Package marauroa.common.io

Class UnicodeSupportingInputStreamReader

java.lang.Object

java.io.Reader

marauroa.common.io.UnicodeSupportingInputStreamReader

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

public class UnicodeSupportingInputStreamReader
extends Reader

Generic unicode textreader, which will use BOM mark to identify the encoding to be used. If BOM is not found then use a given default or system encoding.

Since:

2.1

Field Summary

Fields inherited from class java.io.Reader

lock

Constructor Summary

Constructors

Constructor	Description
UnicodeSupportingInputStreamReader(InputStream in)	Creates a new UnicodeSupportingInputStreamReader
UnicodeSupportingInputStreamReader(InputStream in, String defaultEnc)	Creates a new UnicodeSupportingInputStreamReader

Method Summary

Modifier and Type	Method	Description
void	close()
String	getDefaultEncoding()	returns the default encoding
String	getEncoding()	Get stream encoding or NULL if stream is uninitialized.
protected void	init()	Read-ahead four bytes and check for BOM marks.
int	read(char[] cbuf, int off, int len)

Methods inherited from class java.io.Reader

mark, markSupported, nullReader, read, read, read, ready, reset, skip, transferTo

Methods inherited from class java.lang.Object

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

Constructor Details

UnicodeSupportingInputStreamReader

public UnicodeSupportingInputStreamReader(InputStream in)

Creates a new UnicodeSupportingInputStreamReader

Parameters:

in - inputstream to be read

UnicodeSupportingInputStreamReader

public UnicodeSupportingInputStreamReader(InputStream in,
 String defaultEnc)

Creates a new UnicodeSupportingInputStreamReader

Parameters:

in - inputstream to be read

defaultEnc - default encoding if stream does not have BOM marker. Give NULL to use system-level default.

Method Details

getDefaultEncoding

public String getDefaultEncoding()

returns the default encoding

Returns:

default encoding

getEncoding

public String getEncoding()

Get stream encoding or NULL if stream is uninitialized. Call init() or read() method to initialize it.

Returns:

actual encoding used to read this file

init

protected void init()
             throws IOException

Read-ahead four bytes and check for BOM marks. Extra bytes are unread back to the stream, only BOM bytes are skipped.

Throws:

IOException - in cases of an I/O error

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class Reader

Throws:

IOException

read

public int read(char[] cbuf,
 int off,
 int len)
         throws IOException

Specified by:

read in class Reader

Throws:

IOException