Movatterモバイル変換

Class InflaterInputStream

java.lang.Object
- java.io.InputStream
- - java.io.FilterInputStream
  - - java.util.zip.InflaterInputStream

All Implemented Interfaces:
Closeable,AutoCloseable
Direct Known Subclasses:
GZIPInputStream,ZipInputStream
```
public classInflaterInputStreamextendsFilterInputStream
```
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.
Since:
1.1
See Also:
Inflater

Field Summary
Fields
Modifier and Type Field Description
protected byte[] buf
Input buffer for decompression.
protectedInflater inf
Decompressor for this stream.
protected int len
Length of input buffer.
- Fields declared in class java.io.FilterInputStream
  in

Fields
Modifier and Type	Field	Description
`protected byte[]`	`buf`	Input buffer for decompression.
`protectedInflater`	`inf`	Decompressor for this stream.
`protected int`	`len`	Length of input buffer.

Constructor Summary

Constructors
Constructor	Description
`InflaterInputStream(InputStream in)`	Creates a new input stream with a default decompressor and buffer size.
`InflaterInputStream(InputStream in,Inflater inf)`	Creates a new input stream with the specified decompressor and a default buffer size.
`InflaterInputStream(InputStream in,Inflater inf, int size)`	Creates a new input stream with the specified decompressor and buffer size.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`available()`	Returns 0 after EOF has been reached, otherwise always return 1.
`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.
`void`	`mark(int readlimit)`	Marks the current position in this input stream.
`boolean`	`markSupported()`	Tests if this input stream supports the`mark` and`reset` methods.
`int`	`read()`	Reads a byte of uncompressed data.
`int`	`read(byte[] b, int off, int len)`	Reads uncompressed data into an array of bytes.
`void`	`reset()`	Repositions this stream to the position at the time the`mark` method was last called on this input stream.
`long`	`skip(long n)`	Skips specified number of bytes of uncompressed data.

Methods declared in class java.io.FilterInputStream
read

Methods declared in class java.io.InputStream
nullInputStream,readAllBytes,readNBytes,readNBytes,transferTo

Methods declared in class java.lang.Object
clone,equals,finalize,getClass,hashCode,notify,notifyAll,toString,wait,wait,wait

- Field Detail
  - inf
```
protected Inflater inf
```
    Decompressor for this stream.
  - buf
```
protected byte[] buf
```
    Input buffer for decompression.
  - len
```
protected int len
```
    Length of input buffer.
- Constructor Detail
  - InflaterInputStream
```
public InflaterInputStream(InputStream in,Inflater inf,                           int size)
```
    Creates a new input stream with the specified decompressor and buffer size.
    Parameters:
    in - the input stream
    inf - the decompressor ("inflater")
    size - the input buffer size
    Throws:
    IllegalArgumentException - ifsize <= 0
  - InflaterInputStream
```
public InflaterInputStream(InputStream in,Inflater inf)
```
    Creates a new input stream with the specified decompressor and a default buffer size.
    Parameters:
    in - the input stream
    inf - the decompressor ("inflater")
  - InflaterInputStream
```
public InflaterInputStream(InputStream in)
```
    Creates a new input stream with a default decompressor and buffer size.
    Parameters:
    in - the input stream
- Method Detail
  - read
```
public int read()         throwsIOException
```
    Reads a byte of uncompressed data. This method will block until enough input is available for decompression.
    Overrides:
    read in class FilterInputStream
    Returns:
    the byte read, or -1 if end of compressed input is reached
    Throws:
    IOException - if an I/O error has occurred
    See Also:
    FilterInputStream.in
  - read
```
public int read(byte[] b,                int off,                int len)         throwsIOException
```
    Reads uncompressed data into an array of bytes. Iflen is not zero, the method will block until some input can be decompressed; otherwise, no bytes are read and0 is returned.
    Overrides:
    read in class FilterInputStream
    Parameters:
    b - the buffer into which the data is read
    off - the start offset in the destination arrayb
    len - the maximum number of bytes read
    Returns:
    the actual number of bytes read, or -1 if the end of the compressed input is reached or a preset dictionary is needed
    Throws:
    NullPointerException - Ifb isnull.
    IndexOutOfBoundsException - Ifoff is negative,len is negative, orlen is greater thanb.length - off
    ZipException - if a ZIP format error has occurred
    IOException - if an I/O error has occurred
    See Also:
    FilterInputStream.in
  - available
```
public int available()              throwsIOException
```
    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.
    Overrides:
    available in class FilterInputStream
    Returns:
    1 before EOF and 0 after EOF.
    Throws:
    IOException - if an I/O error occurs.
  - skip
```
public long skip(long n)          throwsIOException
```
    Skips specified number of bytes of uncompressed data.
    Overrides:
    skip in class FilterInputStream
    Parameters:
    n - the number of bytes to skip
    Returns:
    the actual number of bytes skipped.
    Throws:
    IOException - if an I/O error has occurred
    IllegalArgumentException - ifn < 0
  - close
```
public void close()           throwsIOException
```
    Closes this input stream and releases any system resources associated with the stream.
    Specified by:
    close in interface AutoCloseable
    Specified by:
    close in interface Closeable
    Overrides:
    close in class FilterInputStream
    Throws:
    IOException - if an I/O error has occurred
    See Also:
    FilterInputStream.in
  - fill
```
protected void fill()             throwsIOException
```
    Fills input buffer with more data to decompress.
    Throws:
    IOException - if an I/O error has occurred
  - markSupported
```
public boolean markSupported()
```
    Tests if this input stream supports themark andreset methods. ThemarkSupported method ofInflaterInputStream returnsfalse.
    Overrides:
    markSupported in class FilterInputStream
    Returns:
    aboolean indicating if this stream type supports themark andreset methods.
    See Also:
    InputStream.mark(int),InputStream.reset()
  - mark
```
public void mark(int readlimit)
```
    Marks the current position in this input stream.
    Themark method ofInflaterInputStream does nothing.
    Overrides:
    mark in class FilterInputStream
    Parameters:
    readlimit - the maximum limit of bytes that can be read before the mark position becomes invalid.
    See Also:
    InputStream.reset()
  - reset
```
public void reset()           throwsIOException
```
    Repositions this stream to the position at the time themark method was last called on this input stream.
    The methodreset for classInflaterInputStream does nothing except throw anIOException.
    Overrides:
    reset in class FilterInputStream
    Throws:
    IOException - if this method is invoked.
    See Also:
    InputStream.mark(int),IOException

Movatterモバイル変換

Class InflaterInputStream

Field Summary

Fields declared in class java.io.FilterInputStream

Constructor Summary

Method Summary

Methods declared in class java.io.FilterInputStream

Methods declared in class java.io.InputStream

Methods declared in class java.lang.Object

Field Detail

inf

buf

len

Constructor Detail

InflaterInputStream

InflaterInputStream

InflaterInputStream

Method Detail

read

read

available

skip

close

fill

markSupported

mark

reset