Module robaho.httpserver

Package robaho.net.httpserver

Class NoSyncBufferedInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

robaho.net.httpserver.NoSyncBufferedInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class NoSyncBufferedInputStream
extends FilterInputStream

simple buffered input stream with no synchronization. mark/reset are not supported.

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	buf
protected int	count	The index one greater than the index of the last valid byte in the buffer.
protected int	pos	The current position in the buffer.

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
NoSyncBufferedInputStream(InputStream in)

Method Summary

Modifier and Type	Method	Description
int	available()	Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.
void	close()	Closes this input stream and releases any system resources associated with the stream.
int	read()	See the general contract of the read method of InputStream.
int	read(byte[] b, int off, int len)	Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.
long	skip(long n)	See the general contract of the skip method of InputStream.
long	transferTo(OutputStream out)

Methods inherited from class java.io.FilterInputStream

mark, markSupported, read, reset

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes

Methods inherited from class java.lang.Object

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

Field Details

buf

protected byte[] buf

count

protected int count

The index one greater than the index of the last valid byte in the buffer. This value is always in the range 0 through buf.length; elements buf[0] through buf[count-1] contain buffered input data obtained from the underlying input stream.

pos

protected int pos

The current position in the buffer. This is the index of the next byte to be read from the buf array.

This value is always in the range 0 through count. If it is less than count, then buf[pos] is the next byte to be supplied as input; if it is equal to count, then the next read or skip operation will require more bytes to be read from the contained input stream.

See Also:

• BufferedInputStream.buf

Constructor Details

NoSyncBufferedInputStream

public NoSyncBufferedInputStream(InputStream in)

Method Details

read

public int read()
         throws IOException

See the general contract of the read method of InputStream.

Overrides:

read in class FilterInputStream

Returns:

the next byte of data, or -1 if the end of the stream is reached.

Throws:

IOException - if this input stream has been closed by invoking its close() method, or an I/O error occurs.

See Also:

• FilterInputStream.in

read

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

Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.

This method implements the general contract of the corresponding read method of the InputStream class. As an additional convenience, it attempts to read as many bytes as possible by repeatedly invoking the read method of the underlying stream. This iterated read continues until one of the following conditions becomes true:

• The specified number of bytes have been read,
• The read method of the underlying stream returns -1, indicating end-of-file, or
• The available method of the underlying stream returns zero, indicating that further input requests would block.

If the first read on the underlying stream returns -1 to indicate end-of-file then this method returns -1. Otherwise, this method returns the number of bytes actually read.

Subclasses of this class are encouraged, but not required, to attempt to read as many bytes as possible in the same fashion.

Overrides:

read in class FilterInputStream

Parameters:

b - destination buffer.

off - offset at which to start storing bytes.

len - maximum number of bytes to read.

Returns:

the number of bytes read, or -1 if the end of the stream has been reached.

skip

public long skip(long n)
          throws IOException

See the general contract of the skip method of InputStream.

Overrides:

skip in class FilterInputStream

Throws:

IOException - if this input stream has been closed by invoking its close() method, in.skip(n) throws an IOException, or an I/O error occurs.

available

public int available()
              throws IOException

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.

Overrides:

available in class FilterInputStream

Returns:

an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking.

Throws:

IOException - if this input stream has been closed by invoking its close() method, or an I/O error occurs.

close

public void close()
           throws IOException

Closes this input stream and releases any system resources associated with the stream. Once the stream has been closed, further read(), available(), reset(), or skip() invocations will throw an IOException. Closing a previously closed stream has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class FilterInputStream

Throws:

IOException - if an I/O error occurs.

transferTo

public long transferTo(OutputStream out)
                throws IOException

Overrides:

transferTo in class InputStream

Throws:

IOException