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Diffstat (limited to 'libjava/java/util/logging/SimpleFormatter.java')
-rw-r--r-- | libjava/java/util/logging/SimpleFormatter.java | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/libjava/java/util/logging/SimpleFormatter.java b/libjava/java/util/logging/SimpleFormatter.java new file mode 100644 index 0000000..8a95638 --- /dev/null +++ b/libjava/java/util/logging/SimpleFormatter.java @@ -0,0 +1,120 @@ +/* SimpleFormatter.java + -- a class for formatting log records into short human-readable messages + +Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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; + +import java.util.Date; +import java.text.DateFormat; + +/** + * A <code>SimpleFormatter</code> formats log records into + * short human-readable messages, typically one or two lines. + * + * @author Sascha Brawer (brawer@acm.org) + */ +public class SimpleFormatter + extends Formatter +{ + /** + * Constructs a SimpleFormatter. + */ + public SimpleFormatter() + { + } + + + /** + * An instance of a DateFormatter that is used for formatting + * the time of a log record into a human-readable string, + * according to the rules of the current locale. The value + * is set after the first invocation of format, since it is + * common that a JVM will instantiate a SimpleFormatter without + * ever using it. + */ + private DateFormat dateFormat; + + /** + * The character sequence that is used to separate lines in the + * generated stream. Somewhat surprisingly, the Sun J2SE 1.4 + * reference implementation always uses UNIX line endings, even on + * platforms that have different line ending conventions (i.e., + * DOS). The GNU implementation does not replicate this bug. + * + * @see Sun bug parade, bug #4462871, + * "java.util.logging.SimpleFormatter uses hard-coded line separator". + */ + static final String lineSep = System.getProperty("line.separator"); + + + /** + * Formats a log record into a String. + * + * @param the log record to be formatted. + * + * @return a short human-readable message, typically one or two + * lines. Lines are separated using the default platform line + * separator. + * + * @throws NullPointerException if <code>record</code> + * is <code>null</code>. + */ + public String format(LogRecord record) + { + StringBuffer buf = new StringBuffer(180); + + if (dateFormat == null) + dateFormat = DateFormat.getDateTimeInstance(); + + buf.append(dateFormat.format(new Date(record.getMillis()))); + buf.append(' '); + buf.append(record.getLoggerName()); + buf.append(lineSep); + + buf.append(record.getLevel()); + buf.append(": "); + buf.append(formatMessage(record)); + + buf.append(lineSep); + + return buf.toString(); + } +} |