net.i2p.util

Class ResettableGZIPInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.util.zip.InflaterInputStream

net.i2p.util.ResettableGZIPInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

ReusableGZIPInputStream

public class ResettableGZIPInputStream
extends InflaterInputStream

GZIP implementation per RFC 1952, reusing java's standard CRC32 and Inflater and InflaterInputStream implementations. The main difference is that this implementation allows its state to be reset to initial values, and hence reused, while the standard GZIPInputStream reads the GZIP header from the stream on instantiation.

Field Summary

Fields inherited from class java.util.zip.InflaterInputStream

buf, inf, len

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
ResettableGZIPInputStream() Build a new GZIP stream without a bound compressed stream.
ResettableGZIPInputStream(InputStream compressedStream) Warning - blocking!

Method Summary

Modifier and Type	Method and Description
void	close() Does NOT call super.close(), as it cannot be reused if we do that.
void	destroy() Calls super.close().
boolean	getFinished() Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream
long	getRemaining() Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream
long	getTotalExpanded() Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream
long	getTotalRead() Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream
void	initialize(InputStream compressedStream) Blocking call to initialize this stream with the data from the given compressed stream.
int	read()
int	read(byte[] buf)
int	read(byte[] buf, int off, int len)
String	toString() Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream

Methods inherited from class java.util.zip.InflaterInputStream

available, fill, mark, markSupported, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

ResettableGZIPInputStream

public ResettableGZIPInputStream()

Build a new GZIP stream without a bound compressed stream. You need to initialize this with initialize(compressedStream) when you want to decompress a stream.

ResettableGZIPInputStream

public ResettableGZIPInputStream(InputStream compressedStream)
                          throws IOException

Warning - blocking!

Throws:

IOException

Method Detail

close

public void close()
           throws IOException

Does NOT call super.close(), as it cannot be reused if we do that. Broken before 0.9.20.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InflaterInputStream

Throws:

IOException

destroy

public void destroy()
             throws IOException

Calls super.close(). May not be reused after this.

Throws:

IOException

getFinished

public boolean getFinished()

Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream

getRemaining

public long getRemaining()

Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream

getTotalExpanded

public long getTotalExpanded()

Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream

getTotalRead

public long getTotalRead()

Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream

initialize

public void initialize(InputStream compressedStream)
                throws IOException

Blocking call to initialize this stream with the data from the given compressed stream.

Throws:

IOException

read

public int read()
         throws IOException

Overrides:

read in class InflaterInputStream

Throws:

IOException

read

public int read(byte[] buf)
         throws IOException

Overrides:

read in class FilterInputStream

Throws:

IOException

read

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

Overrides:

read in class InflaterInputStream

Throws:

IOException

toString

public String toString()

Moved from i2ptunnel HTTPResponseOutputStream.InternalGZIPInputStream

Overrides:

toString in class Object