io.zeebe.logstreams.spi

Interface ReadResultProcessor

All Known Implementing Classes:

CompleteEventsInBlockProcessor

public interface ReadResultProcessor

Represents an processor, which process the given byte buffer and the read result. The read result corresponds to the bytes which was read before.

Is used in the LogStorage.read(ByteBuffer, long, ReadResultProcessor) method to process the bytes, which are read and return the count of the appropriated bytes which should be only been read. Can for example be used to throw away bytes, because they belong to another fragment which was not read completely into the buffer.

Author:

Christopher Zell

Method Summary

Modifier and Type	Method and Description
int	process(ByteBuffer buffer, int readResult) Process the given buffer and use the readResult to return the right count of bytes, which should been read.

Method Detail

process

int process(ByteBuffer buffer,
            int readResult)

Process the given buffer and use the readResult to return the right count of bytes, which should been read. If some bytes are part of another fragment, which is not completely read into the buffer, the buffer can be cleaned up and the returned count can be for example ${readResult - fragmentBytes}.

Parameters:

buffer - the buffer, which should been processed

readResult - the count of bytes,which are read before

Returns:

the count of bytes, which should only been read