001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.workinprogress;
031
032import java.io.IOException;
033
034import org.openimaj.hardware.serial.SerialDevice;
035import org.openimaj.stream.provider.twitter.TwitterStreamDataset;
036import org.openimaj.util.api.auth.DefaultTokenFactory;
037import org.openimaj.util.api.auth.common.TwitterAPIToken;
038import org.openimaj.util.array.ArrayUtils;
039import org.openimaj.util.function.Operation;
040
041import twitter4j.Status;
042
043public class SignProgrammer {
044        private static final byte CLEAR = (byte) 0x8C;
045        private static final byte SPEED = (byte) 0x8D;
046        public static byte LEFT = (byte) 0x81;
047        public static byte RIGHT = (byte) 0x82;
048        public static byte END = (byte) 0x80;
049        public static byte FLASH = (byte) 0x88;
050        public static byte START = (byte) 0xAA;
051        public static byte ID = (byte) 0xBB;
052        public static byte WAIT = (byte) 0x8F;
053        public static byte JUMP = (byte) 0x85; // instant replace
054        public static byte RANDOM = (byte) 0x8E;
055
056        public static void main(String[] args) throws Exception {
057                final SerialDevice dev = new SerialDevice("/dev/tty.usbserial-FTB3MMNA", 2400, 8, 1, 0);
058                final byte[] init = {
059                                START, START, START, START,
060                                START, START, START, START,
061                                ID,
062                                LEFT };
063                final byte[] end = { END };
064
065                final byte[] cmd = ArrayUtils.concatenate(init, new byte[] { SPEED, 1, CLEAR },
066                                "Starting twitter display".getBytes(), end);
067                writeMessage(dev, cmd);
068
069                Thread.sleep(10000);
070
071                final TwitterStreamDataset data = new
072                                TwitterStreamDataset(DefaultTokenFactory.get(TwitterAPIToken.class));
073                data.forEach(new Operation<Status>() {
074                        @Override
075                        public void perform(Status object) {
076                                try {
077                                        if (object.getIsoLanguageCode().equals("en")) {
078                                                final String tweet = object.getText().replaceAll("[^\\x00-\\x7F]", "") + "               ";
079                                                final byte[] message = tweet.getBytes("US-ASCII");
080                                                final byte[] cmd = ArrayUtils.concatenate(init, new byte[] { SPEED, 1, CLEAR }, message, end);
081
082                                                System.out.println("Sending command " + tweet);
083                                                writeMessage(dev, cmd);
084                                                System.out.println("Done");
085                                                Thread.sleep(100 * message.length);
086                                        }
087                                } catch (final Exception e) {
088                                        System.err.println(e);
089                                }
090                        }
091                });
092
093                // dev.close();
094        }
095
096        private static void writeMessage(final SerialDevice dev, final byte[] cmd) throws IOException {
097                for (int i = 0; i < cmd.length; i++) {
098                        if (cmd[i] == ' ') {
099                                cmd[i] = ':';
100                        } else if (cmd[i] == ':') {
101                                cmd[i] = ' ';
102                        } else if (cmd[i] == '_') {
103                                cmd[i] = '>';
104                        } else if (cmd[i] == '>') {
105                                cmd[i] = '_';
106                        }
107                }
108
109                dev.getOutputStream().write(cmd);
110        }
111}