Package com.ibm.icu.dev.test.perf

Class PerfTest.BOMFreeReader

java.lang.Object

java.io.Reader

com.ibm.icu.dev.test.perf.PerfTest.BOMFreeReader

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

Enclosing class:

PerfTest

public static class PerfTest.BOMFreeReader
extends Reader

Field Summary

Fields

Modifier and Type	Field	Description
(package private) String	encoding
(package private) int	MAX_BOM_LENGTH
(package private) InputStreamReader	reader

Fields inherited from class java.io.Reader

lock

Constructor Summary

Constructors

Constructor	Description
BOMFreeReader(InputStream in)	Creates a new reader, skipping a BOM associated with the given encoding.
BOMFreeReader(InputStream in, String encoding)	Creates a new reader, skipping a BOM associated with the given encoding.

Method Summary

Modifier and Type	Method	Description
void	close()
private int	detectBOMLength(byte[] start)	Determines the length of a BOM in the beginning of start.
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

Field Details

reader

InputStreamReader reader

encoding

String encoding

MAX_BOM_LENGTH

int MAX_BOM_LENGTH

Constructor Details

BOMFreeReader

public BOMFreeReader(InputStream in)
              throws IOException

Creates a new reader, skipping a BOM associated with the given encoding. Equivalent to BOMFreeReader(in, null).

Parameters:

in - The input stream.

Throws:

IOException - Thrown if reading for a BOM causes an IOException.

BOMFreeReader

public BOMFreeReader(InputStream in,
 String encoding)
              throws IOException

Creates a new reader, skipping a BOM associated with the given encoding. If encoding is null, attempts to detect the encoding by the BOM.

Parameters:

in - The input stream.

encoding - The encoding to use. Can be null.

Throws:

IOException - Thrown if reading for a BOM causes an IOException.

Method Details

detectBOMLength

private int detectBOMLength(byte[] start)

Determines the length of a BOM in the beginning of start. Assumes start is at least a length 5 array. If encoding is null, the check will not be encoding specific and it will set the encoding of this BOMFreeReader.

Parameters:

start - The starting bytes.

encoding - The encoding. Can be null.

Returns:

The length of a detected BOM.

read

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

Specified by:

read in class Reader

Throws:

IOException

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