1 package org.djutils.decoderdumper;
2
3 import java.io.IOException;
4
5 /**
6 * Decoder interface.
7 * <p>
8 * Copyright (c) 2013-2021 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
9 * BSD-style license. See <a href="https://djutils.org/docs/current/djutils/licenses.html">DJUTILS License</a>.
10 * <p>
11 * @version $Revision$, $LastChangedDate$, by $Author$, initial version Jan 3, 2019 <br>
12 * @author <a href="https://www.tudelft.nl/averbraeck">Alexander Verbraeck</a>
13 * @author <a href="https://www.tudelft.nl/staff/p.knoppers/">Peter Knoppers</a>
14 */
15 public interface Decoder
16 {
17 /**
18 * Retrieve the current result of this Decoder. Decoders that handle multiple byte input may be somewhere within a token.
19 * Such Decoders should report a partial result. If no data has been added, the result must be the empty string.
20 * @return String; the current result of this Decoder
21 */
22 String getResult();
23
24 /**
25 * Retrieve the maximum width (in characters) of results that this Decoder can return (all shorter results will be padded to
26 * this width with spaces, unless this is the last active Decoder).
27 * @return int; the maximum width (in characters) of results that this Decoder can return
28 */
29 int getMaximumWidth();
30
31 /**
32 * Decode one (more) byte. This method must return true when a line becomes full due to this call, otherwise this method
33 * must return false.
34 * @param address int; the address that corresponds with the byte
35 * @param theByte byte; the byte
36 * @return boolean; true if an output line has been completed by this call; false if at least one more byte can be appended
37 * to the local accumulator before the current output line is full
38 * @throws IOException when the output device throws this exception
39 */
40 boolean append(int address, byte theByte) throws IOException;
41
42 /**
43 * If the result of this Decoder should not be used to compare output lines for suppressing identical lines, this method
44 * should return true; otherwise it should return false.
45 * @return boolean; true if the result of this Decoder should be ignored in testing for identical output lines; otherwise
46 * false
47 */
48 boolean ignoreForIdenticalOutputCheck();
49
50 }