Mercurial > hg > blitz_condensed
view src/com/go/trove/log/LogEvent.java @ 28:4b2f23b6feca
Add a schema compatibility check to indexer that parallels storage.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 12 Jun 2010 10:11:15 +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.util.*; import java.lang.ref.WeakReference; /****************************************************************************** * LogEvent captures information that should be logged. LogEvents are one * of four types: debug, info, warn or error. All LogEvents have a * timestamp for when the event occurred and a reference to the thread * that created it. Most have an embedded message, and some have an * embedded exception. * * @author Brian S O'Neill * @version * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 9/07/00 <!-- $--> */ public class LogEvent extends EventObject { /** Debug type of LogEvent */ public static final int DEBUG_TYPE = 1; /** Info type of LogEvent */ public static final int INFO_TYPE = 2; /** Warn type of LogEvent */ public static final int WARN_TYPE = 3; /** Error type of LogEvent */ public static final int ERROR_TYPE = 4; private int mType; private Date mTimestamp; private String mMessage; private Throwable mThrowable; private String mThreadName; // WeakReference to a Thread. private transient WeakReference mThread; public LogEvent(Log log, int type, String message, Throwable throwable, Thread thread, Date timestamp) { super(log); if (type < DEBUG_TYPE || type > ERROR_TYPE) { throw new IllegalArgumentException ("Type out of range: " + type); } mType = type; if (message == null) { if (throwable != null) { mMessage = throwable.getMessage(); } } else { mMessage = message; } mThrowable = throwable; if (thread == null) { mThread = new WeakReference(Thread.currentThread()); } else { mThread = new WeakReference(thread); } if (timestamp == null) { mTimestamp = new Date(); } else { mTimestamp = timestamp; } } public LogEvent(Log log, int type, String message, Thread thread, Date timestamp) { this(log, type, message, null, thread, timestamp); } public LogEvent(Log log, int type, Throwable throwable, Thread thread, Date timestamp) { this(log, type, null, throwable, thread, timestamp); } public LogEvent(Log log, int type, String message, Thread thread) { this(log, type, message, null, thread, null); } public LogEvent(Log log, int type, Throwable throwable, Thread thread) { this(log, type, null, throwable, thread, null); } public LogEvent(Log log, int type, String message, Throwable throwable) { this(log, type, message, throwable, null, null); } public LogEvent(Log log, int type, String message) { this(log, type, message, null, null, null); } public LogEvent(Log log, int type, Throwable throwable) { this(log, type, null, throwable, null, null); } public Log getLogSource() { return (Log)getSource(); } /** * Returns the type of this LogEvent, which matches one of the defined * type constants. */ public int getType() { return mType; } /** * Returns the date and time of this event. */ public Date getTimestamp() { return mTimestamp; } /** * Message may be null. */ public String getMessage() { return mMessage; } /** * Returns null if there is no exception logged. */ public Throwable getException() { return mThrowable; } /** * Returns null if there is no exception logged. */ public String getExceptionStackTrace() { Throwable t = getException(); if (t == null) { return null; } StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); t.printStackTrace(pw); return sw.toString(); } /** * Returns the name of the thread that created this event. */ public String getThreadName() { if (mThreadName == null) { Thread t = getThread(); if (t != null) { mThreadName = t.getName(); } } return mThreadName; } /** * Returns the thread that created this event, which may be null if * this LogEvent was deserialized or the thread has been reclaimed. */ public Thread getThread() { return (Thread)mThread.get(); } public String toString() { String msg; if (getMessage() == null) { msg = "null"; } else { msg = '"' + getMessage() + '"'; } return getClass().getName() + "[" + getTimestamp() + ',' + getThreadName() + ',' + msg + "] from " + getSource(); } private void writeObject(ObjectOutputStream out) throws IOException { getThreadName(); out.defaultWriteObject(); } private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException { in.defaultReadObject(); } }