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https://issues.apache.org/jira/browse/CSV-110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13960407#comment-13960407
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Gary Gregory commented on CSV-110:
----------------------------------
Hello Gabriel:
I think the API can take care of simple cases like this already. Please the
unit test in {{org.apache.commons.csv.CSVParserTest}} I just added to trunk.
It seems to me that {{parser.getRecords().get(0);}} is sweet and short:
{code:java}
@Test
public void testGetOneLine() throws IOException {
final CSVParser parser = CSVParser.parse(CSV_INPUT_1,
CSVFormat.DEFAULT);
final CSVRecord record = parser.getRecords().get(0);
assertArrayEquals(RESULT[0], record.values());
parser.close();
}
{code}
If you want to use the Deque's {{getFirst()}} API, you can now do so:
{code:java}
@Test
public void testGetOneLineCustomCollection() throws IOException {
final CSVParser parser = CSVParser.parse(CSV_INPUT_1,
CSVFormat.DEFAULT);
final CSVRecord record = parser.getRecords(new
LinkedList<CSVRecord>()).getFirst();
assertArrayEquals(RESULT[0], record.values());
parser.close();
}
{code}
> Add ability to parse single lines
> ---------------------------------
>
> Key: CSV-110
> URL: https://issues.apache.org/jira/browse/CSV-110
> Project: Commons CSV
> Issue Type: New Feature
> Reporter: Gabriel Reid
> Attachments: CSV-110.patch
>
>
> Due to the iterator-based API of CSVParser, there is currently no simple and
> convenient way to parse single lines of CSV-formatted data. The intention of
> this ticket is to add something along the lines of the following:
> {code}
> CSVLineParser lineParser = new CSVLineParser(csvFormat);
> String singleLine = "a,b,c";
> CSVRecord singleRecord lineParser.parseLine(singleLine);
> {code}
> The use case of parsing single lines comes up very often in terms of
> distributed batch processing scenarios (i.e. Hadoop jobs), and CSV-style
> formats are also regularly used in such scenarios. Currently, projects are
> often forced to build their own ad-hoc CSV parsing solutions, so adding the
> ability to parse single lines to commons-csv would be very useful to these
> projects, as well as anyone doing parsing based on input that isn't necessary
> in the form of a single stream.
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