com.jn.langx.util.hash

类 HashingInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.jn.langx.util.hash.HashingInputStream

所有已实现的接口:

Closeable, AutoCloseable

public final class HashingInputStream
extends FilterInputStream

从以下版本开始:

4.4.0

字段概要

从类继承的字段 java.io.FilterInputStream

in

构造器概要

构造器

构造器和说明
HashingInputStream(StreamingHasher hasher, InputStream in) Creates an input stream that hashes using the given StreamingHasher and delegates all data read from it to the underlying InputStream.

方法概要

限定符和类型	方法和说明
long	getHash() Returns the hash code based on the data read from this stream.
void	mark(int readlimit) mark() is not supported for HashingInputStream
boolean	markSupported() mark() is not supported for HashingInputStream
int	read() Reads the next byte of data from the underlying input stream and updates the hasher with the byte read.
int	read(byte[] bytes, int off, int len) Reads the specified bytes of data from the underlying input stream and updates the hasher with the bytes read.
void	reset() reset() is not supported for HashingInputStream.

从类继承的方法 java.io.FilterInputStream

available, close, read, skip

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

HashingInputStream

public HashingInputStream(StreamingHasher hasher,
                          InputStream in)

Creates an input stream that hashes using the given StreamingHasher and delegates all data read from it to the underlying InputStream.

The InputStream should not be read from before or after the hand-off.

方法详细资料

read

public int read()
         throws IOException

Reads the next byte of data from the underlying input stream and updates the hasher with the byte read.

覆盖:

read 在类中 FilterInputStream

抛出:

IOException

read

public int read(byte[] bytes,
                int off,
                int len)
         throws IOException

Reads the specified bytes of data from the underlying input stream and updates the hasher with the bytes read.

覆盖:

read 在类中 FilterInputStream

抛出:

IOException

markSupported

public boolean markSupported()

mark() is not supported for HashingInputStream

覆盖:

markSupported 在类中 FilterInputStream

返回:

false always

mark

public void mark(int readlimit)

mark() is not supported for HashingInputStream

覆盖:

mark 在类中 FilterInputStream

reset

public void reset()
           throws IOException

reset() is not supported for HashingInputStream.

覆盖:

reset 在类中 FilterInputStream

抛出:

IOException - this operation is not supported

getHash

public long getHash()

Returns the hash code based on the data read from this stream. The result is unspecified if this method is called more than once on the same instance.