Source Code for Apache Log4j Core Implementation

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 and source package like You can download them at Apache Log4j Website.

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



 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the license for the specific language governing permissions and
 * limitations under the license.

import java.util.HashMap;
import java.util.Map;

import org.apache.logging.log4j.core.Layout;
import org.apache.logging.log4j.core.appender.OutputStreamManager;

 * Abstract base class for managing sockets.
public abstract class AbstractSocketManager extends OutputStreamManager {

     * The Internet address of the host.
    protected final InetAddress inetAddress;

     * The name of the host.
    protected final String host;

     * The port on the host.
    protected final int port;

     * The Constructor.
     * @param name The unique name of this connection.
     * @param os The OutputStream to manage.
     * @param inetAddress The Internet address.
     * @param host The target host name.
     * @param port The target port number.
     * @param bufferSize The buffer size.
    public AbstractSocketManager(final String name, final OutputStream os, final InetAddress inetAddress,
            final String host, final int port, final Layout<? extends Serializable> layout, final boolean writeHeader,
            final int bufferSize) {
        super(os, name, layout, writeHeader, bufferSize);
        this.inetAddress = inetAddress; = host;
        this.port = port;

     * Gets this AbstractSocketManager's content format. Specified by:
     * <ul>
     * <li>Key: "port" Value: provided "port" param</li>
     * <li>Key: "address" Value: provided "address" param</li>
     * </ul>
     * @return Map of content format keys supporting AbstractSocketManager
    public Map<String, String> getContentFormat() {
        final Map<String, String> result = new HashMap<>(super.getContentFormat());
        result.put("port", Integer.toString(port));
        result.put("address", inetAddress.getHostAddress());
        return result;



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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