128 lines
3.5 KiB
PHP
128 lines
3.5 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2017 (original work) Open Assessment Technologies SA
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*
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*/
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namespace oat\oatbox\log;
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use oat\oatbox\service\ConfigurableService;
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use Psr\Log\LoggerInterface;
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use Psr\Log\LoggerTrait;
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use Psr\Log\NullLogger;
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class LoggerService extends ConfigurableService implements LoggerInterface
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{
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use LoggerTrait;
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const SERVICE_ID = 'generis/log';
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const LOGGER_OPTION = 'logger';
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/** @var LoggerInterface */
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protected $logger;
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/**
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* Add a Psr3 logger to LoggerService instance
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* Previous and new logger are encapsulated into a LoggerAggregator
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*
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* @param LoggerInterface $logger
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* @return LoggerAggregator|LoggerInterface
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*/
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public function addLogger(LoggerInterface $logger)
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{
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if ($this->isLoggerLoaded() && !($this->logger instanceof NullLogger)) {
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$logger = new LoggerAggregator([$logger, $this->logger]);
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}
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$this->logger = $logger;
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return $logger;
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}
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/**
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* Get the logger
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*
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* @return LoggerInterface
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*/
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public function getLogger()
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{
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if (!$this->isLoggerLoaded()) {
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$this->loadLogger();
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}
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return $this->logger;
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}
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/**
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* Wrap a log to built logger
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*
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* @param mixed $level
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* @param string $message
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* @param array $context
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*/
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public function log($level, $message, array $context = [])
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{
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$this->getLogger()->log($level, $message, $context);
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}
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/**
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* Load the logger from configuration
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*
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* If options does not contain any Psr3 Logger, NullLogger is set by default
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*
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* @return LoggerInterface
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*/
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protected function loadLogger()
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{
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$logger = null;
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if ($this->hasOption(self::LOGGER_OPTION)) {
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$loggerOptions = $this->getOption(self::LOGGER_OPTION);
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if (is_object($loggerOptions)) {
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if (is_a($loggerOptions, LoggerInterface::class)) {
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$logger = $loggerOptions;
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}
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} elseif (is_array($loggerOptions) && isset($loggerOptions['class'])) {
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$classname = $loggerOptions['class'];
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if (is_a($classname, LoggerInterface::class, true)) {
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if (isset($loggerOptions['options'])) {
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$logger = new $classname($loggerOptions['options']);
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} else {
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$logger = new $classname();
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}
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}
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}
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}
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if (!is_null($logger)) {
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$this->logger = $logger;
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} else {
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$this->logger = new NullLogger();
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}
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return $this->logger;
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}
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/**
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* Check if the logger is loaded from configuration
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*
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* @return bool
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*/
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protected function isLoggerLoaded()
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{
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return $this->logger instanceof LoggerInterface;
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}
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}
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