001    /*
002     *  Copyright 2003-2004 The Apache Software Foundation
003     *
004     *  Licensed under the Apache License, Version 2.0 (the "License");
005     *  you may not use this file except in compliance with the License.
006     *  You may obtain a copy of the License at
007     *
008     *      http://www.apache.org/licenses/LICENSE-2.0
009     *
010     *  Unless required by applicable law or agreed to in writing, software
011     *  distributed under the License is distributed on an "AS IS" BASIS,
012     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     *  See the License for the specific language governing permissions and
014     *  limitations under the License.
015     */
016    package org.apache.commons.convert1.format;
017    
018    
019    import org.apache.commons.convert1.ConversionException;
020    import org.apache.commons.convert1.Converter;
021    
022    import java.text.Format;
023    
024    /**
025     * java.text.Format.format(Object); String based converter.
026     *
027     * @author Henri Yandell
028     * @version $Id: FormatConverter.java 155441 2005-02-26 13:19:22Z dirkv $
029     * @since 0.1
030     */
031    
032    public final class FormatConverter implements Converter {
033    
034        private Format format;
035    
036        public FormatConverter(Format format) {
037            this.format = format;
038        }
039    
040        /**
041         * Format the specified input object into a String
042         *
043         * @param type Data type to which this value should be converted
044         * @param value The input value to be converted
045         *
046         * @exception ConversionException if conversion cannot be performed
047         *  successfully
048         */
049        public Object convert(Class type, Object value) {
050            if(type != String.class) {
051                throw new ConversionException("FormatConverter must create Strings. ");
052            }
053            return this.format.format(value);
054        }
055    
056    
057    }