001/*
002 * GWTEventService
003 * Copyright (c) 2011 and beyond, strawbill UG (haftungsbeschr?nkt)
004 *
005 * This is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU Lesser General Public License as
007 * published by the Free Software Foundation; either version 3 of
008 * the License, or (at your option) any later version.
009 * Other licensing for GWTEventService may also be possible on request.
010 * Please view the license.txt of the project for more information.
011 *
012 * This software is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this software; if not, write to the Free
019 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
021 */
022package de.novanic.eventservice.client.logger;
023
024import com.google.gwt.core.client.GWT;
025
026/**
027 * This {@link de.novanic.eventservice.client.logger.ClientLogger} uses {@link com.google.gwt.core.client.GWT#log(String, Throwable)}
028 * to log client messages.
029 * {@link de.novanic.eventservice.client.logger.ClientLogger} can be used to log at the server side.
030 *
031 * @author sstrohschein
032 * <br>Date: 14.08.2008
033 * <br>Time: 21:19:21
034 */
035public class GWTClientLogger extends AbstractClientLogger
036{
037    private static final String CLIENT_PREFIX = "Client: ";
038    private static final String CLIENT_ERROR_PREFIX = "Client-Error: ";
039
040    protected GWTClientLogger() {}
041
042    /**
043     * Logs messages at the info level.
044     * @param aMessage message to log
045     */
046    public void log_internal(String aMessage) {
047        log(aMessage, CLIENT_PREFIX, null);
048    }
049
050    /**
051     * Logs messages at the error level.
052     * @param aMessage message to log
053     */
054    public void error_internal(String aMessage) {
055        log(aMessage, CLIENT_ERROR_PREFIX, null);
056    }
057
058    /**
059     * Logs messages at the error level.
060     * @param aMessage message to log
061     * @param aThrowable throwable to log
062     */
063    public void error_internal(String aMessage, Throwable aThrowable) {
064        log(aMessage, CLIENT_ERROR_PREFIX, aThrowable);
065    }
066
067    /**
068     * Logs a message with a prefix and a throwable.
069     * @param aMessage message to log
070     * @param aPrefix prefix (the message will be appended to the prefix)
071     * @param aThrowable throwable to log
072     */
073    private static void log(String aMessage, String aPrefix, Throwable aThrowable) {
074        GWT.log(aPrefix + aMessage, aThrowable);
075    }
076}