question: public String read ( ByteBuffer buf , DictionaryCache dict ) { StringBuilder out = new StringBuilder ( ) ; if ( pre != null ) out . append ( pre ) ; if ( type == VOID ) return out . toString ( ) ; if ( type == NULL ) { out . append ( "null" ) ; return out . toString ( ) ; } if ( type == BYTE ) { out . append ( buf . get ( ) ) ; return out . toString ( ) ; } if ( type == SHORT ) { out . append ( buf . getShort ( ) ) ; return out . toString ( ) ; } if ( type == INT ) { out . append ( buf . getInt ( ) ) ; return out . toString ( ) ; } if ( type == LONG ) { out . append ( buf . getLong ( ) ) ; return out . toString ( ) ; } if ( type == DOUBLE ) { out . append ( buf . getDouble ( ) ) ; return out . toString ( ) ; } if ( type == BOOLEAN ) { out . append ( ( buf . get ( ) == 0 ? "false" : "true" ) ) ; return out . toString ( ) ; } if ( type == STRING ) { short pos = buf . getShort ( ) ; if ( pos > - 1 ) { out . append ( "\"" ) ; out . append ( dict . get ( pos ) ) ; out . append ( "\"" ) ; } else { int size = 0 ; int val = buf . get ( ) & 0xFF ; while ( val == 255 ) { size += val ; val = buf . get ( ) & 0xFF ; } size += val ; byte [ ] data = new byte [ size ] ; buf . get ( data ) ; out . append ( "\"" ) ; out . append ( new String ( data , StandardCharsets . UTF_8 ) ) ; out . append ( "\"" ) ; } return out . toString ( ) ; } return null ; }
target:  Read this segment from a byte buffer using the given dictionary for lookups. The dictionary may be null if no dictionary values were used when writing data for this segment.