Counter.java

/*
 * JCarder -- cards Java programs to keep threads disentangled
 *
 * Copyright (C) 2006-2007 Enea AB
 * Copyright (C) 2007 Ulrik Svensson
 * Copyright (C) 2007 Joel Rosdahl
 *
 * This program is made available under the GNU GPL version 2, with a special
 * exception for linking with JUnit. See the accompanying file LICENSE.txt for
 * details.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 */

package com.enea.jcarder.util;

import com.enea.jcarder.util.logging.Logger;

import net.jcip.annotations.NotThreadSafe;

@NotThreadSafe
public final class Counter {
    final int mLogIntervall;
    final String mName;
    final Logger mLogger;
    int mValue = 0;

    public Counter(String name, Logger logger, int logInterval) {
        mName = name;
        mLogger = logger;
        mLogIntervall = logInterval;
    }

    public void increment() {
        mValue++;
        if ((mValue % mLogIntervall) == 0) {
            mLogger.fine(mName + ": " + mValue);
        } else if (mLogger.isLoggable(Logger.Level.FINEST)) {
            mLogger.finest(mName + ": " + mValue);
        }
    }
}