Module com.github.albfernandez.juniversalchardet

Package org.mozilla.universalchardet

Class UniversalDetector

java.lang.Object

org.mozilla.universalchardet.UniversalDetector

public class UniversalDetector
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	UniversalDetector.InputState

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	detectedCharset
private boolean	done
private CharsetProber	escCharsetProber
private boolean	gotData
private UniversalDetector.InputState	inputState
private byte	lastChar
private CharsetListener	listener
static float	MINIMUM_THRESHOLD
private boolean	onlyPrintableASCII
private CharsetProber[]	probers
static float	SHORTCUT_THRESHOLD
private boolean	start

Constructor Summary

Constructors

Constructor	Description
UniversalDetector()
UniversalDetector(CharsetListener listener)

Method Summary

Modifier and Type	Method	Description
void	dataEnd()	Marks end of data reading.
static java.lang.String	detectCharset(java.io.File file)	Gets the charset of a File.
static java.lang.String	detectCharset(java.io.InputStream inputStream)	Gets the charset of content from InputStream.
static java.lang.String	detectCharset(java.nio.file.Path path)	Gets the charset of a Path.
static java.lang.String	detectCharsetFromBOM(byte[] buf)
private static java.lang.String	detectCharsetFromBOM(byte[] buf, int offset)
java.lang.String	getDetectedCharset()
CharsetListener	getListener()
void	handleData(byte[] buf)	Feed the detector with more data
void	handleData(byte[] buf, int offset, int length)	Feed the detector with more data
boolean	isDone()
void	reset()	Resets detector to be used again.
void	setListener(CharsetListener listener)

Methods inherited from class java.lang.Object

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

Field Detail

SHORTCUT_THRESHOLD

public static final float SHORTCUT_THRESHOLD

See Also:

Constant Field Values

MINIMUM_THRESHOLD

public static final float MINIMUM_THRESHOLD

See Also:

Constant Field Values

inputState

private UniversalDetector.InputState inputState

done

private boolean done

start

private boolean start

gotData

private boolean gotData

onlyPrintableASCII

private boolean onlyPrintableASCII

lastChar

private byte lastChar

detectedCharset

private java.lang.String detectedCharset

probers

private CharsetProber[] probers

escCharsetProber

private CharsetProber escCharsetProber

listener

private CharsetListener listener

Constructor Detail

UniversalDetector

public UniversalDetector()

UniversalDetector

public UniversalDetector(CharsetListener listener)

Parameters:

listener - a listener object that is notified of the detected encocoding. Can be null.

Method Detail

isDone

public boolean isDone()

getDetectedCharset

public java.lang.String getDetectedCharset()

Returns:

The detected encoding is returned. If the detector couldn't determine what encoding was used, null is returned.

setListener

public void setListener(CharsetListener listener)

getListener

public CharsetListener getListener()

handleData

public void handleData(byte[] buf)

Feed the detector with more data

Parameters:

buf - The buffer containing the data

handleData

public void handleData(byte[] buf,
                       int offset,
                       int length)

Feed the detector with more data

Parameters:

buf - Buffer with the data

offset - initial position of data in buf

length - length of data

detectCharsetFromBOM

public static java.lang.String detectCharsetFromBOM(byte[] buf)

detectCharsetFromBOM

private static java.lang.String detectCharsetFromBOM(byte[] buf,
                                                     int offset)

dataEnd

public void dataEnd()

Marks end of data reading. Finish calculations.

reset

public final void reset()

Resets detector to be used again.

detectCharset

public static java.lang.String detectCharset(java.io.File file)
                                      throws java.io.IOException

Gets the charset of a File.

Parameters:

file - The file to check charset for

Returns:

The charset of the file, null if cannot be determined

Throws:

java.io.IOException - if some IO error occurs

detectCharset

public static java.lang.String detectCharset(java.nio.file.Path path)
                                      throws java.io.IOException

Gets the charset of a Path.

Parameters:

path - The path to file to check charset for

Returns:

The charset of the file, null if cannot be determined

Throws:

java.io.IOException - if some IO error occurs

detectCharset

public static java.lang.String detectCharset(java.io.InputStream inputStream)
                                      throws java.io.IOException

Gets the charset of content from InputStream.

Parameters:

inputStream - InputStream containing text file

Returns:

The charset of the file, null if cannot be determined

Throws:

java.io.IOException - if some IO error occurs