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| java.lang.Object
 java.io.InputStream
java.io.FilterInputStream
java.util.zip.InflaterInputStream
All known Subclasses: java.util.zip.GZIPInputStream, java.util.zip.ZipInputStream,
| InflaterInputStream | | public class InflaterInputStream extends FilterInputStream (Code) | | This class implements a stream filter for uncompressing data in the
"deflate" compression format. It is also used as the basis for other
decompression filters, such as GZIPInputStream.
See Also: Inflater
version:
1.46, 05/05/07
author:
David Connelly |
| Field Summary | |
| protected byte[] | buf
Input buffer for decompression. | | protected Inflater | inf
Decompressor for this stream. | | protected int | len
Length of input buffer. | | boolean | usesDefaultInflater
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| Method Summary | |
| public int | available()
Returns 0 after EOF has been reached, otherwise always return 1. | | public void | close()
Closes this input stream and releases any system resources associated
with the stream. | | protected void | fill()
Fills input buffer with more data to decompress. | | public synchronized void | mark(int readlimit)
Marks the current position in this input stream. | | public boolean | markSupported()
Tests if this input stream supports the mark and
reset methods. | | public int | read()
Reads a byte of uncompressed data. | | public int | read(byte[] b, int off, int len)
Reads uncompressed data into an array of bytes. | | public synchronized void | reset()
Repositions this stream to the position at the time the
mark method was last called on this input stream. | | public long | skip(long n)
Skips specified number of bytes of uncompressed data. |
| buf | | protected byte[] buf(Code) | | Input buffer for decompression.
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| len | | protected int len(Code) | | Length of input buffer.
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| usesDefaultInflater | | boolean usesDefaultInflater(Code) | | |
| InflaterInputStream | | public InflaterInputStream(InputStream in, Inflater inf, int size)(Code) | | Creates a new input stream with the specified decompressor and
buffer size.
Parameters:
in - the input stream
Parameters:
inf - the decompressor ("inflater")
Parameters:
size - the input buffer size
exception:
IllegalArgumentException - if size is <= 0 |
| InflaterInputStream | | public InflaterInputStream(InputStream in, Inflater inf)(Code) | | Creates a new input stream with the specified decompressor and a
default buffer size.
Parameters:
in - the input stream
Parameters:
inf - the decompressor ("inflater") |
| InflaterInputStream | | public InflaterInputStream(InputStream in)(Code) | | Creates a new input stream with a default decompressor and buffer size.
Parameters:
in - the input stream |
| available | | public int available() throws IOException(Code) | | Returns 0 after EOF has been reached, otherwise always return 1.
Programs should not count on this method to return the actual number
of bytes that could be read without blocking.
1 before EOF and 0 after EOF.
exception:
IOException - if an I/O error occurs. |
| close | | public void close() throws IOException(Code) | | Closes this input stream and releases any system resources associated
with the stream.
exception:
IOException - if an I/O error has occurred |
| fill | | protected void fill() throws IOException(Code) | | Fills input buffer with more data to decompress.
exception:
IOException - if an I/O error has occurred |
| mark | | public synchronized void mark(int readlimit)(Code) | | Marks the current position in this input stream.
The mark method of InflaterInputStream
does nothing.
Parameters:
readlimit - the maximum limit of bytes that can be read beforethe mark position becomes invalid.
See Also: java.io.InputStream.reset |
| markSupported | | public boolean markSupported()(Code) | | Tests if this input stream supports the mark and
reset methods. The markSupported
method of InflaterInputStream returns
false.
a boolean indicating if this stream type supportsthe mark and reset methods.
See Also: java.io.InputStream.mark(int)
See Also: java.io.InputStream.reset |
| read | | public int read() throws IOException(Code) | | Reads a byte of uncompressed data. This method will block until
enough input is available for decompression.
the byte read, or -1 if end of compressed input is reached
exception:
IOException - if an I/O error has occurred |
| read | | public int read(byte[] b, int off, int len) throws IOException(Code) | | Reads uncompressed data into an array of bytes. If len is not
zero, the method will block until some input can be decompressed; otherwise,
no bytes are read and 0 is returned.
Parameters:
b - the buffer into which the data is read
Parameters:
off - the start offset in the destination array b
Parameters:
len - the maximum number of bytes read the actual number of bytes read, or -1 if the end of thecompressed input is reached or a preset dictionary is needed
exception:
NullPointerException - If b is null.
exception:
IndexOutOfBoundsException - If off is negative, len is negative, or len is greater than b.length - off
exception:
ZipException - if a ZIP format error has occurred
exception:
IOException - if an I/O error has occurred |
| skip | | public long skip(long n) throws IOException(Code) | | Skips specified number of bytes of uncompressed data.
Parameters:
n - the number of bytes to skip the actual number of bytes skipped.
exception:
IOException - if an I/O error has occurred
exception:
IllegalArgumentException - if n < 0 |
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