1 /*
2 * Copyright 2004 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package com.ancientprogramming.fixedformat4j.format;
17
18 /**
19 * Handles default formatting and parsing based on FixedFormatAnnotation values.
20 *
21 * @author Jacob von Eyben - http://www.ancientprogramming.com
22 * @since 1.0.0
23 */
24 public abstract class AbstractFixedFormatter<T> implements FixedFormatter<T> {
25 public T parse(String value, FormatInstructions instructions) {
26 T result = null;
27 if (value != null) {
28 instructions.getFixedFormatNumberData();
29 result = asObject(instructions.getAlignment().remove(value, instructions.getPaddingChar()), instructions);
30 }
31 return result;
32 }
33
34 public String format(T value, FormatInstructions instructions) {
35 return instructions.getAlignment().apply(asString(value, instructions), instructions.getLength(), instructions.getPaddingChar());
36 }
37
38 public abstract T asObject(String string, FormatInstructions instructions);
39
40 public abstract String asString(T obj, FormatInstructions instructions);
41 }