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1174 lines
32 KiB
Java
1174 lines
32 KiB
Java
/*
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* Copyright (c) 2009, Swedish Institute of Computer Science. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer. 2. Redistributions in
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* binary form must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution. 3. Neither the name of the
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* Institute nor the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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package org.contikios.cooja;
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import java.util.ArrayDeque;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Observable;
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import java.util.Observer;
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import java.util.Random;
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import java.util.Vector;
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import javax.swing.JOptionPane;
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import org.apache.log4j.Logger;
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import org.jdom.Element;
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import org.contikios.cooja.dialogs.CreateSimDialog;
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/**
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* A simulation consists of a number of motes and mote types.
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*
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* A simulation is observable:
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* changed simulation state, added or deleted motes etc are observed.
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* To track mote changes, observe the mote (interfaces) itself.
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*
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* @author Fredrik Osterlind
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*/
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public class Simulation extends Observable implements Runnable {
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public static final long MICROSECOND = 1L;
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public static final long MILLISECOND = 1000*MICROSECOND;
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/*private static long EVENT_COUNTER = 0;*/
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private Vector<Mote> motes = new Vector<Mote>();
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private Vector<Mote> motesUninit = new Vector<Mote>();
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private Vector<MoteType> moteTypes = new Vector<MoteType>();
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/* If true, run simulation at full speed */
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private boolean speedLimitNone = true;
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/* Limit simulation speed to maxSpeed; if maxSpeed is 1.0 simulation is run at real-time speed */
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private double speedLimit;
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/* Used to restrict simulation speed */
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private long speedLimitLastSimtime;
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private long speedLimitLastRealtime;
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private long lastStartTime;
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private long currentSimulationTime = 0;
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private String title = null;
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private RadioMedium currentRadioMedium = null;
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private static Logger logger = Logger.getLogger(Simulation.class);
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private boolean isRunning = false;
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private boolean stopSimulation = false;
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private Thread simulationThread = null;
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private Cooja cooja = null;
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private long randomSeed = 123456;
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private boolean randomSeedGenerated = false;
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private long maxMoteStartupDelay = 1000*MILLISECOND;
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private SafeRandom randomGenerator;
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private boolean hasMillisecondObservers = false;
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private MillisecondObservable millisecondObservable = new MillisecondObservable();
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private class MillisecondObservable extends Observable {
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private void newMillisecond(long time) {
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setChanged();
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notifyObservers(time);
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}
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}
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/* Event queue */
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private EventQueue eventQueue = new EventQueue();
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/* Poll requests */
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private boolean hasPollRequests = false;
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private ArrayDeque<Runnable> pollRequests = new ArrayDeque<Runnable>();
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/**
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* Request poll from simulation thread.
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* Poll requests are prioritized over simulation events, and are
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* executed between each simulation event.
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*
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* @param r Simulation thread action
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*/
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public void invokeSimulationThread(Runnable r) {
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synchronized (pollRequests) {
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pollRequests.addLast(r);
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hasPollRequests = true;
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}
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}
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private Runnable popSimulationInvokes() {
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Runnable r;
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synchronized (pollRequests) {
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r = pollRequests.pop();
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hasPollRequests = !pollRequests.isEmpty();
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}
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return r;
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}
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/**
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* Add millisecond observer.
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* This observer is notified once every simulated millisecond.
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*
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* @see #deleteMillisecondObserver(Observer)
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* @param newObserver Observer
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*/
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public void addMillisecondObserver(Observer newObserver) {
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millisecondObservable.addObserver(newObserver);
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hasMillisecondObservers = true;
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invokeSimulationThread(new Runnable() {
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public void run() {
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if (!millisecondEvent.isScheduled()) {
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scheduleEvent(
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millisecondEvent,
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currentSimulationTime - (currentSimulationTime % MILLISECOND) + MILLISECOND);
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}
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}
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});
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}
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/**
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* Delete millisecond observer.
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*
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* @see #addMillisecondObserver(Observer)
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* @param observer Observer to delete
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*/
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public void deleteMillisecondObserver(Observer observer) {
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millisecondObservable.deleteObserver(observer);
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hasMillisecondObservers = millisecondObservable.countObservers() > 0;
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}
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/**
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* @return True iff current thread is the simulation thread
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*/
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public boolean isSimulationThread() {
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return simulationThread == Thread.currentThread();
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}
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/**
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* Schedule simulation event for given time.
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* Already scheduled events must be removed before they are rescheduled.
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*
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* If the simulation is running, this method may only be called from the simulation thread.
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*
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* @see #invokeSimulationThread(Runnable)
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*
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* @param e Event
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* @param time Execution time
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*/
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public void scheduleEvent(final TimeEvent e, final long time) {
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if (isRunning) {
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/* TODO Strict scheduling from simulation thread */
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assert isSimulationThread() : "Scheduling event from non-simulation thread: " + e;
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}
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eventQueue.addEvent(e, time);
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}
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private TimeEvent delayEvent = new TimeEvent(0) {
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public void execute(long t) {
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if (speedLimitNone) {
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/* As fast as possible: no need to reschedule delay event */
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return;
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}
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long diffSimtime = (getSimulationTime() - speedLimitLastSimtime)/1000; /* ms */
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long diffRealtime = System.currentTimeMillis() - speedLimitLastRealtime; /* ms */
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long expectedDiffRealtime = (long) (diffSimtime/speedLimit);
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long sleep = expectedDiffRealtime - diffRealtime;
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if (sleep >= 0) {
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/* Slow down simulation */
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try {
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Thread.sleep(sleep);
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} catch (InterruptedException e) {
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}
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scheduleEvent(this, t+MILLISECOND);
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} else {
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/* Reduce slow-down: execute this delay event less often */
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scheduleEvent(this, t-sleep*MILLISECOND);
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}
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/* Update counters every second */
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if (diffRealtime > 1000) {
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speedLimitLastRealtime = System.currentTimeMillis();
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speedLimitLastSimtime = getSimulationTime();
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}
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}
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public String toString() {
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return "DELAY";
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}
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};
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private TimeEvent millisecondEvent = new TimeEvent(0) {
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public void execute(long t) {
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if (!hasMillisecondObservers) {
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return;
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}
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millisecondObservable.newMillisecond(getSimulationTime());
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scheduleEvent(this, t+MILLISECOND);
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}
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public String toString() {
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return "MILLISECOND: " + millisecondObservable.countObservers();
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}
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};
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public void clearEvents() {
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eventQueue.removeAll();
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pollRequests.clear();
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}
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public void run() {
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lastStartTime = System.currentTimeMillis();
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logger.info("Simulation main loop started, system time: " + lastStartTime);
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isRunning = true;
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speedLimitLastRealtime = System.currentTimeMillis();
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speedLimitLastSimtime = getSimulationTime();
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/* Simulation starting */
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this.setChanged();
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this.notifyObservers(this);
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TimeEvent nextEvent = null;
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try {
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while (isRunning) {
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/* Handle all poll requests */
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while (hasPollRequests) {
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popSimulationInvokes().run();
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}
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/* Handle one simulation event, and update simulation time */
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nextEvent = eventQueue.popFirst();
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if (nextEvent == null) {
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throw new RuntimeException("No more events");
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}
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if (nextEvent.time < currentSimulationTime) {
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throw new RuntimeException("Next event is in the past: " + nextEvent.time + " < " + currentSimulationTime + ": " + nextEvent);
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}
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currentSimulationTime = nextEvent.time;
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/*logger.info("Executing event #" + EVENT_COUNTER++ + " @ " + currentSimulationTime + ": " + nextEvent);*/
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nextEvent.execute(currentSimulationTime);
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if (stopSimulation) {
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isRunning = false;
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}
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}
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} catch (RuntimeException e) {
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if ("MSPSim requested simulation stop".equals(e.getMessage())) {
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/* XXX Should be*/
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logger.info("Simulation stopped due to MSPSim breakpoint");
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} else {
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logger.fatal("Simulation stopped due to error: " + e.getMessage(), e);
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if (!Cooja.isVisualized()) {
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/* Quit simulator if in test mode */
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System.exit(1);
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} else {
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String title = "Simulation error";
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if (nextEvent instanceof MoteTimeEvent) {
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title += ": " + ((MoteTimeEvent)nextEvent).getMote();
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}
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Cooja.showErrorDialog(Cooja.getTopParentContainer(), title, e, false);
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}
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}
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}
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isRunning = false;
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simulationThread = null;
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stopSimulation = false;
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this.setChanged();
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this.notifyObservers(this);
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logger.info("Simulation main loop stopped, system time: " + System.currentTimeMillis() +
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"\tDuration: " + (System.currentTimeMillis() - lastStartTime) +
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" ms" +
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"\tSimulated time " + getSimulationTimeMillis() +
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" ms\tRatio " +
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((double)getSimulationTimeMillis() /
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(double)(System.currentTimeMillis() - lastStartTime)));
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}
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/**
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* Creates a new simulation
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*/
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public Simulation(Cooja cooja) {
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this.cooja = cooja;
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randomGenerator = new SafeRandom(this);
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}
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/**
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* Starts this simulation (notifies observers).
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*/
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public void startSimulation() {
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if (!isRunning()) {
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isRunning = true;
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simulationThread = new Thread(this);
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simulationThread.setPriority(Thread.MIN_PRIORITY);
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simulationThread.start();
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}
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}
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/**
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* Stop simulation
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*
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* @param block Block until simulation has stopped, with timeout (100ms)
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*
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* @see #stopSimulation()
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*/
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public void stopSimulation(boolean block) {
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if (!isRunning()) {
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return;
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}
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stopSimulation = true;
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if (block) {
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if (Thread.currentThread() == simulationThread) {
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return;
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}
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/* Wait until simulation stops */
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try {
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Thread simThread = simulationThread;
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if (simThread != null) {
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simThread.join(100);
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}
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} catch (InterruptedException e) {
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}
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}
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}
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/**
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* Stop simulation (blocks).
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* Calls stopSimulation(true).
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*
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* @see #stopSimulation(boolean)
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*/
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public void stopSimulation() {
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stopSimulation(true);
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}
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/**
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* Starts simulation if stopped, executes one millisecond, and finally stops
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* simulation again.
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*/
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public void stepMillisecondSimulation() {
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if (isRunning()) {
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return;
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}
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TimeEvent stopEvent = new TimeEvent(0) {
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public void execute(long t) {
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/* Stop simulation */
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stopSimulation();
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}
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};
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scheduleEvent(stopEvent, getSimulationTime()+Simulation.MILLISECOND);
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startSimulation();
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}
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public Cooja getCooja() {
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return cooja;
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}
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/**
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* @return Random seed
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*/
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public long getRandomSeed() {
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return randomSeed;
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}
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/**
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* @return Random seed (converted to a string)
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*/
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public String getRandomSeedString() {
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return Long.toString(randomSeed);
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}
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/**
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* @param randomSeed Random seed
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*/
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public void setRandomSeed(long randomSeed) {
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this.randomSeed = randomSeed;
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randomGenerator.setSeed(randomSeed);
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logger.info("Simulation random seed: " + randomSeed);
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}
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/**
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* @param generated Autogenerated random seed at simulation load
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*/
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public void setRandomSeedGenerated(boolean generated) {
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this.randomSeedGenerated = generated;
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}
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/**
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* @return Autogenerated random seed at simulation load
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*/
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public boolean getRandomSeedGenerated() {
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return randomSeedGenerated;
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}
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public Random getRandomGenerator() {
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return randomGenerator;
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}
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/**
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* @return Maximum mote startup delay
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*/
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public long getDelayedMoteStartupTime() {
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return maxMoteStartupDelay;
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}
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/**
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* @param maxMoteStartupDelay Maximum mote startup delay
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*/
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public void setDelayedMoteStartupTime(long maxMoteStartupDelay) {
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this.maxMoteStartupDelay = Math.max(0, maxMoteStartupDelay);
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}
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private SimEventCentral eventCentral = new SimEventCentral(this);
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public SimEventCentral getEventCentral() {
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return eventCentral;
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}
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/**
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* Returns the current simulation config represented by XML elements. This
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* config also includes the current radio medium, all mote types and motes.
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*
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* @return Current simulation config
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*/
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public Collection<Element> getConfigXML() {
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ArrayList<Element> config = new ArrayList<Element>();
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Element element;
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// Title
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element = new Element("title");
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element.setText(title);
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config.add(element);
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/* Max simulation speed */
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if (!speedLimitNone) {
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element = new Element("speedlimit");
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element.setText("" + getSpeedLimit());
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config.add(element);
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}
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// Random seed
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element = new Element("randomseed");
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if (randomSeedGenerated) {
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element.setText("generated");
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} else {
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element.setText(Long.toString(getRandomSeed()));
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}
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config.add(element);
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// Max mote startup delay
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element = new Element("motedelay_us");
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element.setText(Long.toString(maxMoteStartupDelay));
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config.add(element);
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// Radio Medium
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element = new Element("radiomedium");
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element.setText(currentRadioMedium.getClass().getName());
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Collection<Element> radioMediumXML = currentRadioMedium.getConfigXML();
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if (radioMediumXML != null) {
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element.addContent(radioMediumXML);
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}
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config.add(element);
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/* Event central */
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element = new Element("events");
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element.addContent(eventCentral.getConfigXML());
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config.add(element);
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// Mote types
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for (MoteType moteType : getMoteTypes()) {
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element = new Element("motetype");
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element.setText(moteType.getClass().getName());
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Collection<Element> moteTypeXML = moteType.getConfigXML(this);
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if (moteTypeXML != null) {
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element.addContent(moteTypeXML);
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}
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config.add(element);
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}
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// Motes
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for (Mote mote : motes) {
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element = new Element("mote");
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Collection<Element> moteConfig = mote.getConfigXML();
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if (moteConfig == null) {
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moteConfig = new ArrayList<Element>();
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}
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/* Add mote type identifier */
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Element typeIdentifier = new Element("motetype_identifier");
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typeIdentifier.setText(mote.getType().getIdentifier());
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moteConfig.add(typeIdentifier);
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element.addContent(moteConfig);
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config.add(element);
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}
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return config;
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}
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/* indicator to components setting up that they need to respect the fast setup mode */
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private boolean quick = false;
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public boolean isQuickSetup() {
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return quick;
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}
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public void setQuickSetup(boolean q) {
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quick = q;
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}
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/**
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* Sets the current simulation config depending on the given configuration.
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*
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* @param configXML Simulation configuration
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* @param visAvailable True if simulation is allowed to show visualizers
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* @param manualRandomSeed Simulation random seed. May be null, in which case the configuration is used
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* @return True if simulation was configured successfully
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* @throws Exception If configuration could not be loaded
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*/
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public boolean setConfigXML(Collection<Element> configXML,
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boolean visAvailable, boolean quick, Long manualRandomSeed) throws Exception {
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setQuickSetup(quick);
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// Parse elements
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for (Element element : configXML) {
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// Title
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if (element.getName().equals("title")) {
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title = element.getText();
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}
|
|
|
|
/* Max simulation speed */
|
|
if (element.getName().equals("speedlimit")) {
|
|
String text = element.getText();
|
|
if (text.equals("null")) {
|
|
setSpeedLimit(null);
|
|
} else {
|
|
setSpeedLimit(Double.parseDouble(text));
|
|
}
|
|
}
|
|
|
|
// Random seed
|
|
if (element.getName().equals("randomseed")) {
|
|
long newSeed;
|
|
|
|
if (element.getText().equals("generated")) {
|
|
randomSeedGenerated = true;
|
|
newSeed = new Random().nextLong();
|
|
} else {
|
|
newSeed = Long.parseLong(element.getText());
|
|
}
|
|
if (manualRandomSeed != null) {
|
|
newSeed = manualRandomSeed;
|
|
}
|
|
|
|
setRandomSeed(newSeed);
|
|
}
|
|
|
|
// Max mote startup delay
|
|
if (element.getName().equals("motedelay")) {
|
|
maxMoteStartupDelay = Integer.parseInt(element.getText())*MILLISECOND;
|
|
}
|
|
if (element.getName().equals("motedelay_us")) {
|
|
maxMoteStartupDelay = Integer.parseInt(element.getText());
|
|
}
|
|
|
|
// Radio medium
|
|
if (element.getName().equals("radiomedium")) {
|
|
String radioMediumClassName = element.getText().trim();
|
|
|
|
/* Backwards compatibility: se.sics -> org.contikios */
|
|
if (radioMediumClassName.startsWith("se.sics")) {
|
|
radioMediumClassName = radioMediumClassName.replaceFirst("se\\.sics", "org.contikios");
|
|
}
|
|
|
|
Class<? extends RadioMedium> radioMediumClass = cooja.tryLoadClass(
|
|
this, RadioMedium.class, radioMediumClassName);
|
|
|
|
if (radioMediumClass != null) {
|
|
// Create radio medium specified in config
|
|
try {
|
|
currentRadioMedium = RadioMedium.generateRadioMedium(radioMediumClass, this);
|
|
} catch (Exception e) {
|
|
currentRadioMedium = null;
|
|
logger.warn("Could not load radio medium class: " + radioMediumClassName);
|
|
}
|
|
}
|
|
|
|
// Show configure simulation dialog
|
|
boolean createdOK = false;
|
|
if (visAvailable && !quick) {
|
|
createdOK = CreateSimDialog.showDialog(Cooja.getTopParentContainer(), this);
|
|
} else {
|
|
createdOK = true;
|
|
}
|
|
|
|
if (!createdOK) {
|
|
logger.debug("Simulation not created, aborting");
|
|
throw new Exception("Load aborted by user");
|
|
}
|
|
|
|
// Check if radio medium specific config should be applied
|
|
if (radioMediumClassName.equals(currentRadioMedium.getClass().getName())) {
|
|
currentRadioMedium.setConfigXML(element.getChildren(), visAvailable);
|
|
} else {
|
|
logger.info("Radio Medium changed - ignoring radio medium specific config");
|
|
}
|
|
}
|
|
|
|
/* Event central */
|
|
if (element.getName().equals("events")) {
|
|
eventCentral.setConfigXML(this, element.getChildren(), visAvailable);
|
|
}
|
|
|
|
// Mote type
|
|
if (element.getName().equals("motetype")) {
|
|
String moteTypeClassName = element.getText().trim();
|
|
|
|
/* Backwards compatibility: se.sics -> org.contikios */
|
|
if (moteTypeClassName.startsWith("se.sics")) {
|
|
moteTypeClassName = moteTypeClassName.replaceFirst("se\\.sics", "org.contikios");
|
|
}
|
|
|
|
/* Try to recreate simulation using a different mote type */
|
|
if (visAvailable && !quick) {
|
|
String[] availableMoteTypes = getCooja().getProjectConfig().getStringArrayValue("org.contikios.cooja.Cooja.MOTETYPES");
|
|
String newClass = (String) JOptionPane.showInputDialog(
|
|
Cooja.getTopParentContainer(),
|
|
"The simulation is about to load '" + moteTypeClassName + "'\n" +
|
|
"You may try to load the simulation using a different mote type.\n",
|
|
"Loading mote type",
|
|
JOptionPane.QUESTION_MESSAGE,
|
|
null,
|
|
availableMoteTypes,
|
|
moteTypeClassName
|
|
);
|
|
if (newClass == null) {
|
|
throw new MoteType.MoteTypeCreationException("No mote type class selected");
|
|
}
|
|
if (!newClass.equals(moteTypeClassName)) {
|
|
logger.warn("Changing mote type class: " + moteTypeClassName + " -> " + newClass);
|
|
moteTypeClassName = newClass;
|
|
}
|
|
}
|
|
|
|
Class<? extends MoteType> moteTypeClass = cooja.tryLoadClass(this,
|
|
MoteType.class, moteTypeClassName);
|
|
|
|
if (moteTypeClass == null) {
|
|
logger.fatal("Could not load mote type class: " + moteTypeClassName);
|
|
throw new MoteType.MoteTypeCreationException("Could not load mote type class: " + moteTypeClassName);
|
|
}
|
|
|
|
MoteType moteType = moteTypeClass.getConstructor((Class[]) null).newInstance();
|
|
|
|
boolean createdOK = moteType.setConfigXML(this, element.getChildren(),
|
|
visAvailable);
|
|
if (createdOK) {
|
|
addMoteType(moteType);
|
|
} else {
|
|
logger
|
|
.fatal("Mote type was not created: " + element.getText().trim());
|
|
throw new Exception("All mote types were not recreated");
|
|
}
|
|
}
|
|
|
|
/* Mote */
|
|
if (element.getName().equals("mote")) {
|
|
|
|
/* Read mote type identifier */
|
|
MoteType moteType = null;
|
|
for (Element subElement: (Collection<Element>) element.getChildren()) {
|
|
if (subElement.getName().equals("motetype_identifier")) {
|
|
moteType = getMoteType(subElement.getText());
|
|
if (moteType == null) {
|
|
throw new Exception("No mote type '" + subElement.getText() + "' for mote");
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (moteType == null) {
|
|
throw new Exception("No mote type specified for mote");
|
|
}
|
|
|
|
/* Create mote using mote type */
|
|
Mote mote = moteType.generateMote(this);
|
|
if (mote.setConfigXML(this, element.getChildren(), visAvailable)) {
|
|
if (getMoteWithID(mote.getID()) != null) {
|
|
logger.warn("Ignoring duplicate mote ID: " + mote.getID());
|
|
} else {
|
|
addMote(mote);
|
|
}
|
|
} else {
|
|
logger.fatal("Mote was not created: " + element.getText().trim());
|
|
throw new Exception("All motes were not recreated");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (currentRadioMedium != null) {
|
|
currentRadioMedium.simulationFinishedLoading();
|
|
}
|
|
|
|
setChanged();
|
|
notifyObservers(this);
|
|
|
|
/* Execute simulation thread events now, before simulation starts */
|
|
while (hasPollRequests) {
|
|
popSimulationInvokes().run();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Removes a mote from this simulation
|
|
*
|
|
* @param mote
|
|
* Mote to remove
|
|
*/
|
|
public void removeMote(final Mote mote) {
|
|
|
|
/* Simulation is running, remove mote in simulation loop */
|
|
Runnable removeMote = new Runnable() {
|
|
public void run() {
|
|
motes.remove(mote);
|
|
motesUninit.remove(mote);
|
|
currentRadioMedium.unregisterMote(mote, Simulation.this);
|
|
|
|
/* Dispose mote interface resources */
|
|
mote.removed();
|
|
for (MoteInterface i: mote.getInterfaces().getInterfaces()) {
|
|
i.removed();
|
|
}
|
|
|
|
setChanged();
|
|
notifyObservers(mote);
|
|
|
|
/* Loop through all scheduled events.
|
|
* Delete all events associated with deleted mote. */
|
|
TimeEvent ev = eventQueue.peekFirst();
|
|
while (ev != null) {
|
|
if (ev instanceof MoteTimeEvent) {
|
|
if (((MoteTimeEvent)ev).getMote() == mote) {
|
|
ev.remove();
|
|
}
|
|
}
|
|
ev = ev.nextEvent;
|
|
}
|
|
}
|
|
};
|
|
|
|
if (!isRunning()) {
|
|
/* Simulation is stopped, remove mote immediately */
|
|
removeMote.run();
|
|
} else {
|
|
/* Remove mote from simulation thread */
|
|
invokeSimulationThread(removeMote);
|
|
}
|
|
|
|
getCooja().closeMotePlugins(mote);
|
|
}
|
|
|
|
/**
|
|
* Called to free resources used by the simulation.
|
|
* This method is called just before the simulation is removed.
|
|
*/
|
|
public void removed() {
|
|
/* Remove radio medium */
|
|
if (currentRadioMedium != null) {
|
|
currentRadioMedium.removed();
|
|
}
|
|
|
|
/* Remove all motes */
|
|
Mote[] motes = getMotes();
|
|
for (Mote m: motes) {
|
|
removeMote(m);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds a mote to this simulation
|
|
*
|
|
* @param mote
|
|
* Mote to add
|
|
*/
|
|
public void addMote(final Mote mote) {
|
|
Runnable addMote = new Runnable() {
|
|
public void run() {
|
|
if (mote.getInterfaces().getClock() != null) {
|
|
if (maxMoteStartupDelay > 0) {
|
|
mote.getInterfaces().getClock().setDrift(
|
|
- getSimulationTime()
|
|
- randomGenerator.nextInt((int)maxMoteStartupDelay)
|
|
);
|
|
} else {
|
|
mote.getInterfaces().getClock().setDrift(-getSimulationTime());
|
|
}
|
|
}
|
|
|
|
motes.add(mote);
|
|
motesUninit.remove(mote);
|
|
currentRadioMedium.registerMote(mote, Simulation.this);
|
|
|
|
/* Notify mote interfaces that node was added */
|
|
for (MoteInterface i: mote.getInterfaces().getInterfaces()) {
|
|
i.added();
|
|
}
|
|
|
|
setChanged();
|
|
notifyObservers(mote);
|
|
cooja.updateGUIComponentState();
|
|
}
|
|
};
|
|
|
|
//Add to list of uninitialized motes
|
|
motesUninit.add(mote);
|
|
|
|
if (!isRunning()) {
|
|
/* Simulation is stopped, add mote immediately */
|
|
addMote.run();
|
|
} else {
|
|
/* Add mote from simulation thread */
|
|
invokeSimulationThread(addMote);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Returns simulation mote at given list position.
|
|
*
|
|
* @param pos Internal list position of mote
|
|
* @return Mote
|
|
* @see #getMotesCount()
|
|
* @see #getMoteWithID(int)
|
|
*/
|
|
public Mote getMote(int pos) {
|
|
return motes.get(pos);
|
|
}
|
|
|
|
/**
|
|
* Returns simulation with with given ID.
|
|
*
|
|
* @param id ID
|
|
* @return Mote or null
|
|
* @see Mote#getID()
|
|
*/
|
|
public Mote getMoteWithID(int id) {
|
|
for (Mote m: motes) {
|
|
if (m.getID() == id) {
|
|
return m;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Returns uninitialised simulation mote with with given ID.
|
|
*
|
|
* @param id ID
|
|
* @return Mote or null
|
|
* @see Mote#getID()
|
|
*/
|
|
public Mote getMoteWithIDUninit(int id) {
|
|
for (Mote m: motesUninit) {
|
|
if (m.getID() == id) {
|
|
return m;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Returns number of motes in this simulation.
|
|
*
|
|
* @return Number of motes
|
|
*/
|
|
public int getMotesCount() {
|
|
return motes.size();
|
|
}
|
|
|
|
/**
|
|
* Returns all motes in this simulation.
|
|
*
|
|
* @return Motes
|
|
*/
|
|
public Mote[] getMotes() {
|
|
Mote[] arr = new Mote[motes.size()];
|
|
motes.toArray(arr);
|
|
return arr;
|
|
}
|
|
|
|
/**
|
|
* Returns uninitialised motes
|
|
*
|
|
* @return Motes
|
|
*/
|
|
public Mote[] getMotesUninit() {
|
|
return motesUninit.toArray(new Mote[motesUninit.size()]);
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns all mote types in simulation.
|
|
*
|
|
* @return All mote types
|
|
*/
|
|
public MoteType[] getMoteTypes() {
|
|
MoteType[] types = new MoteType[moteTypes.size()];
|
|
moteTypes.toArray(types);
|
|
return types;
|
|
}
|
|
|
|
/**
|
|
* Returns mote type with given identifier.
|
|
*
|
|
* @param identifier
|
|
* Mote type identifier
|
|
* @return Mote type or null if not found
|
|
*/
|
|
public MoteType getMoteType(String identifier) {
|
|
for (MoteType moteType : getMoteTypes()) {
|
|
if (moteType.getIdentifier().equals(identifier)) {
|
|
return moteType;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Adds given mote type to simulation.
|
|
*
|
|
* @param newMoteType Mote type
|
|
*/
|
|
public void addMoteType(MoteType newMoteType) {
|
|
moteTypes.add(newMoteType);
|
|
|
|
this.setChanged();
|
|
this.notifyObservers(this);
|
|
}
|
|
|
|
/**
|
|
* Remove given mote type from simulation.
|
|
*
|
|
* @param type Mote type
|
|
*/
|
|
public void removeMoteType(MoteType type) {
|
|
if (!moteTypes.contains(type)) {
|
|
logger.fatal("Mote type is not registered: " + type);
|
|
return;
|
|
}
|
|
|
|
/* Remove motes */
|
|
for (Mote m: getMotes()) {
|
|
if (m.getType() == type) {
|
|
removeMote(m);
|
|
}
|
|
}
|
|
|
|
moteTypes.remove(type);
|
|
this.setChanged();
|
|
this.notifyObservers(this);
|
|
}
|
|
|
|
/**
|
|
* Limit simulation speed to given ratio.
|
|
* This method may be called from outside the simulation thread.
|
|
* @param newSpeedLimit
|
|
*/
|
|
public void setSpeedLimit(final Double newSpeedLimit) {
|
|
Runnable r = new Runnable() {
|
|
public void run() {
|
|
if (newSpeedLimit == null) {
|
|
speedLimitNone = true;
|
|
return;
|
|
}
|
|
|
|
speedLimitNone = false;
|
|
speedLimitLastRealtime = System.currentTimeMillis();
|
|
speedLimitLastSimtime = getSimulationTime();
|
|
speedLimit = newSpeedLimit.doubleValue();
|
|
|
|
if (delayEvent.isScheduled()) {
|
|
delayEvent.remove();
|
|
}
|
|
scheduleEvent(delayEvent, currentSimulationTime);
|
|
Simulation.this.setChanged();
|
|
Simulation.this.notifyObservers(this);
|
|
}
|
|
};
|
|
if (!isRunning()) {
|
|
/* Simulation is stopped, change speed immediately */
|
|
r.run();
|
|
} else {
|
|
/* Change speed from simulation thread */
|
|
invokeSimulationThread(r);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return Max simulation speed ratio. Returns null if no limit.
|
|
*/
|
|
public Double getSpeedLimit() {
|
|
if (speedLimitNone) {
|
|
return null;
|
|
}
|
|
return new Double(speedLimit);
|
|
}
|
|
|
|
/**
|
|
* Set simulation time to simulationTime.
|
|
*
|
|
* @param simulationTime
|
|
* New simulation time (ms)
|
|
*/
|
|
public void setSimulationTime(long simulationTime) {
|
|
currentSimulationTime = simulationTime;
|
|
|
|
this.setChanged();
|
|
this.notifyObservers(this);
|
|
}
|
|
|
|
/**
|
|
* Returns current simulation time.
|
|
*
|
|
* @return Simulation time (microseconds)
|
|
*/
|
|
public long getSimulationTime() {
|
|
return currentSimulationTime;
|
|
}
|
|
|
|
/**
|
|
* Returns current simulation time rounded to milliseconds.
|
|
*
|
|
* @see #getSimulationTime()
|
|
* @return Time rounded to milliseconds
|
|
*/
|
|
public long getSimulationTimeMillis() {
|
|
return currentSimulationTime / MILLISECOND;
|
|
}
|
|
|
|
/**
|
|
* Return the actual time value corresponding to an argument which
|
|
* is a simulation time value in microseconds.
|
|
*
|
|
* @return Actual time (microseconds)
|
|
*/
|
|
public long convertSimTimeToActualTime(long simTime) {
|
|
return simTime + lastStartTime * 1000;
|
|
}
|
|
|
|
/**
|
|
* Changes radio medium of this simulation to the given.
|
|
*
|
|
* @param radioMedium
|
|
* New radio medium
|
|
*/
|
|
public void setRadioMedium(RadioMedium radioMedium) {
|
|
// Remove current radio medium from observing motes
|
|
if (currentRadioMedium != null) {
|
|
for (int i = 0; i < motes.size(); i++) {
|
|
currentRadioMedium.unregisterMote(motes.get(i), this);
|
|
}
|
|
}
|
|
|
|
// Change current radio medium to new one
|
|
if (radioMedium == null) {
|
|
logger.fatal("Radio medium could not be created.");
|
|
return;
|
|
}
|
|
this.currentRadioMedium = radioMedium;
|
|
|
|
// Add all current motes to the new radio medium
|
|
for (int i = 0; i < motes.size(); i++) {
|
|
currentRadioMedium.registerMote(motes.get(i), this);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get currently used radio medium.
|
|
*
|
|
* @return Currently used radio medium
|
|
*/
|
|
public RadioMedium getRadioMedium() {
|
|
return currentRadioMedium;
|
|
}
|
|
|
|
/**
|
|
* Return true is simulation is running.
|
|
*
|
|
* @return True if simulation is running
|
|
*/
|
|
public boolean isRunning() {
|
|
return isRunning && simulationThread != null;
|
|
}
|
|
|
|
/**
|
|
* Return true is simulation is runnable.
|
|
*
|
|
* @return True if simulation is runnable
|
|
*/
|
|
public boolean isRunnable() {
|
|
return isRunning || hasPollRequests || eventQueue.peekFirst() != null;
|
|
}
|
|
|
|
/**
|
|
* Get current simulation title (short description).
|
|
*
|
|
* @return Title
|
|
*/
|
|
public String getTitle() {
|
|
return title;
|
|
}
|
|
|
|
/**
|
|
* Set simulation title.
|
|
*
|
|
* @param title
|
|
* New title
|
|
*/
|
|
public void setTitle(String title) {
|
|
this.title = title;
|
|
}
|
|
}
|