| /* |
| * 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 org.apache.log4j.spi; |
| |
| import java.util.Enumeration; |
| |
| import org.apache.log4j.Appender; |
| import org.apache.log4j.Category; |
| import org.apache.log4j.Level; |
| import org.apache.log4j.Logger; |
| |
| /** |
| * A <code>LoggerRepository</code> is used to create and retrieve <code>Loggers</code>. |
| * <p> |
| * The relation between loggers in a repository depends on the repository but typically loggers are arranged in a named |
| * hierarchy. |
| * </p> |
| * <p> |
| * In addition to the creational methods, a <code>LoggerRepository</code> can be queried for existing loggers, can act |
| * as a point of registry for events related to loggers. |
| * </p> |
| * |
| * @since 1.2 |
| */ |
| public interface LoggerRepository { |
| |
| /** |
| * Add a {@link HierarchyEventListener} event to the repository. |
| * |
| * @param listener The listener |
| */ |
| void addHierarchyEventListener(HierarchyEventListener listener); |
| |
| /** |
| * Returns whether this repository is disabled for a given |
| * level. The answer depends on the repository threshold and the |
| * <code>level</code> parameter. See also {@link #setThreshold} |
| * method. |
| * |
| * @param level The level |
| * @return whether this repository is disabled. |
| */ |
| boolean isDisabled(int level); |
| |
| /** |
| * Set the repository-wide threshold. All logging requests below the |
| * threshold are immediately dropped. By default, the threshold is |
| * set to <code>Level.ALL</code> which has the lowest possible rank. |
| * |
| * @param level The level |
| */ |
| void setThreshold(Level level); |
| |
| /** |
| * Another form of {@link #setThreshold(Level)} accepting a string |
| * parameter instead of a <code>Level</code>. |
| * |
| * @param val The threshold value |
| */ |
| void setThreshold(String val); |
| |
| void emitNoAppenderWarning(Category cat); |
| |
| /** |
| * Get the repository-wide threshold. See {@link #setThreshold(Level)} for an explanation. |
| * |
| * @return the level. |
| */ |
| Level getThreshold(); |
| |
| Logger getLogger(String name); |
| |
| Logger getLogger(String name, LoggerFactory factory); |
| |
| Logger getRootLogger(); |
| |
| Logger exists(String name); |
| |
| void shutdown(); |
| |
| @SuppressWarnings("rawtypes") |
| Enumeration getCurrentLoggers(); |
| |
| /** |
| * Deprecated. Please use {@link #getCurrentLoggers} instead. |
| * |
| * @return an enumeration of loggers. |
| */ |
| @SuppressWarnings("rawtypes") |
| Enumeration getCurrentCategories(); |
| |
| void fireAddAppenderEvent(Category logger, Appender appender); |
| |
| void resetConfiguration(); |
| } |