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2003-06-21 Michael Koch <konqueror@gmx.de> * java/util/logging/LogRecord.java, java/util/logging/Logger.java, java/util/logging/SocketHandler.java, java/util/logging/SimpleFormatter.java, java/util/logging/Formatter.java, java/util/logging/ErrorManager.java, java/util/logging/Handler.java, java/util/logging/FileHandler.java, java/util/logging/LogManager.java, java/util/logging/Level.java, java/util/logging/ConsoleHandler.java, java/util/logging/StreamHandler.java, java/util/logging/LoggingPermission.java, java/util/logging/Filter.java, java/util/logging/MemoryHandler.java, java/util/logging/XMLFormatter.java: New files from classpath. From-SVN: r68295
183 lines
4.9 KiB
Java
183 lines
4.9 KiB
Java
/* ErrorManager.java
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-- a class for dealing with errors that a Handler encounters
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during logging
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version.
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*/
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package java.util.logging;
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/**
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* An <code>ErrorManager</code> deals with errors that a <code>Handler</code>
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* encounters while logging.
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*
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* @see Handler#setErrorManager(ErrorManager)
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*
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* @author Sascha Brawer (brawer@acm.org)
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*/
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public class ErrorManager
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{
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/* The values have been taken from Sun's public J2SE 1.4 API
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* documentation.
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* See http://java.sun.com/j2se/1.4/docs/api/constant-values.html
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*/
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/**
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* Indicates that there was a failure that does not readily
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* fall into any of the other categories.
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*/
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public static final int GENERIC_FAILURE = 0;
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/**
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* Indicates that there was a problem upon writing to
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* an output stream.
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*/
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public static final int WRITE_FAILURE = 1;
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/**
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* Indicates that there was a problem upon flushing
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* an output stream.
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*/
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public static final int FLUSH_FAILURE = 2;
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/**
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* Indicates that there was a problem upon closing
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* an output stream.
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*/
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public static final int CLOSE_FAILURE = 3;
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/**
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* Indicates that there was a problem upon opening
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* an output stream.
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*/
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public static final int OPEN_FAILURE = 4;
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/**
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* Indicates that there was a problem upon formatting
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* the message of a log record.
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*/
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public static final int FORMAT_FAILURE = 5;
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private boolean everUsed = false;
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public ErrorManager()
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{
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}
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/**
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* Reports an error that occured upon logging. The default implementation
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* emits the very first error to System.err, ignoring subsequent errors.
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*
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* @param message a message describing the error, or <code>null</code> if
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* there is no suitable description.
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*
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* @param ex an exception, or <code>null</code> if the error is not
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* related to an exception.
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*
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* @param errorCode one of the defined error codes, for example
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* <code>ErrorManager.CLOSE_FAILURE</code>.
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*/
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public void error(String message, Exception ex, int errorCode)
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{
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if (everUsed)
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return;
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synchronized (ErrorManager.class)
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{
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/* The double check is intentional. If the first check was
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* omitted, the monitor would have to be entered every time
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* error() method was called. If the second check was
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* omitted, the code below could be executed by multiple
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* threads simultaneously.
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*/
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if (everUsed)
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return;
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everUsed = true;
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}
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String codeMsg;
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switch (errorCode)
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{
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case GENERIC_FAILURE:
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codeMsg = "GENERIC_FAILURE";
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break;
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case WRITE_FAILURE:
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codeMsg = "WRITE_FAILURE";
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break;
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case FLUSH_FAILURE:
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codeMsg = "FLUSH_FAILURE";
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break;
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case CLOSE_FAILURE:
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codeMsg = "CLOSE_FAILURE";
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break;
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case OPEN_FAILURE:
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codeMsg = "OPEN_FAILURE";
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break;
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case FORMAT_FAILURE:
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codeMsg = "FORMAT_FAILURE";
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break;
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default:
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codeMsg = String.valueOf(errorCode);
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break;
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}
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System.err.println("Error upon logging: " + codeMsg);
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if ((message != null) && (message.length() > 0))
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System.err.println(message);
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if (ex != null)
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ex.printStackTrace();
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}
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}
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