Mercurial > hg > blitz_stable
view src/com/go/trove/log/LogScribe.java @ 8:fa7203ea1622
Remove some dead code (Dave Brosius)
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 23 May 2009 11:27:41 +0100 |
parents | 3dc0c5604566 |
children |
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/* ==================================================================== * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group * ==================================================================== * The Tea Software License, Version 1.1 * * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by the * Walt Disney Internet Group (http://opensource.go.com/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must * not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact opensource@dig.com. * * 5. Products derived from this software may not be called "Tea", * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet", * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior * written permission of the Walt Disney Internet Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * For more information about Tea, please see http://opensource.go.com/. */ package com.go.trove.log; import java.io.*; import java.text.*; import java.util.TimeZone; import com.go.trove.util.FastDateFormat; /****************************************************************************** * LogScribe is a LogListener that writes log messages to a PrintWriter. Each * message is printed to a line that is prepended with other LogEvent * information. The default prepend format is as follows: * * <pre> * [event type code],[date & time],[thread name],[log source name]>[one space] * </pre> * * The event type codes are <tt>" D", " I", "*W" and "*E"</tt> for debug, * info, warn and error, respectively. The default date format looks like * this: <tt>"1999/06/08 18:08:34.067 PDT"</tt>. If there is no log source, or * it has no name, it is omitted from the prepend. Here is a sample line that * is written out: * * <pre> * I,1999/06/08 18:08:34.67 PDT,main> Started Transaction Manager * </pre> * * @author Brian S O'Neill * @version * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/07/02 <!-- $--> */ public class LogScribe implements LogListener { private PrintWriter mWriter; private DateFormat mSlowFormat; private FastDateFormat mFastFormat; private boolean mShowThread = true; private boolean mShowSourceName = true; public LogScribe(PrintWriter writer) { this(writer, (FastDateFormat)null); } public LogScribe(PrintWriter writer, DateFormat format) { mWriter = writer; mSlowFormat = format; if (format == null) { mFastFormat = FastDateFormat.getInstance("yyyy/MM/dd HH:mm:ss.SSS z"); } else if (format instanceof SimpleDateFormat) { SimpleDateFormat simple = (SimpleDateFormat)format; String pattern = simple.toPattern(); TimeZone timeZone = simple.getTimeZone(); DateFormatSymbols symbols = simple.getDateFormatSymbols(); mFastFormat = FastDateFormat.getInstance(pattern, timeZone, null, symbols); } } public LogScribe(PrintWriter writer, FastDateFormat format) { mWriter = writer; mSlowFormat = null; if (format == null) { format = FastDateFormat.getInstance("yyyy/MM/dd HH:mm:ss.SSS z"); } mFastFormat = format; } public void logMessage(LogEvent e) { String message = e.getMessage(); if (message != null) { synchronized (mWriter) { mWriter.print(createPrepend(e)); mWriter.println(message); mWriter.flush(); } } } public void logException(LogEvent e) { Throwable t = e.getException(); if (t == null) { logMessage(e); } else { synchronized (mWriter) { mWriter.print(createPrepend(e)); t.printStackTrace(mWriter); mWriter.flush(); } } } /** * The showing of the event thread name is on by default. */ public boolean isShowThreadEnabled() { return mShowThread; } public void setShowThreadEnabled(boolean enabled) { mShowThread = enabled; } /** * The showing of the event source name is on by default. */ public boolean isShowSourceEnabled() { return mShowSourceName; } public void setShowSourceEnabled(boolean enabled) { mShowSourceName = enabled; } /** * Creates the default line prepend for a message. */ protected String createPrepend(LogEvent e) { StringBuffer pre = new StringBuffer(80); String code = "??"; switch (e.getType()) { case LogEvent.DEBUG_TYPE: code = " D"; break; case LogEvent.INFO_TYPE: code = " I"; break; case LogEvent.WARN_TYPE: code = "*W"; break; case LogEvent.ERROR_TYPE: code = "*E"; break; } pre.append(code); pre.append(','); if (mFastFormat != null) { pre.append(mFastFormat.format(e.getTimestamp())); } else { synchronized (mSlowFormat) { pre.append(mSlowFormat.format(e.getTimestamp())); } } if (isShowThreadEnabled()) { pre.append(','); pre.append(e.getThreadName()); } if (isShowSourceEnabled()) { Log source = e.getLogSource(); if (source != null) { String sourceName = source.getName(); if (sourceName != null) { pre.append(','); pre.append(sourceName); } } } pre.append('>'); pre.append(' '); return pre.toString(); } }