log\LoggerInterface
     */
    public static $overrideLogger = null;

    /**
     * @param GatewayType $adapter Get settings from this instance
     * @param string $suffix Append this string to the adapter identifier
     * @param LogPrefixProvider|null $prefixer Optionally use this to override
     *        prefixing via the adapter.
     * @return \Psr\Log\LoggerInterface
     */
    public static function getLogger( GatewayType $adapter, $suffix = '', LogPrefixProvider $prefixer = null ) {
        if ( $prefixer === null ) {
            $prefixer = $adapter;
        }
        return self::getLoggerFromParams(
            $adapter->getLogIdentifier(),
            $adapter->getGlobal( 'UseSyslog' ),
            $adapter->getGlobal( 'LogDebug' ),
            $suffix,
            $prefixer
        );
    }

    /**
     * Get a logger without an adapter instance
     * @param string $adapterType
     * @param string $prefix
     * @return \Psr\Log\LoggerInterface
     */
    public static function getLoggerForType( $adapterType, $prefix = '' ) {
        if ( $prefix === '' ) {
            $prefixer = null;
        } else {
            $prefixer = new FallbackLogPrefixer( $prefix );
        }
        return self::getLoggerFromParams(
            $adapterType::getLogIdentifier(),
            $adapterType::getGlobal( 'UseSyslog' ),
            $adapterType::getGlobal( 'LogDebug' ),
            '',
            $prefixer
        );
    }

    public static function getLoggerFromParams( $identifier, $useSyslog, $debug, $suffix, $prefixer ) {
        if ( self::$overrideLogger !== null ) {
            return self::$overrideLogger;
        }
        $identifier .= $suffix;

        $logger = new Logger( $identifier );
        $logThreshold = $debug ? Logger::DEBUG : Logger::INFO;

        if ( $useSyslog ) {
            $handler = new SyslogHandler( $identifier, LOG_USER, $logThreshold, true, 0 );
        } else {
            $handler = new MediaWikiLogHandler( $identifier, $logThreshold );
        }

        $formatter = new LineFormatter( '%message%' );
        $handler->setFormatter( $formatter );

        // If we have a prefixer, add a processor
        if ( $prefixer !== null ) {
            $processor = new DonationLogProcessor( $prefixer );
            $handler->pushProcessor( $processor );
        }
        $logger->pushHandler( $handler );
        return $logger;
    }

    /**
     * Retrieve a profiler instance which saves communication statistics
     * if the adapter's SaveCommStats global is set to true.
     * @param GatewayType $adapter
     * @return DonationProfiler
     */
    public static function getProfiler( GatewayType $adapter ) {
        if ( $adapter->getGlobal( 'SaveCommStats' ) ) {
            $commLogger = self::getLogger( $adapter, '_commstats' );
        } else {
            $commLogger = null;
        }
        return new DonationProfiler(
            self::getLogger( $adapter ),
            $commLogger,
            $adapter->getGatewayName()
        );
    }
}