org.springframework.core.convert.support.CharacterToNumberFactory Maven / Gradle / Ivy
/*
* Copyright 2002-2016 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
*
* https://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.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.util.NumberUtils;
/**
* Converts from a Character to any JDK-standard Number implementation.
*
* Support Number classes including Byte, Short, Integer, Float, Double, Long, BigInteger, BigDecimal. This class
* delegates to {@link NumberUtils#convertNumberToTargetClass(Number, Class)} to perform the conversion.
*
* @author Keith Donald
* @since 3.0
* @see java.lang.Byte
* @see java.lang.Short
* @see java.lang.Integer
* @see java.lang.Long
* @see java.math.BigInteger
* @see java.lang.Float
* @see java.lang.Double
* @see java.math.BigDecimal
* @see NumberUtils
*/
final class CharacterToNumberFactory implements ConverterFactory {
@Override
public Converter getConverter(Class targetType) {
return new CharacterToNumber<>(targetType);
}
private static final class CharacterToNumber implements Converter {
private final Class targetType;
public CharacterToNumber(Class targetType) {
this.targetType = targetType;
}
@Override
public T convert(Character source) {
return NumberUtils.convertNumberToTargetClass((short) source.charValue(), this.targetType);
}
}
}