Java tutorial
/** * * Copyright (c) 2009-2016 Freedomotic team http://freedomotic.com * * This file is part of Freedomotic * * This Program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation; either version 2, or (at your option) any later version. * * This Program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along with * Freedomotic; see the file COPYING. If not, see * <http://www.gnu.org/licenses/>. */ package com.freedomotic.plugins.devices.simulation; import com.freedomotic.api.EventTemplate; import com.freedomotic.api.Protocol; import com.freedomotic.environment.ZoneLogic; import com.freedomotic.exceptions.PluginStartupException; import com.freedomotic.exceptions.UnableToExecuteException; import com.freedomotic.model.geometry.FreedomPoint; import com.freedomotic.plugins.devices.simulation.fromfile.WorkerThread; import com.freedomotic.reactions.Command; import com.freedomotic.settings.Info; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.StringTokenizer; import org.apache.commons.io.FileUtils; import org.apache.commons.io.FilenameUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * * @author Enrico Nicoletti */ public class TrackingReadFile extends Protocol { private static final Logger LOG = LoggerFactory.getLogger(TrackingReadFile.class.getName()); private final String DATA_TYPE = configuration.getStringProperty("data-type", "rooms"); private final int ITERATIONS = configuration.getIntProperty("iterations", 1); private ArrayList<WorkerThread> workers = null; /** * Simulates a motes WSN. Positions are read from a text file. * */ public TrackingReadFile() { super("Tracking Simulator (Read file)", "/simulation/tracking-simulator-read-file.xml"); setDescription("Simulates a motes WSN. Positions are read from a text file"); } @Override public void onStart() throws PluginStartupException { try { workers = new ArrayList<>(); File dir = new File(Info.PATHS.PATH_DEVICES_FOLDER + "/simulation/data/motes"); String[] extensions = new String[] { "mote" }; LOG.info("Getting all \".mote\" files in \"{}\"", dir.getCanonicalPath()); List<File> motes = (List<File>) FileUtils.listFiles(dir, extensions, true); if (!motes.isEmpty()) { for (File file : motes) { switch (DATA_TYPE) { case "coordinates": readMoteFileCoordinates(file); break; case "rooms": readMoteFileRooms(file); break; default: throw new PluginStartupException("<data-type> property wrong in manifest file"); } } for (WorkerThread workerThread : workers) { workerThread.start(); } } else { throw new PluginStartupException("No \".mote\" files found."); } } catch (IOException ex) { throw new PluginStartupException("Error during file \".motes\" loading." + ex.getMessage(), ex); } } /** * Reads coordinates from file. * * @param f file of coordinates */ private void readMoteFileCoordinates(File f) { ArrayList<Coordinate> coord = new ArrayList<>(); String userId = FilenameUtils.removeExtension(f.getName()); try (FileReader fr = new FileReader(f); BufferedReader br = new BufferedReader(fr);) { LOG.info("Reading coordinates from file \"{}\"", f.getAbsolutePath()); String line; while ((line = br.readLine()) != null) { //tokenize string StringTokenizer st = new StringTokenizer(line, ","); LOG.info("Mote \"{}\" coordinate added \"{}\"", userId, line); Coordinate c = new Coordinate(); c.setUserId(userId); c.setX(new Integer(st.nextToken())); c.setY(new Integer(st.nextToken())); c.setTime(new Integer(st.nextToken())); coord.add(c); } WorkerThread wt = new WorkerThread(this, coord, ITERATIONS); workers.add(wt); } catch (FileNotFoundException ex) { LOG.error("Coordinates file not found for mote \"{}\"", userId); } catch (IOException ex) { LOG.error("IOException: ", ex); } } /** * Reads room names from file. * * @param f file of room names */ private void readMoteFileRooms(File f) { ArrayList<Coordinate> coord = new ArrayList<>(); String userId = FilenameUtils.removeExtension(f.getName()); try (FileReader fr = new FileReader(f); BufferedReader br = new BufferedReader(fr);) { LOG.info("Reading coordinates from file \"{}\"", f.getAbsolutePath()); String line; while ((line = br.readLine()) != null) { //tokenize string StringTokenizer st = new StringTokenizer(line, ","); String roomName = st.nextToken(); LOG.info("Mote \"{}\" coordinate added \"{}\"", userId, line); ZoneLogic zone = getApi().environments().findAll().get(0).getZone(roomName); if (zone != null) { FreedomPoint roomCenterCoordinate = Utils.getPolygonCenter(zone.getPojo().getShape()); Coordinate c = new Coordinate(); c.setUserId(userId); c.setX(roomCenterCoordinate.getX()); c.setY(roomCenterCoordinate.getY()); c.setTime(new Integer(st.nextToken())); coord.add(c); } else { LOG.warn("Room \"{}\" not found.", roomName); } } WorkerThread wt = new WorkerThread(this, coord, ITERATIONS); workers.add(wt); } catch (FileNotFoundException ex) { LOG.error("Coordinates file not found for mote \"{}\"", userId); } catch (IOException ex) { LOG.error("IOException: ", ex); } } /** * Gets the plugin logger. * * @return the logger */ public Logger getLog() { return LOG; } @Override protected void onRun() { //do nothing } @Override protected void onCommand(Command c) throws IOException, UnableToExecuteException { //do nothing } @Override protected boolean canExecute(Command c) { //do nothing return true; } @Override protected void onEvent(EventTemplate event) { //do nothing } }