/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.classic.issue.lbcore243;

import org.apache.log4j.xml.DOMConfigurator;

import ch.qos.logback.core.joran.spi.JoranException;

// WARNING This code compiles but does not measure anything useful because log4j-over-slf4j is a dependency. Log4j
// should be used instead

public class PerformanceComparatorLog4j {

    static org.apache.log4j.Logger log4jlogger = org.apache.log4j.Logger.getLogger(PerformanceComparatorLog4j.class);

    public static void main(String[] args) throws JoranException, InterruptedException {
        initLog4jWithoutImmediateFlush();

        // Let's run once for Just In Time compiler
        log4jDirectDebugCall();

        System.out.println("###############################################");
        System.out.println("Log4j    without immediate flush: " + log4jDirectDebugCall() + " nanos per call");
        System.out.println("###############################################");
    }

    private static long log4jDirectDebugCall() {
        Integer j = Integer.valueOf(2);
        long start = System.nanoTime();
        for (int i = 0; i < Common.loop; i++) {
            log4jlogger.debug("SEE IF THIS IS LOGGED " + j + ".");
        }
        return (System.nanoTime() - start) / Common.loop;
    }

    static String DIR_PREFIX = "src/test/java/ch/qos/logback/classic/issue/lbcore243/";

    static void initLog4jWithoutImmediateFlush() {
        DOMConfigurator.configure(DIR_PREFIX + "log4j_without_immediateFlush.xml");
    }

    static void initLog4jWithImmediateFlush() {
        DOMConfigurator.configure(DIR_PREFIX + "log4j_with_immediateFlush.xml");
    }
}