Apache Log4j 1.2 Bridge allows applications coded to use Log4j 1.2 API to use Log4j 2 instead.

Bytecode (Java 8) for Apache Log4j 1.2 Bridge is provided in a separate JAR file like log4j-1.2-api-2.14.1.jar.

Source Code files for Apache Log4j 1.2 Bridge 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 1.2 Bridge 2.14.1 below.

⏎ org/apache/log4j/spi/AppenderAttachable.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.log4j.spi;

import org.apache.log4j.Appender;

import java.util.Enumeration;

/**
 * Interface for attaching appenders to objects.
 */
public interface AppenderAttachable {

    /**
     * Add an appender.
     * @param newAppender The Appender to add.
     */
    void addAppender(Appender newAppender);

    /**
     * Get all previously added appenders as an Enumeration.
     * @return The Enumeration of the Appenders.
     */
    Enumeration<Appender> getAllAppenders();

    /**
     * Get an appender by name.
     * @param name The name of the Appender.
     * @return The Appender.
     */
    Appender getAppender(String name);


    /**
     * Returns <code>true</code> if the specified appender is in list of
     * attached attached, <code>false</code> otherwise.
     * @param appender The Appender to check.
     * @return true if the Appender is attached.
     *
     * @since 1.2
     */
    boolean isAttached(Appender appender);

    /**
     * Remove all previously added appenders.
     */
    void removeAllAppenders();


    /**
     * Remove the appender passed as parameter from the list of appenders.
     * @param appender The Appender to remove.
     */
    void removeAppender(Appender appender);


    /**
     * Remove the appender with the name passed as parameter from the
     * list of appenders.
     * @param name The name of the Appender to remove.
     */
    void removeAppender(String name);
}

⏎ org/apache/log4j/spi/AppenderAttachable.java

Or download all of them as a single archive file:

File name: log4j-1.2-api-2.14.1-sources.jar
File size: 168047 bytes
Release date: 2021-03-06
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