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## org.apache.http.nio
Interface ContentDecoder

All Known Subinterfaces:
  FileContentDecoder

All Known Implementing Classes:
  AbstractContentDecoder, ChunkDecoder, IdentityDecoder, LengthDelimitedDecoder

    public interface ContentDecoder

Abstract HTTP content decoder. HTTP content decoders can be used to read entity content from the underlying channel in small chunks and apply the required coding transformation.

Since:
  4.0

Method Summary
`boolean` | `isCompleted()` Returns `true` if the entity has been received in its entirety.
`int` | `read(ByteBuffer dst)` Reads a portion of content from the underlying channel

Method Detail

### read

    int read(ByteBuffer dst)
             throws IOException

  Reads a portion of content from the underlying channel

  Parameters:
    `dst` - The buffer into which entity content is to be transferred
  Returns:
    The number of bytes read, possibly zero, or -1 if the channel has reached end-of-stream
  Throws:
    `IOException` - if I/O error occurs while reading content

### isCompleted

    boolean isCompleted()

  Returns `true` if the entity has been received in its entirety.

  Returns:
    `true` if all the content has been consumed, `false` otherwise.

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