/* * StatsTracker.java - This file is part of the Jakstab project. * Copyright 2007-2015 Johannes Kinder <jk@jakstab.org> * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, see <http://www.gnu.org/licenses/>. */ package org.jakstab; import java.util.HashMap; import java.util.Map; import org.jakstab.util.Logger; /** * Simple statistics tracker */ public class StatsTracker { private static class SingletonHolder { public static final StatsTracker INSTANCE = new StatsTracker(); } public static StatsTracker getInstance() { return SingletonHolder.INSTANCE; } private StringBuffer statsBuilder; private Map<String, String> namedVals; private final Logger logger; private StatsTracker() { super(); logger = Logger.getLogger(StatsTracker.class); statsBuilder = new StringBuffer(); namedVals = new HashMap<String, String>(); } public void record(Object obj) { statsBuilder.append(obj); statsBuilder.append(','); } public void record(String type, Object obj) { namedVals.put(type, obj.toString()); } public void print() { for (Map.Entry<String, String> entry : namedVals.entrySet()) { record(entry.getValue()); } logger.fatal(statsBuilder.toString()); } }