java.util.zip
Class GZIPInputStream
- AutoCloseable, Closeable
This filter stream is used to decompress a "GZIP" format stream.
The "GZIP" format is described in RFC 1952.
static int | GZIP_MAGIC- The magic number found at the start of a GZIP stream.
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protected CRC32 | crc- The CRC-32 checksum value for uncompressed data.
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protected boolean | eos- Indicates whether or not the end of the stream has been reached.
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void | close()- Closes the input stream.
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int | read(byte[] buf, int offset, int len)- Reads in GZIP-compressed data and stores it in uncompressed form
into an array of bytes.
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clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
GZIP_MAGIC
public static final int GZIP_MAGIC
The magic number found at the start of a GZIP stream.
crc
protected CRC32 crc
The CRC-32 checksum value for uncompressed data.
eos
protected boolean eos
Indicates whether or not the end of the stream has been reached.
GZIPInputStream
public GZIPInputStream(InputStream in)
throws IOException Creates a GZIPInputStream with the default buffer size.
in - The stream to read compressed data from
(in GZIP format).
IOException - if an error occurs during an I/O operation.
GZIPInputStream
public GZIPInputStream(InputStream in,
int size)
throws IOException Creates a GZIPInputStream with the specified buffer size.
in - The stream to read compressed data from
(in GZIP format).size - The size of the buffer to use.
read
public int read(byte[] buf,
int offset,
int len)
throws IOException Reads in GZIP-compressed data and stores it in uncompressed form
into an array of bytes. The method will block until either
enough input data becomes available or the compressed stream
reaches its end.
- read in interface InflaterInputStream
buf - the buffer into which the uncompressed data will
be stored.offset - the offset indicating where in buf
the uncompressed data should be placed.len - the number of uncompressed bytes to be read.
GZIPInputStream.java - Input filter for reading gzip file
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