## org.apache.http.nio
Interface NHttpMessageParser<T extends HttpMessage>

All Known Implementing Classes:
  AbstractMessageParser, DefaultHttpRequestParser, DefaultHttpResponseParser, HttpRequestParser, HttpResponseParser

    public interface NHttpMessageParser<T extends HttpMessage>

Abstract HTTP message parser for non-blocking connections.

Since:
  4.0

Method Summary
`int` `fillBuffer(ReadableByteChannel channel)` Fills the internal buffer of the parser with input data from the given `ReadableByteChannel`.
`T` `parse()` Attempts to parse a complete message head from the content of the internal buffer.
`void` `reset()` Resets the parser.

Method Detail

### reset

    void reset()

  Resets the parser. The parser will be ready to start parsing another HTTP message.

### fillBuffer

    int fillBuffer(ReadableByteChannel channel)
                   throws IOException

  Fills the internal buffer of the parser with input data from the given `ReadableByteChannel`.

  Parameters:
    `channel` - the input channel
  Returns:
    number of bytes read.
  Throws:
    `IOException` - in case of an I/O error.

### parse

    T parse()
                                throws IOException,
                                       HttpException

  Attempts to parse a complete message head from the content of the internal buffer. If the message in the input buffer is incomplete this method will return `null`.

  Returns:
    HTTP message head, if available, `null` otherwise.
  Throws:
    `IOException` - in case of an I/O error.
    `HttpException` - in case the HTTP message is malformed or violates the HTTP protocol.

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