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/appender/rolling/CompositeTriggeringPolicy.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.appender.rolling;

import java.util.Arrays;
import java.util.concurrent.TimeUnit;

import org.apache.logging.log4j.core.Core;
import org.apache.logging.log4j.core.LifeCycle;
import org.apache.logging.log4j.core.LifeCycle2;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginElement;
import org.apache.logging.log4j.core.config.plugins.PluginFactory;

/**
 * Triggering policy that wraps other triggering policies.
 */
@Plugin(name = "Policies", category = Core.CATEGORY_NAME, printObject = true)
public final class CompositeTriggeringPolicy extends AbstractTriggeringPolicy {

    private final TriggeringPolicy[] triggeringPolicies;

    private CompositeTriggeringPolicy(final TriggeringPolicy... triggeringPolicies) {
        this.triggeringPolicies = triggeringPolicies;
    }

    public TriggeringPolicy[] getTriggeringPolicies() {
        return triggeringPolicies;
    }

    /**
     * Initializes the policy.
     * @param manager The RollingFileManager.
     */
    @Override
    public void initialize(final RollingFileManager manager) {
        for (final TriggeringPolicy triggeringPolicy : triggeringPolicies) {
            LOGGER.debug("Initializing triggering policy {}", triggeringPolicy.toString());
            triggeringPolicy.initialize(manager);
        }
    }

    /**
     * Determines if a rollover should occur.
     * @param event A reference to the currently event.
     * @return true if a rollover should occur, false otherwise.
     */
    @Override
    public boolean isTriggeringEvent(final LogEvent event) {
        for (final TriggeringPolicy triggeringPolicy : triggeringPolicies) {
            if (triggeringPolicy.isTriggeringEvent(event)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Creates a CompositeTriggeringPolicy.
     * @param triggeringPolicy The triggering policies.
     * @return A CompositeTriggeringPolicy.
     */
    @PluginFactory
    public static CompositeTriggeringPolicy createPolicy(
                                                @PluginElement("Policies") final TriggeringPolicy... triggeringPolicy) {
        return new CompositeTriggeringPolicy(triggeringPolicy);
    }

    @Override
    public boolean stop(final long timeout, final TimeUnit timeUnit) {
        setStopping();
        boolean stopped = true;
        for (final TriggeringPolicy triggeringPolicy : triggeringPolicies) {
            if (triggeringPolicy instanceof LifeCycle2) {
                stopped &= ((LifeCycle2) triggeringPolicy).stop(timeout, timeUnit);
            } else if (triggeringPolicy instanceof LifeCycle) {
                ((LifeCycle) triggeringPolicy).stop();
                stopped &= true;
            }
        }
        setStopped();
        return stopped;
    }

    @Override
    public String toString() {
        return "CompositeTriggeringPolicy(policies=" + Arrays.toString(triggeringPolicies) + ")";
    }

}

⏎ org/apache/logging/log4j/core/appender/rolling/CompositeTriggeringPolicy.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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