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 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.

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org/apache/logging/log4j/core/time/internal/FixedPreciseClock.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.time.internal;

import org.apache.logging.log4j.core.time.MutableInstant;
import org.apache.logging.log4j.core.time.PreciseClock;

/**
 * Implementation of the {@code PreciseClock} interface that always returns a fixed time value.
 * @since 2.11
 */
public class FixedPreciseClock implements PreciseClock {
    private final long currentTimeMillis;
    private final int nanosOfMillisecond;

    /**
     * Constructs a {@code FixedPreciseClock} that always returns the epoch.
     */
    public FixedPreciseClock() {
        this(0);
    }

    /**
     * Constructs a {@code FixedPreciseClock} that always returns the specified time in milliseconds since the epoch.
     * @param currentTimeMillis milliseconds since the epoch
     */
    public FixedPreciseClock(final long currentTimeMillis) {
        this(currentTimeMillis, 0);
    }

    /**
     * Constructs a {@code FixedPreciseClock} that always returns the specified time in milliseconds since the epoch
     * and nanosecond of the millisecond.
     * @param currentTimeMillis milliseconds since the epoch
     * @param nanosOfMillisecond nanosecond of the specified millisecond
     */
    public FixedPreciseClock(final long currentTimeMillis, final int nanosOfMillisecond) {
        this.currentTimeMillis = currentTimeMillis;
        this.nanosOfMillisecond = nanosOfMillisecond;
    }

    @Override
    public void init(final MutableInstant instant) {
        instant.initFromEpochMilli(currentTimeMillis, nanosOfMillisecond);
    }

    @Override
    public long currentTimeMillis() {
        return currentTimeMillis;
    }
}

org/apache/logging/log4j/core/time/internal/FixedPreciseClock.java

 

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