library/log4php/configurators/LoggerConfiguratorDefault.php
changeset 46 f11c31f7fa3e
parent 45 a56e7f9a0463
child 47 03388ec805b4
deleted file mode 100644
--- a/library/log4php/configurators/LoggerConfiguratorDefault.php
+++ /dev/null
@@ -1,470 +0,0 @@
-<?php
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * @package log4php
- */
-
-/**
- * Default implementation of the logger configurator.
- *
- * Configures log4php based on a provided configuration file or array.
- *
- * @package log4php
- * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
- * @version $Revision: 1394956 $
- * @since 2.2
- */
-class LoggerConfiguratorDefault implements LoggerConfigurator {
-    /** XML configuration file format. */
-    const FORMAT_XML = 'xml';
-
-    /** PHP configuration file format. */
-    const FORMAT_PHP = 'php';
-
-    /** INI (properties) configuration file format. */
-    const FORMAT_INI = 'ini';
-
-    /** Defines which adapter should be used for parsing which format. */
-    private $adapters = array(
-        self::FORMAT_XML => 'LoggerConfigurationAdapterXML',
-        self::FORMAT_INI => 'LoggerConfigurationAdapterINI',
-        self::FORMAT_PHP => 'LoggerConfigurationAdapterPHP',
-    );
-
-    /** Default configuration; used if no configuration file is provided. */
-    private static $defaultConfiguration = array(
-        'threshold' => 'ALL',
-        'rootLogger' => array(
-            'level' => 'DEBUG',
-            'appenders' => array('default'),
-        ),
-        'appenders' => array(
-            'default' => array(
-                'class' => 'LoggerAppenderEcho'
-            ),
-        ),
-    );
-
-    /** Holds the appenders before they are linked to loggers. */
-    private $appenders = array();
-
-    /**
-     * Configures log4php based on the given configuration. The input can
-     * either be a path to the config file, or a PHP array holding the
-     * configuration.
-     *
-     * If no configuration is given, or if the given configuration cannot be
-     * parsed for whatever reason, a warning will be issued, and log4php
-     * will use the default configuration contained in
-     * {@link $defaultConfiguration}.
-     *
-     * @param LoggerHierarchy $hierarchy The hierarchy on which to perform
-     *        the configuration.
-     * @param string|array $input Either path to the config file or the
-     *        configuration as an array. If not set, default configuration
-     *        will be used.
-     */
-    public function configure(LoggerHierarchy $hierarchy, $input = null) {
-        $config = $this->parse($input);
-        $this->doConfigure($hierarchy, $config);
-    }
-
-    /**
-     * Parses the given configuration and returns the parsed configuration
-     * as a PHP array. Does not perform any configuration.
-     *
-     * If no configuration is given, or if the given configuration cannot be
-     * parsed for whatever reason, a warning will be issued, and the default
-     * configuration will be returned ({@link $defaultConfiguration}).
-     *
-     * @param string|array $input Either path to the config file or the
-     *        configuration as an array. If not set, default configuration
-     *        will be used.
-     * @return array The parsed configuration.
-     */
-    public function parse($input) {
-        // No input - use default configuration
-        if (!isset($input)) {
-            $config = self::$defaultConfiguration;
-        } // Array input - contains configuration within the array
-        else if (is_array($input)) {
-            $config = $input;
-        } // String input - contains path to configuration file
-        else if (is_string($input)) {
-            try {
-                $config = $this->parseFile($input);
-            } catch (LoggerException $e) {
-                $this->warn("Configuration failed. " . $e->getMessage() . " Using default configuration.");
-                $config = self::$defaultConfiguration;
-            }
-        } // Anything else is an error
-        else {
-            $this->warn("Invalid configuration param given. Reverting to default configuration.");
-            $config = self::$defaultConfiguration;
-        }
-
-        return $config;
-    }
-
-    /**
-     * Returns the default log4php configuration.
-     * @return array
-     */
-    public static function getDefaultConfiguration() {
-        return self::$defaultConfiguration;
-    }
-
-    /**
-     * Loads the configuration file from the given URL, determines which
-     * adapter to use, converts the configuration to a PHP array and
-     * returns it.
-     *
-     * @param string $url Path to the config file.
-     * @return The configuration from the config file, as a PHP array.
-     * @throws LoggerException If the configuration file cannot be loaded, or
-     *        if the parsing fails.
-     */
-    private function parseFile($url) {
-
-        if (!file_exists($url)) {
-            throw new LoggerException("File not found at [$url].");
-        }
-
-        $type = $this->getConfigType($url);
-        $adapterClass = $this->adapters[$type];
-
-        $adapter = new $adapterClass();
-        return $adapter->convert($url);
-    }
-
-    /** Determines configuration file type based on the file extension. */
-    private function getConfigType($url) {
-        $info = pathinfo($url);
-        $ext = strtolower($info['extension']);
-
-        switch ($ext) {
-            case 'xml':
-                return self::FORMAT_XML;
-
-            case 'ini':
-            case 'properties':
-                return self::FORMAT_INI;
-
-            case 'php':
-                return self::FORMAT_PHP;
-
-            default:
-                throw new LoggerException("Unsupported configuration file extension: $ext");
-        }
-    }
-
-    /**
-     * Constructs the logger hierarchy based on configuration.
-     *
-     * @param LoggerHierarchy $hierarchy
-     * @param array $config
-     */
-    private function doConfigure(LoggerHierarchy $hierarchy, $config) {
-        if (isset($config['threshold'])) {
-            $threshold = LoggerLevel::toLevel($config['threshold']);
-            if (isset($threshold)) {
-                $hierarchy->setThreshold($threshold);
-            } else {
-                $this->warn("Invalid threshold value [{$config['threshold']}] specified. Ignoring threshold definition.");
-            }
-        }
-
-        // Configure appenders and add them to the appender pool
-        if (isset($config['appenders']) && is_array($config['appenders'])) {
-            foreach ($config['appenders'] as $name => $appenderConfig) {
-                $this->configureAppender($name, $appenderConfig);
-            }
-        }
-
-        // Configure root logger
-        if (isset($config['rootLogger'])) {
-            $this->configureRootLogger($hierarchy, $config['rootLogger']);
-        }
-
-        // Configure loggers
-        if (isset($config['loggers']) && is_array($config['loggers'])) {
-            foreach ($config['loggers'] as $loggerName => $loggerConfig) {
-                $this->configureOtherLogger($hierarchy, $loggerName, $loggerConfig);
-            }
-        }
-
-        // Configure renderers
-        if (isset($config['renderers']) && is_array($config['renderers'])) {
-            foreach ($config['renderers'] as $rendererConfig) {
-                $this->configureRenderer($hierarchy, $rendererConfig);
-            }
-        }
-
-        if (isset($config['defaultRenderer'])) {
-            $this->configureDefaultRenderer($hierarchy, $config['defaultRenderer']);
-        }
-    }
-
-    private function configureRenderer(LoggerHierarchy $hierarchy, $config) {
-        if (empty($config['renderingClass'])) {
-            $this->warn("Rendering class not specified. Skipping renderer definition.");
-            return;
-        }
-
-        if (empty($config['renderedClass'])) {
-            $this->warn("Rendered class not specified. Skipping renderer definition.");
-            return;
-        }
-
-        // Error handling performed by RendererMap
-        $hierarchy->getRendererMap()->addRenderer($config['renderedClass'], $config['renderingClass']);
-    }
-
-    private function configureDefaultRenderer(LoggerHierarchy $hierarchy, $class) {
-        if (empty($class)) {
-            $this->warn("Rendering class not specified. Skipping default renderer definition.");
-            return;
-        }
-
-        // Error handling performed by RendererMap
-        $hierarchy->getRendererMap()->setDefaultRenderer($class);
-    }
-
-    /**
-     * Configures an appender based on given config and saves it to
-     * {@link $appenders} array so it can be later linked to loggers.
-     * @param string $name Appender name.
-     * @param array $config Appender configuration options.
-     */
-    private function configureAppender($name, $config) {
-
-        // TODO: add this check to other places where it might be useful
-        if (!is_array($config)) {
-            $type = gettype($config);
-            $this->warn("Invalid configuration provided for appender [$name]. Expected an array, found <$type>. Skipping appender definition.");
-            return;
-        }
-
-        // Parse appender class
-        $class = $config['class'];
-        if (empty($class)) {
-            $this->warn("No class given for appender [$name]. Skipping appender definition.");
-            return;
-        }
-        if (!class_exists($class)) {
-            $this->warn("Invalid class [$class] given for appender [$name]. Class does not exist. Skipping appender definition.");
-            return;
-        }
-
-        // Instantiate the appender
-        $appender = new $class($name);
-        if (!($appender instanceof LoggerAppender)) {
-            $this->warn("Invalid class [$class] given for appender [$name]. Not a valid LoggerAppender class. Skipping appender definition.");
-            return;
-        }
-
-        // Parse the appender threshold
-        if (isset($config['threshold'])) {
-            $threshold = LoggerLevel::toLevel($config['threshold']);
-            if ($threshold instanceof LoggerLevel) {
-                $appender->setThreshold($threshold);
-            } else {
-                $this->warn("Invalid threshold value [{$config['threshold']}] specified for appender [$name]. Ignoring threshold definition.");
-            }
-        }
-
-        // Parse the appender layout
-        if ($appender->requiresLayout() && isset($config['layout'])) {
-            $this->createAppenderLayout($appender, $config['layout']);
-        }
-
-        // Parse filters
-        if (isset($config['filters']) && is_array($config['filters'])) {
-            foreach ($config['filters'] as $filterConfig) {
-                $this->createAppenderFilter($appender, $filterConfig);
-            }
-        }
-
-        // Set options if any
-        if (isset($config['params'])) {
-            $this->setOptions($appender, $config['params']);
-        }
-
-        // Activate and save for later linking to loggers
-        $appender->activateOptions();
-        $this->appenders[$name] = $appender;
-    }
-
-    /**
-     * Parses layout config, creates the layout and links it to the appender.
-     * @param LoggerAppender $appender
-     * @param array $config Layout configuration.
-     */
-    private function createAppenderLayout(LoggerAppender $appender, $config) {
-        $name = $appender->getName();
-        $class = $config['class'];
-        if (empty($class)) {
-            $this->warn("Layout class not specified for appender [$name]. Reverting to default layout.");
-            return;
-        }
-        if (!class_exists($class)) {
-            $this->warn("Nonexistant layout class [$class] specified for appender [$name]. Reverting to default layout.");
-            return;
-        }
-
-        $layout = new $class();
-        if (!($layout instanceof LoggerLayout)) {
-            $this->warn("Invalid layout class [$class] sepcified for appender [$name]. Reverting to default layout.");
-            return;
-        }
-
-        if (isset($config['params'])) {
-            $this->setOptions($layout, $config['params']);
-        }
-
-        $layout->activateOptions();
-        $appender->setLayout($layout);
-    }
-
-    /**
-     * Parses filter config, creates the filter and adds it to the appender's
-     * filter chain.
-     * @param LoggerAppender $appender
-     * @param array $config Filter configuration.
-     */
-    private function createAppenderFilter(LoggerAppender $appender, $config) {
-        $name = $appender->getName();
-        $class = $config['class'];
-        if (!class_exists($class)) {
-            $this->warn("Nonexistant filter class [$class] specified on appender [$name]. Skipping filter definition.");
-            return;
-        }
-
-        $filter = new $class();
-        if (!($filter instanceof LoggerFilter)) {
-            $this->warn("Invalid filter class [$class] sepcified on appender [$name]. Skipping filter definition.");
-            return;
-        }
-
-        if (isset($config['params'])) {
-            $this->setOptions($filter, $config['params']);
-        }
-
-        $filter->activateOptions();
-        $appender->addFilter($filter);
-    }
-
-    /**
-     * Configures the root logger
-     * @see configureLogger()
-     */
-    private function configureRootLogger(LoggerHierarchy $hierarchy, $config) {
-        $logger = $hierarchy->getRootLogger();
-        $this->configureLogger($logger, $config);
-    }
-
-    /**
-     * Configures a logger which is not root.
-     * @see configureLogger()
-     */
-    private function configureOtherLogger(LoggerHierarchy $hierarchy, $name, $config) {
-        // Get logger from hierarchy (this creates it if it doesn't already exist)
-        $logger = $hierarchy->getLogger($name);
-        $this->configureLogger($logger, $config);
-    }
-
-    /**
-     * Configures a logger.
-     *
-     * @param Logger $logger The logger to configure
-     * @param array $config Logger configuration options.
-     */
-    private function configureLogger(Logger $logger, $config) {
-        $loggerName = $logger->getName();
-
-        // Set logger level
-        if (isset($config['level'])) {
-            $level = LoggerLevel::toLevel($config['level']);
-            if (isset($level)) {
-                $logger->setLevel($level);
-            } else {
-                $this->warn("Invalid level value [{$config['level']}] specified for logger [$loggerName]. Ignoring level definition.");
-            }
-        }
-
-        // Link appenders to logger
-        if (isset($config['appenders'])) {
-            foreach ($config['appenders'] as $appenderName) {
-                if (isset($this->appenders[$appenderName])) {
-                    $logger->addAppender($this->appenders[$appenderName]);
-                } else {
-                    $this->warn("Nonexistnant appender [$appenderName] linked to logger [$loggerName].");
-                }
-            }
-        }
-
-        // Set logger additivity
-        if (isset($config['additivity'])) {
-            try {
-                $additivity = LoggerOptionConverter::toBooleanEx($config['additivity'], null);
-                $logger->setAdditivity($additivity);
-            } catch (Exception $ex) {
-                $this->warn("Invalid additivity value [{$config['additivity']}] specified for logger [$loggerName]. Ignoring additivity setting.");
-            }
-        }
-    }
-
-    /**
-     * Helper method which applies given options to an object which has setters
-     * for these options (such as appenders, layouts, etc.).
-     *
-     * For example, if options are:
-     * <code>
-     * array(
-     *    'file' => '/tmp/myfile.log',
-     *    'append' => true
-     * )
-     * </code>
-     *
-     * This method will call:
-     * <code>
-     * $object->setFile('/tmp/myfile.log')
-     * $object->setAppend(true)
-     * </code>
-     *
-     * If required setters do not exist, it will produce a warning.
-     *
-     * @param mixed $object The object to configure.
-     * @param unknown_type $options
-     */
-    private function setOptions($object, $options) {
-        foreach ($options as $name => $value) {
-            $setter = "set$name";
-            if (method_exists($object, $setter)) {
-                $object->$setter($value);
-            } else {
-                $class = get_class($object);
-                $this->warn("Nonexistant option [$name] specified on [$class]. Skipping.");
-            }
-        }
-    }
-
-    /** Helper method to simplify error reporting. */
-    private function warn($message) {
-        trigger_error("log4php: $message", E_USER_WARNING);
-    }
-}