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JMole Kernel
There is a newer version: 2.0.2
package net.welen.jmole.protocols.logger;

/*
 * #%L
 * JMole, https://bitbucket.org/awelen/jmole
 * %%
 * Copyright (C) 2015 - 2020 Anders Welén, [email protected]
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * 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.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import java.util.Map;
import java.util.Map.Entry;
import java.util.logging.Level;

import net.welen.jmole.JMole;
import net.welen.jmole.presentation.PresentationInformation;
import net.welen.jmole.protocols.AbstractIntervalProtocol;
import net.welen.jmole.protocols.Utils;

public class Logger extends AbstractIntervalProtocol implements LoggerMBean {

	private final static java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(Logger.class.getName());

	private static final char SEP = '/';

	private static String PROPERTY_LOGGER_NAME = "jmole.protocol.logger.name";
	private static String PROPERTY_LOGGER_FORMAT = "jmole.protocol.logger.format";
	private static String PROPERTY_LOGGER_LEVEL = "jmole.protocol.logger.level";
	private static String PROPERTY_LOGGER_INTERVAL = "jmole.protocol.logger.interval";

	private Level level;
	private String format;
	private Long interval;
	private java.util.logging.Logger protocolLogger = java.util.logging.Logger.getLogger("JMole");
	private JMole jmole;

	@Override
	public void startProtocol(JMole jmole) throws Exception {
		this.jmole = jmole;

		String levelString = System.getProperty(PROPERTY_LOGGER_LEVEL);
		if (levelString == null) {
			levelString = "INFO";
		}
		level = Level.parse(levelString);

		String name = System.getProperty(PROPERTY_LOGGER_NAME);
		if (name != null) {
			protocolLogger = java.util.logging.Logger.getLogger(name);
		}

		format = System.getProperty(PROPERTY_LOGGER_FORMAT);
		if (format == null) {
			format = "[%k] %a [%A] = %v %U";
		}
		
		interval = Long.getLong(PROPERTY_LOGGER_INTERVAL);
		if (interval == null) {
			interval = 60000L;
		}

		super.startProtocol(jmole);
		LOG.log(Level.INFO, "JMole Logger protocol started: Level=" + levelString + ", Interval=" + interval);
	}

	@Override
	public void stopProtocol() throws Exception {
		LOG.log(Level.INFO, "Stopping JMole Logger protocol");
		super.stopProtocol();
		LOG.log(Level.INFO, "JMole Logger protocol stopped");
	}

	@Override
	public String getLevel() {
		return level.getName();
	}

	@Override
	public void setLevel(String level) {
		this.level = Level.parse(level);
	}

	@Override
	public long getInterval() {
		return interval;
	}

	@Override
	public void setInterval(long interval) {
		this.interval = interval;
	}

	@Override
	public String getFormat() {
		return format;
	}

	@Override
	public void setFormat(String format) {
		this.format = format;
	}

	@Override
	protected void handleMeasurement(String category, String name, String attribute, Object value, PresentationInformation presentationInformation) throws Exception {
		protocolLogger.log(level, Utils.formatLogString(format, SEP, category, name, attribute, value, presentationInformation));		
	}

	@Override
	protected void handleWarnings() throws Exception {
		for (Entry> categoryEntry : jmole.warningMessages().entrySet()) {
			for (Entry entry : categoryEntry.getValue().entrySet()) {
				protocolLogger.log(Level.WARNING, "[" + categoryEntry.getKey() + SEP + entry.getKey() + "] " + entry.getValue());
			}
		}
	}

	@Override
	protected void handleCriticals() throws Exception {
		for (Entry> categoryEntry : jmole.criticalMessages().entrySet()) {
			for (Entry entry : categoryEntry.getValue().entrySet()) {
				protocolLogger.log(Level.SEVERE, "[" + categoryEntry.getKey() + SEP + entry.getKey() + "] " + entry.getValue());		
			}
		}
	}

}