001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.test;
016    
017    import java.util.List;
018    import java.util.concurrent.CopyOnWriteArrayList;
019    import java.util.logging.Handler;
020    import java.util.logging.Level;
021    import java.util.logging.LogRecord;
022    import java.util.logging.Logger;
023    
024    /**
025     * @author Shuyang Zhou
026     */
027    public class CaptureHandler extends Handler {
028    
029            public CaptureHandler(Logger logger, Level level) {
030                    _logger = logger;
031    
032                    _handlers = logger.getHandlers();
033                    _level = logger.getLevel();
034                    _useParentHandlers = logger.getUseParentHandlers();
035    
036                    for (Handler handler : _handlers) {
037                            logger.removeHandler(handler);
038                    }
039    
040                    logger.setLevel(level);
041                    logger.setUseParentHandlers(false);
042            }
043    
044            @Override
045            public void close() throws SecurityException {
046                    _logRecords.clear();
047    
048                    _logger.removeHandler(this);
049    
050                    for (Handler handler : _handlers) {
051                            _logger.addHandler(handler);
052                    }
053    
054                    _logger.setLevel(_level);
055                    _logger.setUseParentHandlers(_useParentHandlers);
056            }
057    
058            @Override
059            public void flush() {
060                    _logRecords.clear();
061            }
062    
063            public List<LogRecord> getLogRecords() {
064                    return _logRecords;
065            }
066    
067            @Override
068            public boolean isLoggable(LogRecord logRecord) {
069                    return false;
070            }
071    
072            @Override
073            public void publish(LogRecord logRecord) {
074                    _logRecords.add(logRecord);
075            }
076    
077            public List<LogRecord> resetLogLevel(Level level) {
078                    _logRecords.clear();
079    
080                    _logger.setLevel(level);
081    
082                    return _logRecords;
083            }
084    
085            private Handler[] _handlers;
086            private Level _level;
087            private Logger _logger;
088            private List<LogRecord> _logRecords = new CopyOnWriteArrayList<LogRecord>();
089            private boolean _useParentHandlers;
090    
091    }