001/* 002 * Copyright 2002-2014 the original author or authors. 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 * https://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 017package org.springframework.core.convert.support; 018 019import java.util.Set; 020 021import org.springframework.core.convert.converter.Converter; 022import org.springframework.core.convert.converter.ConverterFactory; 023import org.springframework.core.convert.converter.ConverterRegistry; 024import org.springframework.core.convert.converter.GenericConverter; 025 026/** 027 * A factory for common {@link org.springframework.core.convert.ConversionService} 028 * configurations. 029 * 030 * @author Keith Donald 031 * @author Juergen Hoeller 032 * @author Chris Beams 033 * @since 3.0 034 */ 035public abstract class ConversionServiceFactory { 036 037 /** 038 * Register the given Converter objects with the given target ConverterRegistry. 039 * @param converters the converter objects: implementing {@link Converter}, 040 * {@link ConverterFactory}, or {@link GenericConverter} 041 * @param registry the target registry 042 */ 043 public static void registerConverters(Set<?> converters, ConverterRegistry registry) { 044 if (converters != null) { 045 for (Object converter : converters) { 046 if (converter instanceof GenericConverter) { 047 registry.addConverter((GenericConverter) converter); 048 } 049 else if (converter instanceof Converter<?, ?>) { 050 registry.addConverter((Converter<?, ?>) converter); 051 } 052 else if (converter instanceof ConverterFactory<?, ?>) { 053 registry.addConverterFactory((ConverterFactory<?, ?>) converter); 054 } 055 else { 056 throw new IllegalArgumentException("Each converter object must implement one of the " + 057 "Converter, ConverterFactory, or GenericConverter interfaces"); 058 } 059 } 060 } 061 } 062 063}