Initial revision

From-SVN: r102074

libjava/classpath/java/util/logging/SimpleFormatter.java

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+/* SimpleFormatter.java --
+   A class for formatting log records into short human-readable messages
+   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;
+
+import java.text.DateFormat;
+import java.util.Date;
+
+/**
+ * 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.getSourceClassName());
+    buf.append(' ');
+    buf.append(record.getSourceMethodName());
+    buf.append(lineSep);
+
+    buf.append(record.getLevel());
+    buf.append(": ");
+    buf.append(formatMessage(record));
+
+    buf.append(lineSep);
+
+    return buf.toString();
+  }
+}