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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.io.InputStream
java.io.FilterInputStream
java.util.zip.InflaterInputStream
java.util.zip.GZIPInputStream
public class GZIPInputStream
This class implements a stream filter for reading compressed data in the GZIP file format.
InflaterInputStream| Field Summary | |
|---|---|
protected CRC32 |
crc
CRC-32 for uncompressed data. |
protected boolean |
eos
Indicates end of input stream. |
static int |
GZIP_MAGIC
GZIP header magic number. |
| Fields inherited from class java.util.zip.InflaterInputStream |
|---|
buf, inf, len |
| Fields inherited from class java.io.FilterInputStream |
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in |
| Constructor Summary | |
|---|---|
GZIPInputStream(InputStream in)
Creates a new input stream with a default buffer size. |
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GZIPInputStream(InputStream in,
int size)
Creates a new input stream with the specified buffer size. |
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| Method Summary | |
|---|---|
void |
close()
Closes this input stream and releases any system resources associated with the stream. |
int |
read(byte[] buf,
int off,
int len)
Reads uncompressed data into an array of bytes. |
| Methods inherited from class java.util.zip.InflaterInputStream |
|---|
available, fill, mark, markSupported, read, reset, skip |
| Methods inherited from class java.io.FilterInputStream |
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read |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected CRC32 crc
protected boolean eos
public static final int GZIP_MAGIC
| Constructor Detail |
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public GZIPInputStream(InputStream in,
int size)
throws IOException
in - the input streamsize - the input buffer size
IOException - if an I/O error has occurred
IllegalArgumentException - if size is <= 0
public GZIPInputStream(InputStream in)
throws IOException
in - the input stream
IOException - if an I/O error has occurred| Method Detail |
|---|
public int read(byte[] buf,
int off,
int len)
throws IOException
len is not
zero, the method will block until some input can be decompressed; otherwise,
no bytes are read and 0 is returned.
read in class InflaterInputStreambuf - the buffer into which the data is readoff - the start offset in the destination array blen - the maximum number of bytes read
NullPointerException - If buf is null.
IndexOutOfBoundsException - If off is negative,
len is negative, or len is greater than
buf.length - off
IOException - if an I/O error has occurred or the compressed
input data is corruptFilterInputStream.in
public void close()
throws IOException
close in interface Closeableclose in class InflaterInputStreamIOException - if an I/O error has occurredFilterInputStream.in
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Java™ Platform Standard Ed. 6 |
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Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.