DateConverter.java

/*
 * Copyright (c) 2011 PonySDK
 *  Owners:
 *  Luciano Broussal  <luciano.broussal AT gmail.com>
 *  Mathieu Barbier   <mathieu.barbier AT gmail.com>
 *  Nicolas Ciaravola <nicolas.ciaravola.pro AT gmail.com>
 *
 *  WebSite:
 *  http://code.google.com/p/pony-sdk/
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.ponysdk.core.ui.form.dataconverter;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;

public class DateConverter implements DataConverter<String, Date> {

    private static final Logger log = LoggerFactory.getLogger(DateConverter.class);

    private final DateFormat dateFormat;

    public DateConverter() {
        this(DateFormat.getDateInstance());
    }

    public DateConverter(final DateFormat dateFormat) {
        this.dateFormat = dateFormat;
    }

    @Override
    public String from(final Date t) {
        if (t == null) return null;
        return dateFormat.format(t);
    }

    @Override
    public Date to(final String t) {
        try {
            return dateFormat.parse(t);
        } catch (final ParseException e) {
            log.error("cannot parse date", e);
        }
        return null;
    }

}