mirror of git://gcc.gnu.org/git/gcc.git
126 lines
4.5 KiB
Java
126 lines
4.5 KiB
Java
/* ConsoleHandler.java -- a class for publishing log messages to System.err
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Copyright (C) 2002, 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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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package java.util.logging;
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/**
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* A <code>ConsoleHandler</code> publishes log records to
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* <code>System.err</code>.
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*
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* <p><strong>Configuration:</strong> Values of the subsequent
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* <code>LogManager</code> properties are taken into consideration
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* when a <code>ConsoleHandler</code> is initialized.
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* If a property is not defined, or if it has an invalid
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* value, a default is taken without an exception being thrown.
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*
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* <ul>
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*
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* <li><code>java.util.logging.ConsoleHandler.level</code> - specifies
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* the initial severity level threshold. Default value:
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* <code>Level.INFO</code>.</li>
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*
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* <li><code>java.util.logging.ConsoleHandler.filter</code> - specifies
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* the name of a Filter class. Default value: No Filter.</li>
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*
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* <li><code>java.util.logging.ConsoleHandler.formatter</code> - specifies
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* the name of a Formatter class. Default value:
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* <code>java.util.logging.SimpleFormatter</code>.</li>
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*
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* <li><code>java.util.logging.ConsoleHandler.encoding</code> - specifies
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* the name of the character encoding. Default value:
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* the default platform encoding.</li>
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*
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* </ul>
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*
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* @author Sascha Brawer (brawer@acm.org)
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*/
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public class ConsoleHandler
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extends StreamHandler
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{
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/**
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* Constructs a <code>StreamHandler</code> that publishes
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* log records to <code>System.err</code>. The initial
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* configuration is determined by the <code>LogManager</code>
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* properties described above.
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*/
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public ConsoleHandler()
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{
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super(System.err, "java.util.logging.ConsoleHandler", Level.INFO,
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/* formatter */ null, SimpleFormatter.class);
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}
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/**
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* Forces any data that may have been buffered to the underlying
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* output device, but does <i>not</i> close <code>System.err</code>.
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*
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* <p>In case of an I/O failure, the <code>ErrorManager</code>
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* of this <code>ConsoleHandler</code> will be informed, but the caller
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* of this method will not receive an exception.
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*/
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public void close()
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{
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flush();
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}
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/**
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* Publishes a <code>LogRecord</code> to the console, provided the
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* record passes all tests for being loggable.
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*
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* <p>Most applications do not need to call this method directly.
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* Instead, they will use use a <code>Logger</code>, which will
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* create LogRecords and distribute them to registered handlers.
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*
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* <p>In case of an I/O failure, the <code>ErrorManager</code>
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* of this <code>SocketHandler</code> will be informed, but the caller
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* of this method will not receive an exception.
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*
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* <p>The GNU implementation of <code>ConsoleHandler.publish</code>
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* calls flush() for every request to publish a record, so
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* they appear immediately on the console.
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*
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* @param record the log event to be published.
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*/
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public void publish(LogRecord record)
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{
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super.publish(record);
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flush();
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}
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}
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