DateConverter.java

/*
 * $Id: RequestUtils.java 394468 2006-04-16 12:16:03Z tmjee $
 *
 * Copyright 2006 The Apache Software Foundation.
 *
 * 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 org.qi4j.library.struts2.example.converters;

import org.apache.struts2.util.StrutsTypeConverter;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;

public class DateConverter
    extends StrutsTypeConverter
{
    @Override
    public final Object convertFromString( Map context, String[] values, Class toClass )
    {
        if( values != null && values.length > 0 && values[ 0 ] != null && values[ 0 ].length() > 0 )
        {
            SimpleDateFormat sdf = new SimpleDateFormat( "yyyy/MM/dd" );
            try
            {
                return sdf.parse( values[ 0 ] );
            }
            catch( ParseException e )
            {
                throw new IllegalArgumentException( "Parse [" + values[ 0 ] + "] do date fail.", e );
            }
        }
        return null;
    }

    @Override
    public String convertToString( Map context, Object o )
    {
        if( o instanceof Date )
        {
            SimpleDateFormat sdf = new SimpleDateFormat( "yyyy/MM/dd" );
            return sdf.format( (Date) o );
        }
        return "";
    }
}