mirror of git://gcc.gnu.org/git/gcc.git
126 lines
4.6 KiB
Java
126 lines
4.6 KiB
Java
/* 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();
|
|
}
|
|
}
|