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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/util/logging/ConsoleHandler.java
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+/* 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();
+ }
+}