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/net/SocketOptions.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.net;

import java.net.Socket;
import java.net.SocketException;

import org.apache.logging.log4j.core.Core;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginBuilderAttribute;
import org.apache.logging.log4j.core.config.plugins.PluginBuilderFactory;
import org.apache.logging.log4j.core.config.plugins.PluginElement;
import org.apache.logging.log4j.core.util.Builder;

/**
 * Holds all socket options settable via {@link Socket} methods.
 */
@Plugin(name = "SocketOptions", category = Core.CATEGORY_NAME, printObject = true)
public class SocketOptions implements Builder<SocketOptions>, Cloneable {

    @PluginBuilderFactory
    public static SocketOptions newBuilder() {
        return new SocketOptions();
    }

    @PluginBuilderAttribute
    private Boolean keepAlive;

    @PluginBuilderAttribute
    private Boolean oobInline;

    @PluginElement("PerformancePreferences")
    private SocketPerformancePreferences performancePreferences;

    @PluginBuilderAttribute
    private Integer receiveBufferSize;

    @PluginBuilderAttribute
    private Boolean reuseAddress;

    @PluginBuilderAttribute
    private Rfc1349TrafficClass rfc1349TrafficClass;

    @PluginBuilderAttribute
    private Integer sendBufferSize;

    @PluginBuilderAttribute
    private Integer soLinger;

    @PluginBuilderAttribute
    private Integer soTimeout;

    @PluginBuilderAttribute
    private Boolean tcpNoDelay;

    @PluginBuilderAttribute
    private Integer trafficClass;

    public void apply(final Socket socket) throws SocketException {
        if (keepAlive != null) {
            socket.setKeepAlive(keepAlive.booleanValue());
        }
        if (oobInline != null) {
            socket.setOOBInline(oobInline.booleanValue());
        }
        if (reuseAddress != null) {
            socket.setReuseAddress(reuseAddress.booleanValue());
        }
        if (performancePreferences != null) {
            performancePreferences.apply(socket);
        }
        if (receiveBufferSize != null) {
            socket.setReceiveBufferSize(receiveBufferSize.intValue());
        }
        if (soLinger != null) {
            socket.setSoLinger(true, soLinger.intValue());
        }
        if (soTimeout != null) {
            socket.setSoTimeout(soTimeout.intValue());
        }
        if (tcpNoDelay != null) {
            socket.setTcpNoDelay(tcpNoDelay.booleanValue());
        }
        final Integer actualTrafficClass = getActualTrafficClass();
        if (actualTrafficClass != null) {
            socket.setTrafficClass(actualTrafficClass);
        }
    }

    @Override
    public SocketOptions build() {
        try {
            return (SocketOptions) clone();
        } catch (final CloneNotSupportedException e) {
            throw new IllegalStateException(e);
        }
    }

    public Integer getActualTrafficClass() {
        if (trafficClass != null && rfc1349TrafficClass != null) {
            throw new IllegalStateException("You MUST not set both customTrafficClass and trafficClass.");
        }
        if (trafficClass != null) {
            return trafficClass;
        }
        if (rfc1349TrafficClass != null) {
            return Integer.valueOf(rfc1349TrafficClass.value());
        }
        return null;
    }

    public SocketPerformancePreferences getPerformancePreferences() {
        return performancePreferences;
    }

    public Integer getReceiveBufferSize() {
        return receiveBufferSize;
    }

    public Rfc1349TrafficClass getRfc1349TrafficClass() {
        return rfc1349TrafficClass;
    }

    public Integer getSendBufferSize() {
        return sendBufferSize;
    }

    public Integer getSoLinger() {
        return soLinger;
    }

    public Integer getSoTimeout() {
        return soTimeout;
    }

    public Integer getTrafficClass() {
        return trafficClass;
    }

    public Boolean isKeepAlive() {
        return keepAlive;
    }

    public Boolean isOobInline() {
        return oobInline;
    }

    public Boolean isReuseAddress() {
        return reuseAddress;
    }

    public Boolean isTcpNoDelay() {
        return tcpNoDelay;
    }

    public SocketOptions setKeepAlive(final boolean keepAlive) {
        this.keepAlive = Boolean.valueOf(keepAlive);
        return this;
    }

    public SocketOptions setOobInline(final boolean oobInline) {
        this.oobInline = Boolean.valueOf(oobInline);
        return this;
    }

    public SocketOptions setPerformancePreferences(final SocketPerformancePreferences performancePreferences) {
        this.performancePreferences = performancePreferences;
        return this;
    }

    public SocketOptions setReceiveBufferSize(final int receiveBufferSize) {
        this.receiveBufferSize = receiveBufferSize;
        return this;
    }

    public SocketOptions setReuseAddress(final boolean reuseAddress) {
        this.reuseAddress = Boolean.valueOf(reuseAddress);
        return this;
    }

    public SocketOptions setRfc1349TrafficClass(final Rfc1349TrafficClass trafficClass) {
        this.rfc1349TrafficClass = trafficClass;
        return this;
    }

    public SocketOptions setSendBufferSize(final int sendBufferSize) {
        this.sendBufferSize = sendBufferSize;
        return this;
    }

    public SocketOptions setSoLinger(final int soLinger) {
        this.soLinger = soLinger;
        return this;
    }

    public SocketOptions setSoTimeout(final int soTimeout) {
        this.soTimeout = soTimeout;
        return this;
    }

    public SocketOptions setTcpNoDelay(final boolean tcpNoDelay) {
        this.tcpNoDelay = Boolean.valueOf(tcpNoDelay);
        return this;
    }

    public SocketOptions setTrafficClass(final int trafficClass) {
        this.trafficClass = trafficClass;
        return this;
    }

    @Override
    public String toString() {
        return "SocketOptions [keepAlive=" + keepAlive + ", oobInline=" + oobInline + ", performancePreferences="
                + performancePreferences + ", receiveBufferSize=" + receiveBufferSize + ", reuseAddress=" + reuseAddress
                + ", rfc1349TrafficClass=" + rfc1349TrafficClass + ", sendBufferSize=" + sendBufferSize + ", soLinger="
                + soLinger + ", soTimeout=" + soTimeout + ", tcpNoDelay=" + tcpNoDelay + ", trafficClass="
                + trafficClass + "]";
    }
}

⏎ org/apache/logging/log4j/core/net/SocketOptions.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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