Java Module java.base Package java.util.zip Class InflaterInputStream（JDK11）

168 阅读 0 评论 0 点赞

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

All Implemented Interfaces:
Closeable, AutoCloseable
Direct Known Subclasses:
GZIPInputStream, ZipInputStream
```
public class InflaterInputStream
extends FilterInputStream
```
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.
protected Inflater inf
Decompressor for this stream.
protected int len
Length of input buffer.
- Fields declared in class java.io.FilterInputStream
  in

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 - if size <= 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()
         throws IOException
```
    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)
         throws IOException
```
    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.
    Overrides:
    read in class FilterInputStream
    Parameters:
    b - the buffer into which the data is read
    off - the start offset in the destination array b
    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 - If b is null.
    IndexOutOfBoundsException - If off is negative, len is negative, or len is greater than b.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()
              throws IOException
```
    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)
          throws IOException
```
    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 - if n < 0
  - close
```
public void close()
           throws IOException
```
    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()
             throws IOException
```
    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 the mark and reset methods. The markSupported method of InflaterInputStream returns false.
    Overrides:
    markSupported in class FilterInputStream
    Returns:
    a boolean indicating if this stream type supports the mark and reset methods.
    See Also:
    InputStream.mark(int), InputStream.reset()
  - mark
```
public void mark(int readlimit)
```
    Marks the current position in this input stream.
    The mark method of InflaterInputStream 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()
           throws IOException
```
    Repositions this stream to the position at the time the mark method was last called on this input stream.
    The method reset for class InflaterInputStream does nothing except throw an IOException.
    Overrides:
    reset in class FilterInputStream
    Throws:
    IOException - if this method is invoked.
    See Also:
    InputStream.mark(int), IOException

本文分类：JavaAPI
本文标签：JavaAPI JDK11 Java11
浏览次数：168 次浏览
本文链接：/javaapi/32948.html

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

Java Module java.base Package java.util.zip Class InflaterInputStream（JDK11）

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