com.singlestore.jdbc.client.socket.impl

Class ReadAheadBufferedStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.singlestore.jdbc.client.socket.impl.ReadAheadBufferedStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class ReadAheadBufferedStream
extends FilterInputStream

Permit to buf socket data, reading not only asked bytes, but available number of bytes when possible.

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
ReadAheadBufferedStream(InputStream in) Constructor

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
boolean	markSupported()
int	read()
int	read(byte[] externalBuf, int off, int len) Returing byte array, from cache of reading socket if needed.
void	reset()
long	skip(long n)

Methods inherited from class java.io.FilterInputStream

mark, read

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadAheadBufferedStream

public ReadAheadBufferedStream(InputStream in)

Constructor

Implementation doesn't use synchronized/semaphore because all used are already locked by Statement/PreparedStatement Reentrant lock

Parameters:

in - socket input stream

Method Detail

read

public int read(byte[] externalBuf,
                int off,
                int len)
         throws IOException

Returing byte array, from cache of reading socket if needed.

Overrides:

read in class FilterInputStream

Parameters:

externalBuf - buf to fill

off - offset

len - length to read

Returns:

number of added bytes

Throws:

IOException - if exception during socket reading

markSupported

public boolean markSupported()

Overrides:

markSupported in class FilterInputStream

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class FilterInputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class FilterInputStream

Throws:

IOException

read

public int read()
         throws IOException

Overrides:

read in class FilterInputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class FilterInputStream

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class FilterInputStream

Throws:

IOException