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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/util/logging/ConsoleHandler.java | |
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Diffstat (limited to 'libjava/classpath/java/util/logging/ConsoleHandler.java')
-rw-r--r-- | libjava/classpath/java/util/logging/ConsoleHandler.java | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/libjava/classpath/java/util/logging/ConsoleHandler.java b/libjava/classpath/java/util/logging/ConsoleHandler.java new file mode 100644 index 000000000..9f6bb7240 --- /dev/null +++ b/libjava/classpath/java/util/logging/ConsoleHandler.java @@ -0,0 +1,125 @@ +/* ConsoleHandler.java -- a class for publishing log messages to System.err + Copyright (C) 2002, 2004 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; + +/** + * A <code>ConsoleHandler</code> publishes log records to + * <code>System.err</code>. + * + * <p><strong>Configuration:</strong> Values of the subsequent + * <code>LogManager</code> properties are taken into consideration + * when a <code>ConsoleHandler</code> is initialized. + * If a property is not defined, or if it has an invalid + * value, a default is taken without an exception being thrown. + * + * <ul> + * + * <li><code>java.util.logging.ConsoleHandler.level</code> - specifies + * the initial severity level threshold. Default value: + * <code>Level.INFO</code>.</li> + * + * <li><code>java.util.logging.ConsoleHandler.filter</code> - specifies + * the name of a Filter class. Default value: No Filter.</li> + * + * <li><code>java.util.logging.ConsoleHandler.formatter</code> - specifies + * the name of a Formatter class. Default value: + * <code>java.util.logging.SimpleFormatter</code>.</li> + * + * <li><code>java.util.logging.ConsoleHandler.encoding</code> - specifies + * the name of the character encoding. Default value: + * the default platform encoding.</li> + * + * </ul> + * + * @author Sascha Brawer (brawer@acm.org) + */ +public class ConsoleHandler + extends StreamHandler +{ + /** + * Constructs a <code>StreamHandler</code> that publishes + * log records to <code>System.err</code>. The initial + * configuration is determined by the <code>LogManager</code> + * properties described above. + */ + public ConsoleHandler() + { + super(System.err, "java.util.logging.ConsoleHandler", Level.INFO, + /* formatter */ null, SimpleFormatter.class); + } + + + /** + * Forces any data that may have been buffered to the underlying + * output device, but does <i>not</i> close <code>System.err</code>. + * + * <p>In case of an I/O failure, the <code>ErrorManager</code> + * of this <code>ConsoleHandler</code> will be informed, but the caller + * of this method will not receive an exception. + */ + public void close() + { + flush(); + } + + + /** + * Publishes a <code>LogRecord</code> to the console, provided the + * record passes all tests for being loggable. + * + * <p>Most applications do not need to call this method directly. + * Instead, they will use use a <code>Logger</code>, which will + * create LogRecords and distribute them to registered handlers. + * + * <p>In case of an I/O failure, the <code>ErrorManager</code> + * of this <code>SocketHandler</code> will be informed, but the caller + * of this method will not receive an exception. + * + * <p>The GNU implementation of <code>ConsoleHandler.publish</code> + * calls flush() for every request to publish a record, so + * they appear immediately on the console. + * + * @param record the log event to be published. + */ + public void publish(LogRecord record) + { + super.publish(record); + flush(); + } +} |