org.apache.jena.atlas.io
Class IO

java.lang.Object
  org.apache.jena.atlas.io.IO

public class IO
extends Object

Field Summary

static String	encodingAscii
static String	encodingUTF8 Java name for UTF-8 encoding
static int	EOF
static int	UNSET

Constructor Summary

IO()

Method Summary

static Reader	asASCII(InputStream in) Create a unbuffered reader that uses ASCII encoding
static Writer	asASCII(OutputStream out) Create a writer that uses ASCII encoding
static BufferedReader	asBufferedUTF8(InputStream in) Create an buffered reader that uses UTF-8 encoding
static Writer	asBufferedUTF8(OutputStream out) Create a writer that uses UTF-8 encoding and is buffered.
static PrintWriter	asPrintWriterUTF8(OutputStream out) Create a print writer that uses UTF-8 encoding
static Reader	asUTF8(InputStream in) Create an unbuffered reader that uses UTF-8 encoding
static Writer	asUTF8(OutputStream out) Create a writer that uses UTF-8 encoding
static void	close(AWriter resource)
static void	close(Closeable resource)
static void	close(Closeable resource)
static void	close(IndentedWriter resource)
static void	closeSilent(AWriter resource)
static void	closeSilent(Closeable resource)
static void	closeSilent(Closeable resource)
static void	closeSilent(IndentedWriter resource)
static void	exception(IOException ex)
static void	exception(String msg, IOException ex)
static void	flush(AWriter out)
static void	flush(OutputStream out)
static void	flush(Writer out)
static InputStream	openFile(String filename) Open an input stream to a file.
static Reader	openFileASCII(String filename) Open an ASCII Reader for a file.
static InputStream	openFileEx(String filename) Open an input stream to a file; do not mask IOExceptions.
static Reader	openFileUTF8(String filename) Open a UTF8 Reader for a file.
static byte[]	readWholeFile(InputStream in)
static String	readWholeFileAsUTF8(InputStream in) Read a whole stream as UTF-8
static String	readWholeFileAsUTF8(String filename) Read a whole file as UTF-8
static String	uniqueFilename(String directory, String base, String ext)
static AWriter	wrap(Writer w) Wrap in a general writer interface
static AWriter	wrapASCII(OutputStream out) Wrap in a general writer interface
static AWriter	wrapUTF8(OutputStream out) Wrap in a general writer interface

Methods inherited from class java.lang.Object

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

Field Detail

EOF

public static final int EOF

See Also:

Constant Field Values

UNSET

public static final int UNSET

See Also:

Constant Field Values

encodingUTF8

public static final String encodingUTF8

Java name for UTF-8 encoding

See Also:

Constant Field Values

encodingAscii

public static final String encodingAscii

See Also:

Constant Field Values

Constructor Detail

IO

public IO()

Method Detail

openFile

public static InputStream openFile(String filename)

Open an input stream to a file. If the filename is null or "-", return System.in If the filename ends in .gz, wrap in GZIPInputStream

openFileEx

public static InputStream openFileEx(String filename)
                              throws IOException

Open an input stream to a file; do not mask IOExceptions. If the filename is null or "-", return System.in If the filename ends in .gz, wrap in GZIPInputStream

Parameters:

filename -

Throws:

FileNotFoundException

IOException

openFileUTF8

public static Reader openFileUTF8(String filename)

Open a UTF8 Reader for a file. If the filename is null or "-", use System.in If the filename ends in .gz, use GZIPInputStream

openFileASCII

public static Reader openFileASCII(String filename)

Open an ASCII Reader for a file. If the filename is null or "-", use System.in If the filename ends in .gz, use GZIPInputStream

asUTF8

public static Reader asUTF8(InputStream in)

Create an unbuffered reader that uses UTF-8 encoding

asASCII

public static Reader asASCII(InputStream in)

Create a unbuffered reader that uses ASCII encoding

asBufferedUTF8

public static BufferedReader asBufferedUTF8(InputStream in)

Create an buffered reader that uses UTF-8 encoding

asUTF8

public static Writer asUTF8(OutputStream out)

Create a writer that uses UTF-8 encoding

asASCII

public static Writer asASCII(OutputStream out)

Create a writer that uses ASCII encoding

asBufferedUTF8

public static Writer asBufferedUTF8(OutputStream out)

Create a writer that uses UTF-8 encoding and is buffered.

wrap

public static AWriter wrap(Writer w)

Wrap in a general writer interface

wrapUTF8

public static AWriter wrapUTF8(OutputStream out)

Wrap in a general writer interface

wrapASCII

public static AWriter wrapASCII(OutputStream out)

Wrap in a general writer interface

asPrintWriterUTF8

public static PrintWriter asPrintWriterUTF8(OutputStream out)

Create a print writer that uses UTF-8 encoding

close

public static void close(Closeable resource)

closeSilent

public static void closeSilent(Closeable resource)

close

public static void close(Closeable resource)

closeSilent

public static void closeSilent(Closeable resource)

close

public static void close(AWriter resource)

closeSilent

public static void closeSilent(AWriter resource)

close

public static void close(IndentedWriter resource)

closeSilent

public static void closeSilent(IndentedWriter resource)

exception

public static void exception(IOException ex)

exception

public static void exception(String msg,
                             IOException ex)

flush

public static void flush(OutputStream out)

flush

public static void flush(Writer out)

flush

public static void flush(AWriter out)

readWholeFile

public static byte[] readWholeFile(InputStream in)

readWholeFileAsUTF8

public static String readWholeFileAsUTF8(String filename)
                                  throws IOException

Read a whole file as UTF-8

Parameters:

filename -

Returns:

String

Throws:

IOException

readWholeFileAsUTF8

public static String readWholeFileAsUTF8(InputStream in)
                                  throws IOException

Read a whole stream as UTF-8

Parameters:

in - InputStream to be read

Returns:

String

Throws:

IOException

uniqueFilename

public static String uniqueFilename(String directory,
                                    String base,
                                    String ext)