org.spf4j.io

Class Csv

java.lang.Object

org.spf4j.io.Csv

@ParametersAreNonnullByDefault
public final class Csv
extends Object

Supports CSV format as described at: https://en.wikipedia.org/wiki/Comma-separated_values. either of \n \r or \r\n are valid end of line delimiters why another implementation? because I need one that is as fast as possible, and as flexible as possible.

Author:

zoly

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Csv.CsvHandler<T>
static interface	Csv.CsvMapHandler<T>
static interface	Csv.CsvRowHandler<T>

Field Summary

Fields

Modifier and Type	Field and Description
static int	UTF_BOM http://unicode.org/faq/utf_bom.html#BOM

Method Summary

Methods

Modifier and Type	Method and Description
static <T> T	read(File file, Charset charset, Csv.CsvHandler<T> handler)
static <T> T	read(File file, Charset charset, Csv.CsvMapHandler<T> handler)
static <T> T	read(Reader preader, Csv.CsvHandler<T> handler)
static <T> T	read(Reader preader, Csv.CsvMapHandler<T> handler)
static int	readCsvElement(Reader reader, StringBuilder addElemTo) returns next character.
static <T> T	readNoBom(PushbackReader preader, Csv.CsvHandler<T> handler) reads CSV format until EOF of reader.
static <T> T	readRow(Reader reader, Csv.CsvRowHandler<T> handler)
static CharSequence	toCsvElement(CharSequence elem)
static void	writeCsvElement(CharSequence elem, Writer writer)
static void	writeCsvRow(Writer writer, Iterable<?> elems)
static void	writeCsvRow(Writer writer, Object... elems)

Methods inherited from class java.lang.Object

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

Field Detail

UTF_BOM

public static final int UTF_BOM

http://unicode.org/faq/utf_bom.html#BOM

See Also:

Constant Field Values

Method Detail

writeCsvRow

public static void writeCsvRow(Writer writer,
               Object... elems)
                        throws IOException

Throws:

IOException

writeCsvRow

public static void writeCsvRow(Writer writer,
               Iterable<?> elems)
                        throws IOException

Throws:

IOException

read

public static <T> T read(File file,
         Charset charset,
         Csv.CsvMapHandler<T> handler)
              throws IOException

Throws:

IOException

read

public static <T> T read(File file,
         Charset charset,
         Csv.CsvHandler<T> handler)
              throws IOException

Throws:

IOException

read

public static <T> T read(Reader preader,
         Csv.CsvMapHandler<T> handler)
              throws IOException

Throws:

IOException

readRow

public static <T> T readRow(Reader reader,
            Csv.CsvRowHandler<T> handler)
                 throws IOException

Throws:

IOException

read

public static <T> T read(Reader preader,
         Csv.CsvHandler<T> handler)
              throws IOException

Throws:

IOException

readNoBom

public static <T> T readNoBom(PushbackReader preader,
              Csv.CsvHandler<T> handler)
                   throws IOException

reads CSV format until EOF of reader.

Type Parameters:

T -

Parameters:

preader -

handler -

Returns:

Throws:

IOException

writeCsvElement

public static void writeCsvElement(CharSequence elem,
                   Writer writer)
                            throws IOException

Throws:

IOException

toCsvElement

public static CharSequence toCsvElement(CharSequence elem)

readCsvElement

@CheckReturnValue
public static int readCsvElement(Reader reader,
                                  StringBuilder addElemTo)
                          throws IOException

returns next character.

Parameters:

reader -

addElemTo -

Returns:

Throws:

IOException.

IOException