liquibase.resource

Class UtfBomAwareReader

java.lang.Object

java.io.Reader

liquibase.resource.UtfBomAwareReader

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

public class UtfBomAwareReader
extends Reader

Reader that tries to identify the encoding by looking at the BOM. If no BOM is found it defaults to the encoding givent at initialization. Original ideas from Thomas Weidenfeller, Aki Nieminen.

Author:

Dominique Broeglin

Field Summary

Fields inherited from class java.io.Reader

lock

Constructor Summary

Constructors

Constructor and Description
UtfBomAwareReader(InputStream in)
UtfBomAwareReader(InputStream in, String defaultCharsetName)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
String	getDefaultEncoding()
String	getEncoding()
protected void	init() Read up to 4 bytes to determine the BOM.
int	read(char[] cbuf, int off, int len)

Methods inherited from class java.io.Reader

mark, markSupported, read, read, read, ready, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

UtfBomAwareReader

public UtfBomAwareReader(InputStream in)

UtfBomAwareReader

public UtfBomAwareReader(InputStream in,
                 String defaultCharsetName)

Method Detail

getDefaultEncoding

public String getDefaultEncoding()

getEncoding

public String getEncoding()

init

protected void init()
             throws IOException

Read up to 4 bytes to determine the BOM. Extra bytes, of if no BOM is found are pushed back to the input stream. If no BOM is found, the defaultCharsetName is used to initialize the reader.

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

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