gudusoft.gsqlparser.util

Class SQLUtil.UnicodeInputStream

Object

InputStream

gudusoft.gsqlparser.util.SQLUtil.UnicodeInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

Enclosing class:

SQLUtil

public static class SQLUtil.UnicodeInputStream
extends InputStream

This inputstream will recognize unicode BOM marks and will skip bytes if getEncoding() method is called before any of the read(...) methods.

Usage pattern: String enc = "ISO-8859-1"; // or NULL to use systemdefault FileInputStream fis = new FileInputStream(file); UnicodeInputStream uin = new UnicodeInputStream(fis, enc); enc = uin.getEncoding(); // check and skip possible BOM bytes InputStreamReader in; if (enc == null) in = new InputStreamReader(uin); else in = new InputStreamReader(uin, enc);

Constructor Summary

Constructors

Constructor and Description
UnicodeInputStream(InputStream in, String defaultEnc)

Method Summary

Modifier and Type	Method and Description
void	close()
String	getDefaultEncoding()
String	getEncoding()
protected void	init() Read-ahead four bytes and check for BOM marks.
int	read()

Methods inherited from class InputStream

available, mark, markSupported, read, read, reset, skip

Methods inherited from class Object

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

Constructor Detail

UnicodeInputStream

public UnicodeInputStream(InputStream in,
                          String defaultEnc)

Method Detail

getDefaultEncoding

public String getDefaultEncoding()

getEncoding

public String getEncoding()

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

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException