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/*
 * Copyright 2011 Kevin Seim
 * 
 * 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.beanio.parser.fixedlength;

import org.beanio.parser.flat.FlatBeanDefinition;

/**
 * A FixedLengthRecordDefinition is used to parse and format fixed length
 * formatted beans.
 * 
 * @author Kevin Seim
 * @since 1.0
 */
public class FixedLengthBeanDefinition extends FlatBeanDefinition {

    private char filler = ' ';
    
    @Override
    public Object formatRecord(Object bean) {
        StringBuilder record = new StringBuilder();
        super.formatRecord(record, bean);
        return record.toString();
    }

    @Override
    protected void updateRecord(Object recordObject, int position, String text) {
        StringBuilder record = (StringBuilder) recordObject;
        
        int size = record.length();
        if (position == size) {
            record.append(text);
        }
        else if (position < size) {
            record.replace(position, position + text.length(), text);
        }
        else {
            for (int i=size, j=position; i