Class UnivocityUtils

java.lang.Object

org.aksw.commons.model.csvw.univocity.UnivocityUtils

public class UnivocityUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
UnivocityUtils()

Method Summary

Modifier and Type	Method	Description
static com.univocity.parsers.csv.CsvFormat	detectFormat(com.univocity.parsers.csv.CsvParser parser, Supplier<Reader> readerSupp)
static boolean	isDetectionNeeded(com.univocity.parsers.common.CommonParserSettings<?> settings)
static boolean	isDetectionNeeded(com.univocity.parsers.csv.CsvParserSettings settings)
static <T> Stream<T>	readCsvElements(Callable<? extends InputStream> inSupp, UnivocityParserFactory parserFactory, Function<com.univocity.parsers.common.AbstractParser<?>, T> extractElement)	Create a stream to a CSV file from a supplier of input streams
static Stream<com.univocity.parsers.common.record.Record>	readCsvRecords(Callable<? extends InputStream> inputStreamFactory, UnivocityParserFactory parserFactory)	Create a flowable to a CSV file via hadoop.
static Stream<String[]>	readCsvRows(Callable<? extends InputStream> inputStreamFactory, UnivocityParserFactory parserFactory)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

UnivocityUtils

public UnivocityUtils()

Method Details

isDetectionNeeded

public static boolean isDetectionNeeded(com.univocity.parsers.csv.CsvParserSettings settings)

isDetectionNeeded

public static boolean isDetectionNeeded(com.univocity.parsers.common.CommonParserSettings<?> settings)

detectFormat

public static com.univocity.parsers.csv.CsvFormat detectFormat(com.univocity.parsers.csv.CsvParser parser,
 Supplier<Reader> readerSupp)
                                                        throws IOException

Throws:

IOException

readCsvRecords

public static Stream<com.univocity.parsers.common.record.Record> readCsvRecords(Callable<? extends InputStream> inputStreamFactory,
 UnivocityParserFactory parserFactory)

Create a flowable to a CSV file via hadoop. Allows for retrieval of headers.

Parameters:

parserFactory - A factory for creating parsers over an input stream

path - A path to a csv file

fileSystem - The hadoop filesystem

Returns:

A cold flowable over the csv data

readCsvRows

public static Stream<String[]> readCsvRows(Callable<? extends InputStream> inputStreamFactory,
 UnivocityParserFactory parserFactory)

readCsvElements

public static <T> Stream<T> readCsvElements(Callable<? extends InputStream> inSupp,
 UnivocityParserFactory parserFactory,
 Function<com.univocity.parsers.common.AbstractParser<?>, T> extractElement)

Create a stream to a CSV file from a supplier of input streams

Parameters:

inSupp - A supplier of input streams

parserFactory - A factory for creating parsers over an input stream

Returns:

A cold flowable over the csv data