java.util.jar
Class Manifest.FastInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          java.util.jar.Manifest.FastInputStream

Enclosing class:

Manifest

static class Manifest.FastInputStream

extends FilterInputStream

Field Summary

private byte[]	buf
private int	count
private int	pos

Fields inherited from class java.io.FilterInputStream

in

Fields inherited from class java.io.InputStream

Constructor Summary

(package private)	Manifest.FastInputStream(InputStream in)
(package private)	Manifest.FastInputStream(InputStream in, int size)

Method Summary

int	available() Returns the number of bytes that can be read from this input stream without blocking.
void	close() Closes this input stream and releases any system resources associated with the stream.
private void	fill()
byte	peek()
int	read() Reads the next byte of data from this input stream.
int	read(byte[] b, int off, int len) Reads up to len bytes of data from this input stream into an array of bytes.
int	readLine(byte[] b)
int	readLine(byte[] b, int off, int len)
long	skip(long n) Skips over and discards n bytes of data from the input stream.

Methods inherited from class java.io.FilterInputStream

mark, markSupported, read, reset

Methods inherited from class java.lang.Object

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

Field Detail

buf

private byte[] buf

count

private int count

pos

private int pos

Constructor Detail

Manifest.FastInputStream

Manifest.FastInputStream(InputStream in)

Manifest.FastInputStream

Manifest.FastInputStream(InputStream in,
                         int size)

Method Detail

read

public int read()
         throws IOException

Description copied from class: FilterInputStream

Reads the next byte of data from this input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

This method simply performs in.read() and returns the result.

Overrides:

read in class FilterInputStream

Returns:

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

Throws:

IOException - if an I/O error occurs.

See Also:

FilterInputStream.in

read

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

Description copied from class: FilterInputStream

Reads up to len bytes of data from this input stream into an array of bytes. This method blocks until some input is available.

This method simply performs in.read(b, off, len) and returns the result.

Overrides:

read in class FilterInputStream

Parameters:

b - the buffer into which the data is read.

off - the start offset of the data.

len - the maximum number of bytes read.

Returns:

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterInputStream.in

readLine

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

Throws:

IOException

peek

public byte peek()
          throws IOException

Throws:

IOException

readLine

public int readLine(byte[] b)
             throws IOException

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Description copied from class: FilterInputStream

Skips over and discards n bytes of data from the input stream. The skip method may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly 0. The actual number of bytes skipped is returned.

This method simply performs in.skip(n).

Overrides:

skip in class FilterInputStream

Parameters:

n - the number of bytes to be skipped.

Returns:

the actual number of bytes skipped.

Throws:

IOException - if an I/O error occurs.

available

public int available()
              throws IOException

Description copied from class: FilterInputStream

Returns the number of bytes that can be read from this input stream without blocking.

This method simply performs in.available() and returns the result.

Overrides:

available in class FilterInputStream

Returns:

the number of bytes that can be read from the input stream without blocking.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterInputStream.in

close

public void close()
           throws IOException

Description copied from class: FilterInputStream

Closes this input stream and releases any system resources associated with the stream. This method simply performs in.close().

Overrides:

close in class FilterInputStream

Throws:

IOException - if an I/O error occurs.

See Also:

FilterInputStream.in

fill

private void fill()
           throws IOException

Throws:

IOException