com.landawn.abacus.util

Class CSVUtil

java.lang.Object

com.landawn.abacus.util.CSVUtil

public final class CSVUtil
extends Object

Since:

0.8

Author:

Haiyang Li

Field Summary

Fields

Modifier and Type	Field and Description
static Function<String,String[]>	CSV_HEADER_PARSER
static Function<String,String[]>	CSV_HEADER_PARSER_BY_SPLITTER
static BiConsumer<String[],String>	CSV_LINE_PARSER
static BiConsumer<String[],String>	CSV_LINE_PARSER_BY_SPLITTER

Constructor Summary

Constructors

Constructor and Description
CSVUtil()

Method Summary

Modifier and Type	Method and Description
static DataSet	loadCSV(Class<?> entityClass, File csvFile)
static DataSet	loadCSV(Class<?> entityClass, File csvFile, Collection<String> selectColumnNames)
static DataSet	loadCSV(Class<?> entityClass, File csvFile, Collection<String> selectColumnNames, long offset, long count)
static <E extends Exception> DataSet	loadCSV(Class<?> entityClass, File csvFile, Collection<String> selectColumnNames, long offset, long count, Throwables.Predicate<String[],E> filter) Load the data from CSV.
static DataSet	loadCSV(Class<?> entityClass, InputStream csvInputStream)
static DataSet	loadCSV(Class<?> entityClass, InputStream csvInputStream, Collection<String> selectColumnNames)
static DataSet	loadCSV(Class<?> entityClass, InputStream csvInputStream, Collection<String> selectColumnNames, long offset, long count)
static <E extends Exception> DataSet	loadCSV(Class<?> entityClass, InputStream csvInputStream, Collection<String> selectColumnNames, long offset, long count, Throwables.Predicate<String[],E> filter) Load the data from CSV.
static DataSet	loadCSV(Class<?> entityClass, Reader csvReader)
static DataSet	loadCSV(Class<?> entityClass, Reader csvReader, Collection<String> selectColumnNames)
static DataSet	loadCSV(Class<?> entityClass, Reader csvReader, Collection<String> selectColumnNames, long offset, long count)
static <E extends Exception> DataSet	loadCSV(Class<?> entityClass, Reader csvReader, Collection<String> selectColumnNames, long offset, long count, Throwables.Predicate<String[],E> filter) Load the data from CSV.
static DataSet	loadCSV(File csvFile)
static DataSet	loadCSV(File csvFile, Collection<String> selectColumnNames)
static DataSet	loadCSV(File csvFile, Collection<String> selectColumnNames, long offset, long count)
static <E extends Exception> DataSet	loadCSV(File csvFile, Collection<String> selectColumnNames, long offset, long count, Throwables.Predicate<String[],E> filter) Load the data from CSV.
static DataSet	loadCSV(File csvFile, List<? extends com.landawn.abacus.type.Type> columnTypeList)
static DataSet	loadCSV(File csvFile, long offset, long count, List<? extends com.landawn.abacus.type.Type> columnTypeList)
static DataSet	loadCSV(File csvFile, long offset, long count, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
static <E extends Exception> DataSet	loadCSV(File csvFile, long offset, long count, Throwables.Predicate<String[],E> filter, List<? extends com.landawn.abacus.type.Type> columnTypeList) Load the data from CSV.
static <E extends Exception> DataSet	loadCSV(File csvFile, long offset, long count, Throwables.Predicate<String[],E> filter, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap) Load the data from CSV.
static DataSet	loadCSV(File csvFile, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
static DataSet	loadCSV(InputStream csvInputStream)
static DataSet	loadCSV(InputStream csvInputStream, Collection<String> selectColumnNames)
static DataSet	loadCSV(InputStream csvInputStream, Collection<String> selectColumnNames, long offset, long count)
static <E extends Exception> DataSet	loadCSV(InputStream csvInputStream, Collection<String> selectColumnNames, long offset, long count, Throwables.Predicate<String[],E> filter) Load the data from CSV.
static DataSet	loadCSV(InputStream csvInputStream, List<? extends com.landawn.abacus.type.Type> columnTypeList)
static DataSet	loadCSV(InputStream csvInputStream, long offset, long count, List<? extends com.landawn.abacus.type.Type> columnTypeList)
static DataSet	loadCSV(InputStream csvInputStream, long offset, long count, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
static <E extends Exception> DataSet	loadCSV(InputStream csvInputStream, long offset, long count, Throwables.Predicate<String[],E> filter, List<? extends com.landawn.abacus.type.Type> columnTypeList) Load the data from CSV.
static <E extends Exception> DataSet	loadCSV(InputStream csvInputStream, long offset, long count, Throwables.Predicate<String[],E> filter, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap) Load the data from CSV.
static DataSet	loadCSV(InputStream csvInputStream, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
static DataSet	loadCSV(Reader csvReader)
static DataSet	loadCSV(Reader csvReader, Collection<String> selectColumnNames)
static DataSet	loadCSV(Reader csvReader, Collection<String> selectColumnNames, long offset, long count)
static <E extends Exception> DataSet	loadCSV(Reader csvReader, Collection<String> selectColumnNames, long offset, long count, Throwables.Predicate<String[],E> filter) Load the data from CSV.
static DataSet	loadCSV(Reader csvReader, List<? extends com.landawn.abacus.type.Type> columnTypeList)
static DataSet	loadCSV(Reader csvReader, long offset, long count, List<? extends com.landawn.abacus.type.Type> columnTypeList)
static DataSet	loadCSV(Reader csvReader, long offset, long count, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
static <E extends Exception> DataSet	loadCSV(Reader csvReader, long offset, long count, Throwables.Predicate<String[],E> filter, List<? extends com.landawn.abacus.type.Type> columnTypeList) Load the data from CSV.
static <E extends Exception> DataSet	loadCSV(Reader csvReader, long offset, long count, Throwables.Predicate<String[],E> filter, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap) Load the data from CSV.
static DataSet	loadCSV(Reader csvReader, Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
static void	resetCSVHeaderParser()
static void	resetCSVLineParser()
static void	setCSVHeaderParser(Function<String,String[]> parser)
static void	setCSVLineParser(BiConsumer<String[],String> parser)

Methods inherited from class java.lang.Object

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

Field Detail

CSV_HEADER_PARSER_BY_SPLITTER

public static final Function<String,String[]> CSV_HEADER_PARSER_BY_SPLITTER

CSV_LINE_PARSER_BY_SPLITTER

public static final BiConsumer<String[],String> CSV_LINE_PARSER_BY_SPLITTER

CSV_HEADER_PARSER

public static final Function<String,String[]> CSV_HEADER_PARSER

CSV_LINE_PARSER

public static final BiConsumer<String[],String> CSV_LINE_PARSER

Constructor Detail

CSVUtil

public CSVUtil()

Method Detail

setCSVHeaderParser

public static void setCSVHeaderParser(Function<String,String[]> parser)

setCSVLineParser

public static void setCSVLineParser(BiConsumer<String[],String> parser)

resetCSVHeaderParser

public static void resetCSVHeaderParser()

resetCSVLineParser

public static void resetCSVLineParser()

loadCSV

public static DataSet loadCSV(File csvFile)
                       throws UncheckedIOException

Parameters:

csvFile -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(File csvFile,
                              Collection<String> selectColumnNames)
                       throws UncheckedIOException

Parameters:

csvFile -

selectColumnNames -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(File csvFile,
                              Collection<String> selectColumnNames,
                              long offset,
                              long count)
                       throws UncheckedIOException

Parameters:

csvFile -

selectColumnNames -

offset -

count -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(File csvFile,
                                                    Collection<String> selectColumnNames,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvFile -

selectColumnNames -

offset -

count -

filter -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(InputStream csvInputStream)
                       throws UncheckedIOException

Parameters:

csvInputStream -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(InputStream csvInputStream,
                              Collection<String> selectColumnNames)
                       throws UncheckedIOException

Parameters:

csvInputStream -

selectColumnNames -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(InputStream csvInputStream,
                              Collection<String> selectColumnNames,
                              long offset,
                              long count)
                       throws UncheckedIOException

Parameters:

csvInputStream -

selectColumnNames -

offset -

count -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(InputStream csvInputStream,
                                                    Collection<String> selectColumnNames,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvInputStream -

selectColumnNames -

offset -

count -

filter -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(Reader csvReader)
                       throws UncheckedIOException

Parameters:

csvReader -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Reader csvReader,
                              Collection<String> selectColumnNames)
                       throws UncheckedIOException

Parameters:

csvReader -

selectColumnNames -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Reader csvReader,
                              Collection<String> selectColumnNames,
                              long offset,
                              long count)
                       throws UncheckedIOException

Parameters:

csvReader -

selectColumnNames -

offset -

count -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(Reader csvReader,
                                                    Collection<String> selectColumnNames,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvReader -

selectColumnNames -

offset -

count -

filter -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              File csvFile)
                       throws UncheckedIOException

Parameters:

entityClass -

csvFile -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              File csvFile,
                              Collection<String> selectColumnNames)
                       throws UncheckedIOException

Parameters:

entityClass -

csvFile -

selectColumnNames -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              File csvFile,
                              Collection<String> selectColumnNames,
                              long offset,
                              long count)
                       throws UncheckedIOException

Parameters:

entityClass -

csvFile -

selectColumnNames -

offset -

count -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(Class<?> entityClass,
                                                    File csvFile,
                                                    Collection<String> selectColumnNames,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

entityClass -

csvFile -

selectColumnNames -

offset -

count -

filter -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              InputStream csvInputStream)
                       throws UncheckedIOException

Parameters:

entityClass -

csvInputStream -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              InputStream csvInputStream,
                              Collection<String> selectColumnNames)
                       throws UncheckedIOException

Parameters:

entityClass -

csvInputStream -

selectColumnNames -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              InputStream csvInputStream,
                              Collection<String> selectColumnNames,
                              long offset,
                              long count)
                       throws UncheckedIOException

Parameters:

entityClass -

csvInputStream -

selectColumnNames -

offset -

count -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(Class<?> entityClass,
                                                    InputStream csvInputStream,
                                                    Collection<String> selectColumnNames,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

entityClass -

csvInputStream -

selectColumnNames -

offset -

count -

filter -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              Reader csvReader)
                       throws UncheckedIOException

Parameters:

entityClass -

csvReader -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              Reader csvReader,
                              Collection<String> selectColumnNames)
                       throws UncheckedIOException

Parameters:

entityClass -

csvReader -

selectColumnNames -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Class<?> entityClass,
                              Reader csvReader,
                              Collection<String> selectColumnNames,
                              long offset,
                              long count)
                       throws UncheckedIOException

Parameters:

entityClass -

csvReader -

selectColumnNames -

offset -

count -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(Class<?> entityClass,
                                                    Reader csvReader,
                                                    Collection<String> selectColumnNames,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

entityClass -

csvReader -

selectColumnNames -

offset -

count -

filter -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(File csvFile,
                              Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                       throws UncheckedIOException

Parameters:

csvFile -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(File csvFile,
                              long offset,
                              long count,
                              Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                       throws UncheckedIOException

Parameters:

csvFile -

offset -

count -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(File csvFile,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter,
                                                    Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvFile -

offset -

count -

filter -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(InputStream csvInputStream,
                              Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                       throws UncheckedIOException

Parameters:

csvInputStream -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(InputStream csvInputStream,
                              long offset,
                              long count,
                              Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                       throws UncheckedIOException

Parameters:

csvInputStream -

offset -

count -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(InputStream csvInputStream,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter,
                                                    Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvInputStream -

offset -

count -

filter -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(Reader csvReader,
                              Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                       throws UncheckedIOException

Parameters:

csvReader -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(Reader csvReader,
                              long offset,
                              long count,
                              Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                       throws UncheckedIOException

Parameters:

csvReader -

offset -

count -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(Reader csvReader,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter,
                                                    Map<String,? extends com.landawn.abacus.type.Type> columnTypeMap)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvReader -

offset -

count -

filter -

columnTypeMap -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(File csvFile,
                              List<? extends com.landawn.abacus.type.Type> columnTypeList)
                       throws UncheckedIOException

Parameters:

csvFile -

columnTypeList -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(File csvFile,
                              long offset,
                              long count,
                              List<? extends com.landawn.abacus.type.Type> columnTypeList)
                       throws UncheckedIOException

Parameters:

csvFile -

offset -

count -

columnTypeList -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(File csvFile,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter,
                                                    List<? extends com.landawn.abacus.type.Type> columnTypeList)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvFile -

offset -

count -

filter -

columnTypeList - set the column type to null to skip the column in CSV.

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(InputStream csvInputStream,
                              List<? extends com.landawn.abacus.type.Type> columnTypeList)
                       throws UncheckedIOException

Parameters:

csvInputStream -

columnTypeList -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static DataSet loadCSV(InputStream csvInputStream,
                              long offset,
                              long count,
                              List<? extends com.landawn.abacus.type.Type> columnTypeList)
                       throws UncheckedIOException

Parameters:

csvInputStream -

offset -

count -

columnTypeList -

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

loadCSV

public static <E extends Exception> DataSet loadCSV(InputStream csvInputStream,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter,
                                                    List<? extends com.landawn.abacus.type.Type> columnTypeList)
                                             throws E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvInputStream -

offset -

count -

filter -

columnTypeList - set the column type to null to skip the column in CSV.

Returns:

Throws:

E - the e

E extends Exception

loadCSV

public static DataSet loadCSV(Reader csvReader,
                              List<? extends com.landawn.abacus.type.Type> columnTypeList)

Parameters:

csvReader -

columnTypeList -

Returns:

loadCSV

public static DataSet loadCSV(Reader csvReader,
                              long offset,
                              long count,
                              List<? extends com.landawn.abacus.type.Type> columnTypeList)

Parameters:

csvReader -

offset -

count -

columnTypeList -

Returns:

loadCSV

public static <E extends Exception> DataSet loadCSV(Reader csvReader,
                                                    long offset,
                                                    long count,
                                                    Throwables.Predicate<String[],E> filter,
                                                    List<? extends com.landawn.abacus.type.Type> columnTypeList)
                                             throws UncheckedIOException,
                                                    E extends Exception

Load the data from CSV.

Type Parameters:

E -

Parameters:

csvReader -

offset -

count -

filter -

columnTypeList - set the column type to null to skip the column in CSV.

Returns:

Throws:

UncheckedIOException - the unchecked IO exception

E - the e

E extends Exception