/*
* Copyright 2002-2012 the original author or authors.
*
* 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.springframework.core.convert.support;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.ConditionalConverter;
import org.springframework.core.convert.converter.Converter;
import org.springframework.util.ClassUtils;
/**
* Calls {@link Enum#name()} to convert a source Enum to a String. This converter will
* not match enums with interfaces that can be converterd.
* @author Keith Donald
* @author Phillip Webb
* @since 2.0
*/
final class EnumToStringConverter implements Converter<Enum<?>, String>, ConditionalConverter {
private final ConversionService conversionService;
public EnumToStringConverter(ConversionService conversionService) {
this.conversionService = conversionService;
}
public boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType) {
for (Class<?> interfaceType : ClassUtils.getAllInterfacesForClass(sourceType.getType())) {
if (conversionService.canConvert(TypeDescriptor.valueOf(interfaceType), targetType)) {
return false;
}
}
return true;
}
public String convert(Enum<?> source) {
return source.name();
}
}