Source Code for Apache Log4j Flume Appender

Apache Log4j Flume Appender allows applications to send events to Flume Agents.

Bytecode (Java 8) for Apache Log4j Flume Appender is provided in a separate JAR file like log4j-flume-ng-2.14.1.jar.

Source Code files for Apache Log4j IOStreams 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 Flume Appender 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.
package org.apache.logging.log4j.flume.appender;

import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
import org.apache.logging.log4j.core.config.plugins.PluginFactory;
import org.apache.logging.log4j.core.util.Integers;
import org.apache.logging.log4j.status.StatusLogger;

 * Agent Specification for FlumeAvroAppender.
@Plugin(name = "Agent", category = "Core", printObject = true)
public final class Agent {

    private static final String DEFAULT_HOST = "localhost";

    private static final int DEFAULT_PORT = 35853;

    private static final Logger LOGGER = StatusLogger.getLogger();

    private final String host;

    private final int port;

    private Agent(final String host, final int port) { = host;
        this.port = port;

     * Retrieve the host name.
     * @return The name of the host.
    public String getHost() {
        return host;

     * Retrieve the port number.
     * @return The port number.
    public int getPort() {
        return port;

    public String toString() {
        return "host=" + host + " port=" + port;

     * Create an Agent.
     * @param host The host name.
     * @param port The port number.
     * @return The Agent.
    public static Agent createAgent(@PluginAttribute("host") String host,
            @PluginAttribute("port") final String port) {
        if (host == null) {
            host = DEFAULT_HOST;

        int portNum;
        try {
            portNum = Integers.parseInt(port, DEFAULT_PORT);
        } catch (final Exception ex) {
            LOGGER.error("Error parsing port number " + port, ex);
            return null;
        return new Agent(host, portNum);



Or download all of them as a single archive file:

File name: log4j-flume-ng-2.14.1-sources.jar
File size: 37127 bytes
Release date: 2021-03-06


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