001    /**
002     * Copyright (c) 2000-2011 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.util;
016    
017    import com.liferay.portal.kernel.io.unsync.UnsyncPrintWriter;
018    import com.liferay.portal.kernel.io.unsync.UnsyncStringWriter;
019    
020    import java.io.PrintWriter;
021    
022    /**
023     * @author Brian Wing Shun Chan
024     */
025    public class StackTraceUtil {
026    
027            public static String getStackTrace(Throwable t) {
028                    String stackTrace = null;
029    
030                    PrintWriter printWriter = null;
031    
032                    try {
033                            UnsyncStringWriter unsyncStringWriter = new UnsyncStringWriter();
034    
035                            printWriter = new UnsyncPrintWriter(unsyncStringWriter);
036    
037                            t.printStackTrace(printWriter);
038    
039                            printWriter.flush();
040    
041                            stackTrace = unsyncStringWriter.toString();
042                    }
043                    finally {
044                            if (printWriter != null) {
045                                    printWriter.flush();
046                                    printWriter.close();
047                            }
048                    }
049    
050                    return stackTrace;
051            }
052    
053    }