com.baulsupp.kolja.log.viewer.format.JodaFormat.java Source code

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Here is the source code for com.baulsupp.kolja.log.viewer.format.JodaFormat.java

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/**
 * Copyright (c) 2002-2007 Yuri Schimke. All Rights Reserved.
 * 
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 * 
 * This library 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package com.baulsupp.kolja.log.viewer.format;

import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

public class JodaFormat implements OutputFormat {
    private static final long serialVersionUID = 3985384107578154763L;

    private transient DateTimeFormatter formatter;

    private String pattern;

    public JodaFormat(String pattern) {
        this.pattern = pattern;
    }

    public String format(Object value) {
        if (value == null) {
            return null;
        }

        if (formatter == null) {
            formatter = DateTimeFormat.forPattern(pattern);
        }

        return formatter.print((DateTime) value);
    }
}