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| <?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 | |
| */ | |
| /** | |
| * Pool implmentation for LoggerAppender instances. | |
| * | |
| * The pool is used when configuring log4php. First all appender instances | |
| * are created in the pool. Afterward, they are linked to loggers, each | |
| * appender can be linked to multiple loggers. This makes sure duplicate | |
| * appenders are not created. | |
| * | |
| * @version $Revision: 1350602 $ | |
| * @package log4php | |
| */ | |
| class LoggerAppenderPool { | |
| /** Holds appenders indexed by their name */ | |
| public static $appenders = array(); | |
| /** | |
| * Adds an appender to the pool. | |
| * The appender must be named for this operation. | |
| * @param LoggerAppender $appender | |
| */ | |
| public static function add(LoggerAppender $appender) { | |
| $name = $appender->getName(); | |
| if(empty($name)) { | |
| trigger_error('log4php: Cannot add unnamed appender to pool.', E_USER_WARNING); | |
| return; | |
| } | |
| if (isset(self::$appenders[$name])) { | |
| trigger_error("log4php: Appender [$name] already exists in pool. Overwriting existing appender.", E_USER_WARNING); | |
| } | |
| self::$appenders[$name] = $appender; | |
| } | |
| /** | |
| * Retrieves an appender from the pool by name. | |
| * @param string $name Name of the appender to retrieve. | |
| * @return LoggerAppender The named appender or NULL if no such appender | |
| * exists in the pool. | |
| */ | |
| public static function get($name) { | |
| return isset(self::$appenders[$name]) ? self::$appenders[$name] : null; | |
| } | |
| /** | |
| * Removes an appender from the pool by name. | |
| * @param string $name Name of the appender to remove. | |
| */ | |
| public static function delete($name) { | |
| unset(self::$appenders[$name]); | |
| } | |
| /** | |
| * Returns all appenders from the pool. | |
| * @return array Array of LoggerAppender objects. | |
| */ | |
| public static function getAppenders() { | |
| return self::$appenders; | |
| } | |
| /** | |
| * Checks whether an appender exists in the pool. | |
| * @param string $name Name of the appender to look for. | |
| * @return boolean TRUE if the appender with the given name exists. | |
| */ | |
| public static function exists($name) { | |
| return isset(self::$appenders[$name]); | |
| } | |
| /** | |
| * Clears all appenders from the pool. | |
| */ | |
| public static function clear() { | |
| self::$appenders = array(); | |
| } |