001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.q2.cli;
020
021import org.jpos.q2.CLICommand;
022import org.jpos.q2.CLIContext;
023import org.jpos.util.LogEvent;
024import org.jpos.util.Logger;
025import org.jpos.util.Profiler;
026
027import java.util.concurrent.CountDownLatch;
028
029/** CLI command that benchmarks logger throughput for a given thread count and message count. */
030@SuppressWarnings("unused")
031public class LOGGER_BENCHMARK implements CLICommand {
032    /** Default constructor; no instance state to initialise. */
033    public LOGGER_BENCHMARK() {}
034    public void exec(CLIContext ctx, String[] args) throws Exception {
035        if (args.length != 3) {
036            ctx.println (String.format ("Usage: %s threads messages", args[0]));
037            return;
038        }
039        int threadCount = Integer.parseInt(args[1]);
040        final int numMessages = Integer.parseInt(args[2]);
041        final Profiler p = new Profiler();
042        final CountDownLatch done = new CountDownLatch(threadCount);
043        for (int i = 0; i<threadCount; i++) {
044            final  String name = "Thread " + i;
045            new Thread() {
046                public void run() {
047                    for (int i = 0; i < numMessages; i++) {
048                        LogEvent ev = new LogEvent();
049                        ev.addMessage(name + " " + i);
050                        Logger.log(ev);
051                    }
052                    p.checkPoint (name);
053                    done.countDown();
054
055                }
056            }.start();
057        }
058        done.await();
059        p.dump (System.out, "");
060    }
061}