001/* An up-down counter.
002
003 Copyright (c) 1998-2014 The Regents of the University of California.
004 All rights reserved.
005 Permission is hereby granted, without written agreement and without
006 license or royalty fees, to use, copy, modify, and distribute this
007 software and its documentation for any purpose, provided that the above
008 copyright notice and the following two paragraphs appear in all copies
009 of this software.
010
011 IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
012 FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
013 ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
014 THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
015 SUCH DAMAGE.
016
017 THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
018 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
019 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
020 PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
021 CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
022 ENHANCEMENTS, OR MODIFICATIONS.
023
024 PT_COPYRIGHT_VERSION_2
025 COPYRIGHTENDKEY
026
027 */
028package ptolemy.component.test;
029
030import ptolemy.component.AtomicComponent;
031import ptolemy.component.MethodCallPort;
032import ptolemy.data.IntToken;
033import ptolemy.data.TupleToken;
034import ptolemy.kernel.CompositeEntity;
035import ptolemy.kernel.util.IllegalActionException;
036import ptolemy.kernel.util.NameDuplicationException;
037
038///////////////////////////////////////////////////////////////////
039//// Leds
040
041/**
042 Display received argument value to the std output.
043
044 @author Yang Zhao
045 @version $Id$
046 @since Ptolemy II 11.0
047 @Pt.ProposedRating Yellow (ellen_zh)
048 @Pt.AcceptedRating red (cxh)
049 */
050public class Leds extends AtomicComponent {
051    /** Construct an actor with the given container and name.
052     *  @param container The container.
053     *  @param name The name of this actor.
054     *  @exception IllegalActionException If the actor cannot be contained
055     *   by the proposed container.
056     *  @exception NameDuplicationException If the container already has an
057     *   actor with this name.
058     */
059    public Leds(CompositeEntity container, String name)
060            throws NameDuplicationException, IllegalActionException {
061        super(container, name);
062        display = new MethodCallPort(this, "display", true) {
063            @Override
064            public synchronized TupleToken call(TupleToken args) {
065                System.out.println("---call method Leds.displays.");
066
067                IntToken arg = (IntToken) args.getElement(0);
068                System.out.println("*** Leds Displays: " + arg.intValue());
069                return TupleToken.VOID;
070            }
071        };
072    }
073
074    ///////////////////////////////////////////////////////////////////
075    ////                     ports and parameters                  ////
076
077    /** The increment port. If this input port
078     *  receives a token, then the counter is incremented.  The port
079     *  has type general.
080     */
081    public MethodCallPort display;
082}