Apache Log4j Core Implementation provides the functional components of the logging system. Users are free to create their own plugins and include them in the logging configuration. Apache Log4j Core is a required module to use Apache Log4j.

Bytecode (Java 8) for Apache Log4j Core Implementation is provided in a separate JAR file like log4j-core-2.14.1.jar.

Source Code files for Apache Log4j API are provided in both binary packge like apache-log4j-2.14.1-bin.zip and source package like apache-log4j-2.14.1-src.zip. You can download them at Apache Log4j Website.

You can also browse Source Code files for Apache Log4j Core Implementation 2.14.1 below.

⏎ org/apache/logging/log4j/core/jmx/LoggerContextAdminMBean.java

/*
 * 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.logging.log4j.core.jmx;

import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Map;

import javax.management.ObjectName;

/**
 * The MBean interface for monitoring and managing a {@code LoggerContext}.
 */
public interface LoggerContextAdminMBean {
    /**
     * ObjectName pattern ({@value} ) for LoggerContextAdmin MBeans. This
     * pattern contains a variable, which is the name of the logger context.
     * <p>
     * You can find all registered LoggerContextAdmin MBeans like this:
     * </p>
     *
     * <pre>
     * MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
     * String pattern = String.format(LoggerContextAdminMBean.PATTERN, &quot;*&quot;);
     * Set&lt;ObjectName&gt; loggerContextNames = mbs.queryNames(new ObjectName(pattern), null);
     * </pre>
     * <p>
     * Some characters are not allowed in ObjectNames. The logger context name
     * may be quoted. When LoggerContextAdmin MBeans are registered, their
     * ObjectNames are created using this pattern as follows:
     * </p>
     *
     * <pre>
     * String ctxName = Server.escape(loggerContext.getName());
     * String name = String.format(PATTERN, ctxName);
     * ObjectName objectName = new ObjectName(name);
     * </pre>
     *
     * @see Server#escape(String)
     */
    String PATTERN = Server.DOMAIN + ":type=%s";

    /**
     * Notification that the {@code Configuration} of the instrumented
     * {@code LoggerContext} has been reconfigured. Notifications of this type
     * ({@value} ) do not carry a message or user data.
     */
    String NOTIF_TYPE_RECONFIGURED = "com.apache.logging.log4j.core.jmx.config.reconfigured";

    /**
     * Returns the {@code ObjectName} that this MBean is registered with in the
     * MBean server.
     */
    ObjectName getObjectName();

    /**
     * Returns the status of the instrumented {@code LoggerContext}.
     *
     * @return the LoggerContext status.
     */
    String getStatus();

    /**
     * Returns the name of the instrumented {@code LoggerContext}.
     *
     * @return the name of the instrumented {@code LoggerContext}.
     */
    String getName();

    /**
     * Returns the configuration location URI as a String.
     *
     * @return the configuration location
     */
    String getConfigLocationUri();

    /**
     * Sets the configuration location to the specified URI. This will cause the
     * instrumented {@code LoggerContext} to reconfigure.
     *
     * @param configLocation location of the configuration file in
     *            {@link java.net.URI} format.
     * @throws URISyntaxException if the format of the specified
     *             configLocationURI is incorrect
     * @throws IOException if an error occurred reading the specified location
     */
    void setConfigLocationUri(String configLocation) throws URISyntaxException, IOException;

    /**
     * Returns the configuration text, which may be the contents of the
     * configuration file or the text that was last set with a call to
     * {@code setConfigText}. If reading a file, this method assumes the file's
     * character encoding is UTF-8.
     *
     * @return the configuration text
     * @throws IOException if a problem occurred reading the contents of the
     *             config file.
     */
    String getConfigText() throws IOException;

    /**
     * Returns the configuration text, which may be the contents of the
     * configuration file or the text that was last set with a call to
     * {@code setConfigText}.
     *
     * @param charsetName the encoding to use to convert the file's bytes into
     *            the resulting string.
     * @return the configuration text
     * @throws IOException if a problem occurred reading the contents of the
     *             config file.
     */
    String getConfigText(String charsetName) throws IOException;

    /**
     * Sets the configuration text. This does not replace the contents of the
     * configuration file, but <em>does</em> cause the instrumented
     * {@code LoggerContext} to be reconfigured with the specified text.
     *
     * @param configText the configuration text in XML or JSON format
     * @param charsetName name of the {@code Charset} used to convert the
     *            specified configText to bytes
     * @throws IllegalArgumentException if a problem occurs configuring from the
     *             specified text
     */
    void setConfigText(String configText, String charsetName);

    /**
     * Returns the name of the Configuration of the instrumented LoggerContext.
     *
     * @return the Configuration name
     */
    String getConfigName();

    /**
     * Returns the class name of the {@code Configuration} of the instrumented
     * LoggerContext.
     *
     * @return the class name of the {@code Configuration}.
     */
    String getConfigClassName();

    /**
     * Returns a string description of all Filters configured in the
     * {@code Configuration} of the instrumented LoggerContext.
     *
     * @return a string description of all Filters configured
     */
    String getConfigFilter();

    /**
     * Returns a map with configured properties.
     *
     * @return a map with configured properties.
     */
    Map<String, String> getConfigProperties();

}

⏎ org/apache/logging/log4j/core/jmx/LoggerContextAdminMBean.java

Or download all of them as a single archive file:

File name: log4j-core-2.14.1-sources.jar
File size: 1281358 bytes
Release date: 2021-03-06
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