com.fasterxml.jackson.dataformat.smile.async

Interface NonBlockingInputFeeder

All Known Subinterfaces:

NonBlockingParser

All Known Implementing Classes:

NonBlockingParserImpl

public interface NonBlockingInputFeeder

Interface used by non-blocking JsonParser to get more input to parse. It is accessed by entity that feeds content to parse; at any given point only one chunk of content can be processed so caller has to take care to only feed more content when existing content has been parsed (which occurs when parser's nextToken is called). Once application using non-blocking parser has no more data to feed it should call endOfInput() to indicate end of logical input stream.

Author:

Tatu Saloranta

Method Summary

Methods

Modifier and Type	Method and Description
void	endOfInput() Method that should be called after last chunk of data to parse has been fed (with feedInput(byte[], int, int)); can be called regardless of what needMoreInput() returns.
void	feedInput(byte[] data, int offset, int len) Method that can be called to feed more data, if (and only if) needMoreInput() returns true.
boolean	needMoreInput() Method called to check whether it is ok to feed more data: parser returns true if it has no more content to parse (and it is ok to feed more); otherwise false (and no data should yet be fed).

Method Detail

needMoreInput

boolean needMoreInput()

Method called to check whether it is ok to feed more data: parser returns true if it has no more content to parse (and it is ok to feed more); otherwise false (and no data should yet be fed).

feedInput

void feedInput(byte[] data,
             int offset,
             int len)
               throws IOException

Method that can be called to feed more data, if (and only if) needMoreInput() returns true.

Parameters:

data - Byte array that contains data to feed: caller must ensure data remains stable until it is fully processed (which is true when needMoreInput() returns true)

offset - Offset within array where input data to process starts

len - Length of input data within array to process.

Throws:

IOException - if the state is such that this method should not be called (has not yet consumed existing input data, or has been marked as closed)

endOfInput

void endOfInput()

Method that should be called after last chunk of data to parse has been fed (with feedInput(byte[], int, int)); can be called regardless of what needMoreInput() returns. After calling this method, no more data can be fed; and parser assumes no more data will be available.