/*

 * Copyright 2000-2006 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package java.util.logging;

import java.io.*;

import java.text.*;

import java.util.Date;

/**

 * Print a brief summary of the LogRecord in a human readable

 * format.  The summary will typically be 1 or 2 lines.

 *

 * @since 1.4

 */

public class SimpleFormatter extends Formatter {

    Date dat = new Date();

    private final static String format = "{0,date} {0,time}";

    private MessageFormat formatter;

    private Object args[] = new Object[1];

    // Line separator string.  This is the value of the line.separator

    // property at the moment that the SimpleFormatter was created.

    private String lineSeparator = java.security.AccessController.doPrivileged(

               new sun.security.action.GetPropertyAction("line.separator"));

    /**

     * Format the given LogRecord.

     * <p>

     * This method can be overridden in a subclass.

     * It is recommended to use the {@link Formatter#formatMessage}

     * convenience method to localize and format the message field.

     *

     * @param record the log record to be formatted.

     * @return a formatted log record

     */

    public synchronized String format(LogRecord record) {

        StringBuffer sb = new StringBuffer();

        // Minimize memory allocations here.

        dat.setTime(record.getMillis());

        args[0] = dat;

        StringBuffer text = new StringBuffer();

        if (formatter == null) {

            formatter = new MessageFormat(format);

        }

        formatter.format(args, text, null);

        sb.append(text);

        sb.append(" ");

        if (record.getSourceClassName() != null) {

            sb.append(record.getSourceClassName());

        } else {

            sb.append(record.getLoggerName());

        }

        if (record.getSourceMethodName() != null) {

            sb.append(" ");

            sb.append(record.getSourceMethodName());

        }

        sb.append(lineSeparator);

        String message = formatMessage(record);

        sb.append(record.getLevel().getLocalizedName());

        sb.append(": ");

        sb.append(message);

        sb.append(lineSeparator);

        if (record.getThrown() != null) {

            try {

                StringWriter sw = new StringWriter();

                PrintWriter pw = new PrintWriter(sw);

                record.getThrown().printStackTrace(pw);

                pw.close();

                sb.append(sw.toString());

            } catch (Exception ex) {

            }

        }

        return sb.toString();

    }

}