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JavaTM 2 Platform Std. Ed. v1.3 |
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java.lang.Object
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+--java.io.InputStream
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+--java.io.FilterInputStream
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+--java.util.zip.InflaterInputStream
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.
Inflater| Field Summary | |
protected byte[] |
buf
Input buffer for decompression. |
protected Inflater |
inf
Decompressor for this stream. |
protected int |
len
Length of input buffer. |
| Fields inherited from class java.io.FilterInputStream |
in |
| Constructor Summary | |
InflaterInputStream(InputStream in)
Creates a new input stream with a default decompressor and buffer size. |
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InflaterInputStream(InputStream in,
Inflater inf)
Creates a new input stream with the specified decompressor and a default buffer size. |
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InflaterInputStream(InputStream in,
Inflater inf,
int size)
Creates a new input stream with the specified decompressor and buffer size. |
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| Method Summary | |
int |
available()
Returns 0 after EOF has reached, otherwise always return 1. |
void |
close()
Closes the input stream. |
protected void |
fill()
Fills input buffer with more data to decompress. |
int |
read()
Reads a byte of uncompressed data. |
int |
read(byte[] b,
int off,
int len)
Reads uncompressed data into an array of bytes. |
long |
skip(long n)
Skips specified number of bytes of uncompressed data. |
| Methods inherited from class java.io.FilterInputStream |
mark, markSupported, read, reset |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
protected Inflater inf
protected byte[] buf
protected int len
| Constructor Detail |
public InflaterInputStream(InputStream in,
Inflater inf,
int size)
in - the input streaminf - the decompressor ("inflater")size - the input buffer sizeIllegalArgumentException - if size is <= 0
public InflaterInputStream(InputStream in,
Inflater inf)
in - the input streaminf - the decompressor ("inflater")public InflaterInputStream(InputStream in)
in - the input stream| Method Detail |
public int read()
throws IOException
read in class FilterInputStreamIOException - if an I/O error has occurred
public int read(byte[] b,
int off,
int len)
throws IOException
read in class FilterInputStreamb - the buffer into which the data is readoff - the start offset of the datalen - the maximum number of bytes readZipException - if a ZIP format error has occurredIOException - if an I/O error has occurred
public int available()
throws IOException
Programs should not count on this method to return the actual number of bytes that could be read without blocking.
available in class FilterInputStreamIOException - if an I/O error occurs.
public long skip(long n)
throws IOException
skip in class FilterInputStreamn - the number of bytes to skipIOException - if an I/O error has occurredIllegalArgumentException - if n < 0
public void close()
throws IOException
close in class FilterInputStreamIOException - if an I/O error has occurred
protected void fill()
throws IOException
IOException - if an I/O error has occurred
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JavaTM 2 Platform Std. Ed. v1.3 |
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