Class InflaterInputStream

protected byte[] buf

Byte array used as a buffer

protected Inflater inf

Decompressor for this filter

protected int len

Size of buffer

public InflaterInputStream(InputStream in)

Create an InflaterInputStream with the default decompresseor and a default buffer size.

Parameters:

in - the InputStream to read bytes from

public InflaterInputStream(InputStream in,
                           Inflater inf)

Create an InflaterInputStream with the specified decompresseor and a default buffer size.

Parameters:

in - the InputStream to read bytes from

inf - the decompressor used to decompress data read from in

public InflaterInputStream(InputStream in,
                           Inflater inf,
                           int size)

Create an InflaterInputStream with the specified decompresseor and a specified buffer size.

Parameters:

in - the InputStream to read bytes from

inf - the decompressor used to decompress data read from in

size - size of the buffer to use

public int available()
            throws IOException

Returns 0 once the end of the stream (EOF) has been reached. Otherwise returns 1.

Overrides:

available in interface FilterInputStream

public void close()
            throws IOException

Closes the input stream

Specified by:

close in interface Closeable

close in interface AutoCloseable

Overrides:

close in interface FilterInputStream

protected void fill()
            throws IOException

Fills the buffer with more data to decompress.

public void mark(int readLimit)

This method marks a position in the input to which the stream can be "reset" by calling the reset() method. The parameter @code{readlimit} is the number of bytes that can be read from the stream after setting the mark before the mark becomes invalid. For example, if mark() is called with a read limit of 10, then when 11 bytes of data are read from the stream before the reset() method is called, then the mark is invalid and the stream object instance is not required to remember the mark.

This method does nothing in this class, but subclasses may override it to provide mark/reset functionality.

Overrides:

mark in interface FilterInputStream

Parameters:

readLimit - The number of bytes that can be read before the mark becomes invalid

public boolean markSupported()

This method returns a boolean that indicates whether the mark/reset methods are supported in this class. Those methods can be used to remember a specific point in the stream and reset the stream to that point.

This method always returns false in this class, but subclasses can override this method to return true if they support mark/reset functionality.

Overrides:

markSupported in interface FilterInputStream

Returns:

true if mark/reset functionality is supported, false otherwise

public int read()
            throws IOException

Reads one byte of decompressed data. The byte is in the lower 8 bits of the int.

Overrides:

read in interface FilterInputStream

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

Decompresses data into the byte array

Overrides:

read in interface FilterInputStream

Parameters:

b - the array to read and decompress data into

off - the offset indicating where the data should be placed

len - the number of bytes to decompress

public void reset()
            throws IOException

This method resets a stream to the point where the mark() method was called. Any bytes that were read after the mark point was set will be re-read during subsequent reads.

This method always throws an IOException in this class, but subclasses can override this method if they provide mark/reset functionality.

Overrides:

reset in interface FilterInputStream

Throws:

IOException - Always thrown for this class

public long skip(long n)
            throws IOException

Skip specified number of bytes of uncompressed data

Overrides:

skip in interface FilterInputStream

Parameters:

n - number of bytes to skip