question: @ Override protected boolean readIntoBuffer ( int minLength ) { if ( bufferSpaceLeft ( ) < minLength ) { increaseBufferSize ( minLength + currentlyInBuffer ( ) ) ; } else if ( buf . length - writePos < minLength ) { compact ( ) ; } int readSum = 0 ; while ( readSum < minLength && ! datagrams . isEmpty ( ) ) { Datagram next = datagrams . removeFirst ( ) ; int length = ( int ) next . getDuration ( ) ; if ( buf . length < writePos + length ) { increaseBufferSize ( writePos + length ) ; } int read = readDatagram ( next , buf , writePos ) ; writePos += read ; readSum += read ; } if ( dataProcessor != null ) { dataProcessor . applyInline ( buf , writePos - readSum , readSum ) ; } return readSum >= minLength ; }
target:  Attempt to get more data from the input source. If less than this can be read, the possible amount will be read, but canReadMore() will return false afterwards.