com.caucho.quercus.lib.zlib

Class GZInputStream

java.lang.Object

java.io.InputStream

com.caucho.quercus.lib.zlib.GZInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class GZInputStream
extends java.io.InputStream

Similar to GZIPInputStream but with ability to read appended gzip.

Constructor Summary

Constructors

Constructor and Description
GZInputStream(java.io.InputStream in)
GZInputStream(java.io.InputStream in, int size)

Method Summary

Modifier and Type	Method and Description
int	available() Returns 0 if gzip EOF has been reached, 1 otherwise
void	close()
boolean	isGzip() Returns true if stream is in gzip format.
boolean	markSupported() mark() and reset() are not supported by this class.
int	read() Returns the byte read, -1 if EOF
int	read(byte[] b) Reads from the compressed stream and stores the resulting uncompressed data into the byte array.
int	read(byte[] b, int off, int len) Reads from the compressed stream and stores the resulting uncompressed data into the byte array.
long	skip(long n) Skips over and discards n bytes.

Methods inherited from class java.io.InputStream

mark, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

GZInputStream

public GZInputStream(java.io.InputStream in)
              throws java.io.IOException

Throws:

java.io.IOException

GZInputStream

public GZInputStream(java.io.InputStream in,
                     int size)
              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

available

public int available()
              throws java.io.IOException

Returns 0 if gzip EOF has been reached, 1 otherwise

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException

markSupported

public boolean markSupported()

mark() and reset() are not supported by this class.

Overrides:

markSupported in class java.io.InputStream

Returns:

false always

read

public int read()
         throws java.io.IOException

Returns the byte read, -1 if EOF

Specified by:

read in class java.io.InputStream

Returns:

number of bytes read, or -1 if EOF

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Reads from the compressed stream and stores the resulting uncompressed data into the byte array.

Overrides:

read in class java.io.InputStream

Returns:

number of bytes read, or -1 upon EOF

Throws:

java.io.IOException

read

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

Reads from the compressed stream and stores the resulting uncompressed data into the byte array.

Overrides:

read in class java.io.InputStream

Returns:

number of bytes read, or -1 upon EOF

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Skips over and discards n bytes.

Overrides:

skip in class java.io.InputStream

Parameters:

n - number of bytes to skip

Returns:

actual number of bytes skipped

Throws:

java.io.IOException

isGzip

public boolean isGzip()

Returns true if stream is in gzip format.

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream