org.apache.hc.core5.http.nio

接口 FileContentDecoder

所有超级接口:

ContentDecoder

所有已知实现类:

IdentityDecoder, LengthDelimitedDecoder

public interface FileContentDecoder
extends ContentDecoder

A content decoder capable of transferring data directly to a FileChannel

从以下版本开始:

4.0

方法概要

限定符和类型	方法和说明
long	transfer(FileChannel dst, long position, long count) Transfers a portion of entity content from the underlying network channel into the given file channel.

从接口继承的方法 org.apache.hc.core5.http.nio.ContentDecoder

getTrailers, isCompleted, read

方法详细资料

transfer

long transfer(FileChannel dst,
              long position,
              long count)
       throws IOException

Transfers a portion of entity content from the underlying network channel into the given file channel.

Warning: Many implementations cannot write beyond the length of the file. If the position exceeds the channel's size, some implementations may throw an IOException.

参数:

dst - the target FileChannel to transfer data into.

position - The position within the file at which the transfer is to begin; must be non-negative. Must be less than or equal to the size of the file

count - The maximum number of bytes to be transferred; must be non-negative

返回:

The number of bytes, possibly zero, that were actually transferred

抛出:

IOException - if some I/O error occurs.