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Diffstat (limited to 'libjava/java/util/logging/ErrorManager.java')
| -rw-r--r-- | libjava/java/util/logging/ErrorManager.java | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/libjava/java/util/logging/ErrorManager.java b/libjava/java/util/logging/ErrorManager.java deleted file mode 100644 index 57c079fe25b..00000000000 --- a/libjava/java/util/logging/ErrorManager.java +++ /dev/null @@ -1,194 +0,0 @@ -/* ErrorManager.java -- - A class for dealing with errors that a Handler encounters - during logging - Copyright (C) 2002, 2003 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package java.util.logging; - -/** - * An <code>ErrorManager</code> deals with errors that a <code>Handler</code> - * encounters while logging. - * - * @see Handler#setErrorManager(ErrorManager) - * - * @author Sascha Brawer (brawer@acm.org) - */ -public class ErrorManager -{ - /* The values have been taken from Sun's public J2SE 1.4 API - * documentation. - * See http://java.sun.com/j2se/1.4/docs/api/constant-values.html - */ - - /** - * Indicates that there was a failure that does not readily - * fall into any of the other categories. - */ - public static final int GENERIC_FAILURE = 0; - - - /** - * Indicates that there was a problem upon writing to - * an output stream. - */ - public static final int WRITE_FAILURE = 1; - - - /** - * Indicates that there was a problem upon flushing - * an output stream. - */ - public static final int FLUSH_FAILURE = 2; - - - /** - * Indicates that there was a problem upon closing - * an output stream. - */ - public static final int CLOSE_FAILURE = 3; - - - /** - * Indicates that there was a problem upon opening - * an output stream. - */ - public static final int OPEN_FAILURE = 4; - - - /** - * Indicates that there was a problem upon formatting - * the message of a log record. - */ - public static final int FORMAT_FAILURE = 5; - - - /** - * Indicates whether the {@link #error} method of this ErrorManager - * has ever been used. - * - * Declared volatile in order to correctly support the - * double-checked locking idiom (once the revised Java Memory Model - * gets adopted); see Classpath bug #2944. - */ - private volatile boolean everUsed = false; - - - public ErrorManager() - { - } - - - /** - * Reports an error that occured upon logging. The default implementation - * emits the very first error to System.err, ignoring subsequent errors. - * - * @param message a message describing the error, or <code>null</code> if - * there is no suitable description. - * - * @param ex an exception, or <code>null</code> if the error is not - * related to an exception. - * - * @param errorCode one of the defined error codes, for example - * <code>ErrorManager.CLOSE_FAILURE</code>. - */ - public void error(String message, Exception ex, int errorCode) - { - if (everUsed) - return; - - synchronized (this) - { - /* The double check is intentional. If the first check was - * omitted, the monitor would have to be entered every time - * error() method was called. If the second check was - * omitted, the code below could be executed by multiple - * threads simultaneously. - * - * This is the 'double-checked locking' idiom, which is broken - * with the current version of the Java memory model. However, - * we assume that JVMs will have adopted a revised version of - * the Java Memory Model by the time GNU Classpath gains - * widespread acceptance. See Classpath bug #2944. - */ - if (everUsed) - return; - - everUsed = true; - } - - String codeMsg; - switch (errorCode) - { - case GENERIC_FAILURE: - codeMsg = "GENERIC_FAILURE"; - break; - - case WRITE_FAILURE: - codeMsg = "WRITE_FAILURE"; - break; - - case FLUSH_FAILURE: - codeMsg = "FLUSH_FAILURE"; - break; - - case CLOSE_FAILURE: - codeMsg = "CLOSE_FAILURE"; - break; - - case OPEN_FAILURE: - codeMsg = "OPEN_FAILURE"; - break; - - case FORMAT_FAILURE: - codeMsg = "FORMAT_FAILURE"; - break; - - default: - codeMsg = String.valueOf(errorCode); - break; - } - - System.err.println("Error upon logging: " + codeMsg); - if ((message != null) && (message.length() > 0)) - System.err.println(message); - - if (ex != null) - ex.printStackTrace(); - } -} - |