/*
* Copyright 2004 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 com.ancientprogramming.fixedformat4j.format.impl;
import com.ancientprogramming.fixedformat4j.format.AbstractFixedFormatter;
import com.ancientprogramming.fixedformat4j.format.FormatInstructions;
import com.ancientprogramming.fixedformat4j.annotation.Sign;
import org.apache.commons.lang.StringUtils;
/**
* Apply signing according to
*
* @author Jacob von Eyben www.ancientprogramming.com
* @since 1.1.0
*/
public abstract class AbstractNumberFormatter extends AbstractFixedFormatter {
public Object parse(String value, FormatInstructions instructions) {
Object result = null;
if (value != null) {
Sign signing = instructions.getFixedFormatNumberData().getSigning();
String rawString = signing.remove(value, instructions);
result = asObject(rawString, instructions);
}
return result;
}
public String format(Object value, FormatInstructions instructions) {
return instructions.getFixedFormatNumberData().getSigning().apply(asString(value, instructions), instructions);
}
public String stripSigningForPositiveAndZeroNumbers(String value) {
String sign = StringUtils.substring(value, 0, 1);
String unsignedValue = StringUtils.substring(value, 1);
String result = value;
if (StringUtils.isEmpty(unsignedValue) || "+".equals(sign)) {
result = unsignedValue;
}
return StringUtils.isEmpty(result) ? "0" : result;
}
}