org.milyn.csv.CSVRecordParser Maven / Gradle / Ivy
/*
* Milyn - Copyright (C) 2006 - 2010
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License (version 2.1) as published by the Free Software
* Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* See the GNU Lesser General Public License for more details:
* http://www.gnu.org/licenses/lgpl.txt
*/
package org.milyn.csv;
import java.io.IOException;
import java.io.Reader;
import java.util.Arrays;
import java.util.List;
import org.milyn.flatfile.variablefield.VariableFieldRecordParser;
import org.xml.sax.InputSource;
/**
* CSV record parser.
*
* @author [email protected]
*/
public class CSVRecordParser extends VariableFieldRecordParser {
private au.com.bytecode.opencsv.CSVReader csvLineReader;
/**
* {@inheritDoc}
*/
public void setDataSource(InputSource source) {
Reader reader = source.getCharacterStream();
if (reader == null) {
throw new IllegalStateException(
"Invalid InputSource type supplied to CSVRecordParser. Must contain a Reader instance.");
}
// Create the CSV line reader...
T factory = getFactory();
csvLineReader = new au.com.bytecode.opencsv.CSVReader(reader, factory.getSeparator(), factory.getQuoteChar());
}
/**
* {@inheritDoc}
*/
@Override
public List nextRecordFieldValues() throws IOException {
String[] csvRecord = csvLineReader.readNext();
if (csvRecord == null) {
return null;
}
return Arrays.asList(csvRecord);
}
@Override
protected void validateHeader(List headers) {
// For backward compatibility with pre v1.5....
try {
super.validateHeader(headers);
} catch (IOException e) {
throw new CSVHeaderValidationException(getFactory().getRecordMetaData().getFieldNames(), headers);
}
}
}