001 /*
002 * Copyright 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.convert.conversion;
017
018 import org.apache.commons.convert.ConversionFactory;
019 import org.apache.commons.convert.Converter;
020
021 /**
022 * Conversion from Number to Integer using <code>intValue()</code>.
023 *
024 * @author Stephen Colebourne
025 * @version $Id: NumberToIntegerConversionFactory.java 155441 2005-02-26 13:19:22Z dirkv $
026 * @since 1.0
027 */
028 public class NumberToIntegerConversionFactory extends AbstractConversionFactory {
029
030 /** Singleton instance of this factory */
031 public static final ConversionFactory INSTANCE = new NumberToIntegerConversionFactory();
032
033 /**
034 * Restricted constructor.
035 */
036 protected NumberToIntegerConversionFactory() {
037 super(Number.class, Integer.class);
038 }
039
040 //-----------------------------------------------------------------------
041 /**
042 * Convert the non-null Number to an Integer using <code>intValue()</code>.
043 *
044 * @param value the input value to be converted, pre-checked to not be null
045 * @param converter the converter being used, not null
046 * @return the converted value
047 * @throws RuntimeException if conversion fails
048 */
049 protected Object convertValue(Object value, Converter converter) {
050 return new Integer(((Number) value).intValue());
051 }
052
053 }