org.databene.formats.fixedwidth.FixedWidthLineParser Maven / Gradle / Ivy
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'Databene Formats' is an open source software library for supporting
data file and other formats like CSV, fixed width files, XLS, Properties and Regex.
It is designed for multithreaded use and high performance.
/*
* Copyright (C) 2011-2014 Volker Bergmann ([email protected]).
* All rights reserved.
*
* 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.databene.formats.fixedwidth;
import java.text.ParseException;
import org.databene.commons.StringUtil;
import org.databene.commons.format.PadFormat;
/**
* Parses a line of a flat file.
* Created: 22.02.2010 08:06:41
* @since 0.5.0
* @author Volker Bergmann
*/
public class FixedWidthLineParser {
private PadFormat[] formats;
public FixedWidthLineParser(PadFormat[] formats) {
this.formats = formats.clone();
}
public String[] parse(String line) throws ParseException {
String[] cells = new String[formats.length];
int offset = 0;
if (StringUtil.isEmpty(line))
return new String[0];
else {
for (int i = 0; i < formats.length; i++) {
PadFormat format = formats[i];
String cell = line.substring(offset, Math.min(offset + format.getLength(), line.length()));
cells[i] = (String) format.parseObject(cell);
offset += format.getLength();
}
return cells;
}
}
}