src/org/hsqldb/lib/BasicTextJdkLogFormatter.java

/* Copyright (c) 2001-2010, The HSQL Development Group
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


package org.hsqldb.lib;

import java.io.StringWriter;
import java.io.PrintWriter;
import java.util.logging.Formatter;
import java.util.logging.LogRecord;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * An implementation of java.util.logging.Formatter very close to
 * SimpleFormatter.
 *
 * The features here are optional timestamping, sortable numeric time stamp
 * text, and no indication of invoking source code location (logger ID,
 * class name, method name, etc.).
 *
 * @see Formatter
 * @see SimpleFormatter
 * @author Blaine Simpson (blaine dot simpson at admc dot com)
 */
public class BasicTextJdkLogFormatter extends Formatter {
    protected boolean withTime = true;
    public static String LS = System.getProperty("line.separator");

    protected SimpleDateFormat sdf =
            new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");


    public BasicTextJdkLogFormatter(boolean withTime) {
        this.withTime = withTime;
    }

    public BasicTextJdkLogFormatter() {
        // Intentionally empty
    }

    public String format(LogRecord record) {
        StringBuilder sb = new StringBuilder();
        if (withTime) {
            sb.append(sdf.format(new Date(record.getMillis())) + "  ");
        }
        sb.append(record.getLevel() + "  " + formatMessage(record));
        if (record.getThrown() != null) {
            StringWriter sw = new StringWriter();
            record.getThrown().printStackTrace(new PrintWriter(sw));
            sb.append(LS + sw);
        }
        return sb.toString() + LS;
        // This uses platform-specific line-separator, the same as
        // SimpleLogger does.
    }
}