org.apache.http.nio
Interface FileContentEncoder

All Superinterfaces:

ContentEncoder

All Known Implementing Classes:

IdentityEncoder, LengthDelimitedEncoder

public interface FileContentEncoder
extends ContentEncoder

A content encoder capable of transferring data directly from a FileChannel

Since:

4.0

Method Summary

long	transfer(FileChannel src, long position, long count) Transfers a portion of entity content from the given file channel to the underlying network channel.

Methods inherited from interface org.apache.http.nio.ContentEncoder

complete, isCompleted, write

Method Detail

transfer

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

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

Parameters:

src - the source FileChannel to transfer data from.

position - The position within the file at which the transfer is to begin; must be non-negative

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

Returns:

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

Throws:

IOException - if some I/O error occurs.